Datasets:

nardus_link
stringlengths
47
48
file_name
stringlengths
18
19
srpski
stringclasses
2 values
ARR
stringclasses
2 values
fulltext_url
stringlengths
0
201
need_ocr
stringclasses
3 values
title_sr
stringlengths
11
267
title_en
stringlengths
0
918
dc.contributor.advisor
sequencelengths
1
4
dc.contributor.other
sequencelengths
1
11
dc.creator
stringlengths
0
40
dc.date.accessioned
timestamp[s]
dc.date.available
sequencelengths
1
4
dc.date.issued
stringlengths
0
10
dc.identifier.uri
sequencelengths
1
6
dc.description.abstract_sr
sequencelengths
1
3
dc.description.abstract_en
sequencelengths
1
2
dc.format
stringclasses
2 values
dc.language
stringclasses
15 values
dc.publisher
stringclasses
141 values
dc.relation
sequencelengths
1
5
dc.rights
sequencelengths
1
2
dc.rights.uri
sequencelengths
1
1
dc.source
stringclasses
19 values
dc.subject_sr
sequencelengths
1
46
dc.subject_en
sequencelengths
1
68
dc.title
sequencelengths
1
3
dc.title.alternative
sequencelengths
1
5
dc.type
stringclasses
6 values
dc.rights.license
sequencelengths
1
1
dcterms.abstract
stringlengths
0
660
dc.identifier.fulltext
sequencelengths
1
14
dc.identifier.rcub
sequencelengths
1
1
dc.identifier.doi
stringclasses
971 values
dc.language.iso
stringclasses
9 values
dc.subject.classification
sequencelengths
1
4
dc.description.abstract_
sequencelengths
1
1
dc.description.abstract_fr
sequencelengths
1
1
dc.description.abstract_en_US
sequencelengths
1
1
dc.identifier
sequencelengths
1
3
dc.subject_hu
sequencelengths
1
20
dc.description.abstract_ru
sequencelengths
1
1
dcterms.title
stringclasses
2 values
dc.subject_fr
sequencelengths
1
6
dc.subject_
sequencelengths
1
18
dc.subject_ge
sequencelengths
1
11
dc.description.abstract_hu
sequencelengths
1
1
dc.subject_sl
sequencelengths
1
5
dc.date.submitted
stringclasses
257 values
dc.contributor.coadvisor
stringclasses
49 values
dc.description.abstract_de
sequencelengths
1
1
dc.subject_Engleski
sequencelengths
1
14
dc.date.updated
stringclasses
2 values
dc.description
stringclasses
152 values
dc.contributor
stringclasses
11 values
dc.date
stringclasses
4 values
dc.contributor.author
stringclasses
4 values
dc.description.other
stringclasses
2 values
dc.identifier.cobiss
stringclasses
4 values
dc.type.version
stringclasses
2 values
dc.subject_ru
sequencelengths
1
4
dc.description.abstract_ge
sequencelengths
1
1
https://nardus.mpn.gov.rs/handle/123456789/2060
123456789-2060.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3419/bdef:Content/download
no
Efekti i mehanizmi delovanja interleukina-17 na funkcije mezenhimskih i endotelskih ćelija
Effects of interleukin-17 on mesenchymal and endothelial cell functions and mechanisms involved
[ "Bugarski, Diana" ]
[ "Korać, Aleksandra", "Santibañez, Juan" ]
Kocić, Jelena S.
2016-01-05T11:46:17
[ "2016-01-05T11:46:17", "2020-07-03T08:08:30" ]
2012-10-01
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=64", "https://nardus.mpn.gov.rs/handle/123456789/2060", "https://fedorabg.bg.ac.rs/fedora/get/o:3419/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024511922" ]
[ "Interleukin (IL) 17 familija citokina se smatra najmanje istraženom citokinskom familijom sa značajnom ulogom u procesu inflamacije. Ubikvitarna rasprostranjenost receptora za IL-17 omogućava ovom citokinu mnogobrojne biološke efekte u organizmu, poput važne uloge u imunskom odgovoru i regulaciji procesa hematopoeze, ali i u progresiji različitih bolesti, uključujući inflamatorna, autoimunska i maligna oboljenja. IL-17 ima ulogu u ćelijskim procesima poput proliferacije i diferencijacije, i to prvenstveno na hematopoetskim matičnim i progenitor ćelijama, pri čemu IL-17 ispoljava različite efekte na proliferaciju i diferencijaciju zavisno od tipa ćelijske loze i stepena diferencijacije ćelija. Takoñe, zbog ubikvitarne rasprostranjenosti svog receptora, IL-17 je uključen u interakcije izmeñu imunskog sistema i somatskih tkiva. Novija istraživanja su pokazala da IL-17 ima i ulogu finog regulatora diferencijacije mezenhimskih matičnih ćelija (MSC, Mesenchymal stem cells), s obzirom na to da stimuliše osteogenu diferencijaciju dok, s druge strane, inhibira adipogenu diferencijciju humanih MSC. Savremena istraživanja biologije MSC ukazala su na širok opseg njihove potencijalne terapijske primene, prvenstveno u regenerativnoj medicini, jer ove multipotentne adultne matične ćelije koje predstavljaju nediferencirane ćelije sa sposobnošću samoobnove, imaju sposobnost diferenciranja u ćelije tkiva mezenhimskog porekla, poput osteoblasta, hondroblasta i adipocita, a prema saznanjima koja imamo danas, i u ćelije tkiva ektodermalnog i endodermalnog porekla. Matične ćelije različitog stepena multipotentnosti izolovane su iz raznih adultnih tkiva, kao i perinatalnih tkiva koja se poslednjih godina sve češće pominju kao povoljan izvor MSC. Meñutim, i pored velikog napretka u ovoj oblasti, nema konačnih saznanja kako o mehanizmima odgovornim za regulaciju višestrukih funkcija MSC, tako i o njihovom ukupnom terapijskom potencijalu. Kako biološke funkcije MSC umnogome zavise od konteksta mikrosredine, ispitivanje interakcija MSC i IL-17 u održavanju multipotentnosti, mobilizaciji i usmerenoj diferencijaciji MSC je od posebnog značaja. Pored mezenhimskih ćelija, IL-17 ostvaruje svoje efekte delovanjem na endotelske ćelije. Jedan od terapijskih ciljeva u regenerativnoj medicini, koji je još uvek nedovoljno objašnjen, je i podsticanje revaskularizacije oštećenog tkiva. Stimulacija postojećih, in situ prisutnih endotelskih ćelija na angiogenezu je jedan od mogućih mehanizama. Efekti IL-17 na endotelske ćelije nisu do sada u potpunosti opisani, i poznato je samo da IL-17 u prisustvu drugih poznatih angiogenih faktora stimuliše sposobnost endotelskih ćelija za angiogenezu. Pored toga, poznato je da se funkcije ćelija kao i delovanje citokina značajano razlikuju u zavisnosti od procenta kiseonika prisutnog u mikrosredini ćelija. Efekat delovanja IL-17 na endotelske ćelije u prisustvu različitih koncentracija kiseonika do sada nije istraživan. Takoñe je još uvek nepoznato da li IL-17 može uticati na diferencijaciju MSC u endotelske ćelije. Da bi se sprovela istraživanja u ovom pravcu, neophodno je uspostaviti pogodan model za diferencijaciju MSC u endotelske ćelije Cilj istraživanja ove disertacije bilo je ispitivanje efekata IL-17 na različite ćelijske funkcije mezenhimskih i endotelskih ćelija u specifičnim uslovima mikrosredine. Analizirano je dejstvo IL-17 na proliferaciju, migraciju, angiogenezu i diferencijaciju ćelija. Istraživani su i molekularni mehanizmi koji omogućavaju finu regulaciju ćelijskih funkcija od strane IL-17, analizom aktivacije signalnih molekula, kao i ekspresije gena i proteina neophodnih za specifične funkcije. Posebna pažnja u istraživanjima bila je posvećena izolaciji, karakterizaciji i endotelskoj diferencijaciji primarnih MSC iz tkiva pupčanika (UC-MSC, Umbilical cord-mesenchymal stem cells). U okviru razjašnjavanja efekata i mehanizama delovanja IL-17 na diferencijaciju mezenhimskih ćelija, primenjena je multipotentna mišja C2C12 ćelijska linija. Uticaj IL-17 na diferencijaciju analiziran je na osnovu ekspresije gena i proteina specifičnih za odreñeni tip diferencijacije: teškog lanca miozina (MyHC, Myosin heavy chain) i miogenina za miogenu, a alkalne fosfataze (ALP, Alkaline phosphatase), Runx2/Cbfa1 (Runt-related transcription factor 2/Core-binding factor subunit alpha-1) transkripcionog faktora i ciklooksigenaze 2 (Cox-2, Cyclooxygenase 2) za osteogenu diferencijaciju. Pored toga, utvrñivano je učešće mitogenom aktiviranih protein kinaza (MAPK) i morfogenetskih proteina kosti (BMP, Bone morphogenic proteins) u IL-17-usmerenoj diferencijaciji C2C12 ćelija. Rezultati su pokazali da IL-17 inhibira miogenu i stimuliše osteogenu diferencijaciju C2C12 ćelija, s obzirom na to da je IL-17-zavisna inhibicija miogeneze povezana sa redukcijom ekspresije iRNK za miogenin, redukcijom ekspresije MyHC i izostankom formiranja miotuba, dok je IL-17-zavisna indukcija osteogeneze povezana sa indukcijom ekspresije iRNK za Runx2/Cbfa1, indukcijom ekspresije Cox-2 i povišenom aktivnošću ALP. Rezultati su takoñe pokazali da IL-17 ostvaruje ove efekte putem aktivacije ERK1,2 MAPK signalnog puta, nezavisno od BMP-Smad signalnog puta. U drugom delu ove studije ispitivan je efekat IL-17 na funkcije endotelskih ćelija na modelu humane endotelske ćelijske linije, EA.hy 926, praćenjem njihove proliferacije, migracije i tubulogeneze u uslovima normoksije i hipoksije. Analizirana je i ekspresija gena za endotelsku azot monoksid sintazu (eNOS, Endothelial nitric oxide synthase) i Cox-2, kao i njihovih proteinskih produkata, budući da ovi molekuli imaju važnu ulogu u procesu angiogeneze. Dobijeni rezultati su potvrdili da IL-17 stimuliše ključne funkcije uključene u proces angiogeneze EA.hy 926 ćelija, poput ćelijske migracije i tubulogneze, kao i ekspresiju eNOS i Cox-2 u ovim ćelijama. Pro-angiogeni efekti IL-17 su pokazani u uslovima normoksije (20% O2). Uslovi hipoksije (3% O2) pokazali su toksično dejstvo na ovu ćelijsku liniju, dok je IL-17 u ovakvim uslovima umanjio broj apoptotičnih ćelija. U okviru trećeg dela ove disertacije MSC su izolovane iz vezivnog tkiva pupčanika, tzv. Vartonove sluzi, umnožene i okarakterisane prema važećim preporukama i kriterijumima Meñunarodnog društva za ćelijsku terapiju. Zatim je ispitan i odreñen optimalni protokol za njihovu efikasnu diferencijaciju u endotelske ćelije, u cilju uspostavljanja novog ćelijskog modela za buduća istraživanja. Princip diferenciranja UC-MSC u endotelske ćelije zasnivao se na inhibiciji signalizacije faktora transformacije rasta (TGF-β, Transforming growth factor beta), i to njegovog receptora, aktivinu-nalik kinaze 5 (ALK5, Activin-like kinase). Na osnovu dobijenih rezultata, zaključeno je da se UC-MSC odlikuju visokom sposobnošću samoobnove i visokim kapacitetom za diferencijaciju kao i da se mogu diferencirati u endotelske ćelije putem inhibicije ALK5 receptora" ]
[ "Interleukin (IL) 17 cytokine family is considered the least explored cytokine family with an important role in inflammation. Due to the ubiquitous expression of its receptor, IL-17 has been implicated in interactions between the immune system and somatic tissues. In this context, recent findings have shown that IL-17 acts as a fine regulator of mesenchymal stem cell (MSC) differentiation. Having in mind that behaviour of MSC depends on the surrounding microenvironment, it is important to analyze the interactions between MSC and IL-17 involved in the maintenance of their multipotency, mobilization and directed differentiation. In addition to mesenchymal cells, IL-17 exerts its roles by acting on endothelial cells as well. Even though IL-17’s effects on endothelial cells have not been fully discovered yet, it is well known that IL- 17, in the presence of other angiogenic factors, has the ability to stimulate endothelial cells to undergo angiogenesis. Furthermore, it is well known that cellular functions, as well as cytokine effects can be significantly modulated by the percentage of oxygen present in their microenvironment. However, effects of IL-17 on endothelial cells in the context of different O2 concentrations have not been explored yet. Also, it is still unknown whether IL-17 can affect endothelial differentiation of MSC, but to address this issue, it is necessary to create a valid model of endothelial differentiation of MSC. The objective of this study was to investigate the effects of IL-17 on different functions of mesenchymal and endothelial cells in specific microenvironmental conditions. The influence of IL-17 on proliferation, migration, angiogenesis and differentiation was analyzed, as well as the molecular mechanisms involved. The activation of various signaling molecules and the expression of genes and proteins involved in specific functions were examined. Yet another objective was to establish an appropriate model for the mesenchymal-endothelial transdifferentiation. For this task primary MSC from umbilical cord tissue (UC-MSC) were isolated and characterized with emphases on their endothelial differentiation. In order to elucidate the effects and mechanisms involved in IL-17 acting on mesenchymal cell differentiation, a multipotent mouse C2C12 cell line was used. The influence of IL-17 on cell differentiation was analyzed based on the expression of genes and proteins specific for the certain type of differentiation: Myosin heavy chain (MyHC) and Myogenin for myogenic, and Alkaline phosphatase (ALP), Runt-related transcription factor 2/Core-binding factor subunit alpha-1 (Runx2/Cbfa1) and Cyclooxygenase-2 (Cox-2) for osteogenic differentiation. Additionaly, the involvement of Mitogen-activated protein kinases (MAPK) and Bone morphogenetic proteins (BMP) in IL-17-directed differentiation of C2C12 cells was investigated. Results obtained demonstrated that IL-17 inhibits myogenic and stimulates osteogenic differentiation of C2C12 cells, by down-regulating the Myogenin mRNA expression, MyHC expression and myotube formation, while up-regulating the Runx2/Cbfa1 mRNK expression, Cox- 2 expression and ALP activity. IL-17 exerted these effects by activating ERK1,2 MAPK signaling pathway, which in turn regulated the expression of relevant genes and proteins to inhibit myogenic differentiation and induce osteogenic differentiation. It was also shown that the induction of osteogenic differentiation by IL-17 is independent of the BMP-Smad signaling pathway. In the second part of this study the effect of IL-17 on endothelial cell functions was investigated using human endothelial cell line EA.hy 926 as a model. The changes in cells’ proliferation, migration and tubulogenesis were analyzed, along with the expression of genes for endothelial Nitric oxide synthase (eNOS) and Cox-2, and their corresponding protein products, since these molecules have important roles in angiogenesis. The influence of the environmental stimuli (normoxia vs. hypoxia) was also investigated. Results obtained demonstrated that IL-17 stimulates crutial events involved in angiogenesis of EA.hy 926 cells, such as cell migration and tubulogenesis, along with the expression of eNOS and Cox-2. However, the effects of IL-17 were dependent on the O2 concentration, since pro-angiogenic effects of IL-17 were noticed in the presence of 20% O2, while 3% O2 exerted toxic effect on this cell line, and IL-17 in these conditions decreased the number of apoptotic cells. In the final task, MSC were isolated from the umbilical cord Wharton’s jelly, expanded in culture and characterized according to the recomendations from the International Society for Cell Therapy. Following this, an optimal protocol for the endothelial diffrentiation of UC-MSC was established. The endothelial-directed differentiation was based on the inhibition of the Transforming growth factor beta (TGF-β) signaling, specifficaly its receptor activin-like kinase 5 (ALK5). Based on the results gained, it was concluded that UC-MSC have a high ability to selfrenew and high diferentiation capacity, as well as that these cells can be differentiated into endothelial cells by inhibiting ALK5 receptor" ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175062/RS//", "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175062/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Interleukin-17", "mezenhimske matične ćelije", "endotelske ćelije", "diferencijacija", "angiogeneza", "C2C12", "EA.hy 926", "tkivo pupčanika", "hipoksija" ]
[ "Interleukin-17", "mesenchymal stem cells", "endothelial cells", "differentiation", "angiogenesis", "C2C12", "EA.hy 926", "umbilical cord", "hypoxia" ]
[ "Efekti i mehanizmi delovanja interleukina-17 na funkcije mezenhimskih i endotelskih ćelija", "Effects of interleukin-17 on mesenchymal and endothelial cell functions and mechanisms involved" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Бугарски, Диана; Кораћ, Aлександра; Сантибаñез, Јуан; Коцић, Јелена С.; Ефекти и механизми деловања интерлеукина-17 на функције мезенхимских и ендотелских ћелија; Ефекти и механизми деловања интерлеукина-17 на функције мезенхимских и ендотелских ћелија;
[ "https://nardus.mpn.gov.rs/bitstream/id/1898/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1898/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2060" ]
10.2298/bg20121001kocic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11509
123456789-11509.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20286/bdef:Content/download
no
Farmakogenomski i farmakotranskriptomski markeri odgovora na terapiju glukokortikoidnim lekovima kod dece sa akutnom limfoblastnom leukemijom: molekularni mehanizmi delovanja, klinički i populacioni aspekti
Pharmacogenomic and pharmacotranscriptomic markers in glucocorticoid treatment of pediatric acute lymphoblastic leukemia: molecular mechanism of action, clinical and population aspects
[ "Kotur, Nikola" ]
[ "Matić, Gordana", "Radović, Svetlana", "Zukić, Branka", "Dokmanović, Lidija" ]
Gašić, Vladimir
2019-11-15T10:03:58
[ "2019-11-15T10:03:58", "2020-07-03T08:07:53" ]
2019-06-28
[ "https://nardus.mpn.gov.rs/handle/123456789/11509", "http://eteze.bg.ac.rs/application/showtheses?thesesId=6926", "https://fedorabg.bg.ac.rs/fedora/get/o:20286/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025219506" ]
[ "Personalizovana medicina, medicina XXI veka, nastoji da individualizuje terapiju za svakog pacijenta, kako bi lečenje bilo što efikasnije i sa što manje rizika od toksičnosti. Personalizovana medicina se danas najviše oslanja na farmakogenomiku i farmakotranskriptomiku, koje su već dale svoj doprinos unapređenju lečenja mnogih bolesti, a posebno maligniteta. Akutna limfoblastna leukemija (ALL) predstavlja najčešći hematološki malignitet pedijatrijskog uzrasta. Mada stopa izlečenja dostiže 80-90%, ALL je i dalje glavni uzrok mortaliteta u ovih pacijenata. Terapija izaziva neželjene efekte u 75% pacijenata. Pored toga, u 1-3% pedijatrijskih pacijenata sa ALL smrtni ishod nije posledica bolesti, već je uzrokovan terapijom. Lečenje pedijatrijske ALL nije napredovalo uvođenjem novih lekova, već nastojanjem da se smanje neželjena dejstva onih lekova koji su već sastavni delovi postojećih terapijskih protokola, zbog čega su farmakogenomika i farmakotranskriptomika dobile ključno mesto u ovoj oblasti. Glukokortikoidni lekovi (GK) se koriste u početnoj fazi lečenja ALL u dece, u fazi indukcije remisije. Od početka lečenja do 8. dana se primenjuju isključivo GK. Ipak, farmakogenomske i farmakotranskriptomske studije za glukokortikoidne lekove još uvek nisu dovele do algoritma koji bi mogao biti primenjen u lečenju dečje ALL. Stoga je izuzetno značajno nastaviti sa istraživanjima farmakogenomskih i farmakotranskriptomskih markera relevantnih za uspešnost GK terapije u dece sa ALL. Razumevanje molekularnog mehanizma dejstva GK vodi ka otkrivanju novih markera koji mogu biti iskorišćeni za optimizaciju GK terapije. Nove tehnologije, kao što je sekvenciranje nove generacije (eng, next generation sequencing, NGS) su omogućile dizajniranje panela za farmakogenomske i farmakotranskriptomske markere za različite lekove..." ]
[ "Personalized medicine, the medicine of the XXI century, aims to individualize therapy for each patient, in order for the treatment to be as efficient and safe as possible. Today, personalized medicine is the most reliant on pharmacogenomics and pharmacotranscriptomics, which have already given their contribution to enhancing treatment of many diseases, especially malignancies. Acute lymphoblastic leukemia (ALL) is the most common hematological malignancy of childhood. Even though the percentage of cured patients reaches 80-90%, ALL is still the main cause of mortality in this group of patients. Therapy causes side effects in 75% of patients. Aside from that, 1-3% of pediatric ALL patients die because of therapy side effects rather than the disease itself. Treatment of pediatric ALL wasn’t improved by the introduction of new drugs, but by decreasing the side effects of the drugs which are already included in existing protocols. Due to this fact, pharmacogenomics and pharmacotranscriptomics have gained key positions in this field. Glucocorticoid drugs (GC) are used in the initial phase of childhood ALL treatment, in the phase of remission induction therapy. From the beginning of the treatment until day 8, GCs are exclusively applied. Pharmacogenomic and pharmacotranscriptomic studies for GC drugs have yet to produce an algorithm that could be applied in childhood ALL treatment. Therefore, it is of extreme importance to continue researching pharmacogenomic and pharmacotranscriptomic markers relevant to the success of the GC therapy of children with ALL. Understanding the molecular mechanism of action of GC can lead to discovery of new markers that could be used for the optimization of GC therapy. New technologies, such as next generation sequencing (NGS) have created a possibility for designing panels for pharmacogenomic and pharmacotranscriptomic markers of response to different drugs. Utilization of these panels in population pharmacogenomic studies can lead to new knowledge that could open wide the doors to predictive pharmacogenomic testing..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/EC/FP7/316088/EU//", "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41004/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "farmakogenetika", "farmakotranskriptomika", "populaciona farmakogenomika", "pedijatrijska akutna limfoblastna leukemija", "glukokortikoidni lekovi", "GAS5", "NF-κB", "sekvenciranje nove generacije" ]
[ "pharmacogenetics", "pharmacotranscriptomics", "population pharmacogenomics", "pediatric acute lymphoblastic leukemia", "glucocorticoid drugs", "GAS5", "NF-κB", "next generation sequencing" ]
[ "Farmakogenomski i farmakotranskriptomski markeri odgovora na terapiju glukokortikoidnim lekovima kod dece sa akutnom limfoblastnom leukemijom: molekularni mehanizmi delovanja, klinički i populacioni aspekti" ]
[ "Pharmacogenomic and pharmacotranscriptomic markers in glucocorticoid treatment of pediatric acute lymphoblastic leukemia: molecular mechanism of action, clinical and population aspects" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1719/IzvestajKomisije21120.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1718/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1719/IzvestajKomisije21120.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1718/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11509" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/8121
123456789-8121.pdf
yes
yes
http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija140549416002562.pdf?controlNumber=(BISIS)89538&fileName=140549416002562.pdf&id=2461&source=NaRDuS&language=sr
no
Tipološki pristup dimenzijama ideološke orijentacije
Typological approach to dimensions of ideological orientation
[ "Smederevac, Snežana" ]
[ "Biro, Mikloš", "Čolović, Petar", "Tenjović, Lazar", "Smederevac, Snežana" ]
Селимовић, Алија
2017-05-31T12:22:55
[ "2017-05-31T12:22:55", "2020-07-03T14:22:57" ]
2014-10-20
[ "https://nardus.mpn.gov.rs/handle/123456789/8121", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija140549416002562.pdf?controlNumber=(BISIS)89538&fileName=140549416002562.pdf&id=2461&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/record.jsf?recordId=89538&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije140549450872631.pdf?controlNumber=(BISIS)89538&fileName=140549450872631.pdf&id=2463&source=NaRDuS&language=sr" ]
[ "Ispitivanje prikazano u radu problematizira relacije između ličnosti posmatrane sa tipološke perspektive i ideologije obuhvaćene preko sistema vrijednosti, društvenih stavova i religioznih uvjerenja. Istraživanje je provedeno na uzorku od 1046 ispitanika (65% žena), starosti 18-74 godine (prosječna starost 32,74 godine). U ispitivanju su korišteni sljedeći instrumenti: upitnik ličnosti Velikih pet plus dva (VP+2), Švarcov upitnik vrijednosti (PVQ), Ajzenkova skala društvenih stavova, Skala religioznih uvjerenja i Skala polariteta. Klasterizacija upitnika VP+2 dovela je do kategorizacije ličnosti na: hiperkontrolisani, rezilijentni i hipokontrolisani tip. Rezultati su pokazali da se za svaki od tipova ličnosti veže specifičan vrijedonosni profil. Rezilijentni tip ličnosti se uglavnom veže za klaster vrijednosti Otvorenost za promjene (Nezavisnost, Poticaj) i Sopstveno odricanje (Univerzalnost, Dobronamjernost), dok se hipokontrolisani tip uglavnom veže za klaster vrijednosti Samounapređenja (Postignuće, Moć). Oko 40% varijabiliteta vrijednosti može se objasniti preko tipova ličnosti. Društveni stavovi Etnocentrizam i Liberalizam slabo su povezani sa tipovima ličnosti. Isto je konstatovano i za religiozna uvjerenja i normativno-humanističku orijentaciju. U osnovi, ličnost posmatrana preko tipova ili preko dimenzija, nije se pokazala kao značajan prediktor političkog ponašanja. Društveni stavovi i vrijednosti takođe su skromni prediktori političkog ponašanja, s tim da je prognoza nešto bolja u slučaju predikcije glasanja za stranke desnog centra (SDA), gdje je moguće objasniti oko 20% varijanse glasačkog ponašanja." ]
[ "This study discusses relation between personality from aspects of typological perspective and ideology determined as system of values, social attitudes and religious beliefs. The research was conducted on sample of 1046 respondents (65% female), aged from 18 to 74 years (average age 32,74 years). The instruments administrated in research were: Big Five plus Two (Velikih pet plus dva, VP+2), Schwartz Value Survey (PVQ), Eysenck’s Inventory of Social Attitudes, Religious Beliefs Scale and Polarity Scale. Clustering of Big Five plus Two (VP+2) inventory led to the categorization of personality to overcontrolled, undercontrolled and resilient type. The results showed that specific value profile is related to each type of personality. Resilient type is mostly related to the value cluster Openness to Change (Self direction and Stimulation) and Self-Transcendence (Universalism and Benevolence), while undercontrolled type is mostly related to value cluster Self-Enhancement (Power and Achievement). About 40% variance of values could be explained through personality types. Social attitudes Ethnocentrism and Liberalism are weakly associated with personality types. The same relation could be stated to religious beliefs and normative-humanistic orientation with personality types. Basically, personality operationalized through types or through dimensions either, has not showed as significant predictors of political behavior. Social attitudes and values are modest predictors of political behavior, although the prediction is somewhat better in case of prediction for right-wing parties (SDA), where is possible to explain about 20% of variance of political behavior" ]
sr (latin script)
Универзитет у Новом Саду, Филозофски факултет
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Новом Саду
[ "Tipovi ličnosti", "ideologija", "vrijednosti", "društveni stavovi", "političko ponašanje" ]
[ "Personality types", "ideology", "values", "social attitudes", "political behavior" ]
[ "Tipološki pristup dimenzijama ideološke orijentacije" ]
[ "Typological approach to dimensions of ideological orientation" ]
doctoralThesis
[ "ARR" ]
Смедеревац, Снежана; Тењовић, Лазар; Смедеревац, Снежана; Чоловић, Петар; Биро, Миклош; Selimović, Alija; Типолошки приступ димензијама идеолошке оријентације; Типолошки приступ димензијама идеолошке оријентације;
[ "https://nardus.mpn.gov.rs/bitstream/id/45908/Disertacija9336.pdf", "https://nardus.mpn.gov.rs/bitstream/id/45909/IzvestajKomisije9336.pdf", "http://nardus.mpn.gov.rs/bitstream/id/45908/Disertacija9336.pdf", "http://nardus.mpn.gov.rs/bitstream/id/45909/IzvestajKomisije9336.pdf", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija140549416002562.pdf?controlNumber=(BISIS)89538&fileName=140549416002562.pdf&id=2461&source=NaRDuS&language=sr" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_8121" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2036
123456789-2036.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2131/bdef:Content/download
no
Analiza prirode rezistencije na hinolone i molekularna tipizacija odabranih serotipova Salmonella enterica subspecies enterica
Analysis of nature of resistance to quinolones and molecular typing of selected serotypes of Salmonella enterica subspecies enterica
[ "Milošević, Vesna" ]
[ "Lozo, Jelena", "Velhner, Maja", "Golić, Nataša", "Strahinić, Ivana" ]
Kozoderović, Gordana V.
2016-01-05T11:45:30
[ "2016-01-05T11:45:30", "2020-07-03T08:08:23" ]
2012-06-14
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=10", "https://nardus.mpn.gov.rs/handle/123456789/2036", "https://fedorabg.bg.ac.rs/fedora/get/o:2131/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=" ]
[ "Salmoneloze spadaju među najznačajnije zoonoze u svetu. S obzirom da se ljudi zaražavaju najčešće putem konzumacije hrane životinjskog porekla, nadzor nad salmonelama neophodan je u svakom stadijumu proizvodnje hrane od farme do viljuške. Širenje rezistencije na hinolone među salmonelama predstavlja veliki javno zdravstveni problem zbog uticaja na lečenje ljudi i životinja. Cilj istraživanja je bio da se ispita mogućnost brze i efikasne tipizacije Salmonella enterica subspecies enterica serotip Enteritidis (S. Enteritidis) kao najčešćeg serotipa kod ljudi i učestalost i molekularni mehanizmi rezistencije na hinolone kod salmonela. U kolekciji izolata S. Enteritidis poreklom od ljudi, pilića i iz namirnica živinskog porekla, kombinacijom RAPD-PCR tipizacije sa četiri prajmera, rezistotipizacije i polimorfizma mutacija u regionu gyrA gena koji kodira rezistenciju na hinolone (QRDR), diskriminisano je 22 genetičke grupe sa indeksom diskriminacije 0.828. Svi izolati bili su visoko srodni, a tipizacija je dokazala nasumičnu raspoređenost tipova u sve tri kategorije izolata, odnosno cirkulaciju sojeva kroz razne stadijume lanca ishrane. RAPD-PCR tipizacija uspešno je izdvojila epidemijski soj među tri izolata S. Enteritidis iz jednog restorana brze hrane. Analizom uzoraka iz fabrike biskvita ustanovljena je kontaminacija sa najmanje četiri soja S. Enteritidis i povezanost serotipa Enteritidis sa jajima kao izvorom kontaminacije. Analizom većeg uzorka izolata poreklom od namirnica i ljudi sa teritorije Južnobačkog okruga u šestogodišnjem periodu ustanovljena je mala učestalost rezistencije S. Enteritidis na antibiotike, retka pojava višestruke rezistencije na antibiotike i mala učestalost rezistencije na hinolone (2.9%). Nađena su tri tipa mutacija odgovornih za rezistenciju na hinolone u QRDR regionu: Asp87Asn, Asp87Gly i Ser83Phe. Dominirale su mutacije na 87. poziciji i to Asp87Asn supstitucija. Nisu nađeni dokazi o klonalnom širenju sojeva rezistentnih na nalidiksičnu kiselinu. Rezistencija na fluorohinolone nije otkrivena. Dokazana je smanjena osetljivost na fluorohinolone kod S. Enteritidis rezistentnih na nalidiksičnu kiselinu. Kod drugih serotipova salmonela rezistencija na nalidiksičnu kiselinu i udruženost sa više markera rezistencije bila je učestalija nego kod S. Enteritidis, naročito kod S. Hadar. Rezistencija na ampicilin i nalidiksičnu kiselinu bile su najčešće kod salmonela bez obzira na serotip. Diskriminativna moć i jednostavnost RAPD-PCR metode sa četiri prajmera udružene sa rezistotipizacijom preporučuju ih kao efikasan sistem tipizacije prilikom nadzora nad kretanjem salmonela u humanoj i životinjskoj populaciji. Ispitivanje rezistencije na antibiotike, a naročito na hinolone kod salmonela neophodno je u cilju upozoravanja kliničara na terapijske rizike, a sa epidemiološkog aspekta, radi detekcije pojave i širenja opasnih sojeva." ]
[ "Salmonelloses are among most significant zoonoses in the world. Since people are most often infected by consumption of food of animal origin, surveillance of salmonella is necessary in every stage of food production from farm to fork. Emergence of resistance to quinolones among salmonella is a significant public health problem, considering implications on the treatment of humans and animals. The aims of the investigation were to analyze the possibility of fast and efficient typing of Salmonella enterica subspecies enterica serotype Enteritidis (S. Enteritidis) as the most frequent serotype in humans and to investigate frequency and molecular mechanisms determining resistance to quinolones in salmonella. In a collection of S. Enteritidis isolates originating from humans, poultry and marketed poultry products and eggs, a combination of RAPD-PCR typing with four primers, resistotyping and polymorphism of mutations in quinolone resistance determining region (QRDR) of gyrA gene revealed 22 genetic groups with discrimination index of 0.828. All isolates were closely related and typing has proved random distribution of types in all three categories of isolates, ie. circulation of strains through subsequent stages of food chain. RAPD-PCR typing succesfully discriminated epidemic strain among 3 S. Enteritidis isolates from one fast food restaurant. Analysis of samples from one biscuit factory showed contamination with at least four strains of S. Enteritidis and strong connection of serotype Enteritidis with eggs as a source of contamination. Analysis of larger collection of isolates from food and humans in Southern Bačka county in a six-year period revealed low frequency of resistance of S. Enteritidis to antibiotics, rare occurence of multiple resistance to antibiotics and low frequency of resistance to quinolones (2.9%). Three types of mutations determining resistance to quinolones in QRDR were discovered: Asp87Asn, Asp87Gly and Ser83Phe. Mutations at position 87 are dominant, with Asp87Asn as the most frequent. There was no evidence of clonal spread of strains resistant to quinolones. Resistance to fluoroquinolones was not detected. Reduced susceptibility to fluoroquinolones among S. Enteritidis resistant to nalidixic acid was proved. Resistance to nalidixic acid and association with multiple antibiotic resistance were more common among other serotypes of salmonella, especially in S. Hadar, than among S. Enteritidis. Resistance to ampicillin and nalidixic acid were the most common in all investigated salmonella serotypes. Discriminative power and simplicity of RAPD-PCR method with four primers together with resistotyping recommend them as the efficient typing system for monitoring of salmonella in human and animal population. Investigation of resistance to antibiotics, especially to quinolones among salmonella is essential for alerting clinicians for therapy risks, and from epidemiological aspect, for detection of emergence and spread of dangerous strains." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173019/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Salmonella Enteritidis", "RAPD", "rezistencija", "hinoloni", "gyrA", "QRDR" ]
[ "Salmonella Enteritidis", "RAPD", "resistance", "quinolones", "gyrA", "QRDR" ]
[ "Analiza prirode rezistencije na hinolone i molekularna tipizacija odabranih serotipova Salmonella enterica subspecies enterica", "Analysis of nature of resistance to quinolones and molecular typing of selected serotypes of Salmonella enterica subspecies enterica" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Милошевић, Весна; Голић, Наташа; Страхинић, Ивана; Лозо, Јелена; Велхнер, Маја; Козодеровић, Гордана В.; Aнализа природе резистенције на хинолоне и молекуларна типизација одабраних серотипова Салмонелла ентерица субспециес ентерица; Aнализа природе резистенције на хинолоне и молекуларна типизација одабраних серотипова Салмонелла ентерица субспециес ентерица;
[ "https://nardus.mpn.gov.rs/bitstream/id/1878/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1878/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2036" ]
10.2298/bg20120614kozoderovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/1657
123456789-1657.pdf
yes
no
https://nardus.mpn.gov.rs/bitstream/id/37808/Disertacija.pdf
no
Природне вредности као основа унапређења туристичке понуде северозападне Црне Горе
Prirodne vrednosti kao osnova unapređenja turističke ponude severozapadne Crne Gore
[ "Pavić, Dragoslav" ]
[ "Plavša, Jovan", "Pavić, Dragoslav", "Dolinaj, Dragan", "Garača, Vuk", "Milanović, Miško" ]
Srdanović, Mićo
2015-12-29T11:16:17
[ "2015-12-29T11:16:17", "2020-07-03T13:41:59" ]
2015-10-15
[ "https://nardus.mpn.gov.rs/handle/123456789/1657", "http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija144707854589318.pdf?controlNumber=(BISIS)95358&fileName=144707854589318.pdf&id=4563&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/record.jsf?recordId=95358&source=NaRDuS&language=sr", "http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije143583115827360.pdf?controlNumber=(BISIS)95358&fileName=143583115827360.pdf&id=3896&source=NaRDuS&language=sr" ]
[ "У овој дисертацији су студиозно сагледане могућности унапређења туристичке понуде северозападне Црне Горе(општине Жабљак, Пљевља, Плужине, Шавник) на бази недовољно искоришћених природних туристичких вредности. Управо разноврстан, хоризонтално и вертикално рашчлањен рељеф и веома сложен геолошки састав, специфичне климатске карактеристике, потом реке и бројна планинска језера, те богат биљни и животињски свет, представљају оне природне вредности које потенцијално чине основу унапређења туристичке понуде овог дела Црне Горе базираног и на заштићеним природним добрима(Национални парк„Дурмитор“, Регионални парк„Пива“). Посебан акценат је дат у сагледавању и оцени нивоа искоришћености природних туристичких вредности, као примарних туристичких мотива у границама истраживаног простора. Истовремено су уз процену и вредновање ових ресурса предложене поједине активности за њихово квалитетније уклапање у туристичку понуду северозападне Црне Горе. Реализација таквих активности би требала утицати на унапређење туристичке понуде које се може постићи, генерално само развојем туризма који је у сагласности са еколошким нормама, нарочито ако се имају у виду постојећа заштићена природна добра на територији подручја. Такође је у разматрању наведене проблематике презентовано актуелно стање постојеће укупне туристичке понуде истраживаног подручја која укључује или би требала укључивато поједине антропогене вредности. Оне практично нису укључене у понуду локалних туристичких агенција, с обзиром на то да су агенције готово искључиво усмерене на програме валоризације природних вредности(рафтинг, планинарење и др.). Ове вредности јесу основа унапређења туристичке понуде подручја, али су антропогене вредности њена потенцијално адекватна допуна која уз одговарајуће активности надлежних субјеката може утицати једним делом на садржајну диверзификацију туристичке понуде подручја. SWOT анализом се кроз њене саставне факторе указало на значајне претпоставке у формирању туристичке понуде истраживаног подручја, као што се указало и на прагове ограничења, али и на могућности које могу послужити за умањење или превазилажење неких од њих. За реализацију тих могућности је потребна свест локалне заједнице о томе да се резултати појединих негативних процеса на делу подручја (изразити пример НП„Дурмитор“) који су мотивисани краткорочним потребама морају са аспекта квалитета природних вредности, одразити на исте кроз дугорочне импликације. Осим овом анализом, значајна сазнања су добијена и из анкетног истраживања спроведеног на узорку од200 случајно изабраних туриста на више локација унутар подручја. Резултати овог истраживања су послужили као веома валидан индикатор предности и недостатака актуелне туристичке понуде, али и нивоа задовољства анкетираних туриста чиме је такође указано на смернице унапређења појединих сегмената туристичке понуде. Наглашеним апликативним карактером овај део истраживања пружа одговарајући информативни допринос надлежним туристичким субјектима којим се указује на анкетним истраживањем утврђен степен афирмативности места, односно подручја у целини. Истовремено, резултати поменутог истраживања пружају, између осталог, и значајне информације које се односе на остварен квалитет, као и на израженије преферирање неких сегмената туристичке понуде при чему исто може послужити делом и као полазна основа у прилагођавању појединих сегмената понуде потребама туриста. Истраживањем у оквиру израде дисертације је констатоватована присутност одређене дискоординације услед различитости у нивоима надлежности и неуједначености у погледу централизације/децентрализације управљања над појединим организационим субјектима. У вези са тим, а на основу резултата проистеклих из целокупно спроведеног истраживања кроз интердисциплинарни приступ дошло се до сагледавања потребе реализације више конкретних мера међу којима је једна од њих потреба формирања Регионалне туристичке организације што је једна од предиспозиција које су од значаја у просецу бољег позиционирања истраживаног подручја као туристичке дестинације.", "U ovoj disertaciji su studiozno sagledane mogućnosti unapređenja turističke ponude severozapadne Crne Gore(opštine Žabljak, Pljevlja, Plužine, Šavnik) na bazi nedovoljno iskorišćenih prirodnih turističkih vrednosti. Upravo raznovrstan, horizontalno i vertikalno raščlanjen reljef i veoma složen geološki sastav, specifične klimatske karakteristike, potom reke i brojna planinska jezera, te bogat biljni i životinjski svet, predstavljaju one prirodne vrednosti koje potencijalno čine osnovu unapređenja turističke ponude ovog dela Crne Gore baziranog i na zaštićenim prirodnim dobrima(Nacionalni park„Durmitor“, Regionalni park„Piva“). Poseban akcenat je dat u sagledavanju i oceni nivoa iskorišćenosti prirodnih turističkih vrednosti, kao primarnih turističkih motiva u granicama istraživanog prostora. Istovremeno su uz procenu i vrednovanje ovih resursa predložene pojedine aktivnosti za njihovo kvalitetnije uklapanje u turističku ponudu severozapadne Crne Gore. Realizacija takvih aktivnosti bi trebala uticati na unapređenje turističke ponude koje se može postići, generalno samo razvojem turizma koji je u saglasnosti sa ekološkim normama, naročito ako se imaju u vidu postojeća zaštićena prirodna dobra na teritoriji područja. Takođe je u razmatranju navedene problematike prezentovano aktuelno stanje postojeće ukupne turističke ponude istraživanog područja koja uključuje ili bi trebala uključivato pojedine antropogene vrednosti. One praktično nisu uključene u ponudu lokalnih turističkih agencija, s obzirom na to da su agencije gotovo isključivo usmerene na programe valorizacije prirodnih vrednosti(rafting, planinarenje i dr.). Ove vrednosti jesu osnova unapređenja turističke ponude područja, ali su antropogene vrednosti njena potencijalno adekvatna dopuna koja uz odgovarajuće aktivnosti nadležnih subjekata može uticati jednim delom na sadržajnu diverzifikaciju turističke ponude područja. SWOT analizom se kroz njene sastavne faktore ukazalo na značajne pretpostavke u formiranju turističke ponude istraživanog područja, kao što se ukazalo i na pragove ograničenja, ali i na mogućnosti koje mogu poslužiti za umanjenje ili prevazilaženje nekih od njih. Za realizaciju tih mogućnosti je potrebna svest lokalne zajednice o tome da se rezultati pojedinih negativnih procesa na delu područja (izraziti primer NP„Durmitor“) koji su motivisani kratkoročnim potrebama moraju sa aspekta kvaliteta prirodnih vrednosti, odraziti na iste kroz dugoročne implikacije. Osim ovom analizom, značajna saznanja su dobijena i iz anketnog istraživanja sprovedenog na uzorku od200 slučajno izabranih turista na više lokacija unutar područja. Rezultati ovog istraživanja su poslužili kao veoma validan indikator prednosti i nedostataka aktuelne turističke ponude, ali i nivoa zadovoljstva anketiranih turista čime je takođe ukazano na smernice unapređenja pojedinih segmenata turističke ponude. Naglašenim aplikativnim karakterom ovaj deo istraživanja pruža odgovarajući informativni doprinos nadležnim turističkim subjektima kojim se ukazuje na anketnim istraživanjem utvrđen stepen afirmativnosti mesta, odnosno područja u celini. Istovremeno, rezultati pomenutog istraživanja pružaju, između ostalog, i značajne informacije koje se odnose na ostvaren kvalitet, kao i na izraženije preferiranje nekih segmenata turističke ponude pri čemu isto može poslužiti delom i kao polazna osnova u prilagođavanju pojedinih segmenata ponude potrebama turista. Istraživanjem u okviru izrade disertacije je konstatovatovana prisutnost određene diskoordinacije usled različitosti u nivoima nadležnosti i neujednačenosti u pogledu centralizacije/decentralizacije upravljanja nad pojedinim organizacionim subjektima. U vezi sa tim, a na osnovu rezultata proisteklih iz celokupno sprovedenog istraživanja kroz interdisciplinarni pristup došlo se do sagledavanja potrebe realizacije više konkretnih mera među kojima je jedna od njih potreba formiranja Regionalne turističke organizacije što je jedna od predispozicija koje su od značaja u prosecu boljeg pozicioniranja istraživanog područja kao turističke destinacije." ]
[ "The dissertation deals with the advancement possibilities of tourist offer in north western part of Montenegro (municipalities of Žabljak, Pljevlja, Plužine, Šavnik) based on insufficiently utilised natural tourism values. Natural tourism values such as diverse, horizontally and vertically segmented relief, extremely complex geological formation, specific climate features, rivers and numerous mountain lakes, bio-diversity of flora and fauna form the prospective ground for tourism offer advancement in this part of Montenegro jointly with protected natural assets (National Park Durmitor and Regional Park Piva). There is special emphasis on comprehension and evaluation of utilization level of natural tourism assets, as primary tourist motives within the boundaries of the researched area. Simultaneous to estimation and evaluation of the resources, certain activities have been proposed for their qualitative integration into the tourist offer of north western part of Montenegro. Realisation of the activities should impact the tourist offer advancement that can be achieved only by means of tourism development that is in concordance with ecology principles, especially related to existing natural assets of this area. Moreover, the study of the issues describes the current condition of the total tourist offer which implies or should imply certain anthropogenic values of the researched area. In practice anthropogenic values were not included into the offer of the local travel agents. Instead, there was exclusive orientation towards the valorisation programmes of natural values (rafting, mountaineering, etc.). Natural values do create the basis for tourist offer advancement in the area, but anthropogenic values create prospective adequate complement to the tourist offer which together with appropriateactivities of the subjects in charge may in return partly impact the content diversification of the tourist offer in the area. SWOT analysis by means of its constituent factors specifies the presuppositions in tourist offer creation of the researched area, identifies restriction factors and also the possibilities that may help to alleviate or surpass some of them. Furthermore, the realisation of the possibilities demands higher awareness of the local community on the issue that the results of certain negative processes in the part of the researched area (prominent example National Park Durmitor) motivated by short-termed needs must have long-termed impact on natural values in terms of quality. Apart from this analysis, important findings have been obtained by the questionnaire conducted on the sample of 200 randomly selected tourists on several locations within the area. The results of the research serve as a valid indicator of strengths and weaknesses of the current tourist offer and the level of satisfaction of the respondents, which also indicates the directions for future improvement of certain segments within the tourist offer. This part of the research offers appropriate informative contribution to the tourism subjects by means of its highlighted applicative potential and defined level of affirmative features of the total area. At the same time the results of the research offer significant information on the achieved quality level and preferred segments of tourist offer that may partly serve as the basisfor adaptation of certain segments within the offer to tourist needs. The research conducted for doctoral thesis highlighted certain discoordination due to differences between the levels of responsibility and unevenly entralised/decentralised management of organisational subjects. Related to this and based on the results of the research based on interdisciplinary approach several measures have been highlighted, among which the need to form Regional tourist organisation as one of the predispositions for the process of better positioning of the researched area as a tourist destination." ]
sr (cyrillic script)
Универзитет у Новом Саду, Природно-математички факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "северозападна Црна Гора", "severozapadna Crna Gora", "природне вредности", "туристичка понуда", "prirodne vrednosti", "turistička ponuda" ]
[ "northwestern Montenegro", "natural values", "tourist offer" ]
[ "Природне вредности као основа унапређења туристичке понуде северозападне Црне Горе", "Prirodne vrednosti kao osnova unapređenja turističke ponude severozapadne Crne Gore", "Natural values as the basis of tourism in north western Montenegro" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Павић Драгослав; Плавша Јован; Гарача Вук; Павић Драгослав; Милановић Мишко; Долинај Драган; Срдановић Мићо; Природне вредности као основа унапређења туристичке понуде северозападне Црне Горе; Природне вредности као основа унапређења туристичке понуде северозападне Црне Горе; Prirodne vrednosti kao osnova unapređenja turističke ponude severozapadne Crne Gore;
[ "http://nardus.mpn.gov.rs/bitstream/id/37808/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37808/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/37809/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/37809/IzvestajKomisije.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_1657" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/20481
123456789-20481.pdf
yes
yes
https://fedorabg.bg.ac.rs/fedora/get/o:25798/bdef:Content/download
no
Формирање и историјски развој визуелног идентитета у служби заштите кованог и папирног новца у Србији (1868-2018)
Formation and historical development of visual identity in service of protection of coins and banknotes in Serbia (1868-2018)
[ "Borozan, Igor" ]
[ "Živković, Predrag", "Merenik, Lidija", "Gnjatović, Dragana", "Marković, Predrag" ]
Jauković, Gordana M.
2022-05-31T09:40:19
[ "2022-05-31T09:40:19" ]
2021-12-22
[ "https://eteze.bg.ac.rs/application/showtheses?thesesId=8614", "https://fedorabg.bg.ac.rs/fedora/get/o:25798/bdef:Content/download", "https://plus.cobiss.net/cobiss/sr/sr/bib/67232777", "https://nardus.mpn.gov.rs/handle/123456789/20481" ]
[ "У расправама теоретичара из различитих научних области, тема интерпретације визуелног идентитета на новцу све је присутнија. Међу економистима и стручњацима из сродних дисциплина, наглашава се међусобни однос између културе, друштава и економије – „непоправљиво испреплетених неодвојивих области“–. Поједине представе на анализираним ликовним решењима, касније и на оптицајном новцу су истовремено допринеле изградњи перцепције становништва у различитим државним трансформацијама у Србији. Помирење дуалне природе новца тежак је задатак који захтева даља питања у вези са фундаменталним значењем новца. Које су се то поруке преносиле путем папирног и кованог новца и у којим је друштвено – економским праксама он циркулисао? Пропаганда ових симбола, кроз разне жанрове илуструје и конзервативну природу „монетарне културе“, што није велико изненађење, али указује и на начине на које је иконографија папирног и кованог новца учествовала у визуелној конструкцији и јачању друштвених идентитета и сврставњу Србије у Европске и светске токове. Дискусија о формирању „монетарне културе“, а уједно и њене безбедносне улоге, начину на који се креира, прво на ликовним решењима за новчанице, затим и на издатом новцу у истраженом периоду од 1868-2018, заснива се на њиховој усклађености и једнакости. Активности по питању обликовања, израде и борбе против фалсификовања новца у Србији су биле веома интензивне и оне представљају један од предмета истраживања у овом раду. У обновљеној Кнежевини Србији, затим, Краљевини Србији у оптицају је био страни новац све до 1868. године, када се појављује први бакарни српски новац кнеза Михаила Обреновића. Сребрни новац уведен је 1875, а златни 1879. године за време Милана Обреновића. Готово све стране монете (43 врсте) фалсификовале су се одмах по пуштању у оптицај. У Кнежевини Србији, у настојању да се оствари контрола технолошког поступка израде националне монете и истовремено спречи фалсификовање новца свих врста и порекла, именовани су „испитивачи руда и фаличног новца“, хемичар Михајло Рашковић, Сима Лозанић и касније Марко Леко од 1884. до 1920. године. Од оснивања Привилеговане народне банке Краљевине Србије (1884) у оптицају је и српски новац – валута динар. Посебно се истичу периоди када је Банка била, у својим почецима и раној фази, везана за стручњаке и гравере Banque de France и Banque nationale de Belgique. Временом је Народна Банка, мудрим укључивањем српских и југословенских научника и уметника успела да оствари визуелну самосталност и изразитост визуелног идентитета, који одражава и континуитет и данас. Томе је свакако допринело укључивање највећих стручњака за ликовну уметност у Управни одбор и Комисију за сарадњу са уметницима Народне банке – Михаила Валтровића, Уроша Предића, Ђорђа Ђоке Јовановића и Паје Јовановића, Рудолфа Арчибалда Рајса, Младена Јосића, Васе Поморишца и других, који су путем позива или конкурса укључили плејаду уметника и научника у рад за ликовна решења, а затим за оптицајни новац. У процесу развоја токова визуелног идентитета на новцу може се издвојити шест периода: крај XIX века и почетак XX века, период између два рата, период после Другог светског рата, период Социјалистичке изградње, Распад II Југославије и период од 2003. до 2018. године. У процесу развоја токова у оквиру визуелног идентитета, прати се хронолошки след догађаја у оквиру надлежности и функција Народне банке. Анализирана идејна решења за новчанице потичу из збирке Народне Банке Србије, односно из Завода за израду новчаница и кованог новца у Топчидеру. У овом раду се сагледавају уметничко-технолошки аспекти и токови развоја визуелног идентитета у служби заштите новца од фалсификовања. viii Поред тога, развој науке и технологије омогућавао је примену савременијих поступака производње и унапређење система заштите новца, а истовремено и веће техничко-технолошке могућности за израду фалсификата. У другом делу овог рада представљен је потенцијал примене Оптичке микроскопије и Раманове спектроскопије као недеструктивних форензичких метода у анализи историјских и оптицајних новчаница. Циљ истраживања јесте доказати да су Оптичка микроскопија и Раманова спектроскопија успешно примењиве у анализи новчаница. Утврђене су сигурносне технике штампе и сигурносни елементи у оквиру уобличавања визуелног идентитета, односно монетарне културе. Експериментални део рада извршен је на историјским новчаницама које су издате у периоду од 1893. до 2018. године." ]
[ "In discussions of theoreticians from various scientific fields, the issue of interpretation of visual identity on money is increasingly present. Economists and experts from similar disciplines are underlining the mutual relation between culture, societies and economy – “irreparably intertwined areas”–. Some illustrations on analysed design solutions, and later on circulating money, also helped build the perception of residents in various state transformations in Serbia. To reconcile the dual nature of money is a difficult task that requires further questions into the fundamental meaning of money. What are the messages that were conveyed by way of paper banknotes and coins, and in which socio-economic practices did such money circulate? The propaganda of these symbols through various genres also illustrates a conservative nature of the “monetary culture”, which is no big surprise, but it does indicate the ways in which the iconography of banknotes and coins participated in the visual construction and strengthening of social identities, and helped make Serbia part of European and global trends. The discussion about the formation of a “monetary culture”, and at the same time its security role, the manner of creation, first in artistic design solutions for banknotes and then on issued money in the researched period 1868–2018, is based on their harmonisation and equivalency. Activities in terms of shaping, producing and fighting against counterfeit money in Serbia were very intensive and are one of the topics of research in this paper. In the renewed Principality of Serbia, and later the Kingdom of Serbia, foreign money was in circulation until 1868, when the first copper Serbian money of Prince Mihailo Obrenović appeared. Silver money was introduced in 1875, and gold in 1879, during Milan Obrenović. Counterfeits of almost all foreign legal tenders (43 kinds) appeared immediately after money was released into circulation. In the Principality of Serbia, in an effort to establish control of the technological process of manufacturing a national legal tender and simultaneously prevent counterfeits of money of all kinds and origins, “examiners of ores and flawed money” were appointed – chemist Mihajlo Rašković, Sima Lozanić and later Marko Leko, from 1884 until 1920. Since the establishment of the Privileged National Bank of the Kingdom of Serbia (1884), Serbian money has also been in circulation – the dinar. Of particular significance are periods when in its beginnings and the early stage, the Bank had close ties with experts and engravers from Banque de France and Banque nationale de Belgique. Over time, by wisely involving Serbian and Yugoslav scientists and artists, the National Bank managed to achieve visual independence and a particular visual identity, which has been maintained in continuity to date. This was certainly facilitated by the involvement of major arts experts in the National Bank’s Governing Board and the Committee for Cooperation with Artists – Mihailo Valtrović, Uroš Predić, Đorđe Đoka Jovanović and Paja Jovanović, Rodolphe Archibald Reiss, Mladen Josić, Vasa Pomorišac and others. By invitation or a competition, these artists joined a plethora of other artists and scientists engaged in coming up with design solutions, and then in circulating money. The process to develop the trends of visual identity on money can be classified into six periods: the end of the 19th century and the beginning of the 20th century, the period between the two world wars, the period after World War II, the period of the Socialist construction, the Dissolution of Yugoslavia, and the period from 2003 until 2018. In the process to develop trends within visual identity, we monitor the chronological sequence of events under the competences and functions of the National Bank. The analysed design solutions for banknotes come from the collection of the National Bank of Serbia, i.e. the Institute for Manufacturing Banknotes and Coins in Topčider. This paper looks into the artistic-technological aspects and trends of developing a visual identity in the service of protecting money from counterfeiting. x In addition, the development of science and technology enabled the implementation of more modern manufacturing procedures and the improvement of the money protection system, while at the same time it made room for greater technical-technological possibilities for counterfeiting. In the second part of the paper, the authors present the potential for implementing optical microscopy and Raman spectroscopy as non-destructive forensic methods for analysing historical and circulating banknotes. The aim of the research was to prove that optical microscopy and Raman spectroscopy have been successfully applied in banknote analysis. Security printing techniques were defined, as well as security elements within the shaping of visual identity, i.e. monetary culture. The experimental part of the paper was conducted on historical banknotes issued between 1893 and 2018." ]
application/pdf
sr
Универзитет у Београду, Студије при универзитету
[ "" ]
[ "openAccess" ]
[ "" ]
Универзитет у Београду
[ "новац", "Народна Банка", "сигурносне технике штампе", "заштитни елементи", "пигменти", "Раманова спектроскопија", "форензика", "визуелни идентитет на новцу" ]
[ "money", "National Bank", "security printing techniques", "security features", "pigments", "security inks", "Raman spectroscopy", "forensic", "visual identity on money" ]
[ "Формирање и историјски развој визуелног идентитета у служби заштите кованог и папирног новца у Србији (1868-2018)" ]
[ "Formation and historical development of visual identity in service of protection of coins and banknotes in Serbia (1868-2018)" ]
doctoralThesis
[ "ARR" ]
Борозан, Игор; Марковић, Предраг; Гњатовић, Драгана; Живковић, Предраг; Мереник, Лидија; Јауковић, Гордана М.; Formiranje i istorijski razvoj vizuelnog identiteta u službi zaštite kovanog i papirnog novca u Srbiji (1868-2018);
[ "http://nardus.mpn.gov.rs/bitstream/id/144737/Izvestaj_Komisije_12304.pdf", "http://nardus.mpn.gov.rs/bitstream/id/144736/Disertacija_12304.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:25798/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_20481" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2061
123456789-2061.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3038/bdef:Content/download
no
Uticaj hroničnog intenzivnog treninga na parametre oksidativnog stresa i masnokiselinski profil plazme i eritrocita kod sportistkinja
The effect of chronic intensive training on oxidativ stress parameters and fatty acid profiles of plasma and erythrocytes in female athletes
[ "Korać, Bato" ]
[ "Korać, Bato", "Vučić, Vesna", "Vučić, Vesna", "Glibetić, Marija" ]
Arsić, Aleksandra Č.
2016-01-05T11:46:17
[ "2016-01-05T11:46:17", "2020-07-03T08:08:34" ]
2012-10-10
[ "https://nardus.mpn.gov.rs/handle/123456789/2061", "http://eteze.bg.ac.rs/application/showtheses?thesesId=50", "https://fedorabg.bg.ac.rs/fedora/get/o:3038/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024528818" ]
[ "Intenzivna fizička aktivnost utiče na metabolizam lipida i masnih kiselina (MK), dovodi do povećane potrošnje kiseonika u mišićima i drugim tkivima što vodi povećanoj produkciji reaktivnih kiseoničnih vrsta i može uticati na funkciju imunog sistema. Uticaj hroničnog intenzivnog vežbanja na parametre oksidativnog stresa i masnokiselinski profil fosfolipida kod aktivnih sportistkinja nije dovoljno ispitivan. Zbog toga je ova studija imala za cilj da ispita MK profil fosfolipida plazme i eritrocita, parametre oksidativnog stresa, aktivnost enzima antioksidativne zaštite, kao i aktivnost monocita kao dela imunog sistema, kod dve grupe aktivnih sportistkinja: vaterpolistkinja (n=15) i fudbalerki (n=19). Kontrolnu grupu (n=14) su činile zdrave devojke istih godina starosti koje se ne bave fizičkom aktivnošću. Uprkos sličnom dijetarnom unosu, MK profil plazme pokazao je znatno veći udeo stearinske, oleinske i mononezasićenih masnih kiselina (MUFA) i značajno niži procenat ukupnih i n-6 polinezasićenih MK (PUFA) kod fudbalerki u odnosu na vaterpolo i kontrolnu grupu. Sa druge strane vaterpolistkinje su imale višu procentualnu zastupljenost palmitoleinske i arahidonske kiseline u odnosu na kontrolnu grupu. MK profil eritrocita pokazao je značajno veći procenat oleinske kiseline i MUFA kod fudbalerki u odnosu na kontrolnu grupu, i smanjeni procenat stearinske kiseline uz viši udeo palmitinske i palmitoleinske kiseline kod vaterpolistkinja u odnosu na druge dve grupe. Obe grupe sportistkinja su imale značajno niži procenat n-6 PUFA i ukupnih PUFA u poređenju sa kontrolnom grupom. Procenjena aktivnost desaturaza i elongaza u eritrocitima takođe je promenjena kod sportistkinja. Analiza parametara oksidativnog stresa pokazala je značajno veći ukupni antioksidativni status u plazmi i veći stepen lipidne peroksidacije u eritrocitima kod sportistkinja u odnosu na kontrolnu grupu. Koncentracija H2O2 u plazmi bila je veća kod sportistkinja u odnosu na neaktivne žene, ali su fudbalerke imale viši nivo H2O2 i u odnosu na vaterpolistkinje. Sa druge strane, koncentracija O2 .- bila je najniža kod vaterpolistkinja a najviša kod fudbalerki, značajno viša i u odnosu na kontrolnu grupu. Koncentracija NO2 - u plazmi bila je značajno viša kod fudbalerki u odnosu na kontrolnu grupu. Aktivnost enzima antioksidativne zaštite u eritrocitima razlikovala se između sportistkinja i kontrolne grupe. Tako je aktivnost katalaze kod sportistkinja bila značajno viša u odnosu na kontrolnu grupu, dok se aktivnost glutationperoksidaze nije razlikovala između ispitivanih grupa. Aktivnost superoksid-dismutaze bila je najviša kod vaterpolistkinja, i nije se značajno razlikovala između fudbalerki i kontrolne grupe. Analiza metaboličke aktivnosti mononuklearnih ćelija periferne krvi pokazala je veću aktivnost mononuklearnih ćelija kod sportistkinja, dok se produkcija O2 .- i NO2- u mononuklearnim ćelijama nije razlikovala između ispitivanih grupa. Naši rezultati su pokazali da dugotrajna intenzivna fizička aktivnost značajno utiče namasnokiselinski profil fosfolipida plazme i eritrocita, parametre oksidativnog stresa, aktivnost enzima antioksidativne zaštite, menja aktivnost mononuklearnih ćelija periferne krvi ali ne utiče na produkciju O2 .- i NO2 - u mononuklearnim ćelijama. Zapažene razlike između grupa vaterpolistkinja i fudbalerki ukazuju da tip sporta igra značajnu ulogu u promenama u metablizmu kod sportistkinja." ]
[ "Intensive physical activity affects metabolism of lipids and fatty acids (FA), increases consumption of oxygen in muscles and other tissues that leads to increased production of reactive oxygen species and can affect immune system. The effect of chronic intensive exercise on parameters of oxidative stress and phospholipids FA composition in elite female athletes has not been studied extensively so far. Thus the aim of this study was to investigate FA profiles in plasma and erythrocytes phospholipids, parameters of oxidative stress, activity of antioxidative enzyme system and activity of monocytes as a part of immune system in two groups of active female athletes: water polo (n=15) and football (n=19) players. The control group was composed of 14 apparently healthy age-matched sedentary women. In spite of similar dietary patterns, plasma FA profile in the football players showed significantly higher proportion of stearic acid, oleic acid and monounsaturated FA (MUFA), and significantly lower proportion of total and n-6 polyunsaturated FA (PUFA) than the water polo and control group. The water polo players had higher percentages of palmitoleic acid and arachidonic acid than the control subjects. Erythrocyte FA profile differed among groups. We found significantly higher proportion of oleic acid and MUFA in the football group than in the controls, and decreased stearic acid and elevated palmitic and palmitoleic acid in the water polo players than in the other two groups. Both groups of athletes had significantly lower percentages of n-6 PUFA and total PUFA compared to the controls. The estimated activities of elongase and desaturases in erythrocytes were also altered in the athletes. Analysis of oxidative stress parameters showed significantly higher plasma total antioxidant status and higher lipid peroxidation in erythrocytes of the athletes than in the controls. Concentration of H2O2 in plasma was higher in the athletes compared with sedentary women, but also higher in football than in the water polo players. On the other hand, level of O2 .- was the lowest in water polo players and the highest in the football group. Concentrations of both O2 .- and NO2 - were significantly higher in the football than in the control group. Catalase activity was significantly higher in the athletes that in sedentary women, while glutation peroxidase activity was similar in all groups. Superoxide-dismutase activity was higher in the water polo group than in the other two groups. Furthermore, metabolic activity of peripheral blood mononuclear cells was higher in the athletes, and production of O2 .- i NO2 - in mononuclear cells did not differ among the studied groups. Our results have shown that long-term, intense physical training significantly affected FA status of plasma and erythrocyte phospholipids, oxidative stress and antioxidant enzyme activity in women. It also changes metabolic activity of mononuclear cells but not the production of O2 .- i NO2 - in mononuclear cells. The observed differences between the water polo and the football players suggest that the type of regular training may contribute to the altered metabolism in athletes. Key words: phospholipids, fatty acids, physical activity, water polo, football, female athletes" ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41030/RS//", "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41030/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Fosfolipidi", "masne kiseline", "fizička aktivnost", "vaterpolo", "fudbal", "sportistkinje", "slobodni radikali", "enzimi antioksidativne zaštite", "mononuklearne ćelije" ]
[ "Phospholipids", "fatty acids", "physical activity", "water polo", "football", "female athletes", "free radicals", "antioxidant enzymes", "mononuclear cells" ]
[ "Uticaj hroničnog intenzivnog treninga na parametre oksidativnog stresa i masnokiselinski profil plazme i eritrocita kod sportistkinja", "The effect of chronic intensive training on oxidativ stress parameters and fatty acid profiles of plasma and erythrocytes in female athletes" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Кораћ, Бато; Вучић, Весна; Кораћ, Бато; Вучић, Весна; Глибетић, Марија; Aрсић, Aлександра Ч.; Утицај хроничног интензивног тренинга на параметре оксидативног стреса и маснокиселински профил плазме и еритроцита код спортисткиња; Утицај хроничног интензивног тренинга на параметре оксидативног стреса и маснокиселински профил плазме и еритроцита код спортисткиња;
[ "https://nardus.mpn.gov.rs/bitstream/id/1909/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1909/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2061" ]
10.2298/bg20121010arsic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/7988
123456789-7988.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:15331/bdef:Content/download
no
Улога инактивисане вакцине против грипа у регулацији аутоимунских процеса у експерименталном аутоимунском енцефаломијелитису
Role of inactivated influenza vaccine in regulation of autoimmune processes in experimental autoimmune encephalomyelitis
[ "Marković, Dragana" ]
[ "Vujović, Predrag", "Marković, Dragana", "Vujović, Predrag", "Ilić, Vesna" ]
Maslovarić, Irina S.
2017-04-29T21:48:41
[ "2017-04-29T21:48:41", "2020-07-03T08:07:33" ]
2016-12-30
[ "https://nardus.mpn.gov.rs/handle/123456789/7988", "http://eteze.bg.ac.rs/application/showtheses?thesesId=4893", "https://fedorabg.bg.ac.rs/fedora/get/o:15331/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48841999" ]
[ "Инфлуенца је инфективна респираторна болест узрокована вирусима инфлуенце. Иако је сама инфекција вирусом инфлуенце ретко била повезивана са различитим орган-специфичним и системским аутоимунским болестима, неуролошке аутоимунске манифестације после примене инфлуенца вакцине су биле документоване током времена. Мултипла склероза (МС) је хронична, у основи аутоимунска неуролошка болест која се најчешће доводи у везу са вакцинацијом. Експериментални аутоимунски енцефаломијелитис (EAE) је најинтензивније изучаван мишји модел МС, а мијелин олигодендроцитним гликопротеином (MOG) индукован EAE је много сличнији МС код људи него друге варијанте ЕАЕ. С обзиром да је расправа о добробити вакцинације болесника са MС још увек отворена циљ наше студије је био давање доприноса у расветљавању улоге вакцине против грипа и њеног ефекта на регулацију ЕАЕ кроз праћење клиничких знакова, титра серумских антитела ELISA тестом, експресије молекула главног хистокомпатибилног комплекса (MHC) I и II класе на пресецима можданог ткива имунохистохемијским методама и ефекат на когнитивне функције (просторно учење и памћење одређивано Морисовим тестом воденог лавиринта; MWM). C57BL/6 мишеви су прво вакцинисани split virion инактивисаном инфлуенца вакцином и три дана касније је индукован ЕАЕ са MOG35-55 пептидом. Укупно добијени резултати представљени у овој дисертацији указују да инфлуенца вакцина није утицала на продукцију анти- MOG антитела и на развој клиничких знакова ЕАЕ. И поред тога што је поремећај на нивоу (ауто)имунског одговора код МС болесника евидентан, имунски одговор на већину уобичајених вирусних и бактеријских инфекција изгледа да је очуван. Резултати ове студије су показали да је титар анти- инфлуенца антитела код здравих вакцинисаних мишева и код оних код којих је након вакцинације индукован ЕАЕ, четири недеље након вакцинације, био идентичан, што указује на очуваност хуморалног имунског одговора и код мишева код којих је индукован ЕАЕ..." ]
[ "Influenza is a contagious respiratory illness caused by influenza viruses. Influenza infection per se has seldom been associated with various organ-specific and systemic autoimmune diseases but neurological autoimmune phenomena have been reported following influenza vaccine. Multiple sclerosis (MS) is the most common chronic neurological disease of an autoimmune nature that has been viewed in conjunction with vaccination. Experimental autoimmune encephalomyelitis (EAE) is the most extensively studied mouse model of MS and myelin oligodendrocyte glycoprotein (MOG) induced EAE more closely resembles MS than other EAE variants. Since the debate about vaccine safety in patients with MS is still wide open, the objective of our study was to shed more light on and supply additional information about the influenza vaccination effects on regulation of EAE through monitoring of clinical signs, serum antibody titers by using ELISA, expression of MHC (Major Histocompatibility Complex) class I and II molecules in brain tissue by immunohistochemical detection, and its effect on cognitive functions (spatial learning and memory measured by Morris Water Maze test). C57BL/6 mice were first vaccinated with influenza split virion inactivated vaccine and three days later EAE was induced with MOG35-55 peptide. The overall data presented in this study indicate that influenza vaccine had no effect on the production of anti-MOG autoantibodies and the development of clinical signs. Although the unbalanced immune system is evident in patients with MS, immune defense against common viral and bacterial infections appears to be preserved. In this study anti-influenza antibody titers in healthy vaccinated mice and in MOG induced EAE-vaccinated mice, four weeks after vaccination with influenza vaccine have indicated preserved long-lasting antibody response in MOG induced EAE mice. High expression of MHC II and mild-to-low expression of MHC I was detected in mice with EAE..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Вакцина против грипа", "Pertussis вакцина", "Мијелин олигодендроцитни гликопротеин", "Експериментални аутоимунски енцефаломијелитис", "Хороидни плексус", "Хипокампус", "MHC молекули I и II класе", "CD4 молекул", "Просторно учење", "Морисов тест воденог лавиринта" ]
[ "Influenza vaccine", "Choroid plexus", "CD4 molecules", "Hyppocampus", "MHC molecules class I and II", "Pertussis vaccine", "Myelin oligodendrocyte glycoprotein", "Experimental autoimmune encephalomyelitis", "Spatial learning – Morris water maze test" ]
[ "Улога инактивисане вакцине против грипа у регулацији аутоимунских процеса у експерименталном аутоимунском енцефаломијелитису" ]
[ "Role of inactivated influenza vaccine in regulation of autoimmune processes in experimental autoimmune encephalomyelitis" ]
doctoralThesis
[ "BY-NC-ND" ]
Марковић, Драгана; Вујовић, Предраг; Илић, Весна; Вујовић, Предраг; Марковић, Драгана; Масловарић, Ирина С.; Uloga inaktivisane vakcine protiv gripa u regulaciji autoimunskih procesa u eksperimentalnom autoimunskom encefalomijelitisu;
[ "https://nardus.mpn.gov.rs/bitstream/id/1631/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1632/IzvestajKomisije8387.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1631/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1632/IzvestajKomisije8387.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_7988" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/8303
123456789-8303.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:15785/bdef:Content/download
no
Karakterizacija i putevi sinhronizacije perifernog biološkog časovnika i steroidogeneze u Lajdigovim ćelijama pacova
Characterization and pathways of synhronization of peripheral biological clock and steroidogenesis in rat Leydig cells
[ "Kostić, Tatjana" ]
[ "Kostić, Tatjana", "Matić, Gordana", "Matić, Gordana", "Andrić, Silvana" ]
Baburski, Aleksandar Z.
2017-06-17T08:53:24
[ "2017-06-17T08:53:24", "2020-07-03T08:08:18" ]
2017-04-28
[ "https://nardus.mpn.gov.rs/handle/123456789/8303", "http://eteze.bg.ac.rs/application/showtheses?thesesId=5055", "https://fedorabg.bg.ac.rs/fedora/get/o:15785/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025154738" ]
[ "Biološki časovnik organizuje metabolizam i fiziološke procese u cirkadijalne ritmove. Na nivou ćelije, on se sastoji od grupe gena koji preko negativnih povratnih sprega održavaju ritam sopstvene transkripcije, ali regulišu i ritmičnost transkripcije mnogih drugih gena. Iako je poznato da su određeni geni časovnika neophodni za sintezu testosterona i fertilnost mužjaka, još uvek nema preciznih podataka o cirkadijalnoj fiziologiji testosteron produkujućih Lajdigovih ćelija. Ova studija je dizajnirana da definiše (1) cirkadijalni obrazac endokrine funkcije Lajdigovih ćelija uključujući i eksprimiranje gena perifernog časovnika i (2) upletenost LH-cAMP signalizacije u sinhronizaciju ritma Lajdigovih ćelija korišćenjem in vivo modela poremećene cAMP homeostaze (hipogonadotropni hipogonadizam, starački hipogonadizam, pinealektomija) i in vitro stimulacije Lajdigovih ćellija. Rezultati su pokazali cirkadijaln ritam funkcije Lajdigovih ćelija koji se ogleda u vremenski koordinisanoj oscilatornoj produkciji testosterona i intracelularnog cAMP, cirkadijalnom eksprimiranju regulatora (Nur77 i Arr19), steroidogenih elementa (Star/StAR, Cyp11a1 i Cyp17a1), kao i elementa časovnika (Bmal1/BMAL1, Per1/2/3, Cry1/2, Rev-erba/b/REV-ERBA, Rorb, Dec1/2, Dbp i E4bp4). Ritam transkripcije osnovnih gena časovnika kao i ključnog elementa steroidogeneze (Star) se održava i u primarnoj kulturi ovih ćelija. Redukcija cAMP detektovana u Lajdigovim ćelijama pacova sa hipogonadotropnim hipogonadizmom stimuliše transkripciju većeg broja gena časovnika: Per2, Rorb, Rev-erbb, Dec1/2, E4bp4, Ck1e/d, i inhibiše Npas2. Sa druge strane, in vitro stimulacija cAMP-signalizacije povećava transkripciju Per1, Dec1/2, Rorb, Npas2 i E4bp4, i smanjuje transkripciju Rev-erba. Starenje, dovodi do opadanja robusnosti cirkadijalne funkcije Lajdigovih ćelija koja se ogleda u smanjenju oscilacija intracelularnog cAMP, smanjenja amplitude eksprimiranja najvažnijih gena časovnika (Bmal1/BMAL1, Per1/2, Rev-erba/REV-ERBA), gena uključenih u metabolizam holesterola (Lipe, Soat2, Scarb1) i steroidogenih gena, (Star/StAR, Cyp11a1, Cyp17a1, Hsd3b1/2/HSD3B, Hsd17b4)..." ]
[ "Biological clock organizes metabolic and physiological processes in circadian rhythms. At cell level, it consists of group of genes that regulate its own transcription by negative feedback loop, also regulating transcription rhythmicity of other genes. Although, it is known that some clock genes are necessary for testosterone synthesis and male fertility, there is no precise data about circadian physiology of testosterone-producing Leydig cells. This thesis was design to define (1) circadian pattern of endocrine function of Leydig cells, including expression of clock genes, and (2) involvement of LH-cAMP signaling in synchronization of Leydig cells rhythm using in vivo model of disturbed cAMP homeostasis (hypogonadotropic hypogonadism, hypogonadism in aging, pinealectomy) and in vitro Leydig cell stimulation. Results confirmed circadian rhythmicity of Leydig cell function represented by temporal coordination of cyclic testosterone production and intracellular cAMP, circadian expression of regulators (Nur77, Arr19), steroidogenic (Star/StAR, Cyp11a1 i Cyp17a1) and clock elements (Bmal1/BMAL1, Per1/2/3, Cry1/2, Rev-erba/b/REV-ERBA, Rorb, Dec1/2, Dbp, E4bp4). Rhythm in transcription of core clock genes as well as key steroidogenic element (Star) was preserved in primary Leydig cell culture. Reduction in cAMP, detected in Leydig cells from hypogonadotropic hypogonadal rats, stimulated transcription of some clock genes: Per2, Rorb, Rev-erbb, Dec1/2, E4bp4, Ck1e/d, but inhibited Npas2. On the other hand, in vitro stimulation of cAMP signaling increased transcription of Per1, Dec1/2, Rorb, Npas2 and E4bp4, and reduced transcription of Rev-erba. Aging dulled robustness of circadian function of Leydig cells, represented by decline in intracellular cAMP oscillations and amplitude of expression of core clock genes (Bmal1/BMAL1, Per1/2, Rev-erba/REV-ERBA), genes involved in cholesterol metabolism (Lipe, Soat2, Scarb1) and steroidogenic genes (Star/StAR, Cyp11a1, Cyp17a1, Hsd3b1/2/HSD3B, Hsd17b4). Abolishment of melatonin, a main cue that spread information of light regime via cAMP signaling, stimulated expression of clock (Bmal1/BMAL1, Per1/2) and steroidogenic (Star/StAR, Hsd3b/HSD3B) elements..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173057/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "Lajdigove ćelije", "cirkadijalni časovnik", "steroidogeneza", "testosteron", "cAMP", "cGMP", "starenje", "hipogonadizam", "melatonin", "pacov" ]
[ "Leydig cells", "circadian clock", "steroidogenesis", "testosterone", "cAMP", "cGMP", "aging", "hypogonadism", "melatonin", "rat" ]
[ "Karakterizacija i putevi sinhronizacije perifernog biološkog časovnika i steroidogeneze u Lajdigovim ćelijama pacova" ]
[ "Characterization and pathways of synhronization of peripheral biological clock and steroidogenesis in rat Leydig cells" ]
doctoralThesis
[ "BY-NC-SA" ]
Костић, Татјана; Костић, Татјана; Aндрић, Силвана; Матић, Гордана; Матић, Гордана; Бабурски, Aлександар З.; Карактеризација и путеви синхронизације периферног биолошког часовника и стероидогенезе у Лајдиговим ћелијама пацова; Карактеризација и путеви синхронизације периферног биолошког часовника и стероидогенезе у Лајдиговим ћелијама пацова;
[ "https://nardus.mpn.gov.rs/bitstream/id/1856/IzvestajKomisije10978.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1855/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1855/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1856/IzvestajKomisije10978.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_8303" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11828
123456789-11828.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20881/bdef:Content/download
no
Funkcionalna analiza interakcija TET-posredovane oksidacije 5-metilcitozina i PARP-zavisne ADP-ribozilacije u procesu demetilacije DNK
Functional analysis of interactions between TET-mediated oxidation 5-methylcytosine and PARP-dependent ADP-ribosylation in the process of DNA demethylation
[ "Uskoković, Aleksandra" ]
[ "Vidaković, Melita", "Savić-Pavićević, Dušanka", "Uskoković, Aleksandra", "Vidaković, Melita" ]
Tolić, Anja Z.
2020-02-07T10:29:24
[ "2020-02-07T10:29:24", "2020-07-03T08:08:06" ]
2019-09-25
[ "https://nardus.mpn.gov.rs/handle/123456789/11828", "http://eteze.bg.ac.rs/application/showtheses?thesesId=7183", "https://fedorabg.bg.ac.rs/fedora/get/o:20881/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51818255" ]
[ "Važan aspekt u rasvetljavanju procesa demetilacije DNK predstavlja identifikacija faktora koji regulušu aktivnost TET proteina. Cilj ove doktorske disertacije bio je da se ispita funkcionalna veza između TET-posredovane oksidacije 5mC i PARP-zavisne PARilacije u procesu demetilacije DNK, na globalnom i lokalnom nivou. Rezultati ovog istraživanja ukazuju da PARP-1 interaguje sa TET1 i TET2. Pokazano je i da oba proteina podležu in vitro PARilaciji. PARP-1-zavisna PARilacija TET1 proteina negativno utiče na kinetiku aktivnosti TET1 in vitro. Rezultati in cellulo eksperimenata pokazali su da u odsustvu PARP-1 dolazi do porasta ekspresije Tet1 i Tet2, a da prilikom inhibicije PARilacije i u odsustvu PARP-1 dolazi do pada globalnog nivoa metilacije i porasta hidroksimetilacije DNK. Za analizu lokalnih efekata TET-PARP interakcije izabran je gen za hemokin CXCL12 koji učestvuje u brojnim fiziološkim i patološkim procesima pa je ispitivanje regulacije njegove ekspresije važno za buduće terapijske pristupe. Pokazano je da u odsustvu PARP-1 dolazi do povećane ekspresije kao i do pada u metilaciji Cxcl12. Nakon tretmana aktivatorom/inhibitorom TET aktivnosti, u odsustvu PARP-1, ekpresija Cxcl12 je povećana/smanjena. Prisustvo TET1 i TET2 detektovano je na promotoru Cxcl12 uz povećano regrutovanje TET2 u odsustvu PARP-1. U ovoj disertaciji pokazan je inhibitorni uticaj PARP-1 i PARilacije na aktivnost TET enzima u procesu demetilacije DNK na globalnom nivou, a funkcionalnost lokalnih efekata povezanosti TET i PARP enzima u procesu (de)metilacije ustanovljena je na primeru Cxcl12. Demetilacija DNK nalazi se u osnovi brojnih fizioloških i patoloških stanja, zato rasvetljavanje mehanizama regulacije ovog procesa predstavlja važan korak u potencijalnoj primeni stečenih saznanja u medicini." ]
[ "elucidating the process of DNA demethylation. The aim of this doctoral dissertation was to investigate the functional relationship between TET-mediated oxidation of 5mC and PARP-dependent PARylation in the process of DNA demethylation at both global and local levels. This thesis shows that PARP-1 interacts with TET1 and TET2, and that both TET proteins can undergo in vitro PARylation. PARP-1-dependent PARylation of TET1 negatively affected the kinetics of TET1 activity in vitro. The results of in cellulo experiments revealed that the expression of Tet1 and Tet2 increased in the absence of PARP-1, whereas when PARylation was inhibited or in the absence of PARP-1, there was a decrease in the global level of DNA methylation and an increase in DNA hydroxymethylation. The Cxcl12 gene was selected for the analysis of the local effects of TET-PARP interaction since chemokine CXCL12 participates in numerous physiological and pathological processes, and exploring the regulation of expression of this gene is important for potential clinical intervention. Increased expression and decreased methylation of Cxcl12 were observed in the absence of PARP-1. After treatment with an activator or inhibitor of TET activity in the absence of PARP-1, Cxcl12 expression was respectively increased or decreased. The presence of TET1 and TET2 was detected on the Cxcl12 promoter, with enhanced recruitment of TET2 in the absence of PARP-1. This dissertation describes the inhibitory effects of PARP-1 and PARylation on the activity of TET enzymes in the process of DNA demethylation at the global level, and the local effects of TET-PARP interplay on DNA (de)methylation of Cxcl12 gene. DNA demethylation is at the root of numerous physiological and pathological conditions, and elucidating the mechanisms that regulate this process is an important step in the potential application of acquired knowledge in medicine." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173020/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "TET1", "TET2", "PARP-1", "PAR polimeri", "PARilacija", "metilacija DNK", "demetilacija DNK", "Cxcl12 gen" ]
[ "TET1", "TET2", "PARP-1", "PAR polymers", "PARylation", "DNA methylation", "DNA demethylation", "Cxcl12 gene" ]
[ "Funkcionalna analiza interakcija TET-posredovane oksidacije 5-metilcitozina i PARP-zavisne ADP-ribozilacije u procesu demetilacije DNK" ]
[ "Functional analysis of interactions between TET-mediated oxidation 5-methylcytosine and PARP-dependent ADP-ribosylation in the process of DNA demethylation" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1800/IzvestajKomisije21854.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1799/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1800/IzvestajKomisije21854.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1799/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11828" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11740
123456789-11740.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20712/bdef:Content/download
no
Analiza uloge gena SOX1 i SOX3 u promovisanju malignog fenotipa ćelija glioblastoma
Analysis of the role of SOX1 and SOX3 genes in promotion of malignant phenotype of glioblastoma cells
[ "Drakulić, Danijela" ]
[ "Stevanović, Milena", "Brajušković, Goran", "Drakulić, Danijela", "Stevanović, Milena" ]
Marjanović, Jelena
2020-01-27T12:20:32
[ "2020-01-27T12:20:32", "2020-07-03T08:07:57" ]
2019-06-28
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=7077", "https://nardus.mpn.gov.rs/handle/123456789/11740", "https://fedorabg.bg.ac.rs/fedora/get/o:20712/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025220274" ]
[ "Glioblastom, glioma tumor gradusa IV, je najčešći maligni tumor mozga kod odraslih i jedan od najsmrtonosnijih tipova tumora. I pored agresivne terapije koja obuhvata hirurško uklanjanje tumora, radio- i hemio-terapiju, prosečno preživljavanje bolesnika sa ovim tipom tumora je oko 15 meseci. Glioblastom (GBM), pored tumorskih ćelija, sadrži i populaciju samo-obnavljajućih tumor-inicirajućih matičnih ćelija (matične ćelije glioblastoma) koje se smatraju odgovornim za nastanak, progresiju, metastaziranje i rezistenciju na terapiju. Geni SOXB1 podgrupe (SOX1, SOX2 i SOX3) kodiraju regulatorne proteine koji imaju značajne uloge u mnogim procesima u toku razvića, kao što su održavanje pluripotentnosti matičnih ćelija i održavanje populacije neuralnih progenitora u pluripotentnom i proliferišućem stanju. Ovi geni imaju i značajne funkcije u procesu karcinogeneze. Ekspresija gena ove podgrupe detektovana je u GBM. Funkcija gena SOX2 je dobro proučena kod ovog tipa tumora; pokazano je da ovaj gen promoviše maligni potencijal ćelija GBM i neophodan je za održavanje tumorogenog potencijala matičnih ćelija glioblastoma. Za razliku od gena SOX2, uloga gena SOX1 i SOX3 u ćelijama GBM još uvek nije dovoljno istražena. Stoga, u okviru ove doktorske disertacije analizirana je uloga ovih gena u ćelijama glioblastoma. Dobijeni rezultati pokazuju da ćelijske linije GBM eksprimiraju gen SOX1. Pored toga, u uslovima utišane ekspresije proteina SOX1 detektovano je smanjenje proliferativnog kapaciteta, vijabilnosti i migratornog potencijala U251 ćelija GBM, kao i povećanje broja ovih ćelija u senescenciji. Nakon dediferencijacije ćelijskih linija GBM detektovano je povećanje ekspresije gena SOX1 u poređenju sa ekspresijom uočenom u njihovim parentalnim ćelijama. Nivo ekspresije gena SOX1 povećan je u kulturama matičnih ćelija glioblastoma u poređenju sa ekspresijom ovog gena u imortalizovanim U87 i U251 ćelijama; pri diferencijaciji ovih kultura uočeno je smanjenje ekspresije gena SOX1. Utišavanje ekspresije gena SOX1 u GNS166 kulturi matičnih ćelija GBM dovodi do smanjenja proliferativnog kapaciteta i vijabilnosti ovih ćelija..." ]
[ "one of deadliest cancers. Despite aggressive treatment, including surgical resection, chemotherapy and radiation, the median survival of patients with glioblastoma is 15 months. A growing body of evidence indicates that GBM contains a population of selfrenewing tumor-initiating cells (glioblastoma stem cells - GSCs) that drive tumor initiation, propagation, metastasis and therapy resistance. SOXB1 genes (SOX1, SOX2 and SOX3) encode transcription regulators with important roles in embryonic development and carcinogenesis. Literature date revealed that SOXB1 genes are expressed in GMB tumor samples. The role of one member of this group, SOX2 gene, is well documented in GBM. It was shown that SOX2 gene promotes malignant potential of GBM cells and it is mandatory for maintenance of tumorogenicity of GSCs. Since the function of SOX1 and SOX3 genes in GBM still remains to be established, the aim of this thesis was to analyze the role of these genes in GBM. Obtained results demonstrated that all analyzed GBM cell lines express SOX1. Downregulation of this gene expression decreases proliferation, viability and migration, and induces senescence of U251 cells. Furthermore, dedifferentiation of GBM cells is accompanied by increase of SOX1 level compared to that in parental cells. Expression of this gene was significantly increased in patient-derived GSC cultures compared to that in U87 and U251 cells; downregulation of SOX1 gene expression was seen upon differentiation of GSCs. In addition, knock-down of this gene expression reduced proliferation and viability of GSCs. Results obtained in this thesis reveal SOX3 expression in GBM cell lines and tumor tissue; the expression of this gene was elevated in the most of analyzed GBM samples compared to expression levels detected in non-tumoral brain tissues. A high SOX3 expression was not associated with the overall survival of GBM patients. Ectopic overexpression of this gene increased proliferation, viability, migration and invasion of GBM cells..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "glioblastom", "SOX1", "SOX3", "matične ćelije glioblastoma", "maligni fenotip", "diferencijaciona terapija", "retinoična kiselina" ]
[ "glioblastoma", "SOX1", "SOX3", "glioblastoma stem cells", "malignant phenotype", "differentiation therapy", "retinoic acid" ]
[ "Analiza uloge gena SOX1 i SOX3 u promovisanju malignog fenotipa ćelija glioblastoma" ]
[ "Analysis of the role of SOX1 and SOX3 genes in promotion of malignant phenotype of glioblastoma cells" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1747/IzvestajKomisije21589.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1746/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1746/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1747/IzvestajKomisije21589.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11740" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/8304
123456789-8304.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:15786/bdef:Content/download
no
Evolucija starenja kod laboratorijskih populacija Acanthoscelides obtectus: uloga mitohondrija i oksidativnog stresa
Evolution in laboratory populations of Acanthoscelides obtectus: role of mitochondria and oxidative stress
[ "Stojković, Biljana" ]
[ "Lazarević, Jelica", "Šešlija- Jovanović, Darka", "Petrović, Anđeljko" ]
Đorđević, Mirko S.
2017-06-17T08:53:25
[ "2017-06-17T08:53:25", "2020-07-03T08:08:19" ]
2017-02-13
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=5056", "https://nardus.mpn.gov.rs/handle/123456789/8304", "https://fedorabg.bg.ac.rs/fedora/get/o:15786/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025151410" ]
[ "Ključna pretpostavka evolucione teorije starenja jeste da opadanje uzrasno-specifičnog preživljavanja organizama predstavlja rezultat smanjenja intenziteta prirodne selekcije nakon početka reprodukcije. U osnovi evolucije starenja nalaze se dva populaciono-genetička mehanizma: akumulacija mutacija (AM) i antagonistička plejotropija (AP). U skladu sa pretpostavkama evolucione teorije starenja, kod eksperimentalnih populacija pasuljevog žiška (Acanthoscelides obtectus) selektovanih više od 170 generacija za ranu (E režim) ili kasnu (L režim) reprodukciju, uočena je divergencija u dužini života i drugim preadultnim i adultnim osobinama životne istorije. Evolucija veće dužine života u L režimu u saglasnosti je sa pretpostavkama AP modela, dok u evoluciji kraćeg života E žižaka važnu ulogu ima akumulacija mutacija. Tretiranjem E i L žižaka pesticidima (parakvat i tebufenpirad) koji generišu slobodne radikale, potvrđena je pozitivna korelacija između dužine života i otpornosti na oksidativni stres. Budući da mitohondrija predstavlja glavno mesto sinteze energije i slobodnih radikala, u ovoj tezi je istraženo da li je uzrasno-specifična selekcija oblikovala varijabilnost mtDNK, nDNK i njihovih epistatičkih interakcija. Genotipizacijom mitohondrijskog COI gena i mikrosatelitskih lokusa pokazana je efikasnost uzrasno-specifične selekcije u međupopulacionoj divergenciji mitohondrijskog i jedarnog genskog pula kod pasuljevog žiška. Odvijanje procesa mito-jedarne koevolucije analizirano je korišćenjem mito-jedarnih linija u kojima su E i L mitohondrijski genomi kombinovani sa E i L jedarnim genomima. Pokazano je da su linije sa narušenim mito-jedarnim interakcijama imale niže aktivnosti mitohondrijskih kompleksa elektron transportnog lanca i lošiju preadultnu performansu." ]
[ "According to the evolutionary theory of ageing, age-specific decline in survival is the result of decreasing intensity of natural selection after the onset of reproduction. The evolution of ageing may be explained by two different, but not mutually exclusive, genetic mechanisms: antagonistic pleiotropy (AP) and mutation accumulation (MA). In accordance with evolutionary theory of ageing, two sets of the seed beetle (Acanthoscelides obtectus) experimental lines selected for more than 170 generations for early (E regime) or late (L regime) reproduction, show divergence in longevity and ageing patterns, as well as in other preadult and adult life history traits. Evolution of long life in L regime is predominantly based on antagonistic pleiotropy gene effects, while mutation accumulation plays important role in evolution of short life in E regime. By exposure of E and L beetles to two pesticides (paraquat and tebufenpyrad) that generate free radicals, it was confirmed that extended longevity in L beetles (especially in females) was associated with higher oxidative stress resistance. Additionally, since mitochondria are main site of free radical and energy production, effects of age-specific laboratory selection on mtDNA, nDNA and their epistatic interaction were assessed. Genotyping of mitochondrial COI gene and nuclear microsatellite loci showed that selection in E and L regimes led to divergent evolution of mtDNA and nDNA gene pools. Mitonuclear coevolution was investigated using mitonuclear introgression lines in which E and L mitochondrial genomes were expressed in both E and L nuclear background. It was found that lines with disrupted mitonuclear interactions had lower activity of the mitochondrial electron transport chain complexes and lower preadult performance." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173007/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "starenje", "mitohondrije", "oksidativni stres", "mito-jedarne interakcije", "elektron transportni lanac", "osobine životne istorije", "laboratorijska evolucija", "Acanthoscelides obtectus" ]
[ "ageing", "mitochondria", "oxidative stress", "mitonuclear interactions", "electron transport chain", "life history traits", "laboratory evolution", "Acanthoscelides obtectus" ]
[ "Evolucija starenja kod laboratorijskih populacija Acanthoscelides obtectus: uloga mitohondrija i oksidativnog stresa" ]
[ "Evolution in laboratory populations of Acanthoscelides obtectus: role of mitochondria and oxidative stress" ]
doctoralThesis
[ "BY-NC-ND" ]
Стојковић, Биљана; Петровић, Aнђељко; Лазаревић, Јелица; Шешлија- Јовановић, Дарка; Ђорђевић, Мирко С.; Еволуција старења код лабораторијских популација Aцантхосцелидес обтецтус: улога митохондрија и оксидативног стреса; Еволуција старења код лабораторијских популација Aцантхосцелидес обтецтус: улога митохондрија и оксидативног стреса;
[ "http://nardus.mpn.gov.rs/bitstream/id/1862/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1863/IzvestajKomisije10979.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1863/IzvestajKomisije10979.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1862/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_8304" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11824
123456789-11824.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20869/bdef:Content/download
no
Hibridizacija, morfološka varijabilnost i stabilnost razvića velikih mrmoljaka (Triturus spp.)
Hybridization, morphological variability and developmental stability of large-bodied newts (Triturus spp.)
[ "Ivanović, Ana" ]
[ "Ivanović, Ana", "Cvijanović, Milena", "Cvijanović, Milena", "Stojković, Biljana" ]
Vučić, Tijana
2020-02-07T10:29:22
[ "2020-02-07T10:29:22", "2020-07-03T08:08:04" ]
2019-09-23
[ "https://nardus.mpn.gov.rs/handle/123456789/11824", "http://eteze.bg.ac.rs/application/showtheses?thesesId=7178", "https://fedorabg.bg.ac.rs/fedora/get/o:20869/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025238450" ]
[ "Hibridizacija može imati različite evolucione i ekološke ishode. Veliki mrmoljci (Triturus spp.) formiraju hibridne zone u kojima učestvuju vrste različitog stepena filogenetske srodnosti i predstavljaju pogodan model sistem za ispitivanje procesa i mehanizama hibridizacije i njenih ishoda. Vrste T. ivanbureschi i T. macedoncius hibridizuju u centralnoj i istočnoj Srbiji formirajući specifičnu zonu u kojoj dolazi do zamene vrsta i asimetrične introgresije mitohondrijske DNK uz postojanje vijabilnih hibridnih populacija. Relativno sličan scenario sreće se u zapadnoj Francuskoj gde T. cristatus i T. marmoratus hibridizuju i produkuju sterilne hibride. Ciljevi ove doktorske disertacije su određivanje parametara koji su doprineli formiranju i održavanju hibridne zone, kao i procena uticaja hibridizacije na vijabilitet, morfološku varijabilnost (sa posebnim osvrtom na složeni životni ciklus i metamorfozu) i stabilnost razvića hibrida i roditeljskih vrsta. Podaci su prikupljani tokom tri godine intra- i interspecijskog eksperimentalnog ukrštanja, kao i analizom materijala iz prirodnih populacija. Praćeni su parametri rane životne istorije, ontogenija i disparitet oblika tela i uticaj hibridizacije na stabilnost razvića. Morfološka varijabilnost i stabilnost razvića procenjeni su metodama geometrijske morfometrije. Triturus macedonicus odlikuje se većim reproduktivnim potencijalom u odnosu na T. ivanbureschi, što je moglo da omogući početak širenja areala. Hibridizacija smanjuje vijabilitet jaja, ali ne i embriona. Hibridi se morfološki razlikuju od obe roditeljske vrste i uglavnom su intermedijarni. Larveno razviće je kanalisano, dok su stupnjevi kada jedinke dolaze u kontakt sa novom sredinom (izvaljivanje larvi i metamorfoza) izuzetno varijabilni. Hibridizacija ne utiče na stabilnost razvića velikih mrmoljaka." ]
[ "Hybridization can have various evolutionary and ecological outcomes. Large-bodied newts (Triturus spp.) hybridize mutually regardless of the degree of genetic similarity. This characteristic makes them a good model system to explore hybridization, as well as hybridization outcomes. Triturus ivanbureschi and T. macedonicus have specific species displacement scenario which includes hybridization in Serbia, wide zone of asymmetric mtDNA introgression and viable hybrid populations. Relatively similar species displacement scenario is found in France, where T. cristatus and T. marmoratus hybridize, but their hybrids are sterile. The main aims of this doctoral dissertation are to establish parameters which enabled formation and maintenance of hybrid and introgressive zone and to estimate effects of hybridization on viability, morphological variation (with special emphasis on complex, biphasic life cycle and metamorphosis) and developmental stability. The data was collected during a three-year hybridization experiment, as well as from natural populations. The early life history parameters, ontogeny and disparity of body shape, and the effects of hybridisation on developmental stability were recorded. Morphological variability and developmental stability were analysed by geometric morphometrics. Triturus macedonicus have higher reproductive output compared to T. ivanbureschi which could be an advantage at the initial species contact. Hybridization reduces egg viability, but not the viability of embryos. Hybrids are morphologically divergent from parental species, with mostly intermediate position relative to parental species. Larval development is highly canalized, while the ontogenetic stages when newts confront new environment (hatching and metamorphosis) are highly variable. Hybridization does not affect developmental stability." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173043/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "hibridizacija", "vijabilnost", "morfološka varijabilnost", "varijansa", "morfološki disparitet", "ontogenetske trajektorije", "metamorfoza", "stabilnost razvića", "fluktuirajuća asimetrija", "Triturus spp." ]
[ "hybridisation", "viability", "morphological variability", "variance", "morphological disparity", "ontogenetic trajectories", "metamorphosis", "developmental stability", "fluctuating asymmetry", "Triturus spp." ]
[ "Hibridizacija, morfološka varijabilnost i stabilnost razvića velikih mrmoljaka (Triturus spp.)" ]
[ "Hybridization, morphological variability and developmental stability of large-bodied newts (Triturus spp.)" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1786/IzvestajKomisije21834.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1785/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1785/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1786/IzvestajKomisije21834.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11824" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2045
123456789-2045.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3424/bdef:Content/download
no
Taksonomsko-faunistička studija leptira (Insecta : Lepidoptera) Fruške Gore
Taxonomic-faunistical study of butterflies and moths (Insecta : Lepidoptera) of mt. Fruška Gora
[ "Ćurčić, Srećko" ]
[ "Stanisavljević, Ljubiša", "Kereši, Tatjana", "Pešić, Vladimir", "Ćurčić, Srećko" ]
Stojanović, Dejan V.
2016-01-05T11:45:52
[ "2016-01-05T11:45:52", "2020-07-03T08:08:41" ]
2012-12-07
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=63", "https://nardus.mpn.gov.rs/handle/123456789/2045", "https://fedorabg.bg.ac.rs/fedora/get/o:3424/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024543410" ]
[ "U studiji je dat prikaz jedanaestogodišnjih istraţivanja insekata iz reda Lepidoptera na Fruškoj gori. Registrovane su 934 vrste leptira i moljaca. Za 382 vrste Lepidoptera ili 40,89% od ukupnog broja vrsta izvršena je taksonomska verifikacija analizom hitinskih armatura genitalnih aparata. U periodu od 2001. do 2011. godine sakupljani su leptiri i moljci uglavnom uz pomoć svetlosne klopke (ţivine sijalice TEŢ WTF od 250 W, “Philips Ml“ od 100, 160, 250 i 400 W i petromaks lampe od 400 W), iza koje je postavljeno belo pamuĉno platno. 934 zabeleţene vrste su svrstane u 22 superfamilije, 47 familija i 564 rodova. Broj od 934 vrste Lepidoptera predstavlja u odnosu na evropsku faunu leptira (8478 vrsta) 11,01%. Sve vrste leptira i moljaca Fruške gore svrstane su u 7 zoogeografskih kategorija. PreovlaĊuju evroazijske vrste (449 vrsta ili 48,07% od ukupnog broja vrsta). Evropskih vrsta je 236 (25,27% od ukupnog broja vrsta). Mediteransko-azijski elementi su zastupljeni sa 162 vrste ili 17,34% od ukupnog broja vrsta. Holarktiĉki elementi zastupljeni su sa 44 vrste ili sa 4,71% od ukupnog broja vrsta, a palearktiĉki sa 25 vrsta ili 2,68% od ukupnog broja vrsta. Paleotropsko-suptropski elementi zastupljeni su sa 10 vrsta ili sa 1,07% od ukupnog broja vrsta. Kosmopolitskih vrsta je 8 vrsta ili 0,86% od ukupnog broja vrsta. Sve evidentirane vrste u ovoj studiji grupisane su u pet skupova: mali moljci, veliki moljci, dnevni leptiri, zemljomerke i sovice. Ukupno 287 vrsta malih moljaca svrstano je u 16 superfamilija i 31 familiju. Više od 5% vrsta malih moljaca Evrope (5,16%) je zastupljeno na Fruškoj gori. Veliki moljci (Lasiocampidae, Saturniidae, Sphingidae, Drepanidae, Notodontidae, Lymantriidae i Arctiidae) su zastupljeni na Fruškoj gori sa 77 vrsta . Više od ĉetvrtine vrsta velikih moljaca Evrope (27,5%) je zastupljeno na Fruškoj gori. Dnevni leptiri (Hesperiidae, Papilionidae, Pieridae, Lycaenidae i Nymphalidae) su zastupljeni na Fruškoj gori sa 115 vrsta. Više od ĉetvrtine vrsta dnevnih leptira Evrope (26,13%) je zastupljeno na Fruškoj gori. Zemljomerke su zastupljene na Fruškoj gori sa 187 vrsta. Oko petine vrsta zemljomerki Evrope (20,43%) je zastupljeno na Fruškoj gori. Sovice (Noctuidae, Pantheidae, Nolidae) su zastupljene na Fruškoj gori sa 268 vrsta. Više od petine vrsta sovica Evrope (20,87%) je zastupljeno na Fruškoj gori. Najbrojnija je grupa malih moljaca sa 287 zabeleţenih vrsta ili sa 30,73% od ukupnog broja utvrĊenih vrsta. Zatim sledi grupa sovica sa 268 zabeleţenih vrsta ili 28,69% od ukupnog broja utvrĊenih vrsta. Na trećem mestu po zastupljenosti nalazi se grupa zemljomerki sa 187 zabeleţenih vrsta ili sa 20,02% od ukupnog broja utvrĊenih vrsta. Slede dnevni leptiri (sa 115 vrsta ili 12,31% od ukupnog broja vrsta) i veliki moljci (sa 77 vrsta ili 8,24% od ukupnog broja vrsta). Na Fruškoj gori je zabeleţeno 129 vrsta Lepidoptera (13,80% od ukupnog broja vrsta) koje mogu naneti štetu lišćarskom i ĉetinarskom drveću. Istraţivanjima na Fruškoj gori identifikovana je 61 vrsta Lepidoptera iz grupe migratornih vrsta, tj. selica. Sezonskih selica prvog reda ima 7 vrsta, sezonskih selica drugog reda 1 vrsta, selica iseljenika (lokalnih selaca prvog i drugog reda) 36 vrsta, selica raseljenika (povremenih selaca) 10 vrsta, selica raseljenika (vrsta koje proširuju svoj areal) 2 vrste, dok mogućih selica ima 5 vrsta. U odnosu na zabeleţeni broj od 934 vrste leptira, procenjuje se da je poznato svega oko jedne trećine vrsta koje bi se mogle otkriti na Fruškoj gori. PronaĊene su 133 nove vrste iz reda Lepidoptera za faunu Srbije. Prvi put u Srbiji, ali i u zemljama u sastavu bivše SFRJ je kao prilog poznavanju faune Lepidoptera u ovoj studiji dat detaljan prikaz hitinskih armatura genitalnih aparata sa opredeljujućim taksonomskim karakteristikama za 250 vrsta (26,76% od ukupnog broja vrsta) uglavnom iz grupe malih moljaca i za nekoliko izdvojenih taksona ostalih grupa. Dat je uporedni prikaz brojnosti vrsta po familijama i superfamilijama za Frušku goru, Timoĉku krajinu, Evropu, Rumuniju, rumunski Banat i MaĊarsku. Lepidoptera su veoma slabo istraţeni na pojedinim podruĉjima Fruške gore. Ovo se prvenstveno odnosi na podruĉje juţno od Dunava oko Neština, Suseka, Banoštora i Ĉerevića, deo od Sremskih Karlovaca do Petrovaradina i Ĉortanovaca, od Krušedola i Neradina do Iriga sa juţne strane Fruške gore i od Vrdnika do Leţimira sa jugozapadne strane (izuzimajući podruĉje oko grgurevaĉkog lovaĉkog doma, selo Grgurevci). Neophodno je da se faunistiĉka i ekološka istraţivanja nastave. Veliki broj lokaliteta je nedovoljno istraţen, na pojedinim mikrolokalitetima istraţivanja nisu ni otpoĉela, a potencijalno su na njima se mogu naći zanimljivi nalazi." ]
[ "This thesis presents results of an eleven-year research on insects belonging from order Lepidoptera on Mt. Fruška Gora. Total of 934 species were recorded. For 382 species Lepidoptera, or 40.89% of the total number of species, a taxonomic verification has been performed by the analysis of chitinous armatures of genital apparatus. In the 2001-2011 period, the specimens were collected mostly by light trap (mercury bulb TEŢ WTF of 250W, “Philips Ml“ of 100, 160, 250 and 400W, and Petromax lamp of 400W), with a white cotton sheet propped in behind. 934 recorded species of Lepidoptera belong to 22 superfamilies, 47 families and 564 genera. The number of 934 species represents 11,01% of European fauna of Lepidoptera (8,478 species). The Lepidoptera species from Mt. Fruška Gora are classified into seven zoogeographical categories. Eurasian species are prevailing (449 species or 48.07% of the total number of species). We recorded 236 European species (25.27% of the total number of species) and 162 Mediterranean-Asian species (17.34% of the total number of species). Holarctic elements are represented by 44 species (4.71% of the total number of species), Palearctic elements by 25 species (2.68% of the total number of species), while Paleotropical-subtropical elements are represented by 10 species (1.07% of the total number of species). Finally, cosmopolitan elements are represented by eight species (0.86% of the total number of species). Within the research, all registered species were classified into five groups: Microlepidoptera (micromoths), macromoths, butterflies, geometrid moths and owlet moths. 287 species of micromoths are classified into 16 superfamilies and 31 families. More than 5% of European species of micromoths (5.16%) are present on Mt. Fruška Gora. Macromoths (Lasiocampidae, Saturniidae, Sphingidae, Drepanidae, Notodontidae, Lymantriidae and Arctiidae) are represented on Mt. Fruška Gora with 77 species. More than one quarter of European species of macromoths (27.5%) are recorded on Mt. Fruška Gora. Butterflies (Hesperiidae, Papilionidae, Pieridae, Lycaenidae and Nymphalidae) are represented on Mt. Fruška Gora with 115 species, which is more than a quarter of the butterfly species of Europe (26.13%). Geometrid moths are represented by 187 species on Mt. Fruška Gora, which is about one fifth of European species of Geometridae (20.43%). Owlet moths (Noctuidae, Pantheidae and Nolidae) are represented on Mt. Fruška Gora by 268 species, which is more than a fifth of the European owlet moth species (20.87%). The micromoths are the most numerous group with 287 recorded species, or 30.73% of the total number of species recorded on Mt. Fruška Gora. They are followed by the group of owlet moths with 268 recorded species (28.69% of the total number of species), geometrid moths with 187 recorded species (20.02% of the total number of species), butterflies (with 115 species or 12.31% of the total number of species), and macromoths (with 77 species or 8.24% of the total number of species). Of all Lepidoptera species recorded in Mt. Fruška Gora, 129 (or 13.80% of the total number of species) may be harmful for deciduous and coniferous trees. Research also revealed 61 species of Lepidoptera belonging to the group of migratory species. Seven species are first-order seasonal migratory species (eumigrators), one seasonal species is second-order migratory species (paramigrator), and 36 species are emigrants (first- and second-order local migrants). Finally, among the dismigrators there are two invasive species that expand their areas and five species that are possibly migratory. Regarding the recorded number of 934 species of Lepidoptera, it is estimated that this is just one third of the species that might exist on Mt. Fruška Gora and the rest could be recorded in the future. From Lepidoptera species recorded, 133 are new for the fauna of Serbia. For the first time in Serbia, but also in other former Yugoslav countries, a detailed analysis of chitinous armatures of genital apparatus with presenting specific taxonomic characteristics for 250 species (26.76% of the total number of recorded species), mostly for micromoths and some selected taxa. A comparative overview is given of species population number within families and superfamilies in investigated Fruška Gora area, as well as for Timoĉka Krajina, Europe, Romania, Romanian Banat, and Hungary. The order Lepidoptera is not sufficiently investigated in some areas of Mt. Fruška Gora. This primarily refers to the area south of the Danube River around Neštin, Susek, Banoštor, and Ĉerević, to the part between Sremski Karlovci, Petrovaradin and Ĉortanovci, from Krušedol and Neradin to Irig on the south slope of Mt. Fruška Gora, and from Vrdnik to Leţimir on the southwest slope (except the area around hunter’s house in the village of Grgurevci). Therefore, it is necessary to continue further faunistic and ecological research. A large number of localities are not explored enough, while at some microlocalities investigations have not even started, although they could be very interesting with possible new findings." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43002/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Lepidoptera", "Fruška gora", "fauna" ]
[ "Lepidoptera", "Mt. Fruška Gora", "fauna" ]
[ "Taksonomsko-faunistička studija leptira (Insecta : Lepidoptera) Fruške Gore", "Taxonomic-faunistical study of butterflies and moths (Insecta : Lepidoptera) of mt. Fruška Gora" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Ћурчић, Срећко; Станисављевић, Љубиша; Кереши, Татјана; Пешић, Владимир; Ћурчић, Срећко; Стојановић, Дејан В.; Таксономско-фаунистичка студија лептира (Инсецта : Лепидоптера) Фрушке Горе; Таксономско-фаунистичка студија лептира (Инсецта : Лепидоптера) Фрушке Горе;
[ "https://nardus.mpn.gov.rs/bitstream/id/1937/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1937/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2045" ]
10.2298/bg20121207stojanovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11892
123456789-11892.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20969/bdef:Content/download
no
Molekularni mehanizmi antioksidativnog dejstva ekstrakta kičice (Centaurium erythraea RAFN) u eksperimentalnom modelu dijabetesa pacova
Molecular mechanisms of the antioxidative effect of centaury (Centaurium erythraea RAFN), extract in the experimental model of diabetes in rats
[ "Dinić, Svetlana" ]
[ "Dinić, Svetlana", "Vidaković, Melita", "Vidaković, Melita", "Matić, Gordana" ]
Đorđević, Miloš
2020-02-24T09:14:53
[ "2020-02-24T09:14:53", "2020-07-03T08:08:16" ]
2019-09-27
[ "https://nardus.mpn.gov.rs/handle/123456789/11892", "http://eteze.bg.ac.rs/application/showtheses?thesesId=7230", "https://fedorabg.bg.ac.rs/fedora/get/o:20969/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=" ]
[ "Kičica se u Srbiji tradicionalno koristi za lečenje različitih oboljenja, uključujući i dijabetes. Cilj ovog rada bio je rasvetljavanje mehanizama antioksidativnog i protektivnog dejstva ekstrakta kičice (EK) koji doprinose očuvanju strukture i funkcije β-ćelija pankreasa i ublažavanju komplikacija u dijabetesu. Efekti EK analizirani su na eksperimentalnom modelu dijabetesa pacova izazvanom streptozotocinom (STZ) kao i na Rin-5F β-ćelijama izloženim oksidativnom stresu primenom vodonik peroksida, natrijum nitroprusida ili STZ-a. EK je ispoljio antidijabetogeno dejstvo uočeno kao sniženje nivoa glukoze/glikohemoglobina, poboljšanje lipidnog statusa i povećanje nivoa insulina u cirkulaciji dijabetičnih pacova što se može pripisati detektovanom uticaju EK na oc uvanje strukture Langerhansovih ostrvaca i povec anju mase β-c elija koje produkuju insulin. ntioksidativni efekat EK na β-c elije ogledao se u redukovanju oksidativnih os tec enja, modulisanju aktivnosti i ekspresije enzima antioksidativne zaštite (C T, SOD, GPx i GR) i uravnotežavanju aktivnosti redoks-senzitivnih faktora (NFκB, Nrf-2, Sp1, FOXO3 ) uključenih u regulaciju transkripcije gena za antioksidativne enzime. Dodatni doprinos EK boljem preživljavanju β-ćelija i sekreciji/ekspresiji insulina ostvaren je finim promenama u aktivnosti Akt, ERK i p38 kinaza kao i PDX-1 i MafA proteina. Pored toga, antioksidativni efekat EK kod dijabetičnih životinja ogledao se u zaštiti eritrocita, jetre i bubrega od gliko-oksidativnih oštećenja što je doprinelo poboljšanju njihovih funkcionalnih parametara. Opisani efekti EK ukazuju na značaj daljeg razjašnjavanja mehanizama antioksidativnog i protektivnog dejstva EK i njegovih komponenti u cilju potencijalnog terapijskog delovanja u dijabetesu." ]
[ "Centaury is traditionally used in Serbia for treating different diseases, including diabetes. This study aimed to elucidate the mechanisms of the antioxidant and protective effects of the centaury extract (CE) that preserve the structure and function of pancreatic β-cells and alleviate diabetic complications. The effects of the CE were analyzed on the experimental model of streptozotocin (STZ)-induced diabetic rats and in Rin-5F β-cells exposed to oxidative stress after exposure to hydrogen peroxide, sodium nitroprusside or STZ. The CE exhibited an anti-diabetic effect, observed as a decrease in hyperglycemia and glycohemoglobin concentration, an improved lipid status, and as increased insulin level in the circulation of diabetic rats. These effects can be attributed to the detected impact of the CE on the preservation of the structure of the islets of Langerhans, and on the increase in insulin producing β-cell mass. The antioxidant effect of the CE on β-cells was manifested as a reduction in oxidative damage, changed activities and expression of antioxidant enzymes, CAT, SOD, GPx and GR, and as a readjustment of the activities of redox-sensitive factors, NFκB, Nrf-2, Sp1, FOXO3A, involved in the regulation of gene transcription of antioxidant enzymes. Additional contributions of the CE to improved β-cell survival and insulin secretion/expression were achieved by the fine-tuning of the activities of Akt, ERK and p38 kinases and transcription regulators, PDX-1 and MafA. The antioxidant effect of the CE in diabetic animals was also reflected on increased protection of erythrocytes, liver and kidneys from glyco-oxidative damage, which contributed to the improvement of their functional parameters in diabetic rats. The described effects of the CE point to the importance of further clarification of the mechanisms of the antioxidant and general protective effects of the CE and its components in view of its potential use for therapeutic intervention in diabetes." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173020/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "kičica", "dijabetes", "pankreas", "β-ćelije", "oksidativni stres", "reaktivne vrste kiseonika/azota", "antioksidativna zaštita", "polifenoli", "komplikacije bolesti" ]
[ "centaury", "diabetes", "pancreas", "β-cells", "oxidative stress", "reactive oxygen/nitrogen species", "antioxidant protection", "polyphenols", "diabetic complications" ]
[ "Molekularni mehanizmi antioksidativnog dejstva ekstrakta kičice (Centaurium erythraea RAFN) u eksperimentalnom modelu dijabetesa pacova" ]
[ "Molecular mechanisms of the antioxidative effect of centaury (Centaurium erythraea RAFN), extract in the experimental model of diabetes in rats" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1842/IzvestajKomisije21928.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1841/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1841/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1842/IzvestajKomisije21928.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11892" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2040
123456789-2040.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2269/bdef:Content/download
no
Odgovor hipotalamo-hipofiznog sistema pacova na izoflavone soje : morfofunkcionalna studija
Effects of soy isoflavones on the hypothalamic-pituitary system in rats: a morphofunctional study
[ "Koko, Vesna" ]
[ "Manojlović-Stojanoski, Milica", "Milošević, Verica", "Šošić-Jurjević, Branka", "Ajdžanović, Vladimir" ]
Trifunović, Svetlana L.
2016-01-05T11:45:33
[ "2016-01-05T11:45:33", "2020-07-03T08:08:25" ]
2012-07-10
[ "https://nardus.mpn.gov.rs/handle/123456789/2040", "http://eteze.bg.ac.rs/application/showtheses?thesesId=24", "https://fedorabg.bg.ac.rs/fedora/get/o:2269/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024496818" ]
[ "Izoflavoni soje, genistein i daidzein, se sve više koriste u preventivi i alternativnoj terapiji različitih patoloških stanja. Uticaj izoflavona soje na neuroendokrini sistem bio je, a i danas je, predmet istraživanja različitih studija. Veliki broj literaturnih podataka govori o uticaju izoflavona soje na reproduktivni sistem, s obzirom na njihovu estogensku i anti-estrogensku aktivnost. Ipak, podaci o njihovom uticaju na somatotropni i adrenokortikotropni sistem oskudni su, a neophodni, imajuću u vidu značaj ovih sistema za normalan razvoj i funkcionisanje organizma. Takoñe, mnogobrojne in vitro studije obezbeñuju samo limitirane informacije o potencijalnim efektima in vivo. Cilj ove studije je bio da se ispita uticaj hroničnih tretmana estradioldiproprionatom, genisteinom i daidzeinom na histološke, stereološke i biohemijske parametre somatotropnog i adrenokortikotropnog sistema orhidektomisanih adultnih pacova. Na početku eksperimenta adultni pacovi Wistar soja, stari 3 meseca, su podeljeni u dve eksperimentalne grupe: lažno orhidektomisanu (Sham) i orhidektomisanu (Orx) grupu. Dve nedelje nakon sham operacije ili orhidektomije pacovi su podeljeni u sedam eksperimentalnih grupa. Prvu (Sham1) grupu su sačinjavale sham operisane životinje subkutano (s.c.) tretirane odgovarajućom zapreminom sterilnog maslinovog ulja, medijumom estradiol-diproprionata (medijum I). Drugu (Orx1) grupu su sačinjavale orhidektomisane životinje s.c. tretirane odgovarajućom zapreminom medijuma I. U trećoj (Orx1+E) grupi orhidektomisane životinje su s.c. tretirane estradioldipropionatom u medijumu I (0,6 mg/kg t.m.). Četvrta (sham operisana - Sham2) i peta (orhidektomisana - Orx2) grupa s.c. su tretirane odgovarajućom zapreminom mešavine alkohola i sterilnog maslinovog ulja, medijumom genisteina i daidzeina (u odnosu 1:2; medijum II). Šestu (Orx2+G) grupu su sačinjavale orhidektomisane životinje s.c. tretirane genisteinom u medijumu II (30 mg/kg t.m.), dok je sedma (Orx2+D) grupa orhidektomisanih pacova s.c. tretirana daidzeinom u istom medijumu (30 mg/kg t.m.). Sve grupe životinja su dobijale tretman tokom tri nedelje (hroničan tretman), a žrtvovane su 24 h nakon poslednje primljene doze. Pre početka i nakon završenog tretmana izmerene su telesne mase životinja svih eksperimentalnih grupa, dok su mase hipofiza izmerene nakon žrtvovanja. Za lokalizaciju arkuatnog (Arc) i periventrikularnog (Pe) jedra, paravenrikularnog jedra (PVN) i eminencije medijane (ME) korišćeno je histološko bojenje krezil-ljubičastom bojom. Za obeležavanje oslobañajućih hormona hipotalamusa (oslobañajućeg hormona hormona rasta–GHRH, somatostatina-SS, kortikotropnog oslobañajućeg hormona-CRH) i ćelija adenohipofize (somatotropnih–GH i adrenokortikotropnih-ACTH) korišćeno je imunohistohemijsko bojenje. Histološki i imunohistohemijski obojeni preseci hipotalamusa, kao i imunohistohemijski obojeni preseci hipofiza stereološki su analizirani, uz pomoć newCAST stereološkog softverskog paketa. Dobijene su vrednosti: volumena Arc i Pe jedra i PVN, volumenske gustine SS neurona, volumena hipofize, volumenske i numeričke gustine GH i ACTH ćelija, apsolutnog broja i volumena GH i ACTH ćelija. Koncentracija GH i ACTH u cirkulaciji odreñena je biohemijskim metodama. Dobijeni podaci su statistički obrañeni..." ]
[ "The soy isoflavones genistein and daidzein are being used increasingly as preventive or alternative therapeutics in various pathological conditions. The effects of soy isoflavones on the neuroendocrine system were, and still are, the subject of numerous studies. Literature data predominantly focus on their effects on the gonadotrophic axis, considering the soy isoflavones established estrogenic and antiestrogenic mode of action. However, data about their potential effects on the somatotrophic and adrenocorticotrophic systems are rather scarce, but nevertheless very meaningful, considering the importance of these systems for the normal development and function of an organism. Furthermore, in vitro studies provide only limited data, that cannot be fully extrapolated to in vivo conditions. The aim of this study was to investigate the effects of chronically applied estradiol dipropionate, genistein and daidzein on the histological, stereological and biochemical parameters of somatotrophic and adrenocorticotrophic systems in orchidectomized adult rats. Initially, adult (three months old) Wistar rats were divided into two groups: sham operated (Sham) and orchidectomized (Orx). Two weeks after the surgery, the rats were subdivided into seven experimental groups. The first group (Sham1) included sham operated rats subcutaneously (s.c.) treated with an adequate volume of sterile olive oil, the medium for estradiol dipropionate (medium I). In the second group (Orx1) were orchidectomized rats s.c. treated with an adequate volume of medium I. The third group (Orx1+E) was comprised of orchidectomized rats s.c. treated with estradiol dipropionate in medium I (0.6 mg/kg b.w.). The fourth (sham operated – Sham2) and fifth (orchidectomized – Orx2) group of rats were s.c. treated with adequate volumes of absolute ethanol and sterile olive oil mixture, the medium for genistein or daidzein (mixing ratio was 1:2; medium II). In the sixth group (Orx2+G) were orchidectomized rats s.c. treated with genistein in medium II (30 mg/kg b.w.), while the seventh group (Orx2+D) included orchidectomized rats s.c. treated with daidzein in the same medium (30 mg/kg b.w.). All the groups of animals received the treatment during three weeks (chronic treatment), and were sacrificed 24 h after the last injected dose. All the animals were weighed before and after the treatment, while the pituitary weights were measured after sacrificing. For the localization of arcuate (Arc), periventricular (Pe) and paraventricular (PVN) nuclei, as well as for median eminence (ME) cresyl violet histochemical staining was used. Hypothalamic releasing hormones (growth hormone releasing hormone – GHRH, somatostatin – SS, corticotrophin releasing hormone – CRH) and pituitary cells (somatotrophic – GH and adrenocorticotrophic – ACTH) were immunohistochemically (peroxidase-antiperoxidase) labeled. Histochemically stained and immunohistochemically labeled hypothalamic sections, as well as immunohistochemically labeled pituitary sections were stereologically analysed, using newCast stereological software package. The following values were obtained: the Arc, Pe and PVN nuclei volumes, volume density of SS neurones, volumes of the pituitaries, the volume and numerical density of GH and ACTH cells, as well as the absolute numbers and volumes of GH and ACTH cells. The circulating GH and ACTH were determined biochemically. The obtained data were statistically processed..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173009/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Genistein", "daidzein", "GHRH", "SS", "GH ćelije", "CRH", "ACTH ćelije" ]
[ "Genistein", "daidzein", "GHRH", "SS", "GH cells", "CRH", "ACTH cells" ]
[ "Odgovor hipotalamo-hipofiznog sistema pacova na izoflavone soje : morfofunkcionalna studija", "Effects of soy isoflavones on the hypothalamic-pituitary system in rats: a morphofunctional study" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Коко, Весна; Манојловић-Стојаноски, Милица; Милошевић, Верица; Шошић-Јурјевић, Бранка; Aјджановић, Владимир; Трифуновић, Светлана Л.; Одговор хипоталамо-хипофизног система пацова на изофлавоне соје : морфофункционална студија; Одговор хипоталамо-хипофизног система пацова на изофлавоне соје : морфофункционална студија;
[ "https://nardus.mpn.gov.rs/bitstream/id/1886/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1886/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2040" ]
10.2298/bg20120710trifunovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2065
123456789-2065.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:5384/bdef:Content/download
no
Fluktuirajuća asimetrija kao pokazatelj stabilnosti razvića odabranih biljnih taksona u uslovima nenarušene životne sredine i antropogeno indukovanog stresa
Fluctuating asymmetry as an indicator of developmental stability of selected plant taxa in unpolluted environment and under anthropogenically induced stress
[ "Tarasjev, Aleksej" ]
[ "Stevanović, Vladimir", "Miljković, Danijela", "Avramov, Stevan" ]
Barišić-Klisarić, Nataša R.
2016-01-05T11:46:19
[ "2016-01-05T11:46:19", "2020-07-03T08:08:36" ]
2012-12-27
[ "https://nardus.mpn.gov.rs/handle/123456789/2065", "http://eteze.bg.ac.rs/application/showtheses?thesesId=151", "https://fedorabg.bg.ac.rs/fedora/get/o:5384/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=43481359" ]
[ "Promene u životnoj sredini od industrijske revolucije do danas su bez presedana u istoriji živog sveta i svojim razmerama prete da nadmaše adaptivni potencijal mnogih živih organizama, naročito biljaka, koje kao sesilni organizmi imaju samo ograničene mehanizme za izbegavanje stresa. Razumevanje kako biljke reaguju na ovakve promene, od subcelularnog do nivoa zajednica, je od krucijalnog značaja. U ovom radu smo ispitivali mogućnosti korišćenja analiza fluktuirajuće i radijalne asimetrije kao pokazatelja stabilnosti razvića vegetativnih i reproduktivnih organa kod dve zeljaste monokotile (Iris pumila i Iris germanica) i jedne drvenaste dikotile (Robinia pseudoacacia), u uslovima nenarušene životne sredine i u uslovima antropogeno uzrokovanog stresa (zagađenja u industrijskim i urbanim zonama). Analizirali smo mogućnosti korišćenja ovih analiza kao primarnih indikatora u sredinama sa negativnim antropogenim uticajem, kao i prednosti i mane ovog i nekih drugih metoda detekcije zagađenja. Stabilnost razvića procenjena putem fluktuirajuće i radijalne asimetrije se razlikuje između izučavanih sredina u slučaju sve tri vrste. Kod vrste R. pseudoacacia kao sredina u kojoj je detektovan najveći stepen razvojne nestabilnosti se izdvojio Kostolac (antropogeno degradirana sredina). Kod vrste I. pumila su biljke poreklom iz sredine pod antropogenim uticajem pokazale veću razvojnu nestabilnost kako u slučaju fluktuirajuće asimetrije, tako i u slučaju radijalne asimetrije. Kod vrste I. germanica su detektovane značajne razlike između zagađenja u slučaju indeksa radijalne asimetrije gde su biljke poreklom sa zagađenog staništa pokazale značajno veću razvojnu nestabilnost od biljaka poreklom sa nezagađenog staništa. Kod sve tri vrste je utvrđena značajna interakcija individue i asimetrije osobina, tj. da ekspresija razlika u fluktuirajućoj i radijalnoj asimetriji između ispitivanih osobina zavisi od klona tj. individue." ]
[ "Changes in the environment from the industrial revolution till present are unprecedented in the history of the life on Earth and their magnitude can overpower the adaptive potential of many living organisms, especially plants, that are sessile and have only limited mechanisms for avoiding stress. Understanding how plants respond to these changes, from subcellular to the community level, is crucial. In this study we investigated the possibility of using analysis of fluctuating and radial asymmetry as an indicator of developmental stability of vegetative and reproductive organs in two herbaceous monocots (Iris pumila and Iris germanica) and one wooden dikotile (Robinia pseudoacacia), in unpolluted environment, as well as in environment characterized by anthropogenically induced stress (industrial and urban zones pollution). We have analyzed the possibility of using this analysis as a primary indicator of pollution in areas with negative human impact, and the advantages and disadvantages of these and some other methods of pollution detection. Developmental stability estimated by fluctuating and radial asymmetry differed between the studied habitats for all three species. For R. pseudoacacia plants from Kostolac (polluted environment) had the highest degree of developmental instability. I. pumila plants originated from the environment under the influence of anthropogenic stress showed greater developmental instability in the case of fluctuating asymmetry, as well as radial asymmetry. In I. germanica species we detected significant differences between polluted and unpolluted habitats estimated by radial asymmetry where the plants originated from contaminated habitats showed significantly greater developmental instability. In all three species we detected significant interaction between individuals and trait asymmetries, e.g. expression of the difference in the radial and fluctuating asymmetry between the studied traits depended on the individual (clone)." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173025/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Robinia pseudoacacia", "Iris pumila", "Iris germanica", "razvojna stabilnost", "radijalna asimetrija", "fluktuirajuća asimetrija", "biomonitoring" ]
[ "Robinia pseudoacacia", "Iris pumila", "Iris germanica", "developmental stability", "radial asymmetry", "fluctuating asymmetry", "biomonitoring" ]
[ "Fluktuirajuća asimetrija kao pokazatelj stabilnosti razvića odabranih biljnih taksona u uslovima nenarušene životne sredine i antropogeno indukovanog stresa", "Fluctuating asymmetry as an indicator of developmental stability of selected plant taxa in unpolluted environment and under anthropogenically induced stress" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Тарасјев, Aлексеј; Миљковић, Данијела; Стевановић, Владимир; Aврамов, Стеван; Баришић-Клисарић, Наташа Р.; Флуктуирајућа асиметрија као показатељ стабилности развића одабраних биљних таксона у условима ненарушене животне средине и антропогено индукованог стреса; Флуктуирајућа асиметрија као показатељ стабилности развића одабраних биљних таксона у условима ненарушене животне средине и антропогено индукованог стреса;
[ "https://nardus.mpn.gov.rs/bitstream/id/1917/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1917/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2065" ]
10.2298/bg20121227barisicklisaric
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11825
123456789-11825.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20872/bdef:Content/download
no
Morfološka, fitohemijska i molekularna istraživanja karpatsko - balkanskog kompleksa Centaurea atropurpurea (Asteraceae) - filogenetski i taksonomski aspekt
Morphological, phytochemical and molecular studies of Carpathian-Balkan complex Centaurea atropurpurea (Asteraceae) - phylogenetic and taxonomic implications
[ "Janaćković, Peđa" ]
[ "Marin, Petar", "Lakušić, Dmitar", "Zlatković, Bojan", "Rajčević, Nemanja" ]
Novaković, Jelica J.
2020-02-07T10:29:23
[ "2020-02-07T10:29:23", "2020-07-03T08:08:13" ]
2019-10-19
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=7179", "https://nardus.mpn.gov.rs/handle/123456789/11825", "https://fedorabg.bg.ac.rs/fedora/get/o:20872/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025234354" ]
[ "Predstavnici kompleksa Centaurea atropurpurea (Acrocentron, Asteraceae) naseljavaju Balkan i južne Karpate. Varijabilnost taksona ovog kompleksa navodi na potrebu detaljnog istraživanja, kako bi se razjasnio njihov taksonomski status i bolje razumela filogenija grupe. Morfološke, fitohemijske, citološke i molekularne analize obuhvatile su 23 populacije vrste Centaurea calocephala sa celog areala, kao i 16 populacija ostalih taksona iz kompleksa Centaurea atropurpurea. Na osnovu horoloških podataka urađene su mape distribucije pojedinačnih taksona i istraživanog kompleksa. Opisana je nova vrsta za nauku – Centaurea zlatiborensis, endemična vrsta za Srbiju. Urađena je lektotipifikacija C. gjurasinii i C. crnogorica. Rezultati morfoloških analiza pokazali su veću varijabilnost karaktera stabljike i listova nego karaktera cvasti. Klaster analiza i CDA populacija C. calocephala pokazale su izdvajanje populacija: 1 (Lika) i 17 (Cluj-Napoca) na osnovu karaktera cvasti, dok su se populacije: 17 (Cluj-Napoca) i 7 (Đerdap) izdvojile na osnovu karaktera stabljike i listova. Fitohemijska ispitivanja isparljivih komponenti taksona kompleksa Centaurea atropurpurea pokazala su prisustvo dominantnih komponenti: germakrena D, E-kariofilena i kariofilen oksida. Na osnovu fitohemijskih markera u okviru taksona C. calocephala izdvojile su populacije 1 (Lika) i 20 (Cheile Turzii), dok su se taksoni C. zlatiborensis i C. crnogorica izdvojili od ostalih takona kompleksa. ETS analiza pokazala je monofiletsko poreklo Balkanske klade sek. Acrocentron. Uočena je introgresija i retikulacija koje su posledice homoploidne hibridizacije između taksona tokom ledenog doba u refungijumima na Balkanu. Na osnou ETS i AGT1 izdvojile su se grupe Calocephala A i B, kao i Grbavacensis grupa. Citološke analize pokazale su da svi istraživani taksoni iz kompleksa imaju diploidan broj hromozoma: 2n=20 i 2n=22." ]
[ "Representatives of Centaurea atropurpurea complex (Acrocentron, Asteraceae) are distributed on the Balkans and the southern Carpathians. The variability of the taxa of this complex indicates the need for detailed research, in order to clarify their taxonomic status and phylogeny. Morphological, phytochemical, cytological and molecular analyses included twenty-three populations of Centaurea calocephala and sixteen populations of other taxa from Centaurea atropurpurea complex. Based on the horological data, maps of the distribution for each taxon and the investigated complex were made. A new species for science has been described ‒ Centaurea zlatiborensis, an endemic species for Serbia. C. gjurasinii and C. crnogorica are lectotypified. The results of morphological analyses showed a greater variability of the stem and the leaves characters in comparison to the capitula characters. In cluster analysis and CDA population of C. calocephala separated from populations: 1 (Lika) and 17 (Cluj-Napoca) based on the characters of capitula, while the populations: 17 (Cluj-Napoca) and 7 (Djerdap) were separated based on the characters of the stem and leaves. Phytochemical analysis of the volatile compounds of the Centaurea atropurpurea complex showed the presence of the dominant components: germacrene D, E-caryophyllene and caryophyllene oxide. On the basis of the phytochemical markers, the populations of 1 (Lika) and 20 (Cheile Turzii) were separated within the C. calocephala, while the C. zlatiborensis and C. crnogorica separated from other taxa of the complex. ETS analysis showed the monophyletic origin of the Balkan clade of the sect. Acrocentron. Introgression and reticulation were observed, which are the consequences of homoploid hybridization between taxa during the ice age in Balkan refugia. ETS and AGT1 showed forming the groups Calocephala A and B, as well as the Grbavacensis group. Cytological analyses have shown that all investigated taxa from the complex have a diploid chromosome number: 2n = 20 and 2n = 22." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173029/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Asteraceae", "listova i stabljike", "isparljive komponente", "ETS i AGT1", "broj hromozoma", "distribucija", "taksonomija", "filogenija", "kompleks Centaurea atropurpurea", "morfologija cvasti" ]
[ "Asteraceae", "leaves", "and stems", "volatile components", "ETS and AGT1", "chromosome number", "distribution", "taxonomy", "phylogeny", "complex Centaurea atropurpurea", "morphology of capitula" ]
[ "Morfološka, fitohemijska i molekularna istraživanja karpatsko - balkanskog kompleksa Centaurea atropurpurea (Asteraceae) - filogenetski i taksonomski aspekt" ]
[ "Morphological, phytochemical and molecular studies of Carpathian-Balkan complex Centaurea atropurpurea (Asteraceae) - phylogenetic and taxonomic implications" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1828/IzvestajKomisije21835.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1827/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1827/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1828/IzvestajKomisije21835.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11825" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11836
123456789-11836.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20932/bdef:Content/download
no
Studies on structural and functional changes of mouse choroid plexus in the initiation of neuroinflammation
Значај структурних и функционалних промена хороидног плексуса миша у иницијацији неуроинфламације
[ "Vandenbroucke, Roosmarijn" ]
[ "Kanazir, Selma", "Nedeljković, Nadežda", "Anđus, Pavle", "Libert, Claude" ]
Brkić, Marjana
2020-02-14T14:30:25
[ "2020-02-14T14:30:25", "2020-07-03T08:08:07" ]
2019-09-27
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=7215", "https://nardus.mpn.gov.rs/handle/123456789/11836", "https://fedorabg.bg.ac.rs/fedora/get/o:20932/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=51822095" ]
[ "" ]
[ "Neuroinflammation has been considered a common denominator and crucial player in neurodegeneration observed in various central nervous system (CNS) disorders. Considering the increasing evidence on the role of choroid plexus (CP) in neuroinflammatory processes through alterations in morphology and functionality of the choroid plexus epithelial (CPE) cells, the main goal of this thesis was to test the contribution of the CP in the initiation of neuroinflammation in two animal models of neuroinflammation-associated diseases: a model of Alzheimer’s disease, induced by intracerebroventricularly (i.c.v.) injected amyloid beta oligomers (AβO) and a lipopolysaccharide (LPS) induced sepsis animal model of systemic inflammation. Main findings from this research conclude that blood cerebrospinal fluid barrier (BCSFB) permeability is increased upon AβO injection, resulting from the loss of typical cuboidal morphology of CPE cells and a decrease in expression of tight junctions components. In the CP, upregulation of gene expression for various cytokines was observed, as well as their increased levels in the cerebrospinal fluid (CSF). Also, increase in gene expression for several matrix metalloproteinases (MMP) in the CP, and in MMP activity in the CSF was noted. After i.c.v. injection of broad spectrum MMP inhibitor with AβO, prevention of AβO-induced BCSFB permeability was found. In accordance with this, increase in BCSFB permeability upon AβO injection was observed in MMP3 deficient mice, but to a lesser extent. Furthermore, an increase in the number of particles in the CSF and an increase in gene expression of extracellular vesicles (EV) markers and miR-155 was found in the CP. A similar pattern of changes in the CP was observed in response to LPS injection compared to AβO injection. The results of this study revealed a significant role for the CP in the initiation of neuroinflammation, through structural and functional changes, in two different models associated with neuroinflammation." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173056/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "BCSFB", "CP", "MMP", "EV", "AβO", "neuroinflammation", "sepsis" ]
[ "KLB", "HP", "MMP", "EV", "AβO", "neuroinflamacija", "sepsa" ]
[ "Studies on structural and functional changes of mouse choroid plexus in the initiation of neuroinflammation" ]
[ "Значај структурних и функционалних промена хороидног плексуса миша у иницијацији неуроинфламације" ]
doctoralThesis
[ "BY-NC-SA" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1806/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1807/IzvestajKomisije21878.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1806/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1807/IzvestajKomisije21878.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11836" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2039
123456789-2039.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2320/bdef:Content/download
no
Variranje odnosa polova, polnog dimorfizma i komponenti adaptivne vrednosti u populacijama Mercurialis perennis L. (Euphoriaceae) duž gradijenta nadmorske visine
Variation in sex ratio, sexual dimorphism, and fitness components in populations of Mercurialis perennis L. (Euphorbiaceae) along the altitudinal gradient
[ "Cvetković, Dragana" ]
[ "Blagojević, Jelena", "Jovanović, Slobodan" ]
Jovanović, Vladimir M.
2016-01-05T11:45:32
[ "2016-01-05T11:45:32", "2020-07-03T08:08:38" ]
2012-09-29
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=33", "https://nardus.mpn.gov.rs/handle/123456789/2039", "https://fedorabg.bg.ac.rs/fedora/get/o:2320/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024510642" ]
[ "Vrste roda Mercurialis su se pokazale kao atraktivan objekat za raznovrsna ekološka, genetička i istraţivanja u evolucionoj biologiji biljaka. Šumski prosinac, Mercurialis perennis L., je višegodišnja zeljasta anemofilna i dvodoma vrsta, karakteristična za primarna ili manje narušena šumska staništa. Analiza populacija ove vrste sa različitih nadmorskih visina pruţila je mogućnost da se na relativno malom geografskom prostoru istraţi uticaj velikog raspona variranja ekoloških faktora na morfološke karakteristike i reproduktivnu alokaciju (RA) kod pripadnika različitih polova, kao i na brojčani odnos polova u populaciji. Istraţivanje je obuhvatilo populacije sa 14 lokaliteta u Srbiji, koje su uzorkovane u periodu 2006–2009. Statistički značajno odstupanje od pretpostavljenog ravnoteţnog odnosa polova ustanovljeno je u 69,5% populacionih uzoraka. Broj uzoraka sa neravnoteţnim odnosom polova varirao je meĎu godinama, a u većini istraţenih populacija neravnoteţa je bila u korist muških biljaka. Neravnoteţa u korist muških biljaka ustanovljena je i u istraţivanjima na drugim populacijama ove vrste, a ovakav obrazac neravnoteţe polova se smatra uobičajenim za višegodišnje dvodome biljke. Indeks polnog dimorfizma je kod većine analiziranih osobina imao male do umerne vrednosti, dok su izrazito i dosledno dimorfne bile one osobine koje su direktno povezane sa reprodukcijom – broj cvetova i masa cvasti. Smer polnog dimorfizma razlikuje se kod ovih osobina. Muški pol produkuje više cvetova, što ukazuje na pojačanu intraseksualnu selekciju u muškom polu za veću produkciju polena. S druge strane, masa ţenskih cvasti je višestruko veća od mase muških cvasti, što se preslikava i u veću reproduktivnu alokaciju ţenskih jedinki. U ţenskom polu je detektovan i obrazac smanjenja ulaganja u reprodukciju sa povećanjem nadmorske visine na kojoj biljka raste. Analize polnog dimorfizma u visini biljke pokazale su da je u većini populacionih uzoraka muški pol viši, što se uklapa u pretpostavke hipoteze disperzije polena..." ]
[ "The plant species of genus Mercurialis are very attractive object for various ecological, genetical and evolutionary researches. Dog’s mercury, Mercurialis perennis L., is a perennial anemophilous and dioecious herb, which usually grows in old and undisturbed forests. The analyses of populations of dog’s mercury from various altitudes gave us opportunity to investigate the effect of great environmental variation on morphological traits, reproductive allocation in different sexes, as well as on sex ratios in populations. This research included populations from 14 localities in Serbia sampled in 2006–2009. Statistically significant bias in sex ratio was found in 69.5% of population samples. Number of samples with biased sex ratio varied among years, and the majority of samples were male-biased. The male-biased populations of dog’s mercury were found elsewhere, and this pattern of bias is regarded to as the common one in dioecious perennials. Sexual dimorphism index for greater part of analysed traits had small to moderate values, while reproductive traits (number of flowers, mass of inflorescences) were markedly and consistently dimorphic. The range and direction of dimorphism differed in these reproductive traits. Males produced more flowers, and this information indicates pronounced intrasexual selection in males for greater pollen production. On the other hand, mass of female inflorescences was manifold bigger than mass of male inflorescences, and female reproductive allocation was bigger in a similar manner. In females, we also found pattern of decrease in reproductive allocation with the increase of altitude. The analyses of sexual dimorphism in plant size showed that males were the higher sex in majority of population samples. This is in agreement with pollen-dispersal hypothesis..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173003/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "Mercurialis perennis", "odnos polova", "polni dimorfizam", "reproduktivno ulaganje", "evoluciona ekologija", "citogeografija" ]
[ "Mercurialis perennis", "sex ratio", "sexual dimorphism", "reproductive allocation", "evolutionary ecology", "cytogeography" ]
[ "Variranje odnosa polova, polnog dimorfizma i komponenti adaptivne vrednosti u populacijama Mercurialis perennis L. (Euphoriaceae) duž gradijenta nadmorske visine", "Variation in sex ratio, sexual dimorphism, and fitness components in populations of Mercurialis perennis L. (Euphorbiaceae) along the altitudinal gradient" ]
[ "" ]
doctoralThesis
[ "BY-NC-SA" ]
Цветковић, Драгана; Јовановић, Слободан; Благојевић, Јелена; Јовановић, Владимир М.; Варирање односа полова, полног диморфизма и компоненти адаптивне вредности у популацијама Мерцуриалис переннис Л. (Еупхориацеае) дуж градијента надморске висине; Варирање односа полова, полног диморфизма и компоненти адаптивне вредности у популацијама Мерцуриалис переннис Л. (Еупхориацеае) дуж градијента надморске висине;
[ "https://nardus.mpn.gov.rs/bitstream/id/1925/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1925/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2039" ]
10.2298/bg20120929jovanovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2044
123456789-2044.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2124/bdef:Content/download
no
Tkivna specifičnost efekata 17ß-estradiola na signalni put insulina
Tissue specificity of 17ß-estradiol effects on insuli signaling pathway.
[ "Korićanac, Goran" ]
[ "Cvijić, Gordana", "Žakula, Zorica" ]
Milosavljević, Tijana M.
2016-01-05T11:45:51
[ "2016-01-05T11:45:51", "2020-07-03T08:08:40" ]
2012-06-14
[ "https://nardus.mpn.gov.rs/handle/123456789/2044", "http://eteze.bg.ac.rs/application/showtheses?thesesId=11", "https://fedorabg.bg.ac.rs/fedora/get/o:2124/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=" ]
[ "Insulin i estradiol imaju va.nu ulogu u regulaciji metabolizma ugljenih hidrata i lipida. Razli.ita klini.ka istra.ivanja i eksperimentalni podaci ukazuju da varijacije u koncentraciji estrogena uti.u na insulinsko delovanje. Cilj ove studije je bilo pore.enje uticaja estradiola na po.etne molekule insulinskog signalnog puta u glavnim ciljnim tkivima za insulin (jetra) i estradiol (uterus), kao i u srcu, u kome oba hormona ostvaruju zna.ajne efekte. Ovarijektomisane .enke pacova su tretirane estradiolom 6 h pre analize sadr.aja proteina i iRNK molekula signalnog puta insulina. Da bi se istakli efekti estradiola na fosforilacije i asocijacije molekula relevantne za insulinski signalni put, .ivotinje su dodatno injecirane insulinom 30 min pre eksperimenta. Tretman estradiolom nije promenio nivo insulina i glukoze u plazmi, ali je doveo do zna.ajnog smanjenja nivoa slobodnih masnih kiselina i pove.anja te.ine uterusa. U jetri, tretman estradiolom je doveo do smanjenja fosforilacije IR, kao i smanjenja proteinskog sadr.aja IRS-1, .to navodi na zaklju.ak da je estradiol suprimirao efekte insulina preko IR/IRS-1 puta i verovatno ih usmerio na alternativni put, .to je potkrepljeno i pove.anjem proteinskog sadr.aja IRS-2. U uterusu je tretman estradiolom nakon 6 h doveo do statisti.ki zna.ajnog pove.anja proteinskog sadr.aja skoro svih ispitivanih molekula signalnog puta insulina. U srcu je estradiol uzrokovao pove.anje asocijacije IRS-1/p85, pove.anja sadr.aja proteina i iRNK p85, kao i pove.anje fosforilacije Akt na Ser473. S druge strane, tretman estradiolom je u srcu izazvao i smanjenje fosforilacije tirozina IR, smanjenje proteinskog sadr.aja IRS-2 i iRNK oba IRS proteina. Rezultati ove studije ukazuju na to da tretman estradiolom indukuje tkivno specifi.ne promene u insulinskom signalnom putu. Posledice tretmana estradiolom na molekule insulinskog signalnog puta su o.iglednije u uterusu, ali je njihov fiziolo.ki zna.aj za insulinsko delovanje verovatno ve.i u jetri. S druge strane, rezultati dobijeni u srcu sugeri.u veoma kompleksnu ulogu estradiola u fiziologiji srca, koja se manifestuje i kombinacijom pozitivnog i negativnog, genomskog i negenomskog delovanja ovog hormona na molekule signalnog puta insulina." ]
[ "Insulin and estradiol play important role in regulation of carbohydrate and lipid metabolism. Various clinical observations and experimental data suggest that variations in the concentration of estrogens affect insulin action. The aim of the present study was to compare the impact of estradiol on early steps of insulin signaling in main target tissues of insulin (the liver) and estradiol (the uterus), and in the heart, where both hormones realize important effects. Ovariectomized female rats were treated with estradiol 6 h prior to analysis of protein and mRNA content of insulin signaling molecules. To delineate estradiol effects on phosphorylations and molecular associations relevant for insulin signaling, animals were treated additionally with insulin 30 min before the experiment. Treatment with estradiol did not change the levels of plasma insulin and glucose, but it significantly decreased the free fatty acid level and increased uterine weight. In liver, estradiol treatment decreased IR phosphorylation and IRS-1 protein content, suggesting that estradiol suppressed insulin action through IR/IRS-1 and probably redirected it to alternative pathway. This conclusion is supported with increase of IRS-2 protein content. In uterus, estradiol treatment resulted in significant increase of protein content of almost all analyzed molecules. In heart, estradiol increased IRS-1/p85 association, p85 protein and mRNA level, and Ser473Akt phosphorylation. On the other hand, estradiol treatment decreased tyrosine phosphorylation of cardiac IR, protein content of IRS-2, and mRNA of both IRS proteins. These results suggest that estradiol treatment induces tissue-specific changes in insulin signaling. Consequences of estradiol treatment on insulin signaling molecules are more apparent in uterus, but their physiological relevance for insulin action is probably more important in liver. On the other hand, results obtained in heart suggest very complex role of estradiol in heart physiology, represented by, amongst other effects, combination of positive and negative, genomic and nongenomic actions of this hormone on insulin signaling molecules." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41009/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Estradiol", "insulinski signalni put", "jetra", "uterus", "srce" ]
[ "Estradiol", "insulin signaling", "liver", "uterus", "heart" ]
[ "Tkivna specifičnost efekata 17ß-estradiola na signalni put insulina", "Tissue specificity of 17ß-estradiol effects on insuli signaling pathway." ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Корићанац, Горан; Цвијић, Гордана; Жакула, Зорица; Милосављевић, Тијана М.; Ткивна специфичност ефеката 17ß-естрадиола на сигнални пут инсулина; Ткивна специфичност ефеката 17ß-естрадиола на сигнални пут инсулина;
[ "https://nardus.mpn.gov.rs/bitstream/id/1933/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1933/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2044" ]
10.2298/bg20120614milosavljevic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/8364
123456789-8364.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:15910/bdef:Content/download
no
Funkcionalna analiza genskih varijanti FIIc.1787G>A (protrombin, Beograd) i FIIc.*64_*66del i njihova povezanost sa trombofolijom
Functional analysis of FIIc.1787G>A (protrombin, Belgrade) and FIIc.*64_*66del gene variants and their assotiation with trombophilia
[ "Đorđević, Valentina" ]
[ "Radojković, Dragica", "Đorđević, Valentina", "Radojković, Dragica", "Savić-Pavićević, Dušanka" ]
Gvozdenov, Maja Ž.
2017-07-10T15:03:06
[ "2017-07-10T15:03:06", "2020-07-03T08:08:21" ]
2017-05-05
[ "https://nardus.mpn.gov.rs/handle/123456789/8364", "http://eteze.bg.ac.rs/application/showtheses?thesesId=5098", "https://fedorabg.bg.ac.rs/fedora/get/o:15910/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025154994" ]
[ "Protrombin predstavlja zimogen trombina (koagulacinog faktora II), koji ima centralnu ulogu u održanju hemostazne ravnoteže. Zahvaljujući alosteričnoj regulaciji, trombin može da vrši i prokoagulantnu i antikoagulantnu funkciju. Region 3' kraja gena za protrombin ima nekanonsku organizaciju i podložan je nastanku genskih varijanti koje mogu imati značajnu ulogu u regulaciji ekspresije i funkcije protrombina. Do sada opisane varijante u ovom regionu su povezivane sa povišenom ekspresijom protrombina koja može dovesti do hiperkoagulacije i povećane sklonosti ka trombozama, odnosno trombofiliji. U Laboratoriji za molekularnu biologiju, Instituta za molekularnu genetiku i genetičko inženjerstvo, u 3' kraju gena za protrombin opisane su FIIc.1787G>A i FIIc.*64_*66del varijante čiji mehanizmi do sada nisu rasvetljeni. Varijanta FIIc.1787G>A (protrombin Beograd) se nalazi u poslednjem egzonu gena za protrombin i dovodi do aminokiselinske zamene Arg596Gln u proteinu. Ova varijanta se nalazi u regionu za koji se vezuju joni natrijuma, neophodni za prokoagulantnu aktivnost trombina, kao i prirodni trombinski inhibitor- antitrombin. Varijanta FIIc.*64_*66del se nalazi u 3' netranslatirajućem regionu gena i predstavlja deleciju 3 nukleotida. Imajući u vidu pozicije u različitim strukturnim elementima 3' kraja gena, pretpostavlja se da su mehanizmi delovanja ovih varijanti različiti. Prvi deo studije je imao za cilj određivanje učestalosti FIIc.1787G>A i FIIc.*64_*66del varijanti kod 353 pacijenta sa različitim trombotičkim poremećajima i 250 zdravih ispitanika u srpskoj populaciji. Pacijenti su u zavisnosti od tipa trombotičkog poremećaja podeljeni u 4 grupe: tromboze dubokih vena (94 pacijenta), izolovani plućni embolizam (104 pacijenta), kombinovani trombotički poremećaji (49 pacijenata) i spontani pobačaji (106 pacijentkinja). Drugi deo studije je obuhvatio ex vivo analize, s ciljem da se ispita uticaj navedenih varijanti na funkcionalnost i raspoloživu količinu protrombina u plazmi ispitanika..." ]
[ "Prothrombin is a zymogen of thrombin (coagulation factor II), which plays a central role in maintaining hemostatic balance. Due to the allosteric regulation, thrombin has dual function: procoagulant and anticoagulant. The 3' end of prothrombin gene has noncanonical organization, which is susceptible to the genetic variants that might have a significant role in the regulation of prothrombin expression and function. Variants reported within this region lead to increased prothrombin expression which is associated with hypercoagulability and increased tendency to thrombophilia. In the Laboratory for Molecular Biology at the Institute of Molecular Genetics and Genetic Engineering, we have reported FIIc.1787G>A and FIIc.*64_*66del variants in 3' end of prothrombin gene, but their mechanisms of action have not been elucidated so far. The FIIc.1787G>A (prothrombin Belgrade) is located in the last exon of the prothrombin gene, leading to amino acid substitution Arg596Gln in the protein. This variant is positioned in a region of antithrombin (thrombin inhibitor) binding site, as well as in Na+ binding loop, which is significant for procoagulant activity of thrombin. The FIIc.*64_*66del is located in the 3' untranslated gene region and represents a deletion of three nucleotides. Taking into account the position of these two variants in different structural elements of 3' end of prothrombin gene, it is assumed that they differ in the mechanisms of action. In the first part of the study, we determined the frequency of FIIc.1787G>A and FIIc.*64_*66del variants in 353 patients with thrombotic disorders and 250 healthy subjects in Serbian population. Patients were divided into 4 groups according to the type of thrombotic disorders: deep vein thrombosis (94 patients), isolated pulmonary embolism (104 patients), combined thrombotic disorders (49 patients) and fetal loss (106 patients). The second part of the study included the ex vivo analyses, with aim to investigate the impact of these variants on the functionality and available amount of prothrombin in the subjects plasma samples..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173008/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "FIIc.1787G>A", "protrombin Beograd", "FIIc.*64_*66del", "protrombin", "3' kraj gena", "antitrombin rezistencija", "regulacija genske ekspresije", "thrombofilija" ]
[ "FIIc.1787G>A", "prothrombin Belgrade", "FIIc.*64_*66del", "prothrombin", "3end of gene", "antithrombin resistance", "gene expression regulation", "thrombophilia" ]
[ "Funkcionalna analiza genskih varijanti FIIc.1787G>A (protrombin, Beograd) i FIIc.*64_*66del i njihova povezanost sa trombofolijom" ]
[ "Functional analysis of FIIc.1787G>A (protrombin, Belgrade) and FIIc.*64_*66del gene variants and their assotiation with trombophilia" ]
doctoralThesis
[ "BY-NC-ND" ]
Ђорђевић, Валентина; Радојковић, Драгица; Ђорђевић, Валентина; Радојковић, Драгица; Савић-Павићевић, Душанка; Гвозденов, Маја Ж.; Функционална анализа генских варијанти ФИИц.1787Г>A (протромбин, Београд) и ФИИц.*64_*66дел и њихова повезаност са тромбофолијом; Функционална анализа генских варијанти ФИИц.1787Г>A (протромбин, Београд) и ФИИц.*64_*66дел и њихова повезаност са тромбофолијом;
[ "https://nardus.mpn.gov.rs/bitstream/id/1869/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1870/IzvestajKomisije11048.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1869/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1870/IzvestajKomisije11048.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_8364" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2042
123456789-2042.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2348/bdef:Content/download
no
Uticaj restriktivnog režima ishrane na plastičnost neurona i glije nakon povrede senzomotorne kore mozga pacova
Effect of dietary restriction on meuronal and glial plasticity following injury to the rat somatosensory cortex
[ "Kanazir, Selma" ]
[ "Nedeljković, Nadežda", "Pešić, Vesna", "Ruždijić, Sabera", "Perović, Milka" ]
Lončarević-Vasiljković, Nataša
2016-01-05T11:45:33
[ "2016-01-05T11:45:33", "2020-07-03T08:08:29" ]
2012-09-28
[ "https://nardus.mpn.gov.rs/handle/123456789/2042", "http://eteze.bg.ac.rs/application/showtheses?thesesId=39", "https://fedorabg.bg.ac.rs/fedora/get/o:2348/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41539855" ]
[ "Traumatska povreda mozga (engl. traumatic brain injury, TBI) predstavlja povredu moždanog tkiva uzrokovanu mehaničkom povredom glave. TBI je jedan od vodećih uzroka smrtnosti i invaliditeta u svetu, u populaciji ljudi do 45 godina starosti. Posledice TBI zavise od lokalizacije i količine oštećenja moždanog tkiva i mogu varirati od blažih motoričkih i kognitivnih smetnji, pa sve do težih oblika invaliditeta i smrti. Traumatska povreda mozga dovodi do narušavanja krvno-moždane barijere, što rezultuje tačno određenim sledom događaja u povređenom tkivu CNS-a. Naime, akutna faza, označena kao primarna povreda, nastaje direktnim delovanjem mehaničke sile na moždano tkivo i javlja se u trenutku povrede. Događaji koji slede nakon toga označeni su kao sekundarna povreda koja nastaje kao posledica inicijalnog oštećenja, a obuhvata procese koji dovode do daljeg oštećenja tkiva u danima i nedeljama nakon povrede. To su pre svega zapaljenski procesi koji dovode do smrti neurona koji prvobitno nisu bili zahvaćeni mehaničkom povredom. Smatra se da je broj neurona koji umre usled širenja sekundarne povrede daleko veći od broja neurona koji strada usled primarne povrede. Činjenica da se većina procesa u okviru sekundarne povrede odigrava relativno kasno (satima i danima nakon povrede) čini ih podložnim različitim terapeutskim intervencijama. Već decenijama je poznato da restrikcija hrane povoljno deluje na čitav organizam tako što odlaže starosno-zavisne fiziološke promene i smanjuje incidencu različitih obolenja (kancer, autoimunske bolesti, Parkinsonova i Alchajmerova bolest, itd.) Međutim, tek u poslednjih desetak godina intenzivno se istražuje uticaj smanjenog unosa hrane na procese oporavka nakon povrede. Dosadašnja istraživanja na ovom polju su pokazala da restrikcija hrane u trajanju od nekoliko meseci pre povrede CNS-a ima neuroprotektivno dejstvo i promoviše funkcionalni oporavak u nekoliko različitih modela povrede..." ]
[ "Traumatic brain injury (TBI) represents a brain tissue injury caused by mechanical head injury. TBI is one of the leading causes of death and disability in the world human population, up to 45 years of age. Consequences of brain injury depend on the location and amount of brain tissue damage, and can range from mild motor and cognitive impairment, to severe forms of disability and death. Traumatic brain injury leads to impairment of blood-brain barrier, resulting in a precisely defined sequence of events in injured CNS tissue. Two main phases could be distinguished: acute phase, which is called the primary injury that occurs by direct action of mechanical forces on the brain tissue and occurs at the time of injury. The events that followed thereafter are called the secondary injury. Secondary injury occurs as a result of the initial damage, and includes the processes that lead to further tissue damage in the days and weeks following injury. These are primarily inflammatory processes that lead to the death of neurons that initially were not affected by mechanical injury. It is believed that the neuronal cell death caused by secondary injury is far greater than the one caused by primary injury. The fact that most of the processes within the secondary injury occur relatively late (hours and days following injury) makes them subject to various therapeutic interventions. For decades, it is known that food restriction has a beneficial effect on the entire organism by delaying age-dependent physiological changes and reducing the incidence of various diseases (cancer, autoimmune disease, Parkinson's and Alzheimer's, etc). However, only in the last ten years has been to investigate the influence reduced food intake in the recovery process following injury. Previous research in this field has shown that several months long food restriction prior to CNS injury has neuroprotective effects and promotes functional recovery in several different models of injury..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173056/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Povreda mozga", "moždana kora", "dijetalna restrikcija", "pacov" ]
[ "Brain injury", "cerebral cortex", "dietary restriction", "rat" ]
[ "Uticaj restriktivnog režima ishrane na plastičnost neurona i glije nakon povrede senzomotorne kore mozga pacova", "Effect of dietary restriction on meuronal and glial plasticity following injury to the rat somatosensory cortex" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Каназир, Селма; Недељковић, Надежда; Руждијић, Сабера; Перовић, Милка; Пешић, Весна; Лончаревић-Васиљковић, Наташа; Утицај рестриктивног режима исхране на пластичност неурона и глије након повреде сензомоторне коре мозга пацова; Утицај рестриктивног режима исхране на пластичност неурона и глије након повреде сензомоторне коре мозга пацова;
[ "https://nardus.mpn.gov.rs/bitstream/id/1894/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1894/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2042" ]
10.2298/bg20120928loncarevic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2055
123456789-2055.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3372/bdef:Content/download
no
Paleoekologija karbonskih drvenastih prečica reda Lepidodendrales sa posebnim osvrtom na region Balkanskog poluostrva
Paleoecology of carboniferous arboreous Lycopsids from order Lepidodendrales with special consideration of region of Balkan peninsula
[ "Stevanović, Vladimir" ]
[ "Stevanović, Branka", "Sudar, Milan", "Kolar-Jurkovšek, Tea" ]
Đorđević-Milutinović, Desa Đ.
2016-01-05T11:46:14
[ "2016-01-05T11:46:14", "2020-07-03T08:08:55" ]
2012-10-02
[ "https://nardus.mpn.gov.rs/handle/123456789/2055", "http://eteze.bg.ac.rs/application/showtheses?thesesId=62", "https://fedorabg.bg.ac.rs/fedora/get/o:3372/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41904911" ]
[ "Tokom perioda karbona, od pre 320 do pre 306 mliona godina, u području tropskog pojasa (paleoekvatora) Evroameričkog kopna, razvijale su se močvarne šume čiji su edifikatori bile drvolike prečice reda Lepidodendrales. Prečice generalno pripadaju razdelu Lycopodiophyta i predstavljaju jednu od najstarijih grupa biljaka, čija evolutivna linija traje sve do današnjih dana. Njihovi najstariji predstavnici Asteroxylon, .Drepanophycus i Baragwanathia pojavili su se pre oko 400 miliona godina i spadaju u grupu prvih kopnenih biljaka. Pored toga Lycopodiophyta su evolitivno bile i prve biljke koje su formirale fanerofitnu životnu formu (rodovi Cyclostigma i Archaeosigillaria u gornjem devonu pre 370 miliona godina). Tokom karbona, drvolike prečice su dostigle svoj maksimalan razvoj. U to vreme veliki prostori paleotropskog pojasa bili su prekriveni močvarnim šumama u kojima su dominirale Lycopodiophyta čija su stabla prevazilazila 40 metara visine. Najveći broj karbonskih prečica pripadao je redu Lepidodendrales i rodovima Lepidodendron, Synchysidendron, Diaphorodendron, Lepidophloios i Sigillaria. Krajem karbona, pre oko 300 miliona godina sve drvolike prečice su izumrle, i koliko je za sada poznato, u okviru ovog razdela više se nisu pojavljivale drvolike životne forme. Danas predstavnici Lycopodiophyta predstavljaju marginalnu grupu biljaka, minorne uloge i značaja u okviru različitih vegetacija, čiji predstavnici (Lycopodium, Selaginella, Isoetes i dr.) nemaju gotovo nikakvih morfoloških sličnosti sa predstavnicima iz reda Lepidodendrales. Najveći deo uporedne analize izmedju Lepidodendrales i recentne denroflore bio je baziran prvenstveno na principima aktuelizma i zakonitostima koje se javljaju prilikom fosilizacije biljaka. Aktuelističke metode su primenjene zato što je utvrdjeno da postoje bazične sličnosti u razvoju vegetacija gornjeg karbona i neogena/kvartara. Tu prvenstveno treba pomenuti pojedine uticaje/dogadjaje koji su doveli do formiranja i diferenciranja različitih vegetacijskih pojaseva, kao što su pojava Karbonskog i Pleistocenskog ledenog doba, nastanak intenzivnih orogeneza (Hercinsko/Varscinska i Alpijska), formiranje sličnih močvarnih staništa, postojanje tropskog vegetacijskog pojasa, kao i činjenica da su karbonske kao i neogene močvarne šume ostavile za sobom izrazito velike količine uglja. Paleotropske šume u kojima su dominirale drvolike prečice reda Lepidodendrales predstavljaju izuzetno značajnu i na osnovu fosila veoma dobro dokumentovanu šumsku vegetaciju čiji se kompleksni ekološki značaj može sagledati u sledećem: 1. Neobnovljivi energetski resursi sadržani u ogromnim količinama karbonskog uglja koji je nastao uglavnom od stabala Lepidodendrales. 2. Konvergentne morfo-anatomske karakteristike sa filogenetski udaljenim kopnenim (vaskularnih) semenim biljakama (drvoliki habitus, tipovi grananja, strukture slične semenima, pojava monokarpije). To ukazuje da su se mnoge krakteristike biljaka, kao i životne forme (u ovom slučaju fanerofitna) pojavljivale nezavisno i više puta u filogenetski udaljenim evolutivnim linijama. 3. Tek sa formiranjem i razvojem bujnih paleotropskih šuma došlo je, zahvaljujući povoljnoj šumskoj mikroklimi, pogodnim staništima i gotovo neograničenom izvoru hrane, do ubrzanog razvoja kopnenih životinja. U cilju objašnjenja razvoja i dinamike ovih šuma analizirane su paleoekološke osobine pojedinih rodova koji su bili njihovi edifikatori. Kao referentni rodovi uzeti su oni za koje postoji najviše fosilnih i literaturnih podataka i koji su već ranije utvrdjeni kao morfotipovi, kao što su Lepidodendron, Synchysidendron, Diaphorodendron, Lepidophloios i Sigillaria. Ovi rodovi su svojim morfoanatomskim karakteristikama, prvenstveno opštim izgledom habitusa, tipom grananja, visinom stabala i odlikama korenskog sistema uporedjivani sa strukturnim karakterisitkama recetnih predstavnika dendroflore, pre svega sa drvećem i drvenastim semenim biljkama. Na osnovu pojave i uloge sličnih ili različitih morfo-anatomskih karakteristka kod ispitivanih fosilnih Lepidodendrales i referentnih predstavnika recentne dendroflore utvrdjene su brojne konvergetne strukturne karakteristike koje objašnjavaju paleoekološki karakter i značaj izumrlih Lepidodendrales. Prilikom analize opšteg izgleda habitusa i visine stabala utvrdjeno je da su monokarpne vrste, posebno rod Lepidodendron, mogle da budu visoke i preko 40 m (koliko je za sada utvrdjena najveća visina ovog roda), što ukauje da su neki predstavnici Lepidodendrales visinom približavali recentnim četinarima, odnosno da su bili viši od mnogih današnjih drvenastih cvetnica. Konstatovane su analogne heteroblastične i monokarpne odlike vegetativnih i reproduktivnih adultnih stadijuma predstavnika drevnih rodova Lepidodendron, Synchysidendron i Lepidophloios i recentnih monokarpnih vrsta iz familija Agavaceae, Bromelidaceae i Asteraceae. Monokarpni Lepidodendrales pokazuju određenu sličnost sa nekim džinovskim rozetastim (zeljastim) monokarpnim vrstama roda Agave koje upadljivo, heteroblastično, menjaju izgled habitusa tokom reproduktivnog stadijuma. Pored toga, monokarni predstavnici Lepidodendrales se opstajanjem na staništu i posle reproduktivne faze mogu porediti sa drvenastim monokarpnim vrstama roda Tachigali kod kojih nema heteroblastičnih promena, ali koje se, takođe zadržavaju na staništu još izvesno vreme posle reproduktivne faze, obezbedjujući svojim stablom prostor mladim jedinkama iste vrste. Uočena je i sličnost heteroblastičnih promena tokom smenjivanja vegetativnog u reproduktivni stadijum kod Lepidodendrales i prelaza iz juvenilnog u adultni stadijum recentnih polikarpnih vrsta roda Pseudopanax. Uporedne analize bazirane na gradji i ulozi listova i lisnih jastučića dovele su do zaključka da su listovi Lepidodendrales, koji periodično opadaju ostavljajući za sobom lisne baze (lisne jastučiće), jedinstvena karakteristika reda Lepidodendrales i da se ne mogu definitivno porediti sa recentnim biljkama. Nasuprot tome, postoje izvesne analogne morfološke odlike osnovnih delova lista, pre svega lisne ploče i ligule Lepidodendrales i nekih recentnih biljaka. Na poprečnom preseku lisna ploča Lepidodendrales slična je lisnoj ploči nekih vrsta roda Pinus iz grupe Diploxylon, odnosno vrstama iz grupe Haploxylon. Donekle se i ligula Lepidodendrales može porediti sa ligulom kod familije Poaceae, pre svega u pogledu sličnog položaja - u pazuhu lista, tj na prelazu lisne sare u lisnu ploču. Rizomorfni ili korenski sitem Lepidodendrales označen kao stigmarija (rod Stigmaria) može se uporediti sa korenovima nekih drvenastih recentnih biljaka sa vlažnih i močvarnih staništa. Naime, može se pretpostaviti da su bočni korenski izdanci stigmarija imali aeracionu ulogu slično pneumatoforama na korenovima današnjih vrsta iz rodova Taxodium, Nyssa, ili mangrova vegetacija (Rhizophora spp.). Na osnovu velikog broja fosilnih ostataka zaključeno je da su stigmarije bile površinski organi ili površinski deo korenskog sistema čiji se podzemni deo, poput drugih podzemnih biljnih organa, nije sačuvao u fosilnom obliku. U doktorskoj disertaciji je obavljena i uporedna analiza paleotropskih šuma Lepidodendrales i odgovarajućih recentnih šumskih zajednica. Utvrdjeno je da paleotropske šume najviše sličnosti pokazuju sa suptropskim močvarnim šumama u kojima dominira močvarni četinar Taxodium spp. Obe ove, vremenski veoma udaljene, zajednice odlikuje slično močvarno stanište, kao i sličan nasumičan raspored i opšti izgled edifirkatorskih vrsta, najveći deo fitomase se nalazi u stablu, dok je veličina krošnji zanemarljiva. Paleotropske močvarne šume se mogu porediti i sa recentnim tropskim kišnim šumama, pre svega stoga što se obe zajednice razvijaju u uslovima vlažne tropske klime. Međutim, mora se uzeti u obzir da struktura recentnih tropskih šuma daleko složenija zahvaljujući raznovrsnim životnim formama koje su razvile različite vrste cvetnica. Diskutovana je i izvesna analogija paleotropskih šuma Lepidodendrales i borealnih četinarskih šuma - tajgi, koja se ogleda u maloj taksonomskoj raznovrsnosti i malom broju edifikatorskih vrsta. U disertaciji su po prvi put iscrpno komentarisana dosadašnja istraživanja Lepidodendrales na Balkanskom poluostrvu. Na osnovu dostupnih podataka florističkih spiskova i paleofitocenoloških podataka većeg broja različitih paleotropskih zajednica Lepidodendrales na području zapadnog i centralnog Balkana, na teritoriji današnjih država Slovenije, Bosne i Hercegovine i Srbije, uradjena je rekonstrukcija mogućeg/pretpostavljenog staništa odgovarajućih paleofitocenoza." ]
[ "During the Carboniferous period, 320-306 million years ago, swamp forests with tree-like lycopsids named Lepidodendrales as edificatory species have developed in the region of tropical belt (paleoequator). The lycopsids belong to the general division of Lycopodiophyta, representing one of the oldest plant groups, and their evolution continues to this day. The oldest lycopsids have appeared about 400 million years ago and their representatives from genera Asteroxylon, Drepanophycus and Baragwanathia belong to the group of first land plants. Lycopodiophyta were also the first land plants to form the phanerophyte life form (genera Cyclostigma and Archaeosigillaria in Upper Devonian, 370 million years ago). During the Carboniferous period, the arboreous lycopsids have reached their maximal development. At that time there were large areas of paleotropical belt covered in swamp forests, where the edificatory species were Lycopodiophyta over 40 m tall. The Carboniferous arboreous lycopsids belonged to order Lepidodendrales and genera Lepidodendron, Synchysidendron, Diaphorodendron, Lepidophloios and Sigillaria. By the end of Carboniferous (about 300 million years ago) all the arboreous lycopsids became extinct, and according to present knowledge the tree-like life forms never appeared again in this group. Today the representatives of Lycopodiophyta are a marginal group of plants, with a minor role and importance in various vegetation lists. Their representatives (Lycopodium, Selaginella, Isoetes etc.) have almost no morphological similarities with the arboreous lycopsids of order Lepidodendrales. The comparative analysis of Lepidodendrales and the recent dendroflora was mostly based on principles of actualism and rules of plant fossilization. The actualistic methods were applied as some basic similarities were noted in development of vegetation in Upper Carboniferous and Neogene/Quaternary. It is particularly important to mention certain factors/events that led to formation and differentiation of different vegetation belts. They include appearance of Carboniferous and Pleistocene Ice Ages, appearance of intensive orogeny (Hercynian/Variscan and Alpine), formation of similar wetland habitats, presence of a tropical vegetation belt, as well as the fact that Carboniferous and Neogene swamp forests have both left behind prominent large amounts of coal. The paleotropical forests dominated by tree-like lycopsids of order Lepidodendrales are representative of particularly important forest vegetation, well-documented by fossils. Its complex ecological importance may be summed in a following way: 1. Unsustainable energetic resources of enormous amounts of Carboniferous coal, mostly originating from stems of Lepidodendrales. 2. Morpho-anatomic characteristics convergent with those of phylogenetically distant land (vascular) seed plants (tree-like habit, branching types, seed-like structures, appearance of monocarpy). This indicates that many of the plant characteristics and life forms (in this case phanerophytes) have appeared independently several times in phylogenetically distant evolutionary lines. 3. The accelerated development of land animals took place only after the formation and development of lush paleotropical forests and appearance of favorable forest microclimates, suitable habitats and almost infinite sources of food. In order to explain development and dynamics of these forests, paleoecological characteristics of certain edificatory genera were analyzed. The reference genera were chosen by number of fossil and literature data and by being previously determined as morphotypes, for example Lepidodendron, Synchysidendron, Diaphorodendron, Lepidophloios and Sigillaria. These genera were compared with structural characteristics of recent representatives of dendroflora, primarily trees and woody seed plants, regarding the general habit, type of branching, height of habit/stem and characteristics of root system. Appearance and role of similar or different morpho-anatomical characteristics in studied fossil Lepidodendrales and referenced representatives of recent dendroflora were used to determine numerous convergent structural characteristics explaining the paleoecological character and importance of extinct Lepidodendrales During the analysis of general habit and height of trees, it was determined that the monocarpous species, particularly the genus Lepidodendron, could reach over 40 m in height (that is the greatest determined height of this genus so far), indicating that certain representatives of Lepidodendrales could reach the height of recent conifers and were taller than many present-day arboreous flowering plants. Analogous heteroblastic and monocarpous characteristics of vegetative and reproductive adult stages were recorded in representatives of ancient genera Lepidodendron, Synchysidendron and Lepidophloios and in recent monocarpous species from families Agavaceae, Bromelidaceae and Asteraceae. The monocarpous Lepidodendrales are showing certain similarities with some giant rosette-bearing (herbaceous) monocarpous plants of genus Agave, which have a pronounced heteroblastic change in habitus during the reproductive stage. As monocarpous representatives of Lepidodendrales remain in the habitat after the reproductive phase, they may also be compared with arboreous monocarpous species of genus Tachigali, which lack the heteroblastic changes but also remain in the habitat for some time after the reproductive phase, providing shelter for young individuals of its species with its stem. Also noted was similarity of heteroblastic changes during the shift from the vegetative to the reproductive stage in Lepidodendrales and shift from the juvenile to the adult stage in recent polycarpous species of genus Pseudopanax. The comparative analyses based on structure and role of leaves and leaf cushions led to conclusion that leaves of Lepidodendrales, periodically excised while leaving leaf bases (cushions) on the stem, are a unique characteristic of order Lepidodendrales and may not be definitively compared with recent plants. On the other hand, there are certain analogous morphological characteristics of main flower parts, primarily the leaf plate and ligula in Lepidodendrales and certain recent plants. The transversal cut of leaf plate of Lepidodendrales is similar to that of certain species of Pinus from Diploxylon group or species from Haploxylon group. The ligula of Lepidodendrales may be compared to some extent to ligula in family Poaceae, primarily due to the similar position – between the leaf and the stem, at the transition between the leaf sheath and blade. The rhizomorph or root system of Lepidodendrales named stigmaria (genus Stigmaria) may be compared with roots of certain recent woody plants from wetland and marsh habitats. It may be assumed that the lateral root shoots of stigmaria had a role in aeration, similar to pneumatophores in roots of present-day species from genera Taxodium, Nyssa, or mangrove vegetation (Rhizophora spp.). In relation to the large number of fossil remains it was concluded that stigmaria were aerial organs or aerial parts of root system, while the underground part, like many other underground plant organs, was not preserved in fossil form. The Ph.D. thesis also includes a comparative analysis of paleotropical forests of Lepidodendrales and corresponding recent forest associations. It was determined that the paleotropical forests show most similarities with the subtropical swamp forests dominated by swamp conifer Taxodium spp. Both these associations, although very distant from each other in time, are characterized by similar swamp soil and similar random distribution and general habitus of edificatory species – the greatest part of phytomass is situated in the bole while the canopy size is negligible. The paleotropical swamp forests may also be compared to the recent tropical rainforests, as both associations develop in conditions of humid tropical climate. However, it must be considered that the structure of recent tropical forest is far more complex due to diverse life forms developed by various species of flowering plants. Also discussed was certain analogy between the paleotropical forests of Lepidodendrales and boreal conifer forest (taiga), expressed in low taxonomic diversity and a small number of edificatory species. This dissertation is the first paper with detailed analysis of all studies on Lepidodendrales performed at Balkan Peninsula. The available data in floristic lists and paleophytocoenological data on a larger number of different paleotropical associations of Lepidodendrales in western and central parts of Balkans (the territories of present-day Slovenia, Bosnia-Herzegovina and Serbia) were used for reconstruction of possible/assumed habitat of appropriate paleophytocoenoses." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Lepidodendron", "Lepidophloios", "Sigillaria", "Diaphorodendron", "Synchyidendron", "karbon", "ugalj", "paleobotanika", "paleoekvator" ]
[ "Lepidodendron", "Lepidophloios", "Sigillaria", "Diaphorodendron", "Synchyidendron", "Carboniferous", "coal", "paleobotany", "paleoequator" ]
[ "Paleoekologija karbonskih drvenastih prečica reda Lepidodendrales sa posebnim osvrtom na region Balkanskog poluostrva", "Paleoecology of carboniferous arboreous Lycopsids from order Lepidodendrales with special consideration of region of Balkan peninsula" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Стевановић, Владимир; Судар, Милан; Стевановић, Бранка; Колар-Јурковшек, Теа; Ђорђевић-Милутиновић, Деса Ђ.; Палеоекологија карбонских дрвенастих пречица реда Лепидодендралес са посебним освртом на регион Балканског полуострва; Палеоекологија карбонских дрвенастих пречица реда Лепидодендралес са посебним освртом на регион Балканског полуострва;
[ "https://nardus.mpn.gov.rs/bitstream/id/1972/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1972/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2055" ]
10.2298/bg20121002djordjevicmilutinovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2046
123456789-2046.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2400/bdef:Content/download
no
Metabolička raznovrsnost bakterija izolovanih iz površinskog rečnog sedimenta pod uticajem petrohemijskih efluenata: Pseudomonas sp. tn301 kao proizvođač polihidroksialkanoata
Metabolic varsality of bacteria isolated from surgace river sediment influenced by petrochemical effluentes: the case of Pseudomonassp. TN301 as polyhydroxyalkanoate producer
[ "Nikodinović-Runić, Jasmina" ]
[ "Fira, Đorđe", "Fira, Đorđe", "Vasiljević, Branka" ]
Narančić, Tanja M.
2016-01-05T11:45:53
[ "2016-01-05T11:45:53", "2020-07-03T08:08:44" ]
2012-07-06
[ "https://nardus.mpn.gov.rs/handle/123456789/2046", "http://eteze.bg.ac.rs/application/showtheses?thesesId=41", "https://fedorabg.bg.ac.rs/fedora/get/o:2400/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41542415" ]
[ "Mono- i poliaromatična jedinjenja predstavljaju široko rasprostranjene zagađivače životne sredine. Ova jedinjenja veoma dugo opstaju u datoj sredini, a mnoga od njih imaju i toksična, kancerogena i mutagena svojstva. Sredine zagađene aromatičnim jedinjenjima su najčešće kontaminirane i teškim metalima, a odlikuju se i neravnotežnim odnosom esencijalnih nutrijenata. Sa druge strane, ovakve sredine su dobar izvor bakterija sa sposobnošću preživljavanja u izuzetno teškim uslovima. Cilj ovog rada je bila izolacija robustnih bakterija sa potencijalnom biotehnološkom aplikacijom iz sedimenata koji su pod uticajem petrohemijskih efluenata. Upotrebom dve različite strategije izolovanja, toplotnog pretretmana i medijuma za rast i sporulaciju Actinobacteria, i predobogaćivanja uzoraka naftalenom u kombinaciji sa odabirom brzo rastućih bakterija sa sposobnošću rasta na naftalenu kao jedinom izvoru ugljenika i energije izolovane su 34 Gram-pozitivne i 4 Gram-negativne bakterije. Izolati sa sposobnošću degradacije od 9 do 15 najčešćih aromatičnih polutanata poput benzena, bifenila i naftalena pripadali su rodovima Bacillus, Arthrobacter, Rhodococcus, Gordonia, Streptomyces, Staphylococcus, Actinobacteria, Sinorhizobium i Pseudomonas. Rhodococcus sp. TN105, Gordonia sp. TN103 i Arthrobacter sp. TN221 su identifikovani kao novi sojevi. Od 11 izolata sa sposobnošću rasta u prisustvu bar jednog od testiranih teških metala (živa, kadmijum, nikl) u 100 mM koncentracijama, 8 je imalo sposobnost degradacije 15 različitih aromatičnih jedinjenja. Rezistenciju na bar jedan od testiranih antibiotika pokazalo je 60% izolata. Međutim, nije primećena visoka učestanost multirezistencije na antibiotike. Trećina izolata je imala sposobnost da akumulira bar jedan od biopolimera. Dvanaest izolata, uglavnom pripadnika rodova Bacillus i Arthrobacter su akumulirali polifosfate, 3 Bacillus sp. izolata su akumulirala polihidroksibutirat (PHB), Pseudomonas sp. TN301 je akumulirao polihidroksialkanoate srednje duzine niza (mcl-PHA), dok su 4 Grampozitivna izolata akumulirala egzopolisaharide. U ovom radu je po prvi put pokazana sposobnost pripadnika roda Bacillus da konvertuju toluen u PHB. Pseudomonas sp. TN301 se istakao zbog svoje sposobnosti da akumulira mcl-PHA do 22% suve ćelijske mase iz poliaromatičnog jedinjenja naftalena. Razvijen je metod za dodavanje izrazito hidrofobnih poliaromatičnih jedinjenja u kultivacioni medijum. Najveća masa i najviši nivo akumuliranog mcl-PHA postignuti su dodavanjem sintetičkog surfaktanta Tweena 80 (0.5 g l-1). Pokazano je da Pseudomonas sp. TN301 ima sposobnost akumulacije mcl-PHA iz širokog opsega poli- i monoaromatičnih jedinjenja, kao i njihovih smeša. Ovaj rad predstavlja prvu sveobuhvatnu studiju metabolički raznovrsnih, u prvom redu Gram-pozitivnih bakterija sa velikim aplikacionim potencijalom u procesu bioremedijacije sredina zagađenih mešovitim polutantima, ali i sa drugim biotehnološkim aplikacijama kao sto je konverzija otpadnog materijala u biopolimere. U ovom radu je po prvi put pokazana sposobnost bakterijskog soja da konvertuje različita poliaromatična jedinjenja i njihove smeše u biodegradabilni polimer (mcl- PHA). S obzirom na to da ima odlike biodegradabilnog termoelastomera, mcl-PHAsve više dobija na važnosti, pa je izolacija novih sojeva sa sposobnošću njegove produkcije od izuzetnog značaja." ]
[ "Mono- and polyaromatic compounds are among the most prevalent and persistent pollutants in the environment. They have been reported as toxic, carcinogenic and mutagenic. Contaminated sites usually contain complex mixture of aromatic compounds and heavy metals, and are characterized by essential nutrients imbalance. On the other hand, polluted sites proved to be valuable sources of bacteria capable of surviving in these harsh environments. The aim of this study was to obtain robust bacteria with potential biotechnological application from the river sediments affected by the proximity of a petrochemical industrial site. Using two different isolation strategies, heat pretreatment and media for growth and sporulation of Actinobacteria and naphthalene enrichment combined with the selection of fast growing bacteria capable of using naphthalene as the sole source of carbon and energy, 34 Gram-positive and 4 Gram-negative bacterial strains were isolated. Isolates that were able to use 9 or more common aromatic pollutants, such as benzene, biphenyl, naphthalene etc. as a sole source of carbon and energy included members of Bacillus, Arthrobacter, Rhodococcus, Gordonia, Streptomyces, Staphylococcus, Actinobacteria, Sinorhizobium, and Pseudomonas genus. Rhodococcus sp. TN105, Gordonia sp. TN103 and Arthrobacter sp. TN221 were identified as novel strains. Out of 11 isolates able to grow in the presence of one or more metals (mercury, cadmium, nickel) at high concentration (100 mM), eight could degrade 15 different aromatic compounds. Antibiotic resistance to at least one of the tested antibiotics was found among 60% of the isolates. However, high incidence of multiresistance was not observed. One third of the isolates could accumulate at least one biopolymer. Twelve isolates (mainly Bacillus sp. and Arthrobacter sp.) accumulated polyphosphate, three Bacillus sp. accumulated polyhydroxybutyrate (PHB), and Pseudomonas sp. TN301 accumulated medium chain length polyhydroxyalkanoate (mcl-PHA), while four Gram-positive isolates could accumulate exopolysaccharides. This study is the first report of a Bacillus strain capable of converting toluene to PHB. Pseudomonas sp. TN301 was distinguished by its ability to accumulate mcl-PHA up to 22% of cell dry weight from the naphthalene. A method of supplying highly hydrophobic polyaromatic hydrocarbons to a culture medium was developed. The best biomass and mcl-PHA yields were achieved with the addition of synthetic surfactant Tween 80 (0.5 g l-1). It was shown that Pseudomonas sp. TN301 can accumulate mcl-PHA from a wide range of poly- and monoaromatic hydrocarbons, and mixtures thereof. This is the first comprehensive study on the metabolically diverse, primarily Grampositive bacteria with great application potential for mixed pollution bioremediation studies, as well as in other biotechnological applications such as waste conversion to biopolymers. Also, this is the first report of the ability of a bacterial strain to convert a range of polyaromatic hydrocarbon compounds to the biodegradable polymer (mcl- PHA). Mcl-PHA is gaining importance as a promising biodegradable thermoelastomer and therefore isolation of new producing strains is highly significant." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173048/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Monoaromatična jedinjenja", "poliaromatična jedinjenja", "biodegradacija", "bioremedijacija", "teški metali", "polifosfati", "egzopolisaharidi", "polihidroksibutirat", "polihidroksialkanoat", "Pseudomonas" ]
[ "Monoaromatic compounds", "polyaromatic hydrocarbons", "biodegradation", "heavy metals", "bioremediation", "polyphosphates", "exopolysaccharides", "polyhydroxybutyrate", "polyhydroxyalkanoate", "Pseudomonas" ]
[ "Metabolička raznovrsnost bakterija izolovanih iz površinskog rečnog sedimenta pod uticajem petrohemijskih efluenata: Pseudomonas sp. tn301 kao proizvođač polihidroksialkanoata", "Metabolic varsality of bacteria isolated from surgace river sediment influenced by petrochemical effluentes: the case of Pseudomonassp. TN301 as polyhydroxyalkanoate producer" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Никодиновић-Рунић, Јасмина; Васиљевић, Бранка; Фира, Ђорђе; Фира, Ђорђе; Наранчић, Тања М.; Метаболичка разноврсност бактерија изолованих из површинског речног седимента под утицајем петрохемијских ефлуената: Псеудомонас сп. тн301 као произвођач полихидроксиалканоата; Метаболичка разноврсност бактерија изолованих из површинског речног седимента под утицајем петрохемијских ефлуената: Псеудомонас сп. тн301 као произвођач полихидроксиалканоата;
[ "https://nardus.mpn.gov.rs/bitstream/id/1941/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1941/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2046" ]
10.2298/bg20120706narancic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2047
123456789-2047.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3494/bdef:Content/download
no
Florističko-ekološka analiza silikatnih algi (Bacillariophyta) reke Nišave i pritoka Jerme i Temske
Floristic-ecological analysis of (Bacillariophyta) from the Nišava river and tributaries Jerma and Temska rivers
[ "Krizmanić, Jelena" ]
[ "Cvijan, Mirko", "Simić, Snežana" ]
Andrejić, Jelena Z.
2016-01-05T11:45:54
[ "2016-01-05T11:45:54", "2020-07-03T08:08:46" ]
2012-12-06
[ "https://nardus.mpn.gov.rs/handle/123456789/2047", "http://eteze.bg.ac.rs/application/showtheses?thesesId=88", "https://fedorabg.bg.ac.rs/fedora/get/o:3494/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=42097935" ]
[ "Florističko-ekološka analiza silikatnih algi reke Nišave i pritoka Jerme i Temske realizovana je sa ciljem da se utvrdi floristički sastav i sezonska dinamika zajednice silikatnih algi i da se proceni kvalitet vode ovih reka na osnovu TDI (Trophic Diatom Index). Algološki materijal je sakupljan od maja 2008. godine do maja 2009. godine, na 11 lokaliteta u reci Nišavi i po jednom lokalitetu u rekama Jermi i Temskoj. Osnovni fizičko-hemijski parametri vode su mereni na svakom lokalitetu. Uzorci silikatnih algi su u laboratoriji tretirani jakim kiselinama, zatim zatopljeni u sintetičku smolu i posmatrani pod svetlosnim mikroskopom. Fizičko-hemijske analize vode reke Nišave ukazuju na povećanje koncentracije nutrijenata (amonijum jona, nitrata, nitrita) na lokalitetima posle Dimitrovgrada, Bele Palanke, Pirota i Niša. Izmerena vrednost pH vode na većini lokaliteta je u granici od 6 do 7. Ove vrednosti su niže od očekivanog slabo baznog karaktera vode za slivno područje Nišave. Analizom florističkog sastava u sve tri reke utvrđena su ukupno 194 taksona, svrstanih u 58 rodova. Taksonima najbrojniji rodovi su Navicula (24), Nitzschia (17) i Gomphonema (13). U reci Nišavi utvrđeno je 177 taksona, u Jermi 115 i u Temskoj 93. Dva taksona (Navicula novaesiberica i Neidiomorpha binodiformis) predstavljaju nove nalaze za floru silikatnih algi Srbije Sezonska dinamika silikatnih algi u Nišavi, Jermi i Temskoj i njihova procentualna zastupljenost u epilitnoj zajednici u ispitivanom periodu, zavise od koncentracije nutrijenata i temperature vode. Zapažamo smenu zajednica silikatnih algi. U prolećnoj sezoni dominiraju predstavnici roda Achnanthidium..." ]
[ "Floristic and ecological analysis of the diatoms from the Nišava River and tributaries Jerma and Temska Rivers was conducted to determine the floristic composition and seasonal dynamics of diatom communities as well as to evaluate the water quality of these rivers based on the TDI (Trophic Diatom Index). Algological material was collected from May 2008 until May 2009 at 11 sampling sites in the Nišava River and one site in the Jerma and Temska Rivers. Basic physico-chemical properties of the water were measured at each sampling site. In the laboratory diatom samples were treated with strong acids, then mounted in a synthetic medium and examined with a light microscope. Physico-chemical analysis of the water of the Nišava River indicated an increase in nutrient concentration (ammonium ions, nitrate, nitrite) at sites located downstream of Dimitrovgrad, Bela Palanka, Pirot and Niš cities. The majority of sampling sites had pHs that ranged from 6 to 7. These pHs were lower than the weakly alkaline values expected for the Nišava River catchment area. Analysis of the floristic composition of the three rivers determined a total of 194 taxa grouped in 58 genera. The genera with the most numerous taxa were Navicula (24), Nitzschia (17) and Gomphonema (13). In total, 177 taxa were identified in the Nišava River, 115 in the Jerma River and 93 taxa in the Temska River. Two taxa (Navicula novaesiberica and Neidiomorpha binodiformis) were new findings for the Serbian diatom flora. The seasonal dynamics of diatoms in the Nišava, Jerma and Temska Rivers and their proportional representations in epilithic communities depended on the concentration of nutrients and water temperature. A seasonal shift of diatom communities was noticed. The spring season was dominated by taxa from the genus Achnanthidium..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Silikatne alge", "floristički sastav", "sezonska dinamika", "Nišava", "Jerma", "Temska", "TDI" ]
[ "Diatoms", "floristic composition", "seasonal dymanics", "Nišava", "Jerma", "Temska", "TDI" ]
[ "Florističko-ekološka analiza silikatnih algi (Bacillariophyta) reke Nišave i pritoka Jerme i Temske", "Floristic-ecological analysis of (Bacillariophyta) from the Nišava river and tributaries Jerma and Temska rivers" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Кризманић, Јелена; Симић, Снежана; Цвијан, Мирко; Aндрејић, Јелена З.;
[ "https://nardus.mpn.gov.rs/bitstream/id/1945/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1945/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2047" ]
10.2298/bg20121206andrejic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2059
123456789-2059.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3463/bdef:Content/download
no
Alelopatski efekti transformisanih korenova Chenopodium murale L. in vitro
Allelopathic effects of Chenopodium murale L. hairy roots in vitro
[ "Ninković, Slavica" ]
[ "Sabovljević, Aneta", "Mitić, Nevena", "Simonović, Ana", "Maksimović, Vuk" ]
Dmitrović, Slavica S.
2016-01-05T11:46:16
[ "2016-01-05T11:46:16", "2020-07-03T08:08:58" ]
2012-10-02
[ "https://nardus.mpn.gov.rs/handle/123456789/2059", "http://eteze.bg.ac.rs/application/showtheses?thesesId=72", "https://fedorabg.bg.ac.rs/fedora/get/o:3463/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41901071" ]
[ "Korenov sistem C. murale produkuje i luči hemijske materije koje imaju alelopatsku aktivnost. Proučavanje efekata na druge organizme, kao i izolovanje i karakterizacija metabolita koji su izlučeni iz korenova u zemljište je veoma kompleksan proces. Zbog toga je cilj ovog istraživanja bio uspostavljanje kulture transformisanih korenova C. murale in vitro, kao novog sistema pogodnog za izučavanje alelopatskog efekta. Transgeni korenovi su indukovani pomoću Agrobacterium rhizogenes A4M70GUS na eksplantatima korenova, kotiledona, listova i internodija klijanaca C. murale. Eksplantati korenova su imali najveću efikasnost transformacije (11,1%). Uspostavljeni su klonovi transformisanih korenova različite morfologije i potencijala rasta koji se gajenjem (subkultivisanjem) u tečnom MS medijumu održavaju više od dve godine. Potvrda transformacije ovih klonova je urađena pomoću PCR, RT–PCR i histohemijske GUS analize. Nije ustanovljena razlika u prisustvu rol gena među klonovima. Ispitivan je alelopatski efekat tečnih medijuma u kojima su rasli transformisani i netransformisani korenovi C. murale (fitotoksični medijum) na klijanje i rast klijanaca test biljaka arabidopsisa (Arabidopsis thaliana (L.) Heynh), pšenice (Triticum aestivum L.) i salate (Lactuca sativa L.). Kod sve tri test biljke ustanovljen je inhibitorni efekat na klijanje semena i rast klijanaca. Klonovi transformisanih klonova: R1 i R8, imali su najveći alelopatski potencijal. Kod test biljaka arabidopsisa i pšenice, koje su bile tretirane fitotoksičnim medijumima, praćena je ukupna aktivnost antioksidativnih enzima – katalaza, peroksidaza i superoksid dismutaza (spektrofotometrijski), kao i zastupljenost i aktivnost pojedinih izoformi navedenih enzima (elektroforetski). Aktivnost ovih enzima (izuzev katalaza kod arabidopsisa) bila je povećana kod klijanaca isklijavanih i gajenih na fitotoksičnim medijumima, što je u skladu sa aktiviranjem odbrambenih mehanizama u biljkama kada se one bile izlažu stresu (fitotoksinima, tj. alelohemikalijama). Fitotoksični medijumi različitih klonova transformisanih korenova dovodili su do različitog nivoa povećanja aktivnosti katalaza, peroksidaza i superoksid dismutaza kod različitih test biljaka..." ]
[ "Root system produces and releases chemical compounds with allelopathic activity. Isolation and characterization of these metabolites, as well as investigation of their effects on other organisms, are very complicated processes. The aim of the present study was to initiate and establish Chenopodium murale L. transgenic hairy root in vitro culture system, as a new tool for allelopathic assays. Transgenic hairy roots were induced by Agrobacterium rhizogenes A4M70GUS from roots, cotyledons, leaves and internodes of C. murale seedlings. Roots were found to be the best target explants, providing transformation efficiency of up to 11.1%. Established 13 hairy root clones differed in their morphology and growth potential. The liquid culture system of characterized hairy root clones was maintained for over two years. Molecular characterization of these clones was carried out by PCR, RT-PCR and histochemical GUS analyses. No differences in rol gene presence were observed. We investigated allelopathic effect of wild-type and hairy root growth media (phytotoxic media) against germination and seedling development of Arabidopsis thaliana (L.) Heynh, wheat (Triticum aestivum L.) and lettuce (Lactuca sativa L.) test plants. The inhibitory potential varied depending on the test plant and hairy root clone. R1 and R8 clones had strong allelopathic effects. These results revealed that hairy roots as an independent system synthesize some bioactive substances with allelopathic activity and exude them into the growth medium. In test plants A. thaliana and wheat, after treatment with phytotoxic media, activity of different antioxidative enzymes (catalase, peroxidase and superoxide dismutase) were analyzed spectrophotometrically and electrophoretically. Activities of these antioxidative enzymes were higher in comparison to the control, except the catalase activity in A. thaliana, which was the same or lower. Phytotoxic media from different hairy root clones cause different changes in activities of catalases, peroxidases and superoxide dismutases in test plants..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Agrobacterium rhizogenes", "alelopatija", "antioksidativni enzimi", "Chenopodium murale", "fenolne kiseline", "genetička transformacija", "geni ćelijskog ciklusa", "hairy roots", "qPCR", "rol geni" ]
[ "Agrobacterium rhizogenes", "allelopathy", "antioxidant enzyme", "Chenopodium murale L.", "phenolic acids", "genetic transformation", "cell cycle-related genes", "hairy roots", "qPCR", "rol genes" ]
[ "Alelopatski efekti transformisanih korenova Chenopodium murale L. in vitro", "Allelopathic effects of Chenopodium murale L. hairy roots in vitro" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Нинковић, Славица; Сабовљевић, Aнета; Симоновић, Aна; Максимовић, Вук; Митић, Невена; Дмитровић, Славица С.; Aлелопатски ефекти трансформисаних коренова Цхеноподиум мурале Л. ин витро; Aлелопатски ефекти трансформисаних коренова Цхеноподиум мурале Л. ин витро;
[ "http://nardus.mpn.gov.rs/bitstream/id/1984/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1984/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2059" ]
10.2298/bg20121002dmitrovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2056
123456789-2056.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3473/bdef:Content/download
no
Uticaj elektromagnetnog polja (0,5 mT, 50 Hz) na motorno ponašanje, parametre oksidativnog stresa i morfološke karakteristike mozga nakon eksperimentalno izazvane moždane ishemije na modelu pustinjskog miša
Influence of electromagnetic field (0,5mT, 50 Hz) on motor behaviour, oxidative stress parameters and morphological characteristicsof brain after global cerebral ischemia in mongolian gerbils
[ "Janać, Branka" ]
[ "Radenović, Lidija", "Selaković, Vesna", "Prolić, Zlatko", "Manojlović-Stojanoski, Milica" ]
Rauš, Snežana
2016-01-05T11:46:15
[ "2016-01-05T11:46:15", "2020-07-03T08:08:56" ]
2012-11-07
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=75", "https://nardus.mpn.gov.rs/handle/123456789/2056", "https://fedorabg.bg.ac.rs/fedora/get/o:3473/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41902351" ]
[ "današnje vreme, jedna od najčešćih bolesti koja pogaña celokupno društvo je moždani udar, koji može biti uzrokovan moždanom ishemijom. Osim što u velikom procentu dovodi do smrti, posledice moždanog udara su najčešće trajne i za njih ne postoji efikasna terapija. Još jedna karakteristika modernog doba je razvitak elektronske industrije i primena sve raznovrsnijih električnih ureñaja, a samim tim i povećanje stepena zagañenja “elektromagnetnim smogom”. Povećano prisustvo niskofrekventnih elektromagnetnih polja (EMP) je privuklo interesovanje velikog broja naučnika te su ispitivani njegovi efekti, izmeñu ostalog i na funkcionalne karakteristike centralnog nervnog sistema. Na osnovu poznatih činjenica o njegovom dejstvu možemo pretpostaviti da ovo polje utiče i na razvoj patofizioloških dogañaja i oporavak u uslovima moždane ishemije. Cilj naše studije je bio da ispitamo da li elektromagnetno polje (0,5 mT, 50 Hz, u trajanju od 7 dana) utiče na hipermotorno ponašanje pustinjskih miševa izazvano 10-min globalnom moždanom ishemijom i to 1., 2., 4. i 7. dana (neposredan efekat EMP), kao i 14. dana nakon reperfuzije (odloženi efekat EMP). Takoñe, na modelu moždane ishemije smo ispitali da li primenjeno EMP utiče na parametre oksidativnog stresa, koji su inače povišeni nakon moždane ishemije, u pojedinim regionima mozga 7. i 14. dana nakon reperfuzije. Praćen je i uticaj EMP na morfološke promene u najosetljivijim strukturama mozga (hipokampus, striatum i kora velikog mozga) izazvane ishemijom 7. i 14. dana..." ]
[ "Nowadays, one of the most common diseases, which affect the whole society, is brain stroke, which can be caused by cerebral ischemia. Beside high mortality rate, consequences of brain stroke are often permanent without appropriate treatment. Another hallmark of modern society is development of electronic industry and usage of diverse electron devices, therefore increasing degree of pollution with “electromagnetic smog”. The increased presence of extremely low frequency magnetic fields (ELF-MF) has attracted the interest of many scientists to explore its effects, among others, on functional properties of central nervous system. Based on the known facts of its action, we can propose that this field affects development of pathophysiological events and recovery in conditions like cerebral ischemia. The purpose of this study was to determine whether ELF-MF (0.5 mT, 50 Hz, continuous exposue during 7 days) affects hypermotor activity of gerbils, induced by 10-min global cerebral ischemia on the 1st, 2nd, 4th and 7th day (immediate effect) as well as on the 14th day after reperfusion (delayed effect). Also, on this model we examined whether applied ELF-MF affect oxidative stress parameters, otherwise increased after cerebral ischemia, in some brain regions on the 7th and 14th reperfusion day. Also, we examined effect of ELF-MF on morphological changes in the most vulnerable structures of brain (hippocampus, striatum and forebrain cortex) induced by ischemia on the 7th and 14th reperfusion day, as well as performed quantification of this changes in neurons and glial cells. Animal behaviour was monitored for 60 min in the open field. It was shown that the 10-min global cerebral ischemia per se induced a significant..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173027/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "moždana ishemija", "elektromagnetno polje", "motorno ponašanje", "oksidativni stres", "morfologija" ]
[ "cerebral ischemia", "electromagnetic field", "motor behaviour", "oxidative stress", "morphology" ]
[ "Uticaj elektromagnetnog polja (0,5 mT, 50 Hz) na motorno ponašanje, parametre oksidativnog stresa i morfološke karakteristike mozga nakon eksperimentalno izazvane moždane ishemije na modelu pustinjskog miša", "Influence of electromagnetic field (0,5mT, 50 Hz) on motor behaviour, oxidative stress parameters and morphological characteristicsof brain after global cerebral ischemia in mongolian gerbils" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Јанаћ, Бранка; Селаковић, Весна; Пролић, Златко; Манојловић-Стојаноски, Милица; Раденовић, Лидија; Рауш, Снежана; Утицај електромагнетног поља (0,5 мТ, 50 Хз) на моторно понашање, параметре оксидативног стреса и морфолошке карактеристике мозга након експериментално изазване мождане исхемије на моделу пустињског миша; Утицај електромагнетног поља (0,5 мТ, 50 Хз) на моторно понашање, параметре оксидативног стреса и морфолошке карактеристике мозга након експериментално изазване мождане исхемије на моделу пустињског миша;
[ "https://nardus.mpn.gov.rs/bitstream/id/1976/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1976/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2056" ]
10.2298/bg20121107raus
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2048
123456789-2048.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2444/bdef:Content/download
no
Моlеkulаrnа dеtеkciја i gеnоtipizаciја sојеvа pаrаzitа Toxoplasma gondii izоlоvаnih u Srbiјi
Molecular detection and genotyping of Toxooplasma gondiistrains isolated in Serbia
[ "Ivović, Vladimir" ]
[ "Savić-Pavićević, Dušanka", "Đurković-Đaković, Olgica" ]
Vujanić, Marija
2016-01-05T11:45:56
[ "2016-01-05T11:45:56", "2020-07-03T08:08:51" ]
2012-07-09
[ "https://nardus.mpn.gov.rs/handle/123456789/2048", "http://eteze.bg.ac.rs/application/showtheses?thesesId=45", "https://fedorabg.bg.ac.rs/fedora/get/o:2444/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41539087" ]
[ "Тоksоplаzmоzа, оbоlјеnjе kоје izаzivа pаrаzit Toxoplasma gondii, јеdnа je оd nајrаsprоstrаnjеniјih zооnоzа u svеtu, i prоcеnjuје sе dа је čаk јеdnа trеćinа čоvеčаnstvа inficirаnа оvim pаrаzitоm. Iаkо sеrоlоški tеstоvi prеdstаvlјајu primаrnu mеtоdu u rutinskој diјаgnоstici tоksоplаzmоzе, intеrprеtаciја rеzultаtа sеrоlоških аnаlizа u nеkim kliničkim slučајеvimа mоžе biti kоmplikоvаnа i dugоtrајnа, а nеrеtkо i nеdоvоlјnо infоrmаtivnа. Zbоg tоgа је uvоđеnjе mоlеkulаrnih mеtоdа kоје inаčе оdlikuје vеlikа оsеtlјivоst i pоmоću kојih је mоgućе dоbiti rеzultаtе u krаtkоm vrеmеnskоm pеriоdu, оd vеlikоg znаčаја zа diјаgnоstiku tоksоplаzmоzе. Оtudа је cilј оvоg istrаživаnjа biо uvоđеnjе mоlеkulаrnе diјаgnоstikе tоksоplаzmоzе pо prvi put u Srbiјi, kао i gеnоtipizаciја izоlоvаnih sојеvа T. gondii. Оvоm studiјоm је оbuhvаćеnо 160 uzоrаkа pоrеklоm оd 127 pаciјеnаtа sеrоlоški suspеktnih nа tоksоplаzmоzu, kоd kојih је prisustvо T. gondii аnаlizirаnо PCR-оm u rеаlnоm vrеmеnu i biоlоškim оglеdоm. Pоkаzаnо је dа uspеšnоst dоkаzivаnjа DNK T. gondii u mаtеriјаlu humаnоg pоrеklа zаvisi kаkо оd tipа mаtеriјаlа tаkо i оd ukupnе zаprеminе mаtеriјаlа оd kојеg sе uzimа uzоrаk. Таkо је PCR u rеаlnоm vrеmеnu biо pоzitivаn u 30,8% uzоrаkа pеrifеrnе krvi, u 33,3% uzоrаkа krvi iz pupčаnikа, u 35,7% uzоrаkа plоdоvih vоdа, u 57,1% uzоrаkа likvоrа i u 60% uzоrаkа оčnih vоdicа. U оdnоsu nа izоlаciјu pаrаzitа biоlоškim оglеdоm, pоkаzаnа је znаtnо višа stоpа dеtеkciје DNK T. gondii, i tо i u uzоrcimа krvi оd pаciјеnаtа suspеktnih nа аkutnu tоksоplаzmоzu tаkо i u оnimа pоrеklоm оd fеtusа i nоvоrоđеnčаdi suspеktnih nа kоngеnitаlnu tоksоplаzmоzu. Dоbiјеni rеzultаti ukаzuјu prе svеgа nа vеliki pоtеnciјаl i prаktični znаčај mоlеkulаrnе diјаgnоstikе kао i nа pоtrеbu uvоđеnjа оvе mеtоdе kао dеlа stаndаrdnоg prоtоkоlа zа diјаgnоstiku tоksоplаzmоzе..." ]
[ "Toxoplasmosis, infection caused by the parasite Toxoplasma gondii, is one of the most widespread zoonoses in the world and it has been estimated that up to one third of the global human population is infected with this parasite. Although serological tests are the primary method in the routine diagnosis of toxoplasmosis, interpretation of the results can be not only difficult and time-consuming, but they can be inconclusive. Therefore, the introduction of highly sensitive molecular methods, by which results can be obtained within a day, into the diagnosis of toxoplasmosis is of great importance. The aim of this research was the introduction of molecular methods into the diagnosis of toxoplasmosis for the first time in Serbia, as well as genotypization of the isolated T. gondii strains. This study included 160 human biological samples from 127 patients serologically suspected of toxoplasmosis in which the presence of T. gondii was analyzed by PCR and by bioassay in mice. It was found that the detection of T. gondii DNA in human biological materials depends on the type of sample as well as on the initial volume. Real-time PCR was positive in 30.8% of peripheral blood samples, 33.3% of cord blood samples, 35.7% of amniotic fluid samples, 57.1% of CSF samples and 60% of humor aqueous samples. The detection rate of T. gondii by molecular methods was higher than by bioassay, in both blood samples from adults suspected of acute toxoplasmosis and samples from fetuses and newborns suspected of congenital toxoplasmosis. The results of this study emphasize the huge practical importance and potential of molecular diagnostics and show the benefit of introducing this method as part of the standard protocol for the diagnosis of toxoplasmosis..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41019/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Toxoplasma gondii", "tоksоplаzmоzа", "diјаgnоstikа", "mоlеkulаrnа dеtеkciја", "PCR", "PCR-RFLP", "humаni mаtеriјаl", "glоdаri", "gеnоtipizаciја", "sојеvi", "pаrаzitа" ]
[ "Toxoplasma gondii", "toxoplasmosis", "diagnostics", "molecular detection", "PCR", "PCR-RFLP", "human material", "rodents", "genotyping", "parasite strains" ]
[ "Моlеkulаrnа dеtеkciја i gеnоtipizаciја sојеvа pаrаzitа Toxoplasma gondii izоlоvаnih u Srbiјi", "Molecular detection and genotyping of Toxooplasma gondiistrains isolated in Serbia" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Ивовић, Владимир; Савић-Павићевић, Душанка; Ђурковић-Ђаковић, Олгица; Вујанић, Марија; Molekularna detekcija i genotipizacija sojeva parazita Toxoplasma gondii izolovanih u Srbiji;
[ "http://nardus.mpn.gov.rs/bitstream/id/1956/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1956/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2048" ]
10.2298/bg20120709vujanic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2049
123456789-2049.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2340/bdef:Content/download
no
Uticaj fulerenola na učestalost hromozomskih aberacija i mikronukleusa u ćelijskoj liniji CHO-K1 ovarijuma hrčka i u kulturi limfocita periferne krvi čoveka
The influence of fullerenol on the frequency of chromosome aberrations and micronuclei in ovarian hamster cell line CH0-K1 and in human peripheral blood lymphocites cell culture
[ "Đorđević, Aleksandar" ]
[ "Anđelković, Marko" ]
Mrđanović, Jasminka Ž
2016-01-05T11:45:59
[ "2016-01-05T11:45:59", "2020-07-03T08:08:52" ]
2012-07-16
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=36", "https://nardus.mpn.gov.rs/handle/123456789/2049", "https://fedorabg.bg.ac.rs/fedora/get/o:2340/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024495794" ]
[ "Nanomaterijali zahvaljujući svojim malim dimenzijama i raznovrsnim fizičkohemijskim osobinama imaju velik potencijal za primenu u različitim oblastima života. Među nanočestice sa širokom upotrebom u biomedicini ubraja se fuleren C60. Njegova slaba vodorastvorljivost može se prevazići derivatizacijom, pri čemu fuleren stiče nova svojstva koja utiču na njegovu funkcionalnost. Najpoznatiji vodorastvorni derivati C60 su fulerenoli (С60(ОН)n, n=2-40), koji imaju velik potencijal za primenu u medicini. Taj potencijal je baziran na njihovoj sposobosti da u biološkim sistemima skupljaju slobodne radikale nastale u oksidativnom stresu. Međutim, sa druge strane, fulerenoli imaju sposobnost da pod određenim uslovima deluju prooksidativno. Zbog toga je neophodno definisanje koncentracija i uslova pod kojima fulerenol i njegovi derivati deluju kao antioksidanti odnosno prooksidanti. Taj aspekt je veoma važan zbog uticaja ovih nanočestica na DNK i određuje u velikoj meri njihova genotoksična odnosno antigenotoksična svojstva. Pored uticaja koncentracije nanočestica na oksidativni status, na genotoksičnost utiču i fizičkohemijske karakteristike samih nanočestica kao što su: veličina, oblik, površinsko naelektrisanje, čistoća, rastvorljivost, površinske modifikacije i agregacija, koje je takođe potrebno precizno definisati. Konačno, ispitivanje uticaja novosintentisanih supstanci sa potencijalom za medicinsku aplikaciju na DNK, predstavlja neophodan korak pre faze kliničkih studija. Zbog svega navedenog, primarni cilj ovog rada jeste ispitivanje genotoksičnih odnosno antigenotoksičnih svojstava vodorastvornog fulerenskog derivata fulerenola C60(OH)24, na dva različita sisarska modela. Prvi model je ćelijska kultura ovarijuma kineskog hrčka CHO-K1, a drugi primarna ćelijska kultura humanih limfocita. U radu su evaluirane fizičkohemijske karakteristike nanočestice fulerenola C60(OH)24 u medijumu za ćelijske kulture sa serumom i to u uslovima koji odgovaraju 6 eksperimentalnim uslovima u testovima mikronukleusa i hromozomskih aberacija. Zatim je ispitan uticaj fulerenola na preživljavanje ćelija u cilju utvrđivanja subcitotoksičnih koncentracija fulerenola, potrebnih za ispitivanje genotoksičnosti i antigenotoksičnosti fulerenola. Nakon toga je izvršena evaluacija incidencije biomarkera oštećenja DNK radi utvrđivanja genotoksičnog potencijala fulerenola. U poslednjem segmentu rada je evaluacijom istih biomarkera analiziran i antigenotoksičan potencijal fulerenola, na ćelijskim kulturama koje su prethodno oštećene poznatim citostatskim agensom mitomicinom C. Rezultati analiza su pokazali da je C60(OH)24 dimenzija od 40-180 nm u zavisnosti od kosolventa, kao i da gradi stabilne nanočestice u medijumu za ćelijsku kulturu sa fetalnim goveđim serumom. Citotoksičnost fulerenola kreće se u opsegu koncentracija od 88,6 μM-443,2 μM. Analizom genotoksičnosti fulerenola testom mikronukleusa i hromozomskih aberacija pokazano je da fulerenol nije bio genotoksičan u ispitivanim ćelijskim kulturama, pri ispitivanim subcitotoksičnim koncentracijama i pri datim vremenskim tretmanima. Ispitivanje antigenotoksičnog potencijala je pokazalo da fulerenol utiče na snižavanje ispitivanih biomarkera oštećenja DNK." ]
[ "Nanomaterials, due to their small dimensions and manifold physicochemical characteristics have great potential for application in various areas of life. One of nanoparticles with wide implementation in biomedicine is fullerene C60. Its weak water solubility can be overcome by derivatization after which fullerene acquires new characteristics, which affect its functionality. The most famous water soluble C60 derivatives are fullerenols (С60(ОН)n, n=2-40), which have great potential for implementation in medicine. This potential is based on their ability to collect free radicals occurring in oxidative stress in biological systems. However, on the other hand, fullerenols are able to act prooxidatively under certain conditions. Thus, it is necessary to define concentrations and conditions under which fullerenol and its derivatives act as antioxidants, i.e. prooxidants. This aspect is very important because of the impact of these nanoparticles to the DNA, which largely defines their genotoxic i.e. antigenotoxic characteristics. Besides the impact of nanoparticles’ concentration to oxidative status, genotoxicity is also affected by physicochemical characteristics of nanoparticles themselves: their size, shape, surface charge, purity, solubility, surface modifications and aggregation, which are all necessary to be precisely defined. Finally, the testing of the impact of newly synthesized substances with potential for medical application to DNA, represents a necessary step before the phase of clinical trials. Due to all the above state, the primary aim of this paper was to test genotoxic i.e. antigenotoxic characteristic of water-soluble fullerene derivative fullerenol C60(OH)24, in two different mammalian models. The first model was an ovarian cell culture of a Chinese hamster CHO-K1, and the other was a primary humane lymphocyte cell culture. The paper evaluated physicochemical characteristics of fullerenol nanoparticle C60(OH)24 in the cell culture medium with serum under the conditions which were in accordance with the experimental conditions in micronuclei and chromosomal 8 aberrations tests. Furthermore, the affect of fullerenol to cell survival was tested with the aim of determination of fullerenol subcytotoxic concentrations, necessary for testing of fullerenol genotoxicity and antigenotoxicity. After that, the DNA damage biomarkers incidence evaluation was performed for determination of fullerenol genotoxicity potential. In the last segment of the paper, the antigenotoxic potential of fullerenol was analyzed by evaluation of the same biomarkers, in cell cultures, which were previously damaged by the known cytostatic agent mitomycin C. The results of the analysis showed that C60(OH)24 dimensions of 40-180nm depended on the cosolvent, and that it crated stable nanoparticles in the cell culture medium with fetal bovine serum. Cytotoxicity of fullerenol varied in the range of concentrations from 88.6 μM-443.2 μM. The analysis of fullerenol genotoxicity by the micronuclei test and chromosomal aberrations test showed that fullerenol was not genotoxic in the tested cell cultures, at given subcytotoxic concentrations and treatment duration. Testing of antigenotoxic potential showed that fullerenol affected the decrease of the tested DNA damage biomarkers." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175056/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Nanočestice", "fulereni", "fulerenol", "genotoksičnost", "mikronukleusi", "hromozomske aberacije" ]
[ "Nanoparticles", "fullerenes", "fullerenol", "genotoxicity", "micronuclei", "chromosomal aberrations" ]
[ "Uticaj fulerenola na učestalost hromozomskih aberacija i mikronukleusa u ćelijskoj liniji CHO-K1 ovarijuma hrčka i u kulturi limfocita periferne krvi čoveka", "The influence of fullerenol on the frequency of chromosome aberrations and micronuclei in ovarian hamster cell line CH0-K1 and in human peripheral blood lymphocites cell culture" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Ђорђевић, Aлександар; Aнђелковић, Марко; Мрђановић, Јасминка Ж; Утицај фулеренола на учесталост хромозомских аберација и микронуклеуса у ћелијској линији ЦХО-К1 оваријума хрчка и у култури лимфоцита периферне крви човека; Утицај фулеренола на учесталост хромозомских аберација и микронуклеуса у ћелијској линији ЦХО-К1 оваријума хрчка и у култури лимфоцита периферне крви човека;
[ "https://nardus.mpn.gov.rs/bitstream/id/1960/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1960/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2049" ]
10.2298/bg20120716mrdjanovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2058
123456789-2058.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2765/bdef:Content/download
no
Ispitivanje uticaja aloe emodina na ćelije melanoma B16 i A375 i njihovu osetljivost na citostatike i imunski odgovor
Evaluation of aloe emodin effect on B16 and A375 melanoma cells and their sensitivity to anticancer drugs and immune response
[ "Maksimović-Ivanić, Danijela" ]
[ "Kataranovski, Milena", "Mijatović, Sanja", "Stošić-Grujičić, Stanislava", "Božić, Biljana" ]
Radović, Julijana M.
2016-01-05T11:46:16
[ "2016-01-05T11:46:16", "2020-07-03T08:08:57" ]
2012-09-28
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=46", "https://nardus.mpn.gov.rs/handle/123456789/2058", "https://fedorabg.bg.ac.rs/fedora/get/o:2765/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024530098" ]
[ "Aloe emodin (AE) spada u biljne molekule antraciklinskog tipa koji zahvaljujući reaktivnim grupama na atomima ugljenika benzenovih prstenova pokazuje izrazitu reaktivnost i posledično široki spektar biološke aktivnosti poput baktericidnog, fungicidnog, viricidnog, imunosupresivnog, antiinflamatornog, hepatoprotektivnog, laksativnog i vazorelaksirajućeg delovanja. Istraživanja novijeg datuma stavljaju u žižu interesovanja njegova antitumorska dejstva. Ciljevi koji su postavljeni u ovoj tezi podrazumevali su utvrđivanje tumoricidnog delovanja AE-a na ćelije mišjeg, B16 i humanog, A375 melanoma koje se inicijalno razlikuju u redoks statusu i aktivnosti signalnih puteva uključenih u kancerogenezu. Uz uporednu analizu unutarćelijskog odgovora pomenutih linija na tretman AE-om, ispitivan je i uticaja AE-a na osetljivost melanoma na imunski odgovor usmeren protiv transformisane ćelije kao i na efikasnost konvencionalne citostatske terapije. AE je snažno inhibirao rast obe ćelijske linije posredstvom različitih mehanizama. U slučaju A375 ćelija, AE je doveo do indukcije apoptoze zavisne od aktivnosti kaspaza uz smanjenje nivoa antiapoptotskih proteina XIAP i Bcl-2. Suprotno, tretman AE-om je indukovao ireverzibilnu diferencijaciju B16 ćelija u smeru primarnog fenotipa manifestovanog povećanom ekspresijom enzima tirozinaze i naknadnom produkcijom melanina. Opisana promena B16 ćelija bila je praćena brzom akumulacijom p53, ciklina D1 i D3. Ključni događaj u diferencijaciji B16 ćelija je, najverovatnije, povećana produkcija H2O2 indukovana AE-om. U osnovi heterogenih ishoda tretmana istovetnim agensom je recipročna regulacija aktivnosti ERK1/2 i Akt. Poseban značaj ima podatak da se apoptoza pokrenuta AE-om u A375 ćelijama odvija u uslovima prekomerne aktivnosti Akt. Analiza paralelnog tretmana ćelija melanoma AE-om i konvencionalnim citostaticima (doksorubicin i paklitaksel) pokazala je da pomenuta supstanca umanjuje efikasnost hemioterapije. Nekonzistentnost ishoda ko-tretmana AE-a i medijatora imunskog odgovora iz familije TNF molekula ukazala je na kompleksnost uticaja mikrosredine na učinak AE-a. U celini, rezultati ove doktorske disertacije pokazuju kako specifičnost ćelija melanoma definiše mehanizam delovanja AE-a iako ne ugrožava njegov antitumorski potencijal. S druge strane, opisani rezultati upozoravaju na opasnost kombinovanja biljnih preparata sa konvencionalnim terapeuticima usled mogućeg neutrališućeg efekta." ]
[ "Aloe emodin is an herbal antraquinone that, due to reactive groups on the carbon atoms of benzene rings, posseses a strong reactivity and consequently shows a wide range of biological activities such as antibacterial, antifungal, antiviral, diuretic, immunosuppressive, anti-inflammatory, hepatoprotective, laxative and vasorelaxant. Recent studies put the focus on its antitumor effects. The aim of this thesis was to determine and evaluate antitumor activity of AE on two melanoma cell lines that initially differs in redox status and activities of signaling pathways involved in carcinogenesis: mouse melanoma B16, and human melanoma A375 cells. Together with comparative analysis of the intracellular responses of two lines to the AE treatment, the impact of AE on the sensitivity of melanoma to antitumor immune response as well as the efficiency of conventional cytostatic therapy, were examined. AE decreased the growth of both cell lines through different mechanisms. In the case of A375 cells, AE inducted caspase dependent apoptosis by reducing protein levels of antiapoptotic molecules XIAP and Bcl-2. In contrast, treatment with AE promoted irreversible differentiation of B16 cells towords its primary phenotype manifested through increased expression of the tyrosinase and the subsequent production of melanin. Described change in B16 cells was accompanied by a rapid accumulation of p53, cyclin D1 and D3. Increased production of H2O2 triggered by AE is probably first in a line of events responsible for induction of differentiation of B16 cells. Opposite regulation of two main signaling pathways involved in cell proliferation, differentiation and death- MEK-ERK1/2 and PI3K-Akt in tested cell lines could be essential for different outcome of the treatment with single agent. Furthermore, analysis of the parallel treatment of melanoma cells with the AE and conventional cytostatics (doxorubicin and paclitaxel) showed that introduced substance decreases the effectiveness of chemotherapy. Incoherent outcome of co-treatment of AE and TNF, FasL or TRAIL, the most relevant mediators of nonspecific immune response aginst tumor cells, points to the complexity of the influence of microenvironmental factors to the effect of AE. In general, the results of this PhD thesis show that cell specificity of melanomas defines the mechanism of AE action, while it does not jeopardize its anticancer potential. On the other hand, presented results point to a danger of combining herbal medicines with conventional therapeutics due to their possible neutralizing effects." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173013/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Aloe emodin", "melanom", "ERK1/2", "Akt", "apoptoza", "diferencijacija" ]
[ "Aloe emodin", "melanoma", "ERK1/2", "Akt", "apoptosis", "differentiation" ]
[ "Ispitivanje uticaja aloe emodina na ćelije melanoma B16 i A375 i njihovu osetljivost na citostatike i imunski odgovor", "Evaluation of aloe emodin effect on B16 and A375 melanoma cells and their sensitivity to anticancer drugs and immune response" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Максимовић-Иванић, Данијела; Божић, Биљана; Катарановски, Милена; Мијатовић, Сања; Стошић-Грујичић, Станислава; Радовић, Јулијана М.; Испитивање утицаја алое емодина на ћелије меланома Б16 и A375 и њихову осетљивост на цитостатике и имунски одговор; Испитивање утицаја алое емодина на ћелије меланома Б16 и A375 и њихову осетљивост на цитостатике и имунски одговор;
[ "http://nardus.mpn.gov.rs/bitstream/id/1980/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1980/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2058" ]
10.2298/bg20120928radovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2053
123456789-2053.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2305/bdef:Content/download
no
Histološke i ultrastrukturne promene hipofize i nadbubrežnih žlezda pacova u uslovima akutnog toplotnog stresa
Histological and ultrastructural changes in the pituitary and adrenal glands of rats under acute heat stress
[ "Koko, Vesna" ]
[ "Milošević, Verica", "Budeč, Mirela", "Čakić Milošević, Maja" ]
Petrović-Kosanović, Dragana Ž
2016-01-05T11:46:11
[ "2016-01-05T11:46:11", "2020-07-03T08:08:53" ]
2012-09-09
[ "https://nardus.mpn.gov.rs/handle/123456789/2053", "http://eteze.bg.ac.rs/application/showtheses?thesesId=31", "https://fedorabg.bg.ac.rs/fedora/get/o:2305/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024496306" ]
[ "Ispitivan je uticaj akutnog toplotnog stresa na histološke, imunohistohemijske, ultrastrukturne, stereološke i biohemijske karakteristike adrenokortikotropnih ćelija hipofize i ćelija nadbubrežnih žlezda pacova kao ciljnih organa hipotalamo-hipofizne-adrenalne osovine u odgovoru na dejstvo stresora. Pacovi mužjaci soja Wistar izlagani su temperaturi od 38C u komori u trajanju od 60 minuta. Životinje su nakon tretmana žrtvovane dekapitacijom u prepodnevnim časovima, u približno isto vreme, da bi se izbegao uticaj cirkadijalnog ritma na proučavane parametre. Kortikotropne ćelije adenohipofize su analizirane na nivou svetlosne i transmisione elektronske mikroskopije primenom imunohistohemijskih i stereoloških metoda. U nadbubrežnim žlezdama ispitivane su histološke i ultrastrukturne karakteristike ćelija kore i srži. Kvantitativne odlike nadbubrežnih žlezda određivane su primenom stereoloških i morfometrijskih metoda na nivou svetlosne i elektronske mikroskopije. Peptidergički neuroni (VIP, SP i NPY) u kori i srži nadbubrežnih žlezda procenjivani su imunohistohemijskim metodama. Za prikazivanje protoka krvi u nadbubrežnim žlezdama korišćena je Noveli histološka metoda bojenja. Ćelije u proliferaciji procenjivane su preko Ki-67 antigena, dok je za detekciju apoptotskih ćelija nadbubrežnih žlezdi primenjeno bojenje propidijum-jodidom. Određivane su i koncentracije adrenokortikotropnog hormona hipofize (ACTH), kao i kortikosterona, aldosterona, adrenalina i noradrenalina nadbubrežnih žlezda pacova u cirkulaciji. U hipofizi, primenjeni tretman doveo je do povećanog izlučivanja ACTH iz kortikotropnih ćelija. Ovo se na nivou svetlosne mikroskopije manifestovalo smanjenjem broja ćelija imunopozitivnih na ACTH, a na nivou elektronske mikroskopije smanjenjem broja granula u ACTH ćelijama. U skladu sa tim, biohemijski podaci pokazali su da je koncentracija ACTH u cirkulaciji povećana. U krvnim sudovima hipofize prisutna je agregacija krvnih pločica..." ]
[ "The aim of the study was the effect of acute heat stress on the histological, immunohistochemical, ultrastructural, stereological and biochemical characteristics of corticotroph pituitary cells and cells of the adrenal glands of rats as a target organ of the hypothalamic-pituitary-adrenal axis in response to the effects of stressors. Wistar male rats were exposed to a temperature of 38C in the chamber for 60 minutes. Animals were sacrificed by decapitation after treatment in the morning, at about the same time, in order to avoid the influence of circadian rhythm on the studied parameters. Corticotroph pituitary cells were analyzed at the level of light and by transmission electron microscopy using immunohistochemical and stereological methods. The adrenal glands were studied by histological and ultrastructural characteristics of the cells of cortex and medulla. Quantitative characteristics of the adrenal glands were determined using stereological and morphometric methods at light and electron microscopy. Peptide neurons (VIP, SP and NPY) in the cortex and medulla of the adrenal glands were assessed by immunohistochemical methods. To show the flow of blood to the adrenal glands a Novelli histological method of staining was used. The cells in proliferation were assessed by Ki-67 antigen, whereas the detection of apoptotic cells of the adrenal gland was enabled by propidium-iodide staining. The concentration of pituitary adrenocorticotropic hormone (ACTH) and corticosterone, aldosterone, adrenaline and noradrenaline in the rat adrenal gland circulation were determined. In the pituitary, the applied treatment resulted in increased secretion of ACTH from corticotroph cells. On the level of light microscopy, it was demonstrated by decreased number of immunopositive ACTH cells, and at the level of electron microscopy by reduced number of granules in the ACTH cells. Accordingly, biochemical data showed that the concentration of ACTH in the circulation increased. The blood vessels of the pituitary gland in platelet aggregation were present..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173023/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Akutni toplotni stres", "pacov", "hipofiza", "nadbubrežne žlezde", "histologija", "ultrastruktura" ]
[ "Acute heat stress", "rat", "pituitary", "adrenal glands", "histology", "ultrastructure" ]
[ "Histološke i ultrastrukturne promene hipofize i nadbubrežnih žlezda pacova u uslovima akutnog toplotnog stresa", "Histological and ultrastructural changes in the pituitary and adrenal glands of rats under acute heat stress" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Коко, Весна; Милошевић, Верица; Будеч, Мирела; Чакић Милошевић, Маја; Петровић-Косановић, Драгана Ж; Хистолошке и ултраструктурне промене хипофизе и надбубрежних жлезда пацова у условима акутног топлотног стреса; Хистолошке и ултраструктурне промене хипофизе и надбубрежних жлезда пацова у условима акутног топлотног стреса;
[ "https://nardus.mpn.gov.rs/bitstream/id/1964/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1964/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2053" ]
10.2298/bg20120909petrovickosanovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2085
123456789-2085.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3437/bdef:Content/download
no
Povezanost polimorfizama VDR, CYP27B1 i CYP24A1 gena sa etiološkim faktorima i ishodom bolesti kod pacijenata sa oralnim skvamocelularnim karcinomom
Association of polymorphisms in VDR, CYP27B1 and CYP24A1 genes with etiological factors and disease outcomes in patients with oral squamous cell carcinoma
[ "Stamenković-Radak, Marina" ]
[ "Magić, Zvonko", "Milašin, Jelena" ]
Zeljić, Katarina
2016-01-05T11:46:43
[ "2016-01-05T11:46:43", "2020-07-03T08:09:22" ]
2012-11-05
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=69", "https://nardus.mpn.gov.rs/handle/123456789/2085", "https://fedorabg.bg.ac.rs/fedora/get/o:3437/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024527538" ]
[ "Oralni skvamocelularni karcinomi (Oral Squamous Cell Carcinoma- OSCC) se karakterišu visokom stopom mortaliteta, lošom prognozom i porastom incidence među osobama mlađe populacije. I pored uloženih napora na polju prevencije, petogodišnje preživljavanje je ostalo nepromenjeno poslednjih nekoliko decenija, što nameće potrebu za nove, molekularne vidove karakterizacije oralnog karcinoma. Poznati faktori rizika za nastanak oralnog karcinoma su: pušenje i žvakanje duvana, konzumiranja alkohola, loša oralna higijena i infekcije visokorizičnim tipovima humanog papiloma virusa. Činjenica da samo izvesni procenat osoba izloženih navedenim faktorima rizika zaista i razvije OSCC, ukazuje na značaj genetičke osnove u procesu oralne kancerogeneze. Mnogobrojnim studijama je pokazano da vitamin D ima antikancerogeni efekat, koji se ogleda u zaustavljanju ćelijskog ciklusa, inicijaciji ćelijske diferencijacije, indukciji apoptoze, sprečavanju invazije malignih ćelija i antiangiogenetskom dejstvu. Vitamin D ispoljava svoju fiziološki aktivnu ulogu nakon vezivanja za receptor za vitamin D (engl. Vitamin D Receptor- VDR) koji je kodiran VDR genom. U VDR genu je identifikovan veliki broj polimorfizama nukleotidne sekvence (engl. Single Nucleotide Polymorphisms- SNP), od kojih samo mali broj ima funkcionalni efekat. U metabolizam vitamina D su uključeni članovi velike familije proteina citohroma P450 i to: 1α-hidroksilaza uključena u proces anabolizma (kodirana CYP27B1 genom), odnosno 24-hidroksilaza koja ima ulogu u katabolizmu (kodirana CYP24A1 genom). Obzirom na značaj proučavanja SNP-ova u genetičkim studijama asocijacije, postavlja se pitanje da li postojanje izvesnih genetičkih varijanti u genima uključenim u funkcionisanje i metabolizam vitamina D može biti asocirano sa rizikom nastanka oralnog karcinoma, kliničko patološkim karakteristikama i preživljavanjem pacijenata..." ]
[ "Oral Squamous Cell Carcinoma (OSCC) is characterized with a high mortality, low survival rate and rising incidences among members of younger age groups. Despite efforts in prevention, the survival rate remains unchanged for the last few decades, which indicates the need for oral cancer molecular characterization. The well-known risk factors are tobacco smoking and chewing, alcohol consumption, poor oral hygiene and infection with high risk human papilloma virus types. The fact that only a small percentage of people exposed to the risk factors really develops OSCC indicates the importance of genetic background in the process of oral cancerogenesis. Numerous studies have demonstrated the anticancerogen effects of vitamin D, which is reflected in cell cycle arrest, induction of cell differentiation, apoptosis induction, inhibition of malignant cell invasion and antiangiogenic effect. Vitamin D exerts it’s physiological function after binding to the Vitamin D Receptor (VDR), which is encoded by the VDR gene. A great number of Single Nucleotide Polymorphisms (SNPs) have been identified in the VDR gene, among which a small number have functional effects. Members of the huge protein cytochrome P450 family are involved in vitamin D metabolism: 1α-hydroxylase is involved in anabolism (encoded by the CYP27B1 gene) and 24-hydroxylase is involved in catabolism (encoded by the CYP24A1 gene). Since SNPs investigation is of great importance in the genetic association studies, it is interesting to consider whether genetic variants in genes, involved in vitamin D functioning and metabolism, could be associated with oral cancer risk, clinicopathological characteristics and patient survival..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Oralni skvamocelularni karcinom", "polimorfizmi nukleotidne sekvence", "VDR gen", "CYP27B1 gen", "CYP24A1 gen" ]
[ "Oral squamocellular carcinoma", "single nucleotide polymorphism", "VDR gene", "CYP27B1 gene", "CYP24A1 gene" ]
[ "Povezanost polimorfizama VDR, CYP27B1 i CYP24A1 gena sa etiološkim faktorima i ishodom bolesti kod pacijenata sa oralnim skvamocelularnim karcinomom", "Association of polymorphisms in VDR, CYP27B1 and CYP24A1 genes with etiological factors and disease outcomes in patients with oral squamous cell carcinoma" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Стаменковић-Радак, Марина; Милашин, Јелена; Магић, Звонко; Зељић, Катарина;
[ "https://nardus.mpn.gov.rs/bitstream/id/2074/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2074/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2085" ]
10.2298/bg20121105zeljic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2083
123456789-2083.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2411/bdef:Content/download
no
Uloga humoralnog imunskog odgovora u etiopatogenezi amiotrofične lateralne skleroze
The role of humoral immune response in the aetiopathogenesis of amyotrophic lateral sclerosis
[ "Anđus, Pavle" ]
[ "Stenovec, Matjaž", "Stević, Zorica", "Božić, Biljana", "Miljković, Đorđe" ]
Milošević, Milena M.
2016-01-05T11:46:42
[ "2016-01-05T11:46:42", "2020-07-03T08:09:20" ]
2012-09-28
[ "https://nardus.mpn.gov.rs/handle/123456789/2083", "http://eteze.bg.ac.rs/application/showtheses?thesesId=42", "https://fedorabg.bg.ac.rs/fedora/get/o:2411/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41534223" ]
[ "Amiotrofična lateralna skleroza (ALS) je fatalna neurodegenerativna bolest sa početkom u adultnom dobu koja se karakteriše progresivnim gubitkom gornjih i donjih motoneurona, što dovodi do atrofije muskulature, mišićne paralize i smrti usled slabosti respiratorne muskulature. Oko 5-10% ALS slučajeva su sa familijarnom istorijom bolesti (fALS), dok su preostali slučajevi sporadični (sALS) sa nepoznatim uzrokom bolesti. Cilj ove disertacije bio je da proceni efekat imunoglobulina G (IgG) izolovanog iz sALS bolesnika (ALS IgG) na homeostazu kalcijuma i mobilnost endozoma/lizozoma kod pacovskih kortikalnih astrocita u kulturi. ALS IgG (0.1 mg/ml) poreklom od 7 ALS pacijenata, za razliku od IgG iz 3 kontrolne osobe, izazvao je prolazne promene unutarćelijske koncentracije kalcijuma (Ca2+-talas) u astrocitima. Povećana aktivnost kalcijuma detektovana je kod oko polovine astrocita nakon tretmana sa ALS IgG, bez obzira na prisustvo vanćelijskog kalcijuma (47,5 ± 12,9 %, 2 mM Ca2+ naspram 48,2 ± 13,6 %, 0 mM Ca2+). U prisustvu vanćelijskog kalcijuma, maksimalna vrednost promene dostignuta je ~3x brže (19,7 ± 2,8 s, 2 mM Ca2+ naspram 56,3 ± 6,8 s, 0 mM Ca2+) i ukupno povećanje kalcijuma (površina pod Ca2+-talasom) bilo je ~1.7x veće (26,0 ± 1,6 F/F0 *s, 2 mM Ca2+ naspram 15,6 ± 1.1 F/F0 *s, 0 mM Ca2+), ali vanćelijski kalcijum nije uticao na maksimum amplitude kalcijumovog talasa. Primena farmakoloških inhibitora otkrila je da je aktivacija inozotol 1,4,5-trifosfatnog (IP3), za razliku od rianodinskog receptora neophodna i dovoljna da inicira povećanu aktivnost, a ulazak kalcijuma kroz TRPC kanale produžava odgovor. Inhibicija fosfolipaze C (PLC) umanjuje, dok inhibicija fosfatidilinozitol-3-kinaze (PI3K) u potpunosti sprečava tipičan ALS IgG-izazvan kalcijumski odgovor. Populacija vezikula obeleženih lizotrekerom koji boji endozome i lizozome, sastojala se od stacionarnih vezikula (6,1%) sa prosečnom brzinom koja nije prelazila 67 nm/s i mobilnih vezikula (93.9%) čija je ukupna dužina putanje (TL) pređene za 15 s iznosila u proseku 3,03±0,01 μm. ALS IgG (0.1 mg/ml) poreklom iz 12 od 13 ALS bolesnika povećao je TL mobilnih vezikula za ~24% i maksimalni pomeraj (MD) za ~26% tokom praćenih 4 min, za razliku od kontrolnih IgG (poreklom od 4 osobe) koji nisu uticali na mobilnost vezikula. ALS IgG-izazvano povećanje mobilnosti bilo je manje izraženo u rastvoru bez Ca2+, što ukazuje da su promene u homeostazi kalcijuma uključene u proces kojim ALS IgG povećava mobilnost vezikula. Interesantno, ALS IgG kao i ATP (1 mM) nisu uticali na oslobađanje sadržaja vezikula, što znači da je brza i kompletna egzocitoza malo verovatan događaj kod astrocita u kulturi u našim eksperimentalnim uslovima. Sumarno, ALS IgG utiče na kalcijumovu homeostazu astrocita preko IP3-posredovanog oslobađanja kalcijuma iz endoplazmatičnog retikuluma i ulaska kalcijuma kroz TRPC kanale, uz aktivaciju PI3K uzvodno od PLC. ALS IgG povećavaju mobilnost endozoma i lizozoma, a ovaj efekat delimično zavisi od vanćelijskog kalcijuma. Ova studija je otkrila molekulske mehanizme kojima astrociti postaju meta humoralnog imunskog odgovora u ALS, što može da doprinese etiopatogenezi bolesti." ]
[ "Amyotrophic lateral sclerosis (ALS) is an adult onset fatal neurodegenerative disease characterized mainly by the progressive loss of upper and lower motor neurons resulting in wasting, paresis and death from respiratory failure. Approximately 5-10% of ALS cases are familial (fALS), while the rest are sporadic (sALS) with unknown cause of disease. The objective of this dissertation was to evaluate the effect of immunoglobulin G (IgG) isolated from sALS patients (ALS IgG) on calcium homeostasis and mobility of endosomes/lysosomes in cultured rat cortical astrocytes. ALS IgG (0.1 mg/ml) from 7 ALS patients, but not IgG from 3 control individuals evoked calcium transients (Ca2+-waves) in astrocytes. About half of the tested astrocytes responded with elevated calcium activity regardless of the presence of extracellular calcium (47.5 ± 12.9 %, 2 mM Ca2+ vs. 48.2 ± 13.6 %, 0 mM Ca2+). In presence of extracellular calcium, the peak amplitude developed ~3x faster (19.7 ± 2.8 s, 2 mM Ca2+ vs. 56.3 ± 6.8 s, 0 mM Ca2+) and the overall magnitude of calcium rise (area under the Ca2+-wave) was ~1.7x larger (26.0 ± 1.6 F/F0 *s, 2 mM Ca2+ vs. 15.6 ± 1.1 F/F0 *s, 0 mM Ca2+), while the peak amplitude itself was not affected. Application of pharmacological inhibitors revealed that activation of inositol 1,4,5- triphosphate (IP3), but not of ryanodine receptors is necessary and sufficient to initiate elevated activity, while the influx of extracellular calcium through TRPC channels prolongs the responses. Inhibition of phospholipase C (PLC) diminishes, while the inhibition of phosphatidilinositol-3-kinase (PI3K) completely prevents typical ALS IgG evoked calcium response. The population of vesicles labeled with lysotracker that mainly stains endosomes and lysosomes, consisted of non-mobile (6.1%) vesicles with the average speed of <67 nm/s and mobile vesicles (93.9%) with total track length (TL) in 15 s averaging at 3.03±0.01 μm. ALS IgG (0.1 mg/ml) from 12 of 13 patients increased the TL of mobile vesicles by ~24% and the maximal displacement (MD) by ~26% within 4 min, while IgG from control group (n=4) did not alter the vesicle mobility. The mobility enhancement by ALS IgG was less pronounced in Ca2+-free extracellular solution, indicating that ALS IgG vesicle mobility enhancement involves changes in Ca2+ homeostasis. Interestingly, neither ALS IgG nor ATP (1 mM) triggered the release of vesicular cargo, making rapid and complete exocytosis unlikely in cultured astrocytes in our experimental conditions. In conclusion, ALS IgG affect calcium homeostatic system in astrocytes by IP3 mediated calcium release from the endoplasmic reticulum and entry of extracellular calcium through TRPC channels, with the activation of PI3K upstream of PLC. ALS IgG enhance the mobility of endosomes and lysosomes, and this effect is partialy dependent on extracellular calcium. This study revealed the molecular mechanisms by which astrocytes become targeted cells for humoral immune response in ALS that could contribute to the aetiopathogenesis of the disease." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Београду
[ "amiotrofična lateralna skleroza", "imunoglobulin G", "kalcijumova homeostaza", "endozomi", "lizozomi", "mobilnost vezikula", "astrociti" ]
[ "amyotrophic lateral sclerosis", "immunoglobulin G", "calcium homeostasis", "endosomes", "lysosomes", "vesicle mobility", "astrocytes" ]
[ "Uloga humoralnog imunskog odgovora u etiopatogenezi amiotrofične lateralne skleroze", "The role of humoral immune response in the aetiopathogenesis of amyotrophic lateral sclerosis" ]
[ "" ]
doctoralThesis
[ "BY-NC" ]
Aнђус, Павле; Стевић, Зорица; Божић, Биљана; Стеновец, Матјаж; Миљковић, Ђорђе; Милошевић, Милена М.; Улога хуморалног имунског одговора у етиопатогенези амиотрофичне латералне склерозе; Улога хуморалног имунског одговора у етиопатогенези амиотрофичне латералне склерозе;
[ "https://nardus.mpn.gov.rs/bitstream/id/2066/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2066/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2083" ]
10.2298/bg20120928milosevic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/10050
123456789-10050.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:18389/bdef:Content/download
no
Efekti pola i heterogenih uslova svetlosti u populacijama dvodome vrste Mercurialis perennis L. na diferencijalnu herbivoriju
Effects of plant sex and heterogeneous habitat light conditions in populations of dioecious Mercurialis perennis L. on differential herbivory
[ "Cvetković, Dragana" ]
[ "Stanisavljević, Nemanja", "Radović, Svetlana", "Miljković, Danijela", "Petrović, Anđeljko" ]
Selaković, Sara D.
2018-11-07T15:53:11
[ "2018-11-07T15:53:11", "2020-07-03T08:06:59" ]
2018-06-05
[ "https://nardus.mpn.gov.rs/handle/123456789/10050", "http://eteze.bg.ac.rs/application/showtheses?thesesId=6051", "https://fedorabg.bg.ac.rs/fedora/get/o:18389/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025191346" ]
[ "U ovom istraživanju ispitivano je prisustvo polno-specifične i diferencijalne herbivorije u odnosu na svetlosne uslove staništa kod dvodome vrste Mercurialis perennis L. (Euphorbiaceae). Testirani su efekti pola, svetlosnih uslova staništa i ontogenetskog stadijuma na osobine veličine biljaka (visinu, ukupnu površinu listova) i listova (dužinu drške i centralnog nerva, širinu i površinu lisne ploče), nutritivne (sadržaj vode, ukupnih solubilnih proteina i nestrukturnih ugljenih hidrata) i defanzivne osobine listova (sadržaj fenola i kondenzovanih tanina), specifičnu lisnu površinu i razvojnu nestabilnost (procenjenu preko indeksa fluktuirajuće asimetrije – FA). Ispitivano je koje od analiziranih osobina biljaka imaju ulogu u interakcijama M. perennis sa herbivorima u zavisnosti od svetlosnih uslova staništa i ontogenetskog stadijuma. Analizom korelacionih odnosa istraživana je povezanost između stepena herbivorije, razvojne nestabilnosti i ispitivanih osobina biljaka u odnosu na pol i svetlosne uslove staništa. Mercurialis perennis ili šumski prosinac je višegodišnja, zeljasta, dvodoma biljka koja je najčešće član biljnih zajednica prizemnog sprata nenarušenih šumskih ekosistema. Ređe se može naći na staništima sa otvorenim vegetacijskim sklopom. Kod dvodomih vrsta polovi se mogu razlikovati kako u vegetativnim osobinama tako i u stepenu oštećenja listova izazvanih aktivnošću herbivora. Iz navedenih razloga M. perennis predstavlja izuzetno pogodan model sistem za istovremeno proučavanje uticaja pola i svetlosnih uslova staništa na stepen herbivorije, osobine biljaka i razvojnu nestabilnost. U ovo istraživanje uključene su populacije M. perennis sa lokaliteta Bele stene (Kopaonik) i Beograd. Na lokalitetu Bele stene biljke su uzorkovane tokom dve uzastopne godine sa dva susedna staniša. Jedno stanište je bilo izloženo punoj dnevnoj svetlosti u sastavu rudine, dok se drugo nalazilo pod vegetacijskom senkom unutar četinarske šume. Razlike u svetlosnim uslovima na staništu kvantifikovane su merenjem razlika u pokrovnosti staništa korišćenjem hemisfernih fotografija..." ]
[ "This study investigated the presence of sex – biased and light differential herbivory in dioecious Mercurialis perennis L. (Euphorbiaceae). It was tested if plant sex, light conditions and the ontogenetic stage had significant effect on plant size (height, total leaf area) and leaf size (petiole and midvein length, width and leaf blade surface), leaf nutritional (water, total soluble protein and nonstructural carbohydrate content) and defensive traits (total phenolic and condensed tannin content), specific leaf area and developmental instability (estimated as fluctuating asymmetry). It was examined which of the analyzed plant traits mediated interactions between M. perennis and herbivores depending on habitat light conditions and plant ontogenetic stage. By using correlation analyses the connection between herbivory, developmental instability and analyzed plant traits was investigated in relation to habitat light conditions. Mercurialis perennis or dogs' mercury is a perennial, dioecious herb that is a common member of the ground level communities of undisturbed forests. Rarely this species can be found in completely open field. In dioecious plants, the sexes can differ in vegetative traits as well as in herbivory rates. Therefore, M. perennis represents a suitable model system for exploring simultaneously the effects of plant sex and habitat light conditions on herbivory, plant traits and developmental instability. This research included populations of M. perennis from two sites: Bele stene (Kopaonik) and Belgrade. At Bele stene site the plants were sampled during two consecutive years from two neighboring habitats. One habitat was exposed to full sunlight in an open field, while the other was inside of an evergreen forest. Differences in light conditions between the habitats (canopy openness) were quantified by means of hemispherical photography. The sample from 2015. was used to test the effects of plant sex and habitat light conditions on herbivory and analyzed plant traits, while the sample from 2016. apart from already stated, was also used to test the mentioned effects on leaf size traits and fluctuating asymmetry as an indicator of developmental instability. Four fluctuating asymmetry indices were quantified for leaf petiole length, midvein length, leaf blade width and leaf blade surface area..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "interakcije između biljaka i herbivora", "svetlosni uslovi staništa", "dvodomost", "ontogenija", "odbrambene osobine biljaka", "fenoli", "tanini" ]
[ "plant – herbivore interactions", "habitat light conditions", "dioecy", "ontogeny", "plant defensive traits", "phenolics", "tannins" ]
[ "Efekti pola i heterogenih uslova svetlosti u populacijama dvodome vrste Mercurialis perennis L. na diferencijalnu herbivoriju" ]
[ "Effects of plant sex and heterogeneous habitat light conditions in populations of dioecious Mercurialis perennis L. on differential herbivory" ]
doctoralThesis
[ "BY-NC-ND" ]
Цветковић, Драгана; Петровић, Aнђељко; Станисављевић, Немања; Радовић, Светлана; Миљковић, Данијела; Селаковић, Сара Д.; Ефекти пола и хетерогених услова светлости у популацијама дводоме врсте Мерцуриалис переннис Л. на диференцијалну хербиворију; Ефекти пола и хетерогених услова светлости у популацијама дводоме врсте Мерцуриалис переннис Л. на диференцијалну хербиворију;
[ "https://nardus.mpn.gov.rs/bitstream/id/1496/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1497/IzvestajKomisije17842.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1496/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1497/IzvestajKomisije17842.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_10050" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11730
123456789-11730.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20690/bdef:Content/download
no
Mitotička i mejotička nestabilnost DMPK ekspanzija sa varijantnim ponovcima kao genetički modifikator fenotipa miotonične distrofije tipa 1
Mitotic and meiotic instability of DMPK expansions with variant repeats as a genetic modifier of myotonic dystrophy type 1 phenotype.
[ "Savić-Pavićević, Dušanka" ]
[ "Rakočević-Stojanović, Vidosava", "Brajušković, Goran", "Anđus, Pavle" ]
Pešović, Jovan
2019-12-31T10:03:50
[ "2019-12-31T10:03:50", "2020-07-03T08:08:00" ]
2019-04-02
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=7062", "https://nardus.mpn.gov.rs/handle/123456789/11730", "https://fedorabg.bg.ac.rs/fedora/get/o:20690/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025216690" ]
[ "otonična distrofija tip 1 (DM1) je najčešća nasledna mišićna distrofija odraslih osoba i praćena je multisistemskim simptomima. Uzrokovana je ekspanzijama (povećanjem broja) CTG ponovaka u genu DMPK, koje se odlikuju mejotičkom i mitotičkom nestabilnošću sa težnjom ka daljem povećanju broja ponovaka. DM1 je jedna od fenotipski najvarijabilnijih monogenskih bolesti. Broj CTG ponovaka je glavni faktor koji utiče na uzrast početka bolesti i težinu kliničke slike, a pretpostavlja se da različiti genetički, epigenetički i/ili sredinski faktori modifikuju njegov efekat. Manje od 5% DM1 bolesnika poseduje varijantne ponovke (CCG, CTC, GGC ili CAG) rasute među CTG ponovcima, i može ispoljiti neobične i blaže simptome, nego što se očekuje na osnovu njihovog broja ponovaka. Predmet ove doktorske teze bila je genetička i epigenetička karakterizacija varijantnih ponovaka kod DM1 bolesnika i njihov modifikujući efekat na fenotip. Varijantni ponovci su detektovani samo na 3′ kraju ekspanzija kod 9 od 243 DM1 bolesnika (3,7%) iz 5 od 174 porodice (2,9%), primenom repeat-primed PCR-a (RP-PCR). Sangerovim sekvenciranjem RP-PCR proizvoda, CCG ponovci, organizovani kao pojedinačni, kratki ili dugi perfektni nizovi, ili kao pojedinačni ili pravilni nizovi CCGCTG heksamera, identifikovani su kod osam bolesnika. Kod preostalog bolesnika, prvi put je opisana DMPK ekspanzija sa de novo nastalim CTC ponovkom. Praćenjem četiri međugeneracijska prenošenja varijantnih DMPK ekspanzija, primenom longe-range PCR-a i Southern blota, zapažena su stabilna prenošenja ili kontrakcije (smanjenje broja ponovaka). Korišćenjem podataka iz ove i publikovanih studija, pokazano je da se varijantne DMPK ekspanzije, suprotno čistim (sastavljenim iz perfektnih CTG ponovaka), međugeneracijski češće stabilno prenose ili kontrahuju, posebno kada je prenosilac majka. Somatska nestabilnost DMPK ekspanzija kvantifikovana je single-molecule small-pool PCR-om. Umnoženo je ~5700 alela, sa preko 200 alela po analiziranom uzorku krvi i bukalnog brisa. Somatska nestabilnost varijantnih DMPK ekspanzija, slično čistim, odlikovala se tkivnom specifičnošću i težnjom ka povećanju broja ponovaka tokom života bolesnika. Međutim, matematičkim modelovanjem pokazano je da se varijantne DMPK ekspanzije karakterišu nižim nivoom somatske nestabilnosti, koja je praćena manjim povećanjem broja ponovaka tokom vremena. RP-PCR profili su ukazali na to da su varijantni ponovci stabilni u ćelijama krvi tokom vremena i između ćelija krvi i bukalne sluznice..." ]
[ "adults, characterized by multisistem features. It is caused by expansions (an increase in the number) of CTG repeats in the DMPK gene, which are meiotically and mitotically unstable and tend to expand further. DM1 is phenotypically one of the most variable monogenic diseases. The number of CTG repeats is the main factor influencing age at onset and severity of disease. The effect of the causing mutation is assumed to be modified by different genetic, epigenetic and/or environmental factors. Less than 5% of DM1 patients carry variant repeats (CCG, CTC, GGC or CAG) scattered among CTG repeats, and they can express some unusual and milder symptoms than expected based on their number of repeats. The subject of this doctoral thesis was the genetic and epigenetic characterization of variant repeats in DM1 patients and their modyfing effect on the phenotype. Variant repeats were detected only at the 3′ end of expansions in 9 out of 243 DM1 patients (3,7%) from 5 out of 174 families (2,9%), by repeat-primed PCR (RP-PCR). Sanger sequencing of RP-PCR products identified the CCG repeats in 8 patients, which were present as individual repeats, short or long pure tracts, or individual or short tracts of CCGCTG hexamers. In the remaining patient, a DMPK expansion with a de novo CTC variant repeat has been described for the first time. The analysis of four intergenerational transmissions of variant DMPK expansions by longe-range PCR and Southern blot showed stable transmissions or even contractions (a decrease in the number). By combining data from this and previously published studies, it was shown that variant DMPK expansions, in contrast to the pure ones (carrying only CTG repeats), were more often stably transmitted or contracted, particularly when the transmitting parent was mother. Somatic instability of DMPK expansions was quantified by single-molecule small-pool PCR. A total of ~5700 alleles were amplified, with more than 200 alleles per analyzed blood and buccal swab sample. The somatic instability of variant DMPK expansions had characteristics similar to expansions consisting of pure CTG repeats: tissue specificity and a bias toward further expansions throughout the patient’s life. However, mathematical modeling demonstrated that variant DMPK expansions were characterized by a lower level of somatic instability, which was accompanied by the lower expansion size increment in blood cells over time..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173016/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "CTG", "CCG", "ekspanzija", "DMPK", "miotonična distrofija 1", "metilacija DNK", "mejotička nestabilnost", "mitotička nestabilnost", "uzrast početka bolesti", "varijantni ponovci" ]
[ "CTG", "CCG", "expansion", "DMPK", "myotonic dystrophy 1", "DNA methylation", "meiotic instability", "mitotic instability", "age at onset", "variant repeats" ]
[ "Mitotička i mejotička nestabilnost DMPK ekspanzija sa varijantnim ponovcima kao genetički modifikator fenotipa miotonične distrofije tipa 1" ]
[ "Mitotic and meiotic instability of DMPK expansions with variant repeats as a genetic modifier of myotonic dystrophy type 1 phenotype." ]
doctoralThesis
[ "BY" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1768/IzvestajKomisije21576.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1767/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11730" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/10055
123456789-10055.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:18544/bdef:Content/download
no
Procena kvaliteta površinske vode na osnovu mikrobioloških parametara i ekogenotoksikoloških i histopatoloških analiza tkiva deverike Abramis brama (L., 1758) , krupatice Blicca bjoerkna (L., 1758) i crnooke deverike Ballerus sapa (P., 1814)
Assessment of surface water quality based on microbiological parameters and ecogenotoxicological and histopathological analysis of common bream Abramis brama (L., 1758), white bream Blicca bjoerkna (L., 1758) and white-eye bream Ballerus sapa (P., 1814) tissues
[ "Vuković-Gačić, Branka" ]
[ "Lenhardt, Mirjana", "Kolarević, Stoimir", "Gačić, Zoran", "Rašković, Božidar" ]
Kostić-Vuković, Jovana M.
2018-11-07T15:53:15
[ "2018-11-07T15:53:15", "2020-07-03T08:07:06" ]
2018-07-12
[ "https://nardus.mpn.gov.rs/handle/123456789/10055", "http://eteze.bg.ac.rs/application/showtheses?thesesId=6109", "https://fedorabg.bg.ac.rs/fedora/get/o:18544/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=50645519" ]
[ "Biomonitoring predstavlja neophodnu komponentu tradicionalnih tehnika monitoringa, sa ciljem da se uspostavi veza izmeŤu spoljašnjih koncentracija zagaŤivaţa, koncentracija zagaŤivaţa u tkivima bioindikatora i ranih štetnih efekata po ispitivane organizme. Ribe su korisni bioindikatori i ţesto se primenjuju u ekogenotoksikološkim ispitivanjima. U ovoj studiji, procena stanja kvaliteta površinske vode vršena je na reci Savi na lokalitetu Duboko i na reci Dunav na lokalitetu Višnjica tokom 2014. godine, kako bi se procenio uticaj razliţitih sezona na variranje parametara kvaliteta i odgovor biomarkera deverike, krupatice i crnooke deverike. Procena kvaliteta vode vršena je merenjem fiziţko-hemijskih i mikrobioloških parametara fekalnog i organskog zagaŤenja. Procena genotoksiţnog potencijala vršena je primenom alkalnog komet testa za kvantifikaciju DNK oštešenja u šelijama krvi, jetre i škrga riba, kao biomarkera izlaganja. Histopatološke promene u jetri i škrgama prašene su kao biomarker efekta. Paralelno, prašene su koncentracije metala i metaloida u jetri, škrgama, gonadama i mišišu, primenom metode ICP-OES. Na lokalitetu Višnjica zabeleţen je viši nivo fekalnog i organskog zagaŤenja. Na lokalitetu Duboko zabeleţene su više koncentracije ispitivanih elemenata u sva ţetiri tkiva, u poreŤenju sa lokalitetom Višnjica. Na oba lokaliteta škrge su akumulirale najviše koncentracije metala i metaloida, a mišiš najniţe. Na oba lokaliteta, krv je bila tkivo sa najvišim nivoom DNK oštešenja, dok je jetra tokom vešine meseci imala najniţe DNK oštešenje. Na lokalitetu Višnjica zabeleţene su više vrednosti DNK oštešenja krvi, na lokalitetu Duboko više vrednosti DNK oštešenja škrga, dok je nivo DNK oštešenja u šelijama jetre na oba lokaliteta bio pribliţno jednak. Na lokalitetu Duboko pri najvešim vrednostima histopatološkog indeksa škrga zabeleţeno je blago do umereno oštešenje, a na lokalitetu Višnjica umereno do teško oštešenje škrga. Na oba lokaliteta, jetra je bila organ sa vešim obimom histopatoloških promena u odnosu na škrge. Sveukupno, škrge kao prvi organ u direktnom kontaktu sa zagaŤivaţima iz vode pokazale su vešu akumulaciju ispitivanih elemenata i viši nivo DNK oštešenja, dok je jetra kao glavni organ za procesuiranje zagaŤivaţa iz vode i hrane pokazala viši nivo histopatoloških promena. Odabrane vrste pokazale su se kao pogodni bioindikatori za in situ ispitivanja efekata zagaŤenja." ]
[ "Biomonitoring represents an essential part of traditional monitoring techniques with the aim to establish relationship between external concentrations of pollutants, concentrations of pollutants in the tissues of bioindicators and early adverse effects in examined organisms. Fish are useful bioindicators often used in ecogenotoxicological studies. In this study, assessment of the surface water quality was performed on the Sava River locality Duboko and on the Danube River locality Višnjica during 2014 in order to examine the impact of different seasons on the variation of the quality parameters and biomarker response in common bream, white bream and white-eye bream. Assessment of the water quality was performed based on the physico-chemical parameters and microbiological parameters of fecal and organic pollution. Genotoxic potential was assessed by using the alkaline comet assay in order to quantify DNA damage level, in blood, liver and gill cells, as a biomarker of exposure. Histopathological analyses of liver and gill tissue were monitored as a biomarker of effect. Additionally, concentrations of metals and metalloids in liver, gills, gonads and muscle were performed by the ICP-OES method. The higher level of fecal and organic pollution was present on the locality Višnjica. The higher concentrations of examined elements in all four tissues were present in fish from the locality Duboko, in comparison to the locality Višnjica. At both sites gills accumulated the highest concentrations of metals and metalloids, while muscle accumulated the lowest concentrations. Blood was the tissue with the highest level of DNA damage, while liver had the lowest level of DNA damage during most of the months at both sites. Higher DNA damage level in blood cells was observed at the locality Višnjica, in gill cells at the locality Duboko, while the level of DNA damage in liver was approximately the same at both localities. Based on the highest level of histopathological index of gills at the locality Duboko gills were slightly to moderately damaged, while at the locality Višnjica gills were moderately to heavily damaged. At both localities liver had higher level of histopathological alterations in comparison to gills. Overall, gills as the first organ in direct contact with contaminants form water showed higher level of examined elements and DNA damage, while the liver as the main organ for processing contaminants from water and food showed higher level of histopathological alterations. Examined fish species proved to be useful bioindicators for in situ assessment of the pollution effects." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173045/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "površinske vode", "mikrobiološko zagaŤenje", "Abramis brama", "Blicca bjoerkna", "Ballerus sapa", "biomarkeri", "ekogenotoksikologija", "DNK oštešenje", "histopatologija", "metali i metaloidi" ]
[ "surface water", "microbiological pollution", "Abramis brama", "Blicca bjoerkna", "Ballerus sapa", "biomarkers", "ecogenotoxicology", "DNA damage", "histopathology", "metals and metalloids" ]
[ "Procena kvaliteta površinske vode na osnovu mikrobioloških parametara i ekogenotoksikoloških i histopatoloških analiza tkiva deverike Abramis brama (L., 1758) , krupatice Blicca bjoerkna (L., 1758) i crnooke deverike Ballerus sapa (P., 1814)" ]
[ "Assessment of surface water quality based on microbiological parameters and ecogenotoxicological and histopathological analysis of common bream Abramis brama (L., 1758), white bream Blicca bjoerkna (L., 1758) and white-eye bream Ballerus sapa (P., 1814) tissues" ]
doctoralThesis
[ "BY-NC-ND" ]
Вуковић-Гачић, Бранка; Рашковић, Божидар; Гачић, Зоран; Коларевић, Стоимир; Ленхардт, Мирјана; Костић-Вуковић, Јована М.; Процена квалитета површинске воде на основу микробиолошких параметара и екогенотоксиколошких и хистопатолошких анализа ткива деверике Aбрамис брама (Л., 1758) , крупатице Блицца бјоеркна (Л., 1758) и црнооке деверике Баллерус сапа (П., 1814); Процена квалитета површинске воде на основу микробиолошких параметара и екогенотоксиколошких и хистопатолошких анализа ткива деверике Aбрамис брама (Л., 1758) , крупатице Блицца бјоеркна (Л., 1758) и црнооке деверике Баллерус сапа (П., 1814);
[ "https://nardus.mpn.gov.rs/bitstream/id/1536/IzvestajKomisije17881.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1535/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1535/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1536/IzvestajKomisije17881.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_10055" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/10972
123456789-10972.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:19550/bdef:Content/download
no
Morfološka studija pigidijalnih žlezda i analiza hemijskog sastava njihovih sekreta kod odabranih vrsta trčuljaka (Insecta: Coleoptera: Carabidae)
Morphological study of the pygidial glands and analysis of the chemical composition of the secretions of selected ground beetle species (Insecta: Coleoptera: Carabidae)
[ "Ćurčić, Srećko" ]
[ "Perić-Mataruga, Vesna", "Vujisić, Ljubodrag", "Ćurčić, Srećko" ]
Vesović, Nikola R.
2019-04-22T11:59:02
[ "2019-04-22T11:59:02", "2020-07-03T08:07:38" ]
2019-02-12
[ "https://nardus.mpn.gov.rs/handle/123456789/10972", "http://eteze.bg.ac.rs/application/showtheses?thesesId=6719", "https://fedorabg.bg.ac.rs/fedora/get/o:19550/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025214898" ]
[ "Kao odgovor na terestrični način života, zglavkari, a naročito insekti, su razvili niz adaptacija koje su omogućile najpre opstanak, a potom i kolonizaciju gotovo svih ekoloških niša u novoj sredini. Insekti su ekstremno diverzifikovana grupa organizama zahvaljujući svakako i činjenici da poseduju veliki biohemijski potencijal. Sekreti koje produkuju insekti imaju najrazličitije namene: u pitanju su iritanti i/ili repelenti protiv predatora, otrovi za imobilizaciju i ubijanje plena, feromoni, itd. Svi pomenuti hemijski produkti, sa ulogom u intra- i interspecijskim interakcijama su najčešće sekundarni metaboliti, tj. produkti poreklom od jedinjenja koja učestvuju u primarnim biohemijskim procesima nastalim različitim hemijskim transformacijama. Veliki asortiman antipredatorske odbrane trčuljaka podrazumeva morfološke, ponašajne i biohemijske strategije. Hemijska odbrana je izuzetno efikasna kod adultnih trčuljaka i podrazumeva izbacivanje produkata pigidijalnih žlezda u vidu odbrambenih sekreta. Pigidijalne žlezde kao parne dorzalne invaginacije telesnog zida u posteriornom delu abdomena su univerzalno prisutne kod Carabidae i ostalih pripadnika nadporodice Caraboidea. Svaka žlezda se sastoji od agregacije sferičnih ili manje-više izduženih sekretornih lobusa (acinusa), u kojima su sekretorne ćelije raspoređene oko centralnog (aksijalnog) sabirnog lumena. Sekreti se dalje sprovode dugim, glavnim sabirnim kanalom do rezervoara za skladištenje. Zidovi rezervoara su obloženi glatkom muskulaturom i promenljive su debljine. Rezervoar se sužava u cilindričnu cev (eferentni kanal), koja se otvara u spoljašnju sredinu. Komponente sekreta detektovane hemijskim analizama moguće je grupisati u deset glavnih kategorija: (1) hinoni, (2) aldehidi, (3) alkoholi, (4) estri, (5) fenoli, (6) karboksilne kiseline, (7) ketoni, (8) monoterpeni, (9) nitrili i (10) ugljovodonici. Ciljevi ove doktorske disertacije usmereni su na dopunjavanje i proširivanje znanja o građi egzokrinih pigidijalnih žlezda i hemijskom sastavu njihovih sekreta kod trčuljaka. U ovoj studiji su analizirane adultne jedinke 27 vrsta trčuljaka iz 13 rodova i pet potporodica sakupljene na teritorijama Srbije i Crne Gore..." ]
[ "In response to the terrestrial lifestyle, arthropods (especially insects) developed a series of adaptations that firstly enabled the survival, and then the colonization of almost all ecological niches in the new environment. Insects are an extremely diversified group also due to the fact that they have a great biochemical potential. Secretions produced by insects have a variety of uses: irritants and/or repellents against predators, immobilization and killing of pray, pheromones, etc. All of the mentioned chemical products with the role in intra- and interspecfic interactions are usually secondary metabolites, i.e., products originated from compounds that participate in primary biochemical processes by different chemical transformations. A large assortment of antipredator defense of ground beetles involves morphological, behavioral and biochemical strategies. An extremely effective way of defending against predators in adult beetles is via chemicals which are discharged as pygidial gland products in the form of defense secretions. Pygidial defensive glands are dorsal body wall invaginations in the posterior part of the abdomen, and are universally present in Carabidae and other members of the Caraboidea superfamily. Each gland consists of an aggregation of spherical or more or less elongate secretory lobes (acini), in which secretory cells are arranged around the central (axial) collecting lumen. Secretions are further transported by a long main collecting canal to a storage reservoir. The reservoir walls are coated with smooth muscles of variable thicknesses. The reservoirs are continuing into cylindrical tubes (efferent ducts) which open into the environment. Chemical components of the pygidial secretions in Carabidae can be grouped into ten main categories: (1) quinones, (2) aldehydes, (3) alcohols, (4) esters, (5) phenols, (6) carboxylic acids, (7) ketones, (8) monoterpenes, (9) nitriles, and (10) hydrocarbons. The goals of this doctoral dissertation are focused on complementing and expanding knowledge on the morphological structure of exocrine pygidial glands and the chemical composition of their secretions in ground beetles..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173038/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Carabidae", "morfologija i anatomija", "pigidijalne žlezde", "alomonski sekreti", "GC-MS" ]
[ "Carabidae", "morphology and anatomy", "pygidial glands", "allomonal secretions", "GC-MS" ]
[ "Morfološka studija pigidijalnih žlezda i analiza hemijskog sastava njihovih sekreta kod odabranih vrsta trčuljaka (Insecta: Coleoptera: Carabidae)" ]
[ "Morphological study of the pygidial glands and analysis of the chemical composition of the secretions of selected ground beetle species (Insecta: Coleoptera: Carabidae)" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "http://nardus.mpn.gov.rs/bitstream/id/1660/IzvestajKomisije19684.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1659/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1660/IzvestajKomisije19684.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1659/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_10972" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2107
123456789-2107.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7101/bdef:Content/download
no
Uticaj N-acetil-L-cisteina in vitro na proliferaciju i diferencijaciju matičnih ćelija zubne pulpe mlečnih zuba dece
Effect on N-acetil-L-cysterine in vitro on proliferation and differentiation of children deciduous teeth dental pulp stem cells
[ "Kovačević-Filipović, Milica" ]
[ "Matić, Gordana", "Borozan, Sunčica", "Todorović, Vera", "Popović, Tamara" ]
Debeljak Martačić, Jasmina
2016-01-05T11:47:30
[ "2016-01-05T11:47:30", "2020-07-03T08:09:45" ]
2013-12-20
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=784", "https://nardus.mpn.gov.rs/handle/123456789/2107", "https://fedorabg.bg.ac.rs/fedora/get/o:7101/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024645554" ]
[ "Zubna pulpa vodi poreklo od embrionalnog ektomezenhima i potencijalno je vaţan izvor mezenhimalnih matičnih ćelija (MMĆ) za regeneraciju svih tkiva kraniofacijalne regije koja su, takođe, poreklom od ektomezenhima. N-acetil-L-cistein (NAC) je antioksidant koji moţe da ima uticaj na terapijsku primenu MMĆ. Cilj ovog rada je bio da utvrdi da li ćelije izolovane iz zubne pulpe mlečnih zuba dece i ekspandirane in vitro, imaju karakteristike MMĆ i da ispita dejstvo NAC-a na njihovu proliferaciju i diferencijaciju, kao i da se utvrdi da li NAC utiče na aktivnost enzima antioksidativne zaštite, oksidativno oštećenje različitih ćelijskih struktura i metabolizam glukoze. Metodom tkivnog eksplanta, iz šest pulpi mlečnih zuba dece, je dobijena početna populacija adheretnih ćelija. Za procenu broja CFU-F (eng. Colony Forming Unit – Fibroblast), ćelije su zasejavane u maloj gustini. Proliferativni potencijal i vreme udvajanja broja ćelija u kulturi je praćeno brojanjem ćelija posle tripsinizacije subkonfluentnih kultura, svaka 4 dana, tokom 40 dana. Protočna citometrija je korišćena za imunofenotipizaciju ex vivo umnoţenih ćelija, određivanje aktivnosti aldehid- dehidrogenaze (ALDH), brzinu ulaska ćelija u sintetsku (S) fazu ćelijskog ciklusa, određivanje broja ćelijskih deoba i detekciju apoptoze. Aktivnost -galaktozidaze (SA-β-Gal), određivana je korišćenjem citohemije. Diferencijacija ekspandiranih ćelija u smeru osteogeneze, hondrogeneze i adipogeneze izvedena je korišćenjem komercijalnih medijuma. Promene na ćelijama tokom osteogene diferencijacije su praćene preko aktivnosti alkalne fosfataze spektrofotometrijski, deponovanja kalcijuma u ekstracelularni matriks (bojenje alizarin crvenim) i pojave osteokalcina (imunocitohemija). Hondrogena diferencijacija u peletama je praćena određivanjem kolagena tip I (in situ hibridizacija), kolagena tip 2 (imunohistohemija) i određivanjem koncentracije glikozaminoglikana (spektrofotometrija). Adipogena diferencijacija je ispitana vizuelizacijom masnih kapljica (Oil red O bojenje). Aktivnost katalaze i superoksid-dismutaze (SOD) u ćelijskom lizatu je određena spektrofotometrijski. Koncentracija malondialdehida (MDA) je određena reakcijom sa tiobarbiturnom kiselinom (TBA). Karbonilni derivati proteina određivani su reakcijom sa 2,4 -dinitrofenilhidrazinom. Posle ekstrakcije ukupnih lipida i metilovanja masnih kiselina, metil-estri masnih kiselina su razdvajani gasno-tečnom hromatografijom (GLC), a koncentracija zasićenih (SFA), mononezasićenih (MUFA) i i polinezasićenih masnih kiselina (PUFA) je izraţena procentualno u odnosu na ukupne masne kiseline. Izoenzimski oblici laktat-dehidrogenaze (LDH1, LDH2, LDH3, LDH4 i LDH5) su određivani vertikalnom elektroforezom. Sva navedena merenja su izvedena bez i sa različitim koncentracijama NAC-a (0,1 mM, 1 mM i 2 mM). Naši rezultati su pokazali da je iz zubne pulpe mlečnih zuba dece dobijena populacija ćelija koja formira značajan broj CFU-F (4% izolovanih ćelija) i kontinuirano proliferiše tokom 40 dana, bez opadanja vremena potrebnog za udvajanje njihovog broja u kulturi. Ipak, dobijena populacija ćelija je bila heterogena po brzini deoba. Oko 12% ćelija je posle tri dana kultivacije bilo podeljeno manje od četiri puta, dok se ostatak ćelija podelio više od četiri puta. Vijabilitet ćelija je bio u proseku oko 95%, a svega 3% ćelija je bilo pozitivno na β-galaktozidazu. Tokom čitavog vremena kultivacije kapacitet za diferencijaciju u osteoblaste, adipocite i hondrocite se nije menjao. Gotovo sve ćelije su u pasaţi četiri eksprimirale CD44, CD73, kolagen tipa I, CD29, CD90 i osteonektin. Deo ćelija je eksprimirao STRO-1, CD146 i CD106. Marker matičnih ćelija hematopoeze nije detektovan u našem sistemu kultivacije. Opseg u kome se kretao procenat ćelija koje pokazuju povišenu aktivnost ALDH je iznosio od 4% do 24% i bio je u negativnoj korelaciji sa vremenom udvajanja ćelija u kulturi..." ]
[ "Dental pulp originates from the embryonic ectomesenchyme and represents potentially important source of mesenchymal stem cells (MSCs) with the ability to regenerate all tissues of the craniofacial region, originating from the ectomesenchyme, too. N-acetyl-L-cysteine (NAC) is an antioxidant that may have an impact on the therapeutic use of MSCs. The aim of this study was to determine whether the cells isolated from the dental pulp of children deciduous teeth of children and expanded in vitro, have the characteristics of MSC, to examine the effect of NAC on their proliferation and differentiation and to determine whether NAC influences the metabolism of glucose, the activity of antioxidant enzymes and whether it reduces oxidative damage of various cellular macromolecules. The initial cell population was obtained from six pulps of deciduous teeth using ex vivo tissue explants method. The number of colonies (Colony Forming Unit – Fibroblast; CFU-F) was determined by seeding the low density cell culture. Proliferative potential and population doubling time of the cells in culture were followed by counting the cells after tripsinization of subconfluent cultures, every 4 days, respectively, during 40 days of cultivation. Flow cytometry was used for cell immunophenotypisation, aldehyde dehydrogenase (ALDH) activity determination, number of cells in different phases of cell cycle, number of cell divisions and percentage of cells in apoptosis. Activity of β-galactosidase (SA-β-Gal), was determined using cytochemistry. Osteogenesis, chondrogenesis and adipogenesis were induced using complete commercial mediums. Osteogenic differentiation was monitored via alkaline phosphatase activity (spectrophotometry), deposition of calcium in the extracellular matrix (Alizarin red staining) and the appearance of osteocalcin (immunocytochemistry). Chondrogenic differentiation was followed by measuring collagen type I (in situ hybridization), collagen type 2 (immunohistochemistry) and the determination of the concentration of glycosaminoglycans (spectrophotometry). Adipogenic differentiation was examined by visualization of fat droplets (Oil Red O staining). Activity of catalase and superoxide dismutase (SOD) in cell lysates was determined spectrophotometrically. Malondialdehyde (MDA) was determined by reaction with thiobarbituric acid (TBA). Carbonyl derivatives of proteins were determined by reaction with 2,4-dinitrophenylhydrazine. After total lipid extraction and methylation of fatty acids, fatty acid methyl esters were separated by gas-liquid chromatography, and the concentration of saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids was expressed as percentage of total fatty acids detected in the sample. Isoenzyme forms of lactate dehydrogenase (LDH1, LDH2, LDH3, LDH4 and LDH5) were determined by vertical electrophoresis. All the above measurements were made with and without different concentrations of NAC (0,1 mM, 1 mM and 2 mM). Our results showed that the dental pulp of deciduous teeth of children had population of cells that formed a significant number of CFU-F (4% of the isolated cells) and continually proliferated for 40 days without decrease in the population doubling time. However, the resulting cell population was heterogeneous in terms of the division velocity. After three days of cultivation, around 12% of the cells were divided less than four times, while the remaining cells divided more than four times. Viability of cells was in average 95%, and only 3% of the cells were positive for β-galactosidase. During the entire time of the cultivation, expanded cells retained the ability to differentiate into osteoblasts, adipocytes and chondrocytes. Almost all cells expressed CD44, CD73, collagen type I, CD29, CD90 and osteonectin. Part of the cells expressed STRO-1, CD146 and CD106. Marker of hematopoietic stem cells have not been detected. Elevated ALDH activity ranged from 4% to 24% and was negatively correlated with the population doubling time..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "matiĉne ćelije zubne pulpe", "N-acetil-L-cistein", "proliferacija", "diferencijacija", "katalaza", "superoksid-dismutaza", "laktat-dehidrogenaza", "oksidativno oštećenje" ]
[ "dental pulp stem cells", "N acetyl-L-cysteine", "proliferation", "differentiation", "catalase", "superoxide dismutase", "lactate dehydrogenase", "oxidative damage" ]
[ "Uticaj N-acetil-L-cisteina in vitro na proliferaciju i diferencijaciju matičnih ćelija zubne pulpe mlečnih zuba dece", "Effect on N-acetil-L-cysterine in vitro on proliferation and differentiation of children deciduous teeth dental pulp stem cells" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Ковачевић-Филиповић, Милица; Поповић, Тамара; Борозан, Сунчица; Тодоровић, Вера; Матић, Гордана; Дебељак Мартачић, Јасмина; Утицај Н-ацетил-Л-цистеина ин витро на пролиферацију и диференцијацију матичних ћелија зубне пулпе млечних зуба деце; Утицај Н-ацетил-Л-цистеина ин витро на пролиферацију и диференцијацију матичних ћелија зубне пулпе млечних зуба деце;
[ "https://nardus.mpn.gov.rs/bitstream/id/2160/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2160/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2107" ]
10.2298/bg20131220debeljakmartacic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2012
123456789-2012.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2342/bdef:Content/download
no
Analiza učestalosti i tipova mutacija KRAS i BRAF gena u karcinomima kolorektuma u populaciji Srbije
Frequency and mutation type analysis of KRAS and BRAF genes in colorectal carcinomas in Serbian population
[ "Stamenković-Radak, Marina" ]
[ "Janković, Radmila", "Mališić, Emina" ]
Jakovljević, Ksenija V.
2016-01-05T11:45:15
[ "2016-01-05T11:45:15", "2020-07-03T08:11:23" ]
2012-07-09
[ "https://nardus.mpn.gov.rs/handle/123456789/2012", "http://eteze.bg.ac.rs/application/showtheses?thesesId=37", "https://fedorabg.bg.ac.rs/fedora/get/o:2342/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024495282" ]
[ "Uvod: Kolorektalni kancer (CRC) se po svojoj učestalosti i smrtnosti nalazi u samom vrhu svih kancera kod oba pola, kako u svetu, tako i u Srbiji. Za ranu kancerogenezu ovog maligniteta karakteristične su somatske genske promene KRAS i BRAF protoonkogena. Mutacije ovih gena predstavljaju molekularne biomarkere odgovora na ciljanu terapiju, dok su rezultati o njihovoj ulozi kao prognostičkih i prediktivnih faktora kontradiktorni. Podaci o učestalosti i tipu pojedinačnih KRAS i BRAF mutacija kod CRC-a u našoj zemlji su malobrojni, a njihova veza sa kliničko-histopatološkim karakteristikama tumora, karakteristikama bolesnika i tokom bolesti nije dovoljno ispitana. Cilj: Utvrđivanje prisustva, učestalosti i tipa KRAS mutacija i specifične BRAF p.V600E mutacije kod bolesnika sa CRC-om u populaciji Srbije i povezanost prisustva i tipa ovih mutacija sa kliničko-histopatološkim karakteristikama tumora i karakteristikama bolesnika. Takođe, ispitivanje navedenih mutacija kao prediktivnih biomarkera adjuvantne i EGFR-ciljane terapije. Materijal i metode: U radu je analizirano 188 parafinskih uzoraka karcinoma kolorektuma. DNK je izolovana komercijalnim kitom za izolaciju genomske DNK iz parafinskih tkiva (QIAamp® DNA FFPE Tissue kit, QIAGEN). Detekcija prisustva i tipa mutacija kodona 12 i 13 KRAS gena urađena je pomoću dva dijagnostički validirana testa bazirana na eseju lančane reakcije polimeraze (PCR) u realnom vremenu (DxS TheraScreen K-RAS PCR kit, QIAGEN) i PCR reakciji praćenoj reverznom hibridizacijom (KRAS StripAssayTM, ViennaLab Diagnostics). Detekcija p.V600E mutacije u BRAF genu urađena je analizom krive topljenja (HRM) PCR produkta i metodom direktnog sekvenciranja. Za statističku obradu podataka korišćeni su Fišerov egzaktni, χ2 i Log-Rank testovi..." ]
[ "Introduction: Colorectal cancer (CRC) incidence and mortality rates are among the highest in both sexes worldwide, as well as in Serbia. The early carcinogenesis of this malignancy is characterized by somatic gene alterations of KRAS and BRAF protooncogenes. Mutations of these genes represent molecular biomarkers of response to targeted therapy, while their roles as prognostic and predictive factors are still contradictory. There are few data about the frequency and types of single KRAS and BRAF mutations in CRC in our country, and their correlation with clinicohistopathological characteristics of tumor, characteristics of patients and the course of disease is still to be established. Aim: Determination of presence, frequency and types of KRAS mutations and specific BRAF p.V600E mutation in CRC patients in Serbian population and correlation of presence and types of these mutations with tumor clinicohistopathological characteristics and patient characteristics. Also, the examination of specified mutations as potential predictive biomarkers of adjuvant and EGFR-targeted therapy. Material and methods: In this study 188 CRC paraffin samples were analyzed. DNA was extracted using the commercial kit for genomic DNA isolation from paraffin tissues (QIAamp® DNA FFPE Tissue kit, QIAGEN). Detection of presence and types of KRAS codon 12 and 13 mutations was performed with two validated diagnostic tests based on real-time polymerase chain reaction (PCR) assay (DxS TheraScreen K-RAS PCR kit, QIAGEN) and PCR reaction followed by reverse hybridization (KRAS StripAssayTM, ViennaLab Diagnostics). BRAF p.V600E mutation was assessed by high resolution melting (HRM) analysis of PCR products and automatic DNA sequencing. Fisher exact, χ2 and Log-Rank tests were used for statistical analysis..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41026/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Kolorektalni karcinom", "KRAS gen", "BRAF gen", "mutacije" ]
[ "Colorectal carcinoma", "KRAS gene", "BRAF gene", "mutations" ]
[ "Analiza učestalosti i tipova mutacija KRAS i BRAF gena u karcinomima kolorektuma u populaciji Srbije", "Frequency and mutation type analysis of KRAS and BRAF genes in colorectal carcinomas in Serbian population" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Стаменковић-Радак, Марина; Јанковић, Радмила; Малишић, Емина; Јаковљевић, Ксенија В.; Aнализа учесталости и типова мутација КРAС и БРAФ гена у карциномима колоректума у популацији Србије; Aнализа учесталости и типова мутација КРAС и БРAФ гена у карциномима колоректума у популацији Србије;
[ "http://nardus.mpn.gov.rs/bitstream/id/2509/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2509/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2012" ]
10.2298/bg20120709jakovljevic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2071
123456789-2071.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3503/bdef:Content/download
no
Transkripciona regulacija ekspresije humanog SOX18 gena
Transcriptional regulation of the human SOX18 gene expression
[ "Stevanović, Milena" ]
[ "Stevanović, Milena", "Brajušković, Goran", "Brajušković, Goran", "Radović, Svetlana" ]
Petrović, Isidora
2016-01-05T11:46:36
[ "2016-01-05T11:46:36", "2020-07-03T08:09:09" ]
2012-12-05
[ "https://nardus.mpn.gov.rs/handle/123456789/2071", "http://eteze.bg.ac.rs/application/showtheses?thesesId=93", "https://fedorabg.bg.ac.rs/fedora/get/o:3503/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024552370" ]
[ "Humani SOX18 gen pripada familiji SOX gena koji kodiraju DNK-vezujuće proteine koji imaju ulogu transkripcionih faktora i arhitektonskih komponenti hromatina. SOX18 gen ima važnu ulogu u regulaciji vaskularnog razvića, i učestvuje u specifikaciji i diferencijaciji endotelijalnih ćelija, angiogenezi i limfangiogenezi. Mutacije u SOX18 genu kod čoveka su povezane sa sidromom Hipotrihoza-Limfedem-Talengiektazija (eng. Hypotrichosis-Lymphedema-Talengiectasia) čije su karakteristike poremećaji u razviću dlake, vaskularnog i limfnog sistema. Iako do danas ima dosta podataka o ulozi SOX18 gena u procesima vaskularogeneze, angiogeneze i limfangiogeneze, još uvek se malo zna o molekularnim mehanizmima uključenim u regulaciju ekspresije ovog gena. Osnovni ciljevi, istraživanja predstavljenog u ovoj tezi, bili su analiza transkripcione regulacije ekspresije humanog SOX18 gena, kao i analiza uticaja pro-angiogenetskih faktora i inhibitora angiogeneze na ekspresiju ovog gena u endotelijalnim ćelijama. Ispitivanja transkripcione regulacije su obuhvatala analizu uloge određenih transkripcionih faktora u regulaciji aktivnosti SOX18 promotora, kao i u regulaciji endogene ekspresije SOX18 gena. Transkripciona regulacija je ispitivana u dva model sistema: HeLa ćelijama, koje su korišćena kao tumorski model sistem i EA.hy926 ćelijama, koje su korišćene kao endotelijalni model sistem. In silico analizom su identifikovana potencijalna vezivna mesta za različite transkripcione faktore koji mogu biti uključeni u regulaciju ekspresije SOX18 gena. Za dalju funkcionalnu analizu odabrani su transkripcioni faktori Sp3, ZBP-89, NF-Y i EGR1. Na osnovu eksperimenata smanjene elektroforetske pokretljivosti, funkcionalnih/mutacionih analiza, i analiza ekspresije u nativnom kontekstu, pokazano je da su transkripcioni faktori Sp3 i ZBP-89 negativni, a NF-Y i EGR1 pozitivni regulatori transkripcije humanog SOX18 gena. Na ovaj način pokazana je funkcionalna veza između transkripcionih faktora Sp3, ZBP-89, NF-Y i EGR1 i SOX18 gena i omogućeno je bolje razumevanje, dela, transkripcione kontrole ekpresije ovog gena..." ]
[ "Human SOX18 gene belongs to the family of SOX genes that encode DNA-binding proteins, which display properties of both transcription factors and architectural components of chromatin. SOX18 gene plays important role in vascular development, endothelial cell specification and differentiation, angiogenesis and lymphangiogenesis. Mutations in human SOX18 gene are associated with Hypotrichosis-Lymphedema-Talengiectasia syndrome, characterized by defects in hair, vascular and lymphatic development. Despite the mounting evidence that SOX18 gene is an important player in vasculogenesis, angiogenesis and lymphangiogenesis, little is known about molecular mechanisms involved in the regulation of its expression. The aim of this study was to investigate transcriptional regulation of the human SOX18 gene expression, as well as the effecs of pro- and anti-angiogenic factors on SOX18 expression in endothelial cells. Analyses of transcriptional regulation included identification of transcription factors that are involved in regulation of SOX18 promoter activity, as well as in regulation of endogenous SOX18 expression. Two model systems were used: HeLa cells, as a tumor model system, and EA.hy926 cells, as an endothelial model system. Several putative transcription factor binding sites were identified by in silico analysis of the SOX18 promoter sequence. Transcription factors Sp3, ZBP-89, NF-Y and EGR1 were selected for further functional analysis. By in vitro binding assays, functional/mutagenesis assays and analyses of endogenous SOX18, it has been shown that transcription factors Sp3 and ZBP-89 act as negative regulators, while NF-Y and EGR1operate as positive regulators of SOX18 gene expression. These results gave first functional link between Sp3, ZBP-89, NF-Y and EGR1 transcription factors and SOX18 gene, thus providing better understanding of transcriptional regulation of SOX18 gene expression..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173051/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "SOX18", "transkripcija", "promotor", "transkripcioni faktor", "endotelijalne ćelije", "angiogeneza" ]
[ "SOX18", "transcription", "promoter", "transcription factor", "endothelial cells", "angiogenesis" ]
[ "Transkripciona regulacija ekspresije humanog SOX18 gena", "Transcriptional regulation of the human SOX18 gene expression" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Стевановић, Милена; Стевановић, Милена; Брајушковић, Горан; Радовић, Светлана; Брајушковић, Горан; Петровић, Исидора;
[ "https://nardus.mpn.gov.rs/bitstream/id/2023/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2023/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2071" ]
10.2298/bg20121205petrovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2016
123456789-2016.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2128/bdef:Content/download
no
Korelacija prisustva bakteriocinskih gena i proizvodnje bakteriocina prirodnih izolata Lactobacillus casei/paracasei grupe
Correlation between the presence of bacteriocin genes and bacteriocin production in natural isolates of Lactobacillus casei/paracasei group
[ "Topisirović, Ljubiša" ]
[ "Fira, Đorđe", "Kojić, Milan" ]
Tolinački, Maja S.
2016-01-05T11:45:17
[ "2016-01-05T11:45:17", "2020-07-03T08:10:35" ]
2012-06-04
[ "https://nardus.mpn.gov.rs/handle/123456789/2016", "http://eteze.bg.ac.rs/application/showtheses?thesesId=7", "https://fedorabg.bg.ac.rs/fedora/get/o:2128/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=" ]
[ "Veliki broj vrsta roda Lactobacillus zauzima ključno mesto u proizvodnji fermentisanih mlečnih i mesnih proizvoda, prisutni su i u fermentisanom povrću i proizvodima od žitarica. Laktobacili se takođe koriste i u medicini usled pozitivnih efekata koje pojedini sojevi imaju na zdravlje domaćina. Pojedini sojevi laktobacila imaju i probiotski potencijal zahvaljujući sposobnosti produkcije različitih antimikrobnih jedinjenja, egzopolisaharida (EPS), proteinaza i dr. Vrste roda Lactobacillus poseduju potencijal da inhibiraju rast konkurentskih mikroorganizama u ekološkim nišama koje naseljavaju, korišćenjem širokog spektra različitih odbrambenih mehanizama uključujući proizvodnju velikog broja metaboličkih nusproizvoda, kao i mnogih biološki aktivnih agenasa proteinske prirode kao što bakteriocini. Sojevi koji proizvode više od jednog bakteriocina sa uskim, ali različitim inhibitornim spektrom, imaju veće šanse za opstanak u okruženju koje dele sa blisko srodnim vrstama sa kojima su u kompeticiji za iste nutrijente. Veliki broj sojeva proizvođača bakteriocina objašnjava se činjenicom da su bakteriocinske genetičke determinante često locirane na mobilnim genetičkim elementima, kao što su konjugativni plazmidi ili transpozoni, što omogućava njihovu široku distribuciju putem horizontalnog transfera gena. Cilj ove doktorske teze bio je da se utvrdi antimikrobni potencijal 52 soja Lactobacillus casei/paracasei grupe, zatim da se utvrdi rasprostranjenost bakteriocinskih gena neophodnih za produkciju bakteriocina BacSJ i acidocina 8912, a potom i korelacija prisustva bakteriocinskih gena i proizvodnje bakteriocina kod analiziranih sojeva. Ovakav pristup omogućio je identifikaciju potencijalnih bakteriocinskih gena kao i novih bakteriocina nezavisno od toga da li je analizirani bakterijski soj identifikovan kao proizvođač bakteriocina..." ]
[ "A large number of Lactobacillus species play an important role in the production of fermented dairy products and meat products, and they are also present in fermented vegetables and grain products. Lactobacilli are used in medicine due to the positive effects that some strains have on the health of the host. Some Lactobacillus strains have a probiotic potential due to their ability to produce various antimicrobial compounds, exopolysaccharides (EPS), proteinases and other. Species of the Lactobacillus genus have the potential to inhibit the growth of competing microorganisms in the ecological niches they inhabit, using a wide range of various defense mechanisms including the production of a large number of secondary metabolic products, as well as many biologically active proteinaceous agents, such as bacteriocins. Strains that produce more than one bacteriocin with a narrow but different inhibitory spectrum have a better chance to survive in an environment shared with closely related species with which they are in competition for the same nutrients. A presence of huge number of bacteriocin producing strains could be explained by the fact that the bacteriocin genes were often located on mobile genetic elements such as conjugative plasmids or transposons, allowing their wide distribution via horizontal gene transfer. The aim of this doctoral dissertation was to determine the antimicrobial potential of 52 strains of Lactobacillus casei/paracasei group, followed by a comparative screening of the bacterial genomes in order to determine the distribution of BacSJ and acidocin 8912 encoding genes, and also to determine the correlation of presence of bacteriocin genes and bacteriocin production in the analyzed strains. This approach enabled identification of potentially new bacteriocins and putative bacteriocin genes regardless of whether the analyzed bacterial strains produced bacteriocin..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Lactobacillus", "bakteriocini", "abcT i acc geni", "plazmid" ]
[ "Lactobacillus", "bacteriocin", "abcT and acc genes", "plasmid" ]
[ "Korelacija prisustva bakteriocinskih gena i proizvodnje bakteriocina prirodnih izolata Lactobacillus casei/paracasei grupe", "Correlation between the presence of bacteriocin genes and bacteriocin production in natural isolates of Lactobacillus casei/paracasei group" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Тописировић, Љубиша; Фира, Ђорђе; Којић, Милан; Толиначки, Маја С.; Корелација присуства бактериоцинских гена и производње бактериоцина природних изолата Лацтобациллус цасеи/парацасеи групе; Корелација присуства бактериоцинских гена и производње бактериоцина природних изолата Лацтобациллус цасеи/парацасеи групе;
[ "https://nardus.mpn.gov.rs/bitstream/id/2344/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2344/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2016" ]
10.2298/bg20120604tolinacki
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2077
123456789-2077.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:5393/bdef:Content/download
no
Modelovanje ekoloških niša Podarcis sicula i P. melisellensis (Sauria, Lacertidae) u eumediteranu i submediteranu istočnog Jadrana
Ecological niche modelling of Podarcis sicula and P. melisellensis (Sauria, Lacertidae) in the eumediterranean and submediterranean of the eeastern Adriatic sea
[ "Kataranovski, Dragan" ]
[ "Jovanović, Aleksandar", "Krpo-Ćetković, Jasmina", "Vukov, Tanja", "Lakušić, Dmitar" ]
Stamenković, Srđan Ž.
2016-01-05T11:46:39
[ "2016-01-05T11:46:39", "2020-07-03T08:09:16" ]
2013-04-18
[ "https://nardus.mpn.gov.rs/handle/123456789/2077", "http://eteze.bg.ac.rs/application/showtheses?thesesId=156", "https://fedorabg.bg.ac.rs/fedora/get/o:5393/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=43480079" ]
[ "Rad obuhvata modelovanje ekoloških niša dve vrste guštera Podarcis sicula i P. melisellensis na dva područja kopnene oblasti istočnog Jadrana povezane sa analizom rizika izumiranja metapoulacionih demografskih modela formiranih na osnovu prostornih niša. Obe vrste su su od opisivanja u XIX veku bile epizodično predmet zoogeografskih, ekoloških i evolucionih istraživanja u Jadranskoj oblasti. Brojni dosad prikupljeni bionomski i ekološki podaci o obe vrste na istraživanom području, međutim, uglavnom nisu stavljeni u celovit kvantitativni koncept, velikim delom ostajući na nivou manje ili više detaljnog kvalitativnog opisa. Postojeći kvantitativni podaci, prikazani su kao “lateralni” ili “akcesorni” rezultati istraživanja čiji je osnovni cilj bio sasvim drugačiji te je njihova upotrebna vrednost u potpunosti podređena kontekstu realizovanih istraživanja. Posebno se to odnosi na autekološka i populaciono-ekološka istraživanja. Ostrvske populacije su znatno bolje istražene od kopnenih. Realizujući kvantitativno modeliranje niša kopnenih populacija, pokušali smo da makar malo taj problem ublažimo. U modelovanju ekoloških niša korišćeno je 47 kvantitativnih i 9 kvalitativnih EGV, u zavisnosti od metode, koje su formirane na osnovu globalnih baza podataka. Obuhvaćena područja, oko 100 km2 po površini, nalazila su se u Poljicama (okolina Splita, Hrvatska) i šireg regiona Boke Kotorske (Crna Gora) na kojoj su detaljno mapirane obe vrste. Korišćene su tri metode sa prisustvom vrsta (P/O, ENFA, MaxEnt i GARP), četiri koje zahtevaju prisustva/odsustva (P/A, SpFA, PLS, GRM, DA), i tri koje mogu koristiti oba tipa podataka (P/O ili P/A, GAM, MARS, BRT). Na osnovu profila stanišne povoljnosti formirane su detaljne karte prostornih niša. Sve metode su identifikovale centre povoljnostog staništa istog ili sličnog položaja i obuhvata. P/A metode su identifikovale mnogo šire zone suboptimalnih staništa za obe vrste na oba područja. EGV korišćene za analizu su ocenjene po čestoći odabira u modelima i minimalni skup promenljivih koji daju pouzdane predikcije je: ALT, *OVER1, *CONVEX1, SLOPE10, BIO1, *4, *5, *7, *8, *9, *10, *11, *12, *19, WB, PET, TOWNSFQ1, *TOPODST, *BLENGTH, AGRIFQ1, *TOPODST, *BLENGTH, OPENFQ1, *TOPODST, *BLENGTH, SPARSEFQ1, *TOPODST, *BLENGTH. Svi modeli niša su bili statistički značajni, a po uspešnosti predikciji ističu se MARS, PLS, GRM. Za područje Hrvatske, sve metode imaju lošiju uspešnost nego za područje Crne Gore. Modeli niša bili su uspešniji za Podarcis sicula na oba područja. Modeli ekoloških niša nisu transportabilni po područjima, zbog suviše velikih razlika u intenzitetu delovanja i prostornom rasporedu ekoloških faktora." ]
[ "Ecological niche models were generated for two lizard species, Podarcis sicula i P. melisellensis, in two mainland areas of the eastern Adriatic, and coupled with spatially-explicit PVA based on habitat suitabilty profiles generated by ENM. Both species have, since their description in the XIX century, been episodically studied from zoogeographical, ecological, and evolutionary aspects. However, a wealth of bionomic data collected by investigators was qualitative, lacking a comprehensive quantitative framewok, and as such are of limited value. The available bionomic and ecological data was largely presented as \"lateral\" or \"accessory\" data collected for a different scientific objective, and their utility is largely determined by the context of that research. Specifically, that problem pertains to the utility of reported autecological and population-ecological data. Mainland populations of both species were also much less studied than the island populations in the Adriatic. We addressed this problem by conducting quantitative niche-modelling research based on the mainland. For ecological niche modelling we used 47 quantitative and 9 qualitative EGV's, depending on the method, which were generated from global datasets. Both regions were cc. 100 km2 in area, and were located in Poljice (Split, Croatia) and the general region of Boka Kotorska (Montenegro) for we had which detailed distribution data. Three methods requiring presence/only data were used (P/O, ENFA, MaxEnt i GARP), four requiring presence/absence (P/A, SpFA, PLS, GRM, DA), and three which could use both (P/O or P/A, GAM, MARS, BRT). Habitat suitability profiles generated by these methods were used to map the spatial niches. All methods identified identical or very similar core areas of HS. P/A methods were much more liberal in assigning adjacent suboptimal HS zones for both species in both areas. EGV's selected by the methods were scored by frequency of selection in models, and a minimal subset generating reliable predictions was identified: ALT, *OVER1, *CONVEX1, SLOPE10, BIO1, *4, *5, *7, *8, *9, *10, *11, *12, *19, WB, PET, TOWNSFQ1, *TOPODST, *BLENGTH, AGRIFQ1, *TOPODST, *BLENGTH, OPENFQ1, *TOPODST, *BLENGTH, SPARSEFQ1, *TOPODST, *BLENGTH. All niche models were satistically significant, with MARS, PLS, GRM generally preforming better than the rest. For Croatia, all methods had lower performance than for Montenegro. Niche models were more reliable for Podarcis sicula in both areas. Large differences in context due to differences in intensity and spatial distibution of EGV's precluded model transportability over areas." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "Podarcis sicula", "Podarcis melisellensis", "modeliranje ekoloških niša", "modeliranje stanišne povoljnosti", "analiza rizika izumiranja populacija" ]
[ "Podarcis sicula", "Podarcis melisellensis", "ecological niche modelling", "habitat suitability modelling", "population viability analysis" ]
[ "Modelovanje ekoloških niša Podarcis sicula i P. melisellensis (Sauria, Lacertidae) u eumediteranu i submediteranu istočnog Jadrana", "Ecological niche modelling of Podarcis sicula and P. melisellensis (Sauria, Lacertidae) in the eumediterranean and submediterranean of the eeastern Adriatic sea" ]
[ "" ]
doctoralThesis
[ "BY" ]
Катарановски, Драган; Вуков, Тања; Крпо-Ћетковић, Јасмина; Лакушић, Дмитар; Јовановић, Aлександар; Стаменковић, Срђан Ж.; Моделовање еколошких ниша Подарцис сицула и П. мелиселленсис (Сауриа, Лацертидае) у еумедитерану и субмедитерану источног Јадрана; Моделовање еколошких ниша Подарцис сицула и П. мелиселленсис (Сауриа, Лацертидае) у еумедитерану и субмедитерану источног Јадрана;
[ "https://nardus.mpn.gov.rs/bitstream/id/2054/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2054/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2077" ]
10.2298/bg20130418stamenkovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2052
123456789-2052.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3481/bdef:Content/download
no
Kateholamini kao medijatori delovanja muških polnih hormona na timopoezu :
Catecholamines as mediators of male gonadal hormone action on thymopoiesis
[ "Leposavić, Gordana" ]
[ "Leposavić, Gordana", "Cvijić, Gordana", "Jasnić, Nebojša", "Kosec, Duško" ]
Pilipović, Ivan M.
2016-01-05T11:46:11
[ "2016-01-05T11:46:11", "2020-07-03T08:09:51" ]
2012-12-03
[ "https://nardus.mpn.gov.rs/handle/123456789/2052", "http://eteze.bg.ac.rs/application/showtheses?thesesId=79", "https://fedorabg.bg.ac.rs/fedora/get/o:3481/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024549554" ]
[ "Danas je široko prihvaćeno mišljenje da je progresivno smanjenje efikasnosti timopoeze, koje počinje u pubertetu, kauzalno povezano sa porastom koncentracije polnih hormona. Pored toga, i koncentracija kateholamina, toničnih inhibitora timopoeze posredstvom β-adrenergičih receptora, se u timusu povećava, počevši od pubertetnog perioda. Poznato je da zrele ćelije imunskog sistema (T-limfociti, makrofage i dendritske ćelije), i različiti tipovi epitelnih ćelija, imaju sposobnost sinteze kateholamina. Konačno, u različitim tkivima, muški polni hormoni utiču na sintezu kateholamina i ispoljavanje β-adrenergičkih receptora. Ova saznanja su nužno nametnula pitanje da li timociti i/ili ćelije strome timusa poseduju sposobnost sinteze kateholamina, i, ukoliko je odgovor potvrdan, da li i u kojim tipovima ćelija timusa hormoni testisa utiču na sintezu kateholamina i/ili ispoljavanje β2-adrenergičkog receptora i time, moguće, na modulatorno delovanje kateholamina na proces timopoeze. Imajući u vidu sve prethodno navedene nalaze, postavljeni su ciljevi ove disertacije: 1) da se utvrdi da li timociti i/ili ćelije strome timusa odraslih mužjaka pacova sintetišu kateholamine, i da se precizno definišu tipovi ćelija u ovom organu koji ispoljavaju β2-adrenergički receptor, 2) da se ispita da li orhidektomija u uzrastu od 30 dana, kada je timus pacova najosetljiviji na efekte kastracije, utiče na koncentraciju kateholamina i ispoljavanje β2-adrenergičkog receptora u timusu odraslih pacova, i, ako je odgovor potvrdan, 3) da se utvrdi da li se modulatorno delovanje kateholamina na timopoezu razlikuje kod orhidektomisanih i neorhidektomisanih životinja. Nađeno je da timociti, timusne epitelne ćelije i makrofage sadrže i sintetišu kateholamine. Osim toga, subpopulacije ovih tipova ćelija, takođe, ispoljavaju β2- adrenergički receptor. Orhidektomija u uzrastu od 30 dana je smanjila koncentraciju noradrenalina u timusu odraslih životinja, usled smanjenja gustine noradrenergičkih nervnih vlakana i ćelija strome timusa koje sadrže kateholamine i sadržaja noradrenalina u njima. Pored toga, u timusu ovih životinja je detektovano i smanjenje ekspresije iRNK za β2-adrenergički receptor, kao i površinske gustine ovog receptora na membrani timocita..." ]
[ "It is widely accepted that the progressive decline in the efficiency of thymopoiesis, starting at puberty, is causally related to increasing concentrations of gonadal hormones. In addition, thymic level of catecholamines, which act, via β- adrenoceptors, as tonic inhibitors of thymopoiesis, increases around puberty. There is a pile of evidence that mature immune cells (T-lymphocytes, macrophages and dendritic cells) as well as different types of epithelial cells, synthesize catecholamines. Furthermore, it has been shown that in various tissues male gonadal hormones affect catecholamine synthesis and β-adrenoceptor expression. These findings imposed the question whether thymocytes and/or thymic stromal cells synthesize catecholamines, and, if so, whether testicular hormones influence the synthesis of catecholamines and/or expression of β2-adrenoceptors, and possibly, consequently, the modulatory action of catecholamines on thymopoiesis. Considering all the aforementioned, the dissertation was aimed to: 1) explore whether thymocytes and/or thymic stromal cells in adult male rats synthesize catecholamines, and to define the types of thymic cells expressing β2-adrenoceptor; 2) examine whether orchidectomy at the age of 30 days, when rat thymus is the most sensitive to testicular hormone deprivation, affects catecholamine levels and β2- adrenoceptor expression in the thymus of adult rats, and, if so, 3) determine whether the modulatory effects of catecholamines on thymopoiesis differ in orchidectomized and non-orchidectomized animals. It has been found that thymocytes, thymic epithelial cells and macrophages in adult rats contain and synthesize catecholamines. In addition, it was shown that subsets of these cells also express the β2-adrenoceptors. Orchidectomy at the age of 30 days decreased the concentration of noradrenaline in the thymus of adult animals by diminishing the density of noradrenergic nerve fibers and catecholamine-containing thymic stromal cells and their noradrenaline content..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175050/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "timus", "timopoeza", "kateholamini", "β2-adrenergički receptor", "hormoni testisa", "sveži timusni emigranti", "regulatorne T-ćelije" ]
[ "thymus", "testicular hormones", "recent thymic emigrants", "regulatory T cells", "thymopoiesis", "catecholamines", "β2-adrenoceptor" ]
[ "Kateholamini kao medijatori delovanja muških polnih hormona na timopoezu :", "Catecholamines as mediators of male gonadal hormone action on thymopoiesis" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Лепосавић, Гордана; Лепосавић, Гордана; Цвијић, Гордана; Јаснић, Небојша; Косец, Душко; Пилиповић, Иван М.; Катехоламини као медијатори деловања мушких полних хормона на тимопоезу :; Катехоламини као медијатори деловања мушких полних хормона на тимопоезу :;
[ "https://nardus.mpn.gov.rs/bitstream/id/2184/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2184/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2052" ]
10.2298/bg20121203pilipovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2063
123456789-2063.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3444/bdef:Content/download
no
Molekularna osnova hronične limfocitne leukemije : korelacija između mutacionog statusa teških lanaca imunoglobulina i ekspresije apoptotskih gena
Molecular basis of chronic lymphocytic leukemia: correlation between the immunoglobulin heavy chain mutational status and the expression of apoptotic genes
[ "Pavlović, Sonja" ]
[ "Pavlović, Sonja", "Savić-Pavićević, Dušanka", "Savić-Pavićević, Dušanka", "Tošić, Nataša" ]
Karan-Đurašević, Teodora
2016-01-05T11:46:18
[ "2016-01-05T11:46:18", "2020-07-03T08:09:00" ]
2012-11-06
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=70", "https://nardus.mpn.gov.rs/handle/123456789/2063", "https://fedorabg.bg.ac.rs/fedora/get/o:3444/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41903375" ]
[ "Hronična limfocitna leukemija (HLL), najčešći tip leukemije u Evropi i Severnoj Americi, se manifestuje kao klonska ekspanzija zrelih CD5+ CD19+ CD23+ sIgM+/- B limfocita i karakteriše se izuzetno heterogenim kliničkim tokom. Leukemični, kao i normalni B limfociti, na svojoj površini eksprimiraju imunoglobulinski antigenski receptor. Struktura varijabilnog regiona njegovog teškog lanca (IGH) je determinisana specifičnim rearanžmanima između IGHV, IGHD i IGHJ gena, koji se odvijaju tokom diferencijacije B ćelija. Nakon susreta sa antigenom, B limfociti ulaze u proces afinitetnog sazrevanja u germinalnim centrima sekundarnih limfnih folikula, tokom koga dolazi do akumulacije somatskih hipermutacija u IGHV-IGHD-IGHJ rearanžmanima. Pokazano je da je mutacioni status rearanžiranih gena za varijabilni region teških lanaca imunoglobulina (IGHV) najpouzdaniji molekularni marker u HLL, koji definiše dva podtipa bolesti: M-HLL i N-HLL. Pacijenti sa malim procentom ili bez IGHV mutacija (N-HLL) obično imaju mnogo agresivniji tok bolesti i lošiju prognozu od pacijenata sa mutiranim IGH rearanžmanima (M-HLL). Razlike u IGHV genskom repertoaru između M-HLL i N-HLL klonova, populacione varijacije u učestalosti određenih IGHV gena u HLL rearanžmanima kao i ekspresija visoko homologih, ˝stereotipnih˝ rearanžmana, ukazuju na ulogu antigenske stimulacije u patogenezi HLL.HLL se smatra tipičnim primerom maligniteta uzrokovanog poremećajima u procesu apoptoze. U HLL su detektovane genetičke promene i aberantna ekspresija brojnih proteina regulatora apoptoze, koji su uključeni kako u spoljašnji tako i u unutrašnji put aktivacije ovog procesa. Smatra se da je smanjeni apoptotski potencijal HLL klonova uzrokovan, između ostalog, i poremećajima u ekspresiji proteina Bcl2 familije. U ovom radu je analiziran IGHV mutacioni status i genski repertoar IGHV-IGHD-IGHJ rearanžmana kod pacijenata obolelih od HLL. Pored toga, analizirana je ekspresija gena Bcl2 familije, kao osnovnih regulatora unutrašnjeg puta aktivacije apoptoze, u cilju utvrđivanja njihove uloge u apoptotskoj rezistenciji HLL B limfocita. qRT-PCR metodom je merena ekspresija Bcl2, Bax i Bcl2L12 gena, i ispitivana asocijacija nivoa njihove ekspresije sa odabranim kliničkim i molekularnim prognostičkim faktorima (IGHV mutacionim statusom, ekspresijom CD38 i lipoprotein lipaze). Bcl2L12 je novi član Bcl2 familije apoptotskih proteina čija pro- ili anti-apoptotska funkcija još uvek nije razjašnjena. Pored analize ekspresije Bcl2L12 gena u HLL, jedan od ciljeva ovog rada je bilo i definisanje promotorskog regiona i mesta starta transkripcije Bcl2L12, što je neophodno za proučavanje mehanizama njegove transkripcione regulacije. Određivanjem IGHV mutacionog statusa je pokazano da 55.3% analiziranih pacijenata pripada M-HLL, a 44.7% N-HLL podtipu, kao i da u N-HLL preovlađuju pacijenti sa progresivnim oblikom bolesti. U analiziranim rearanžmanima su sa najvećom frekvencom bili zastupljeni geni IGHV3 familije (55.7%), a zatim IGHV1 (27.3%), IGHV4 (12.5%), IGHV5 (2.3%), IGHV2 (1.1%) i IGHV6 (1.1%) geni. Pokazano je prisustvo tzv. ˝stereotipnih˝ rearanžmana kod 15.3% pacijenata, predominantno u N-HLL podtipu. Na osnovu određenih frekvenci IGHV, IGHD i IGHJ gena i genskih familija je zaključeno da je IGH genski repertoar leukemičnih klonova kod pacijenata iz Srbije veoma sličan repertoaru detektovanom kod pacijenata iz zemalja mediteranskog područja, sa izuzetkom gena IGHV4 familije koji su kod pacijenata u ovoj studiji zastupljeni sa manjom učestalošću.Analizom ekspresije Bcl2, Bax i Bcl2L12 su detektovani znatno viši nivoi ekspresije sva tri gena kod HLL pacijenata u odnosu na zdrave kontrole, pri čemu je povećanje ekspresije bilo najizraženije u slučaju Bcl2 gena. Povišena ekspresija Bcl2 je pokazala asocijaciju sa nepovoljnim prognostičkim parametrima: progresivnim tipom bolesti, visokim nivoom serumskog β2-mikroglobulina i povišenim nivoom ekspresije gena za lipoprotein lipazu (LPL). Ekspresija Bax je pokazala korelaciju samo sa ekspresijom LPL, dok je ekspresija Bcl2L12 bila relativno homogena među HLL pacijentima i, kao takva, nije ispoljila značajnu asocijaciju sa većinom kliničkih i molekularnih prognostičkih faktora. Ekspresija Bcl2, Bax i Bcl2L12 je bila viša u grupi N-HLL pacijenata u odnosu na M-HLL pacijente, ali ova razlika nije dostigla statističku značajnost.Kloniranjem fragmenata 5' kraja Bcl2L12 gena i funkcionalnom analizom reporterskih konstrukata, detektovan je region koji ispoljava jaku promotorsku aktivnost. Ovaj region se prostire od 338 nukleotida uzvodno, do 148 nizvodno od početka kodirajućeg dela egzona 1, a esejom usporene elektroforetske pokretljivosti (˝EMSA˝) je pokazano da se za njega vezuju Sp1 i GATA-1 transkripcioni faktori. Metodom elongacije reverznog prajmera (˝primer extension˝) je određen položaj starta transkripcije Bcl2L12 gena, 33 nukleotida uzvodno od translacionog start kodona" ]
[ "Chronic lymphocytic leukemia (CLL), the most common type of leukemia in Western countries, manifests as clonal expansion of mature CD5+ CD19+ CD23+ sIgMlow B lymphocytes and it is characterized by an extremely heterogeneous clinical course. Leukemic, as well as normal B lymphocytes, express immunoglobulin antigenic receptor at their surface. The structure of its heavy chain (IGH) variable region is being formed during B-cell differentiation, through rearrangements between IGHV, IGHD and IGHJ genes. After antigen encouner, B lymphocytes undergo the process of affinity maturation in germinal centers of secondary lymphoid follicles, durring which IGHV-IGHD-IGHJ rearrangements accumulate somatic hypermutations. It has been shown that the mutational status of rearranged immunoglobulin heavy variable genes (IGHV) represents the most reliable molecular marker in CLL, which defines two CLL subsets: M-CLL and U-CLL. The patients without or with a small percentage of IGHV mutations (UCLL) usually have more agressive disease and inferior prognosis in comparison to patients expressing mutated IGH rearrangements (M-CLL). Biased IGHV gene repertoire between MCLL and U-CLL clones, population differences in IGHV gene usage, as well as the expression of highly homologous, ˝stereotyped˝ rearrangements, strongly imply the role of antigenic stimulation in pathogenesis of CLL.CLL typifies the malignancy caused by defective apoptosis. Genetic alterations and aberrant expression of numerous proteins involved in extrinsic and intrinsic pathways of apoptosis regulation have been described in CLL. Reduced apoptotic capacity of CLL clones is, in part, caused by disturbances in the expression of Bcl2 family proteins. In this study, we analized IGHV mutational status and gene repertoire of IGHV-IGHD-IGHJ rearrangements in CLL patients. Furthermore, the expression of Bcl2 family genes, the key regulators of intrinsic apoptotic pathway, has been studied, in order to elucidate their role in resistance of CLL B lymphocytes to apoptosis. The expression levels of Bcl2, Bax and Bcl2L12 genes were measured by qRT-PCR, and association of their expression with clinical and molecular prognostic factors (IGHV mutational status, expression of CD38 and lipoprotein lipase) was analized. Bcl2L12 is a novel member of Bcl2 family of apoptotic proteins, whose pro- or anti-apoptotic function has not been elucidated yet. Besides the expression analysis of Bcl2L12 gene in CLL, one of the aims of this dissertation was defining the promoter region and transcription start site of Bcl2L12, which is essential for the study of mechanisms involved in its transcriptional regulation. The analysis of IGHV mutational status showed that 55.3% of patients enrolled in this study belonged to M-CLL, and 44.7% to U-CLL subset, and that in U-CLL predominated patients with the progressive form of the disease. The most frequently expressed genes were those belonging to IGHV3 family (55.7%), followed by IGHV1 (27.3%), IGHV4 (12.5%), IGHV5 (2.3%), IGHV2 (1.1%) i IGHV6 (1.1%) genes. The presence of ˝stereotyped˝ rearrangements was detected in 15.3% of patients, predominantly in U-CLL subset. Based on the determined frequencies of IGHV, IGHD and IGHJ genes and gene families, we concluded that the IGH gene repertoire of leukemic clones of Serbian CLL patients closely resembles the repertoire observed in patients from Mediterranean countries, with the exception of IGHV4 family, which was underrepresented in our cohort. The expression analysis of Bcl2, Bax and Bcl2L12 showed that those three genes were overexpressed in CLL patients compared to healthy controls, and that elevation of expression level was the most prominent in the case of Bcl2 gene. High expression levels of Bcl2 were associated with unfavorable prognostic parameters: progressive form of the disease, elevated β2- microglobulin and high expression of lipoprotein lipase gene (LPL). The expression of Bax was correlated only with the expression of LPL, while the expression of Bcl2L12 turned out to be relatively homogenous among CLL patients and, as such, failed to show association with the majority of clinical and molecular prognostic factors. Expression levels of Bcl2, Bax and Bcl2L12 were higher in U-CLL in comparison to M-CLL group of patients, but this difference did not reach statistical significance.Cloning of fragments corresponding to 5' end of Bcl2L12 gene and functional analysis of reporter constructs, led to identification of a region which exerts high promoter activity. This region extends from 338 nucleotides upstream, to 148 nucleotides downstream relative to the beginning of exon 1 coding sequence, and electromobility shift assay (˝EMSA˝) showed that it binds Sp1 and GATA-1 transcription factors. Transcription start site of Bcl2L12 gene was determined by primer extension assay, which showed that it is located 33 nucleotides upstream of translation start codon." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Hronična limfocitna leukemija", "IGHV mutacioni status", "apoptoza", "Bcl2", "Bax", "Bcl2L12" ]
[ "Chronic lymphocytic leukemia", "IGHV mutational status", "apoptosis", "Bcl2", "Bax", "Bcl2L12" ]
[ "Molekularna osnova hronične limfocitne leukemije : korelacija između mutacionog statusa teških lanaca imunoglobulina i ekspresije apoptotskih gena", "Molecular basis of chronic lymphocytic leukemia: correlation between the immunoglobulin heavy chain mutational status and the expression of apoptotic genes" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Павловић, Соња; Савић-Павићевић, Душанка; Савић-Павићевић, Душанка; Тошић, Наташа; Павловић, Соња; Каран-Ђурашевић, Теодора; Молекуларна основа хроничне лимфоцитне леукемије : корелација између мутационог статуса тешких ланаца имуноглобулина и експресије апоптотских гена; Молекуларна основа хроничне лимфоцитне леукемије : корелација између мутационог статуса тешких ланаца имуноглобулина и експресије апоптотских гена;
[ "http://nardus.mpn.gov.rs/bitstream/id/1992/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1992/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2063" ]
10.2298/bg20121106karandjurasevic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2145
123456789-2145.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7795/bdef:Content/download
no
Ispitivanje elemenata respiratornog lanca gljive Phycomyces blakesleeanus burgeff: veza sa metabolizmom fosfatnih jedinjenja
Investigation of respiratory chain elements in fungus Phycomyces blakesleeanus: connecton with metabolism of phosphate compounds
[ "Živić, Miroslav" ]
[ "Zakrzewska, Joanna", "Cvetić-Antić, Tijana", "Živić, Miroslav", "Zakrzewska, Joanna" ]
Stanić, Marina B.
2016-01-05T11:48:13
[ "2016-01-05T11:48:13", "2020-07-03T08:11:21" ]
2013-09-26
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=1089", "https://nardus.mpn.gov.rs/handle/123456789/2145", "https://fedorabg.bg.ac.rs/fedora/get/o:7795/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024590514" ]
[ "U ovom radu je ispitivano postojanje i aktivnost alternativnih komponenata elektron transportnog lanca kod gljive Phycomyces blakesleeanus, sa akcentom na enzim alternativna oksidaza (AOX), kao i ponašanje respiratornog sistema u uslovima smanjene koncentracije kiseonika. Odgovor respiratornog sistema na ovaj stres je upoređen sa odgovorom druge komponente energetskog metabolizma, polifosfata (PPn), sa namerom da se utvrdi da li su, i na koji način, ova dva metabolička sistema povezana. Ispitivanjima izvedenim pomoću kiseonične elektrode tipa Klark je utvrđeno postojanje aktivnosti alternativnih elemenata respiratornog lanca kod P. blakesleeanus, a za zabeleženu aktivnost su odgovorni AOX, zatim enzim ili enzimski kompleks koji se indukuje u uslovima dugotrajne inhibicije Kompleksa III i nazvan je Kompleks IIIPAR, a vrlo je verovatno da postoji i spoljašnja alternativna NADH:dehidrogenaza (NDE). Utvrđeno je da se AOX sintetiše u citoplazmi nakon čega se enzim unosi u mitohondriju energetski zavisnim transportom. U uslovima smanjene koncentracije kiseonika kapacitet AOX se ne menja, ali učešće enzima u respiraciji značajno raste zbog inhibicije citohrom c oksidaze (COX) u ovim eksperimentalnim uslovima. Ovakav odgovor respiratornog sistema P. blakesleeanus se može pripisati potrebi za brzom odbranom od nastanka reaktivnih kiseoničnih vrsta (ROS) prilikom reoksigenacije koja dovodi do velikog porasta protoka elektrona kroz citohromski respiratorni put. 31P NMR spektroskopija je pokazala da u istim eksperimentalnim uslovima odnos intenziteta centralnog signala PPn i unutarćelijskog neorganskog fosfata (PPc/Pi), koji je dobar pokazatelj energetskog stanja ćelije, opada, ali iznenađujuće, dolazi do rasta nivoa ATP-a. Analiza glavnih komponenti (PCA), je pokazala snažnu negativnu korelaciju između ova dva parametra, ali i negativnu korelaciju između odnosa PPc/Pi i učešća alternativne u ukupnoj respiraciji. Osim toga, dodatak azida, snažnog inhibitora COX, nije dodatno smanjio odnos PPc/Pi u uzorcima micelijuma koji su bili izloženi tretmanu smanjene koncentracije kiseonika. Ovi rezultati ukazuju na povezanost ove dve komponente energetskog metabolizma, odnosno na mogućnost da se hidrolizom PPn nadoknadi manjak ATP-a u ćelijama izazvan inhibicijom citohromskog lanca..." ]
[ "The existence and activity of the alternative components of electron transport chain in fungus Phycomyces blakesleeanus, especially alternative oxidase (AOX), as well as respiratory chain behavior in the conditions of oxygen deprivation, was investigated in this work. Response of respiratory system to these stress conditions was compared to response of another component of energy metabolism, polyphosphates (PPn), with the intention of determining whether, and in what way, are these two metabolic systems connected. Activity of the alternative elements of respiratory chain in P. blakesleeanus was recorded by means of Clark type oxygen electrode, and the elements responsible for this activity were AOX and an enzyme or enzymatic complex induced by long-term inhibition of Complex III which was named Complex IIIPAR. Also, there is a strong possibility of external alternative NADH:dehydrogenase (NDE) existence. It was established that synthesis of AOX takes place in the cytosol, and the enzyme is then imported into the mitochondrion by energy dependent transport. In the conditions of oxygen deprivation AOX capacity is not affected, but its engagement in total respiration increases significantly due to the cytochrome c oxidase (COX) inhibition. This type of respiratory chain response in P. blakesleeanus can be attributed to a need for fast defense from reactive oxygen species (ROS) formed during reoxygenation, which leads to the increase in electron flow through the cytochrome respiratory path. 31P NMR spectroscopy revealed that the intensity ratio of core PPn to intracellular inorganic phosphate signal (PPc/Pi), which is a good indicator of overall cellular energy metabolism, decreases in these experimental conditions, but surprisingly, ATP level raises. Principal component analysis (PCA), has shown strong negative correlation between these two parameters, and also between PPc/Pi ratio and participation of alternative in total respiration. Apart from that, addition of azide, a strong COX inhibitor, did not additionally decrease PPc/Pi ratio in mycelium samples exposed to oxygen deprivation. These results indicate that there is a connection between these two components of energy metabolism, i.e., there is a possibility that the decrease in cellular ATP content caused by cytochrome chain inhibition can be compensated by PPn hydrolysis..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173040/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Phycomyces blakesleeanus", "alternativna oksidaza", "cijanid osetljiva respiracija", "cijanid neosetljiva respiracija", "polifosfati", "ATP" ]
[ "Phycomyces blakesleeanus", "alternative oxidase", "cyanide sensitive respiration", "cyanide insensitive respiration", "polyphosphates", "ATP" ]
[ "Ispitivanje elemenata respiratornog lanca gljive Phycomyces blakesleeanus burgeff: veza sa metabolizmom fosfatnih jedinjenja", "Investigation of respiratory chain elements in fungus Phycomyces blakesleeanus: connecton with metabolism of phosphate compounds" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Живић, Мирослав; Закрзеwска, Јоанна; Цветић-Aнтић, Тијана; Живић, Мирослав; Закрзеwска, Јоанна; Станић, Марина Б.;
[ "https://nardus.mpn.gov.rs/bitstream/id/2501/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2501/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2145" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2095
123456789-2095.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:6513/bdef:Content/download
no
Proučavanje razvoja fitoekologije i fitogeografije u jugoslovenskim zemljama u periodu 1759-1988 : bibliometrijska studija
Research of the development of ecology and geography of plants in southslavonic lands between 1759. and 1988. : a bibliometric study
[ "Janković, Milorad M." ]
[ "Stevanović, Branka", "Kojić, Momčilo" ]
Filipi Matutinović, Stela
2016-01-05T11:47:03
[ "2016-01-05T11:47:03", "2020-07-03T08:09:33" ]
1993-06-02
[ "https://nardus.mpn.gov.rs/handle/123456789/2095", "http://eteze.bg.ac.rs/application/showtheses?thesesId=519", "https://fedorabg.bg.ac.rs/fedora/get/o:6513/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=8558607" ]
[ "Ova disertacija predstavlja pokušaj analize informacionih masiva, kao odraza strukture nauke, primenom naukometrijskih, posebno bibliometrijskih, metoda. Prva istraživanja iz fitoekologije i fitogeografije vršili su uglavnom stranci. U drugoj polovini 19. veka osnivaju se prve domaće naučnoistraživačke institucije. Između dva svetska rata dolazi do njihovog jačanja, a posle Drugog svetskog rata do naglog širenja mreže institucija i udesetostručenja broja istraživača. Sedamdesetih godina 20. veka rast se usporava, a krajem osamdesetih dolazi do opadanja. Osnovu za bibliometrijsku studiju činila je bibliografija o ekologiji, rasprostranjenju i zaštiti flore i vegetacije u jugoslovenskim zemljama 1759-1988, koja je urađena kao prilog uz ovu disertaciju. Ona obuhvata 391 monografsku publikaciju, 226 doktorskih disertacjia i 6.012 članaka iz časopisa i zbornika. Analizirana je vremenska raspodela bibliografskih jedinica, tematska i jezička struktura bibliografije, raspodela autora i časopisa po produktivnosti i uključenost časopisa u svetski sistem protoka informacija. Utvrđeno je da je: moguće izdvojiti 3 osnovna perioda razvoja; razvoj posmatranih disciplina pratio je razvoj u svetu; 17% radova je objavljeno na stranim jezicima, a 53% članaka ima sažetke na svetskim jezicima; preko 50%članaka objavljenih 1980-1988. nalazili su se u časopisima koji su uključeni u svetske baze podataka za odgovarajuće oblasti. Bibliografija sadrži radove 1.859 autora, čija se raspodela po produktivnosti ponaša po bibliometrijskim zakonima, a parametar rasopodele, koji je i osnovni pokazatelj strukture posmatranog sistema, iznosi 0,67. Bibliografijom je obuhvaćeno 5.863 članaka iz 556 časopisa, čija se raspodela po časopisima ponašala po bibliometrijskim zakonima, a parametar raspodele iznosi 0,49. Vrednosti parametra raspodele manje od 1 ukazuju na negausovsku Cipfovu raspodelu sa jako izraženom stratifikacijom i povećanim udelom visokoproduktivnih nosilaca posmatranih pojava, što je karakteristično za razvoj nauke u nepovoljnim uslovima. Činjenica da je od 150 godina, koliko traje redovno objavljivanje naučnih rezultata iz posmatranih oblasti, 40 godina bilo sa eksponencijalnim rastom, 40 godina sa trendom opadanja, a 70 godina je proteklo u povratku na nivo pre početka negativnog trenda, najbolje ukazuje na suštinu problema razvoja nauke na ovim prostorima." ]
[ "This dissertation is an attempt to present the massifs of information, which reflect the structure of science, bу using scientometric and specially bibliometric methods. First researches on plant ecology and geography were done mostly by foreigners. the first southslavonic scientific institutions were founded in the second half of 19th the century. Between the world wars the institutions grew, after the second world war the network of scientific institutions spread fast, and the number of researchers was ten times multiplied. In the seventies of the 20th century the growth was slowing down, and in the eighties the falling started. Basis for this bibliometric study was the Bibliography of ecology, dispersion and protection of flora and vegetation in southslavonic lands 1759-1988, which was compiled as an appendix to this dissertation. It includes 391 monographs, 226 doctoral dissertations and 6.012 articles from journals and collections. Temporal distribution of publications, thematic and linguistic structure of the bibliography, dispersion of authors and journals according to productivity and presence of journals in world system of scientific information are analyzed. It is established that: it is possible to divide the development in three basic periods; development of those disciplines followed the development in the world; 17% of papers were published in foreign languages and 53% of articles had summaries in foreign languages; more then 50% of articles published between 1980. and 1988. were in journals included in world databases for adequate disciplines. Bibliography includes papers of 1.859 authors, whose productivity is dispersed in accordance with bibliometric laws. Numeric value of bibliometric parameter, which is the indicator for the structure of examined system of science, was 0,67. Bibliography included 5.863 articles from 556 journals, whose dispersion was in accordance with bibliometric laws, with parameter of dispersion 0,49. Parameter values less then 1 indicate that the dispersion is nongaussian, Zipfs, with highly expressed stratification and with greater part of highly productive sources. That is the characteristic for the development of science in unpleasant environment. The fact that in period of 150 years of continual publishing of scientific results in plant ecology and geography 40 years had exponential growth of the number of publications, 40 years had falling, and 70 years passed in reaching the level before negative trend started, is the best indicator of the essential problems for the development of science in this part of the world." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "fitoekologija", "fitogeografija", "istorija", "bibliometrija", "Jugoslavija" ]
[ "ecology", "geography", "plants", "history", "bibliometry", "Jugoslavija" ]
[ "Proučavanje razvoja fitoekologije i fitogeografije u jugoslovenskim zemljama u periodu 1759-1988 : bibliometrijska studija", "Research of the development of ecology and geography of plants in southslavonic lands between 1759. and 1988. : a bibliometric study" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Јанковић, Милорад М.; Стевановић, Бранка; Којић, Момчило; Филипи Матутиновић, Стела; Проучавање развоја фитоекологије и фитогеографије у југословенским земљама у периоду 1759-1988 : библиометријска студија; Проучавање развоја фитоекологије и фитогеографије у југословенским земљама у периоду 1759-1988 : библиометријска студија;
[ "https://nardus.mpn.gov.rs/bitstream/id/2113/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2113/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2095" ]
10.2298/bg19930602filipimatutinovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2131
123456789-2131.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7123/bdef:Content/download
no
Uticaj abiotičkih stresora na stabilnost razvića i morfološku varijabilnost Iris pumila u prirodnim i eksperimentalnim populacijama
The influence of abiotic stressors on the development stability and morphological variability of Iris pumila in natural and experimental populations
[ "Tucić, Branka" ]
[ "Giba, Zlatko", "Lazarević, Jelica" ]
Miljković, Danijela
2016-01-05T11:47:58
[ "2016-01-05T11:47:58", "2020-07-03T08:10:08" ]
2009-09-18
[ "https://nardus.mpn.gov.rs/handle/123456789/2131", "http://eteze.bg.ac.rs/application/showtheses?thesesId=797", "https://fedorabg.bg.ac.rs/fedora/get/o:7123/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=35771919" ]
[ "Uticaj različitog inteziteta svetlosti, kao jednog od abiotičkih faktora životne sredine, na nivo stabilnosti razvića i morfološku varijabilnost osobina cveta I. pumila ispitivan je na jedinkama populacija koje naseljavaju dva prirodna staništa različitiog inteziteta i kvaliteta raspoložive svetlosti (otvoreno i zasenčeno stanište), kao i na jedinkama populacija poreklom sa otvorenog i zasenčenog staništa, koje su bile izložene tretmanima visokog i niskog svetlosnog inteziteta svetlosti u eksperimentalnim uslovima. Osnovna hipoteza je bila da pod uticajem suboptimalnog intenziteta svetlosti dolazi do smanjenja stabilnosti razvića cvetnih organa što se može utvrditi na osnovu stepena asimetrije radijalno i bilateralno simetričnih cvetnih organa. Stepen fluktuirajuće asimetrije i radijalne asimetrije kao mere nestabilnosti razvića jedinke ili populacije, zavisi od intenziteta delovanja biotičkih i abiotičkih stresora, a pošto je stepen asimetrije negativno korelisan sa stabilnošću razvića, a pozitivno sa razvojnim šumom, na osnovu toga treba očekivati veće vrednosti indeksa asimetrije, tj. veću nestabilnost razvića u stresnijim sredinskim uslovima. Veličina i obrazac stabilnosti razvića osobina cveta I.pumila su se razlikovali u zavisnosti od analizirane osobine, kao i od evolucione istorije istraživanih populacija. Prosečne vrednosti indeksa radijalne asimetrije su bile više u zasenčenom nego u otvorenom staništu, ukazujući da je zasenčeno stanište verovatno stresnija sredina. Populacije poreklom sa otvorenog i zasenčenog staništa su se razlikovale u srednjoj vrednosti indeksa radijalne asimetrije osobina cveta u okviru svakog od svetlosnih tretmana. Fluktuirajuća asimetrija, kao mera bilateralne simetrije osobina cveta I.pumila, imala je veće vrednosti u prirodnim staništima sa visokim svetlosnim intezitetom u poređenju sa niskim, na osnovu čega bi se moglo zaključiti da je otvoreno stanište stresnije za ovaj tip osobina cveta. Aktuelni svetlosni uslovi u alternativnim svetlosnim staništima su indukovali statistički značajne razlike u strukturi fenotipskih i genetičkih korelacionih matrica morfoloških osobina cveta I.pumila. Jaka korelativna veza između veličine fola i standarda na unutar-individualnom nivou u sredinama različitog svetlosnog inteziteta može da ukazuje na bliske veze procesa razvića pomenutih osobina." ]
[ "The main goal of thesis was to examine the influence of an abiotic environmental factor, such as light intensity, on the developmental stability level and morphological variability of I. pumila floral traits. The individuals, from natural habitat populations which located different light condition habitats (exposed and shaded one), as well as the individuals of populations derived from natural habitat but raised in experimental light conditions of low and high intensity, were used. The basic hypothesis was whether suboptimal light intensity decreased developmental stability of floral traits. Since the level of fluctuating and radial asymmetry is in negative correlation with developmental stability, but is positively correlated with developmental noise, the larger values of asymmetry index are to be expected in more stressful conditions. The developmental stability size and pattern of I. pumila floral traits differed depending on analyzed trait, as well as on the evolutionary history of analyzed populations. The radial asymmetry index showed higher average values in shaded habitat comparing to the exposed one, meaning that the exposed location is more stressful environment for development of the identical replicas of different floral organs. Populations derived from open and shaded habitat differed in an average value of radial asymmetry index of floral traits inside each light intensity treatments, but didn’t differ in fluctuating asymmetry level.Statistically significant interaction between treatment and population, that we got for the radial asymmetry of the standard length and all the indices of fluctuating asymmetry, indicate that the effect of the light intensity on the sensitivity of developmental stability of Iris pumila floral traits depends on the population origin: whether they originated from an open or a shaded habitat. The actual light regimes in different habitats create statistically significant differences in phenotypic and genetic correlation matrices’ structures of morphological Iris pumila floral traits. The correlation matrices of morphological Iris pumila floral traits coincided within and between populations derived from alternative light intensity treatments." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Iris pumila", "radijalna asimetrija cveta", "fluktuirajuća asimetrija cveta", "stabilnost razvića", "sredinski stres", "korelacioni odnosi osobina cveta" ]
[ "Iris pumila", "radial asymmetry", "fluctuating asymmetry", "developmental stability", "environmental stress", "correlation relationship between floral traits" ]
[ "Uticaj abiotičkih stresora na stabilnost razvića i morfološku varijabilnost Iris pumila u prirodnim i eksperimentalnim populacijama", "The influence of abiotic stressors on the development stability and morphological variability of Iris pumila in natural and experimental populations" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Туцић, Бранка; Гиба, Златко; Лазаревић, Јелица; Миљковић, Данијела; Утицај абиотичких стресора на стабилност развића и морфолошку варијабилност Ирис пумила у природним и експерименталним популацијама; Утицај абиотичких стресора на стабилност развића и морфолошку варијабилност Ирис пумила у природним и експерименталним популацијама;
[ "http://nardus.mpn.gov.rs/bitstream/id/2246/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2246/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2131" ]
10.2298/bg20090918miljkovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2163
123456789-2163.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7844/bdef:Content/download
no
Molekulski mehanizmi metaboličke regulacije u hibernaciji i tokom aklimacije na hladnoću kod tekunice (Spermophilus citellus)
Molecular mechanisms of metabolic regulation in hibernation and during cold-acclimation in European ground squirrel (Spermophilus citellus)
[ "Korać, Bato", "Buzadžić, Biljana" ]
[ "Korać, Aleksandra", "Otašević, Vesna", "Storey, Kenneth B." ]
Vučetić, Milica M.
2016-01-05T11:48:30
[ "2016-01-05T11:48:30", "2020-07-03T08:11:22" ]
2014-02-28
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=1104", "https://nardus.mpn.gov.rs/handle/123456789/2163", "https://fedorabg.bg.ac.rs/fedora/get/o:7844/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024705714" ]
[ "Fenomen hibernacije predstavlja fascinantan primer plastičnosti kod sisara. Hibernirajući sisari podliježu složenom nizu biohemijskih, fizioloških i bihevioralnih promjena u odgovoru na senzonske energetski-zahtijevne periode kuplovane sa redukovanom dopstupnošću hrane. Cilj disertacije je da se ispitaju promjene ćelijskog metabolizma u tkivima i organima tekunica, ključnim za održanje ukupne energetske homeostaze - mrko i bijelo masno tkivo (engl. brown adipose tissue, BAT i white adipose tissue, WAT), mišići i jetra, tokom perioda aklimacije na nisku temperaturu, kao i u fazi hibernacije. Efekat aklimacije/hibernacije na metaboličko remodeliranje u tkivima i organima tekunica praćen je određivanjem: mitohondrijalnog kapaciteta (genska i/ili proteinska ekspresije komponenti respiratornog lanca i ATP sintaze); termogenog kapaciteta (ekspresija dekuplujućeg proteina 1); ekspresionih profila enzima ključnih metaboličkih puteva: glikolize, β-oksidacije, Krebsovog ciklusa, metabolizama triacilglicerola i glikogena. Ispitivani su i transkripcioni faktori uključeni u metaboličku regulaciju, kao i enzimi antioksidativne odbrane. Takođe, ispitivane su promjene u BAT i depoima WAT na strukturnom i ultrastrukturnom nivou. Mužjaci evropske tekunice Spermophilus citellus su početkom septembra podijeljeni u dvije grupe: kontrolnu, koja je boravila na sobnoj temeraturi (22 ± 1 ºC) i grupu aklimiranu na nisku temperaturu (4 ± 1 ºC). Aktivne, eutermične tekunice, koje nisu ušle u duboku hibernaciju tokom aklimacije, žrtvovane su nakon 1, 3, 7, 12, odnosno 21 dan. Tekunice koje su ušle u hibernaciju žrtvovane su nakon 2-5 dana trajanja hibernacije (kontinuirana rektalna temperatura 4 ºC). BAT, subkutano, retroperitonealno i epididimalno WAT (sWAT, rWAT i eWAT), skeletni mišić (musculus quadriceps) i jetra su uzorkovani odmah po žrtvovanju. Kako bi se ispitali mehanizmi metaboličke regulacije u BAT, specifični za hibernatore, paralelno je rađena komparativna studija aklimacije pacova na nisku temperaturu..." ]
[ "The phenomenon of hibernation is a fascinating example of plasticity in mammals. Hibernating mammals are subjected to a complex series of biochemical, physiological and behavioral changes in response to seasonal energy-demanding periods coupled with reduced food availability. The aim of the thesis was to investigate metabolic changes in the key tissues and organs of the ground squirrel, responsible for maintaining overall energy homeostasis - brown and white adipose tissue (BAT and WAT), skeletal muscle and liver, during the acclimation to low temperature, as well as in the hibernation. Effects of acclimation/hibernation on metabolic remodeling in the tissues and organs of the ground squirrel were determined by: mitochondrial capacity (gene and/or protein expression of the components of the respiratory chain and ATP synthase); thermogenic capacity (uncoupling protein 1 content), the expression profile of the key metabolic enzymes involved in: glycolysis, β-oxidation, Krebs cycle, glycogen and triglycerides metabolism. Furthermore, transcription factors involved in the metabolic regulation, as well as antioxidant enzymes, were examined. In parallel, we examined the changes in BAT and WAT depots on the structural and ultrastructural level. Males of the European ground squirrel Spermophilus citellus were divided into two groups in early September: the control group, kept at room temperature (22 ± 1 º C) and a group acclimated to low temperature (4 ± 1 ºC). Active, euthermic ground squirrels, which did not enter into deep hibernation during acclimation, were sacrificed after 1, 3, 7, 12, or 21 days. Ground squirrels that entered hibernation were sacrificed after 2-5 days of hibernation (continuous rectal temperature of 4 ºC). BAT, subcutaneous, retroperitoneal and epididimal WAT (sWAT, rWAT and eWAT), skeletal muscle (musculus quadriceps) and liver were sampled. Parallel, in order to examine the mechanisms of metabolic regulation in the BAT specific for hibernation, comparative study with rats acclimated to low temperatures, was made. Results show that, when hibernating animals are exposed to low temperature, the cellular metabolism in all examined tissues/organs is initially subordinated to maintaining euthermia, i.e. thermogenic process. In the early period of the cold-exposure, shivering and nonshivering thermogenesis is induced in the muscle and BAT, respectively..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173055/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "tekunica", "hibernacija", "energetski metabolizam", "aklimacija na hladnoću", "transkripciona regulacija", "antioksidativna odbrana" ]
[ "ground squirrel", "hibernation", "energy metabolism", "cold acclimation", "transcription regulation", "antioxidant defense" ]
[ "Molekulski mehanizmi metaboličke regulacije u hibernaciji i tokom aklimacije na hladnoću kod tekunice (Spermophilus citellus)", "Molecular mechanisms of metabolic regulation in hibernation and during cold-acclimation in European ground squirrel (Spermophilus citellus)" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Кораћ, Бато; Бузаджић, Биљана; Кораћ, Aлександра; Стореy, Кеннетх Б.; Оташевић, Весна; Вучетић, Милица М.; Молекулски механизми метаболичке регулације у хибернацији и током аклимације на хладноћу код текунице (Спермопхилус цителлус); Молекулски механизми метаболичке регулације у хибернацији и током аклимације на хладноћу код текунице (Спермопхилус цителлус);
[ "https://nardus.mpn.gov.rs/bitstream/id/2505/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2505/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2163" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2072
123456789-2072.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3508/bdef:Content/download
no
Varijabilnost gena uključenih u inflamatorne, imunomodulatorne i apoptotske procese kao faktor rizika za nastanak bazocelularnog karcinoma glave i vrata
Variability of genes involved in inflammatory, immunomodulatory and apoptotic process as a risk factor for head and neck basal cell carcinomas
[ "Stamenković-Radak, Marina" ]
[ "Milašin, Jelena", "Novaković, Ivana" ]
Kostić, Marija M.
2016-01-05T11:46:37
[ "2016-01-05T11:46:37", "2020-07-03T08:09:10" ]
2012-04-12
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=95", "https://nardus.mpn.gov.rs/handle/123456789/2072", "https://fedorabg.bg.ac.rs/fedora/get/o:3508/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024539314" ]
[ "Bazocelularni karcinom (BCK), poznat kao i bazaliom, je najčešćih oblik kancera u populaciji Kavkayijanaca..." ]
[ "Introduction: Basal-cell carcinoma (BCC), also known as basalioma, is the most frequent tzpe of cancer among the Caucasus..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175075/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "bazocelularni karcinom", "polimorfizmi nukleotidne sekvance", "TNF-alpha", "TNF receptori", "MMP-9", "survivin", "TP53" ]
[ "basal cell carcinoma", "single nucleotide polymorphizms", "TNF-alpha", "TNF receptors", "MMP-9", "survivin", "TP53" ]
[ "Varijabilnost gena uključenih u inflamatorne, imunomodulatorne i apoptotske procese kao faktor rizika za nastanak bazocelularnog karcinoma glave i vrata", "Variability of genes involved in inflammatory, immunomodulatory and apoptotic process as a risk factor for head and neck basal cell carcinomas" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Стаменковић-Радак, Марина; Новаковић, Ивана; Милашин, Јелена; Костић, Марија М.; Варијабилност гена укључених у инфламаторне, имуномодулаторне и апоптотске процесе као фактор ризика за настанак базоцелуларног карцинома главе и врата; Варијабилност гена укључених у инфламаторне, имуномодулаторне и апоптотске процесе као фактор ризика за настанак базоцелуларног карцинома главе и врата;
[ "http://nardus.mpn.gov.rs/bitstream/id/2027/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2027/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2072" ]
10.2298/bg20120412kostic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2120
123456789-2120.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7139/bdef:Content/download
no
Dinamika zajednica zooplanktona u Bokokotorskom zalivu
Zooplankton community dynamics in the Bay of Boka Kotorska
[ "Krpo-Ćetković, Jasmina" ]
[ "Lučić, Davor", "Živić, Ivana", "Pešić, Vladimir" ]
Pestorić, Branka Š.
2016-01-05T11:47:45
[ "2016-01-05T11:47:45", "2020-07-03T08:09:56" ]
2013-06-03
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=807", "https://nardus.mpn.gov.rs/handle/123456789/2120", "https://fedorabg.bg.ac.rs/fedora/get/o:7139/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44646415" ]
[ "Istraživanje zooplanktona obuhvatilo je analizu kvalitativnog i kvantitativnog sastava kao i određivanje vremenske i prostorne distribucije zooplanktona, pojedinih grupa i njihovih vrsta na području Bokokotorskog zaliva. Istraživanje je obavljeno na tri lokaliteta u Kotorskom, dva u Tivatskom i jednom lokalitetu u Hercegnovskom zalivu. Uzorci su sakupljeni planktonskom mrežom promjera okaca 125μm, jednim potezom od dna do površine. Uzorkovanje je vršeno sedmično, 15-dnevno i mjesečno, sa ciljem da se objasni velika brzina promjene brojnosti i distribucije zooplanktona u plitkim oblastima. Tokom 16-mjesečnog istraživanja mezozooplanktona Bokokotorskog zaliva određen je 81 takson iz ukupno 7 filuma. U Kotorskom zalivu je nađeno 69 taksona, u Tivatskom 70, dok su u Hercegnovskom zalivu zabilježena 72 taksona. Godišnja dinamika ukupne gustine na sva tri područja (Kotorski, Tivatski i Hercegnovski zaliv) pokazala je povećanje u toplijem dijelu godine. Uzrok visokih vrijednosti u ljetnjim mjesecima na području Kotorskog zaliva bila je pojava protozoe Noctiluca scintillans sa velikim gustinama populacije, kao i razvoj kladocera. Razvoj kladocera bio je i razlog ljetnjeg maksimuma u Tivatskom i Hercegnovskom zalivu, dok se zimski maksimum u Hercegnovskom zalivu javio kao posljedica velike gustine populacija kopepoda. Dominantna grupa zooplanktona bile su kopepode. Srednja procentualna zastupljenost iznosila je 67% u Kotorskom, 73% u Tivatskom i 81% u Hercegnovskom zalivu. Takosoni Oncaeidae i Oithona nana su dominirali u sastavu kopepoda na svim lokalitetima u istraživanom periodu. Maksimalnim gustinama kopepoda prethodile su visoke vrijednosti gustine fitoplanktona. Pojava velike gustine populacije ktenofore Bolinopsis vitrea u Kotorskom zalivu, predstavlja prvi takav nalaz u južnom Jadranu, kao i prvu masovnu pojavu ove vrste u Mediteranu. Visoka negativna korelacija između B. vitrea i kopepoda potvrđuje činjenicu da su ktenofore vrlo bitni predatori čija aktivnost za posljedicu može imati značajan uticaj na zooplanktonske zajednice. VII Rezultati ovog istraživanja su pokazali da je u obalnim područjima korišćenje planktonske mreže promjera okaca 125 μm neophodno za dobijanje preciznijih vrijednosti ukupnog zooplanktona, jer najveći udio predstavljaju rani razvojni stadijumi malih kalanoida i ciklopoida koji prolaze kroz mreže grubljeg tkanja. Velike varijacije vrijednosti u svim sezonama, posebno kopepoda, sugerišu da je za bolje razumijevanje procesa u ovako produktivnim sistemima potrebno uzimati uzorke češće od jednom mjesečno. Istraživanja ukazuju i na to da brze promjene hidrografskih i produkcijskih parametara u zatvorenom i eutrofnom Bokokotorskom zalivu značajno utiču na gustine populacija zooplanktona." ]
[ "The study on zooplankton included the analysis of qualitative and quantitative composition, as well as the analysis of spatial and temporal distribution of certain zooplankton groups and species in the Bay of Boka Kotorska. The research was realised at 3 locations within the Bay of Kotor, 2 locations within the Bay of Tivat, and 1 location within the Bay of Herceg Novi. Samples were collected using a plankton net with 125μm mesh size, with one vertical haul from the sea bottom to the water surface. Sampling was done either weekly, every 15 days, or once a month, with the aim to explain the high turnover rate of the abundance and distribution of zooplankton in shallow areas. During the 16-month research on zooplankton in the Bay of Boka Kotorska, we determined 81 taxa from 7 phyla. In the Bay of Kotor, we found 69 taxa, in the Bay of Tivat 70 taxa, and in the Bay of Herceg Novi 72 taxa. The annual density dynamics in all the three areas (within the three sub-bays, of Kotor, Tivat, and Herceg Novi) showed an increase in the warmer period of the year. The cause of high density values during the summer months in the Bay of Kotor was the appearance of the protozoan Noctiluca scintillans with a high population density, as well as the development of cladocerans. The development of cladocerans was the reason for the summer maximum in the Bay of Tivat and Herceg Novi as well, while the winter maximum in the Bay of Herceg Novi was the consequence of the high population density of copepods. The dominant group of zooplankton were copepods, with average percentages of 67% in the Bay of Kotor, 73% in the Bay of Tivat, and 81% in the Bay of Herceg Novi. Oncaeidae and Oithona nana were the dominant copepod taxa at all locations during the research. Maximum density of copepods was preceded by high densities of phytoplankton. The occurrence of a high population density of the ctenophore Bolinopsis vitrea in the Bay of Kotor is the first such occurrence recorded in the South Adriatic Sea, as well as the first mass occurrence of this species in the Mediterranean Sea. A high negative correlation between B. vitrea and copepods confirms the fact that ctenophores IX are very important predators, the activity of which might have a significant impact on the zooplankton communities. The results of this research indicate that it is necessary to use a plankton net with 125μm mesh size in order to obtain more precise values of the total zooplankton, because early stadiums of small calanoids and cyclopoids, which contribute the most to the overall density of zooplankton, pass through the plankton nets with higher mesh sizes. Large variability of densities, particularly of copepods, during all seasons, suggest that, for a better understanding of the processes in these productive systems, it is necessary to take samples more often than once a month. The research also indicates that rapid changes of hydrographic and productivity parameters in a closed and eutrophicated bay, which is the case with the Bay of Boka Kotorska, have a significant influence on the population densities of zooplankton." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "brojnost", "vremenska distribucija", "prostorna distribucija", "južni Jadran" ]
[ "abundance", "temporal variability", "spatial variability", "southern Adriatic" ]
[ "Dinamika zajednica zooplanktona u Bokokotorskom zalivu", "Zooplankton community dynamics in the Bay of Boka Kotorska" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Крпо-Ћетковић, Јасмина; Лучић, Давор; Живић, Ивана; Пешић, Владимир; Песторић, Бранка Ш.; Динамика заједница зоопланктона у Бококоторском заливу; Динамика заједница зоопланктона у Бококоторском заливу;
[ "https://nardus.mpn.gov.rs/bitstream/id/2207/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2207/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2120" ]
10.2298/bg20130603pestoric
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2078
123456789-2078.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:5396/bdef:Content/download
no
Molekularni mehanizmi patogeneze mijeloproliferativnih neoplazija : poremećaj ekspresije gena uključenih u proliferaciju i apoptozu
Molecular mechanisms of pathogenesis of myeloproliferative neoplasms: deregulation of genes involved in cell proliferation and apoptosis
[ "Pavlović, Sonja" ]
[ "Pavlović, Sonja", "Savić-Pavićević, Dušanka", "Savić-Pavićević, Dušanka", "Nikčević, Gordana" ]
Spasovski, Vesna M.
2016-01-05T11:46:39
[ "2016-01-05T11:46:39", "2020-07-03T08:09:18" ]
2012-12-27
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=162", "https://nardus.mpn.gov.rs/handle/123456789/2078", "https://fedorabg.bg.ac.rs/fedora/get/o:5396/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024559538" ]
[ "Mijeloproliferativne neoplazije (MPN) su hronični hematološki maligniteti koji se odlikuju autonomnom proliferacijom opredeljenih progenitora hematopoeze i aberantnom aktivacijom tirozin kinaznih signalnih puteva u kombinaciji sa snažnim odgovorom na citokine i faktore rasta. Tri bolesti predstavljaju MPN u užem smislu: policitemija vera (PV), esencijalna trombocitemija (ET) i mijelofibroza (MF). Jedna od komplikacija ovih oboljenja je njihova kasna evolucija u akutnu mijeloidnu leukemiju (AML). Važno obeležje ovih bolesti ja prisustvo „missense“ JAK2-V617F mutacije u sve tri bolesti, a procenat zastupljenosti mutacije po bolestima je različit. TakoĎe pokazano je da kod ovih pacijenata postoji tzv. efekat “doze gena”, odnosno da različit nivo V617F alela utiče kliničku sliku bolesti. JAK2-V617F mutacija dogaĎa se u 80% slučajeva na specifičnom haplotipu koji je nazvan 46/1 haplotip. Na koji način ovaj niz SNP-ova, koji se nalaze u JAK2 genu, predisponira nastajanje mutacije kao i njen uticaj na fenotip MPN, još nije utvrĎeno. Jedan od mogućih mehanizama je uticaj ovog haplotipa na transkripciju. Posebnu pažnju u okviru 46/1 haplotipa je privukao SNP rs12343867, koji u potpunosti asocira sa MPN. Proces apoptoze je deregulisan u hematološkim malignitetima, što dovodi do rezistencije malignih ćelija na signale smrti i obezbeĎuje im duži život u odnosu na normalne ćelije. Proces apoptoze nije detaljno izučen kod MPN, mada se zna da je direktno pogoĎen JAK2-V617F mutacijom. Naime, glavni signalni put preko STAT5 (Signal Transducers and Activators of Transcription) proteina direktno aktivira anti- apoptotski BCL2-xL protein, čime se smanjuje apoptoza. Deregulacija ostalih apoptotskih puteva u MPN nije u potpunosti rasvetljena" ]
[ "Myeloproliferative neoplasms (MPN) are chronic hematological malignancies that are characterized by autonomous proliferation of committed hematopoietic progenitors and aberrant activation of tyrosine kinase signaling pathways, in combination with a strong response to cytokines and growth factors. Three major entities constitute MPN: polycythaemia vera (PV), essential thrombocythemia (ET) and primary myelofibrosis (PMF). One of the complications of these diseases is their late evolution into acute myeloid leukemia. Important feature of these diseases is the presence of missense mutation JAK2- V617F and its variable representation among MPN entities. It is also shown that there is socalled effect of \"gene dosage\" in these patients, meaning that a different level of V617F alleles influences the clinical picture of the disorders. JAK2-V617F mutation occurs in 80% of cases on a specific haplotype, called 46/1 haplotype. Exact mechanism of action of this set of SNPs, that are located within the JAK2 gene, has not been determined yet. One of the possible mechanisms could be that it effects transcription. Among eight SNPs, included in this haplotype, SNP rs12343867 has drawn special attention because of its strong association with the MPN. The process of apoptosis is deregulated in hematological malignancies, leading to resistance of cancer cells to death signals, thus providing them a longer life span compared to normal cells. The process of apoptosis has not been extensively studied in MPN, although it is known that it is directly affected by the JAK2-V617F mutation. Specifically, the main signaling pathway through STAT5 protein directly activates anti-apoptotic BCL2- xL protein, thereby reducing apoptosis. Deregulation of other apoptotic pathways in MPN is not fully understood" ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Mijeloproliferativne neoplazije", "JAK2-V617F mutacija", "46/1 haplotip", "transkripciona regulacija", "ekspresija JAK2 gena", "apoptoza" ]
[ "Myeloproliferative neoplasms", "JAK2-V617F-mutation", "46/1 haplotype", "transcriptional regulation", "expression of the JAK2 gene", "apoptosis" ]
[ "Molekularni mehanizmi patogeneze mijeloproliferativnih neoplazija : poremećaj ekspresije gena uključenih u proliferaciju i apoptozu", "Molecular mechanisms of pathogenesis of myeloproliferative neoplasms: deregulation of genes involved in cell proliferation and apoptosis" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Павловић, Соња; Никчевић, Гордана; Савић-Павићевић, Душанка; Павловић, Соња; Савић-Павићевић, Душанка; Спасовски, Весна М.; Молекуларни механизми патогенезе мијелопролиферативних неоплазија : поремећај експресије гена укључених у пролиферацију и апоптозу; Молекуларни механизми патогенезе мијелопролиферативних неоплазија : поремећај експресије гена укључених у пролиферацију и апоптозу;
[ "http://nardus.mpn.gov.rs/bitstream/id/2058/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2058/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2078" ]
10.2298/bg20121227spasovski
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2109
123456789-2109.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7133/bdef:Content/download
no
Ekološke karakteristike i morfološko-genetička diferencijacija populacija crnke (Umbra krameri Walbaum, 1792) sa područja Bačke, Mačve i Semberije
Ecological characteristics and morphological-genetic differentiation in populations of European mudminnoow (Umbra krameri Walbaum, 1792) from Bačka, Mačva and Semberija
[ "Krpo-Ćetković, Jasmina" ]
[ "Marić, Saša", "Jojić, Vida", "Hegediš, Aleksandar", "Lenhardt, Mirjana" ]
Sekulić, Nenad K.
2016-01-05T11:47:31
[ "2016-01-05T11:47:31", "2020-07-03T08:09:46" ]
2013-12-21
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=803", "https://nardus.mpn.gov.rs/handle/123456789/2109", "https://fedorabg.bg.ac.rs/fedora/get/o:7133/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44653327" ]
[ "Crnka (Umbra krameri Walbaum, 1792) je jedina autohtona i reliktna vrsta iz roda Umbra prisutna u Evropi, endemična za basene Dunava i Dnjestra. U okviru današnjeg diskontinuiranog areala, usled isušivanja i zagađivanja staništa, populacije crnke značajno su smanjene poslednjih decenija XX veka. Iz navedenih razloga crnka se nalazi na IUCN Crvenoj listi ugroženih vrsta i ima status ranjive vrste (VU). Na nacionalnom nivou ima status kritično ugrožene vrste (CR) i nalazi se u neposrednoj opasnosti od iščezavanja. U ovoj disertaciji su uz distribuciju vrste u Srbiji i Bosni i Hercegovini, sa novozabeleženom populacijom u Srbiji (lokalitet Lugomir), prikazani i rezultati analize ekoloških karakteristika i morfološko-genetičke diferencijacije istraživanih populacija, a dat je i status ugroženosti vrste na nacionalnom nivou sa ugrožavajućim faktorima i merama zaštite i očuvanja. Za potrebe rada uzorkovano je ukupno 76 jedinki iz tri populacije, dve iz Srbije (23 jedinke sa lokaliteta Lugomir i 21 jedinka sa lokaliteta Bakreni Batar) i jedna iz Bosne i Hercegovine (32 jedinke sa lokaliteta Gromiželj). Za svaki istraživani lokalitet određeni su osnovni geografski parametri (geografska dužina, širina i nadmorska visina) i fizičko-hemijske karakteristike staništa (širina vodenog basena, dubina vode i mulja, temperatura vode i vazduha, pH vrednost, elektroprovodljivost, koncentracija kiseonika, saturacija kiseonikom, koncentracije amonijaka, nitrita i fosfata). Sve jedinke u uzorku su prvo fotografisane za potrebe analiza geometrijske morfometrije, a nakon toga su im merene totalna (TL) i standardna (SL) dužina tela i težina tela za potrebe analize strukture populacija. Takođe, jedinkama su uzete gonade za utvrđivanje pola, uzorci digestivnog trakta za analizu ishrane, uzorci krljušti za određivanje starosti i uzorci tkiva za analizu genetičke varijabilnosti. Na svim istraživanim lokalitetima utvrđen je kvalitativni sastav biljaka i riba, a izvršeno je i uzorkovanje beskičmenjaka iz mulja i submerzne vegetacije u cilju utvrđivanja njihovog kvalitativnog i kvantitativnog sastava i analize ishrane crnke. Sva tri istraživana lokaliteta prema analiziranim fizičko hemijskim parametrima i sastavom zajednice biljaka i riba predstavljaju tipična staništa crnke..." ]
[ "European mudminnow (Umbra krameri Walbaum, 1792) is the only autochthonous and relic species of the genus Umbra present in Europe, and it is endemic for the Danube and Dniester river basins. In scope of its present discontinuous range, due to habitat desiccation and pollution, the populations of European mudminnow significantly decreased during the last decades of the 20th century. For this reason it is listed on the IUCN Red List of Threatened Species as Vulnerable (VU). At the national level, it is listed as Critically Endangered (CR), with a serious threat to be soon extinct. The range of the species in Serbia and in Bosnia and Herzegovina is presented in this dissertation, including a newly recorded population in Serbia (locality Lugomir), along with the results of ecological and morphological-genetic differentiation of the analysed populations, and the threat status at the national level with threat factors and conservation measures. A total of 76 individuals from three populations, two from Serbia (23 individuals from Lugomir and 21 individuals from Bakreni Batar) and one from Bosnia and Herzegovina (32 individuals from Gromiželj), were sampled. Basic geographical parameters (longitude, latitude, altitude) were determined for each locality, along with physical and chemical habitat parameters (width of the water basin, water and silt depth, water and air temperature, pH, electroconductivity, oxygen concentration, oxygen saturation, ammonia, nitrites, phosphates). All sampled individuals were photographed for the purpose of geometric morphometrics analyses, and their total (TL) and standard (SL) body length and body weight were measured for population stucture analyses. Furthermore, gonads were taken for sex determination, digestive tract for diet analysis, scales for age determination, and tissue samples for genetic variability analysis. Species composition of aquatic plants and fishes was determined at all localities, and invertebrates from mud and submersed vegetation were sampled with the aim to determine their diversity and to analyse the diet of European mudminnow. For their physical-chemical parameters and aquatic plant and fish species composition all three studied localities represent typical habitats of European mudminnow..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Београду
[ "Umbra krameri", "Srbija", "Bosna i Hercegovina", "distribucija", "ekološke karakteristike", "geometrijska morfometrija", "genetička varijabilnost", "ugroženost", "zaštita" ]
[ "Umbra krameri", "Serbia", "Bosnia and Herzegovina", "distribution", "ecological characteristics", "geometric morphometrics", "genetic variability", "vulnerability", "conservation" ]
[ "Ekološke karakteristike i morfološko-genetička diferencijacija populacija crnke (Umbra krameri Walbaum, 1792) sa područja Bačke, Mačve i Semberije", "Ecological characteristics and morphological-genetic differentiation in populations of European mudminnoow (Umbra krameri Walbaum, 1792) from Bačka, Mačva and Semberija" ]
[ "" ]
doctoralThesis
[ "BY-NC" ]
Крпо-Ћетковић, Јасмина; Ленхардт, Мирјана; Јојић, Вида; Хегедиш, Aлександар; Марић, Саша; Секулић, Ненад К.;
[ "https://nardus.mpn.gov.rs/bitstream/id/2164/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2164/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2109" ]
10.2298/bg20131221sekulic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2137
123456789-2137.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7735/bdef:Content/download
no
Uticaj indukovane mutageneze na reproduktivno ponašanje Drosophila subobscura i uloga seksualne selekcije u odnosu na obim genetičkih opterećenja
The influence of induced mutagenesis on reproductive behavior of Drosophila subobscura and the role of sexual selection in relationto the level of mutational load
[ "Anđelković, Marko" ]
[ "Pavković-Lučić, Sofija", "Stamenković-Radak, Marina", "Kurbalija-Novičić, Zorana" ]
Savić Veselinović, Marija N.
2016-01-05T11:48:01
[ "2016-01-05T11:48:01", "2020-07-03T08:10:12" ]
2013-09-30
[ "https://nardus.mpn.gov.rs/handle/123456789/2137", "http://eteze.bg.ac.rs/application/showtheses?thesesId=1055", "https://fedorabg.bg.ac.rs/fedora/get/o:7735/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44888335" ]
[ "Prema teorijskim očekivanjima seksualna selekcija može smanjivati mutaciona opterećenja u populacijama. Mužjaci koji su boljeg genetičkog kvaliteta bi trebalo da budu uspešniji u parenju u poređenju sa mužjacima lošijeg genetičkog kvaliteta. Na taj način ženke, prilikom izbora partnera za parenje, mogu da eliminišu one mužjake koji nose štetne alele, i da smanje mogućnost prenošenja štetnih alela u sledeću generaciju. Seksualna selekcija će redukovati mutaciona opterećenja i povećavati adaptivnu vrednost populacije, ako je većina mutacija štetna i za adaptivnu vrednost i za osobine koje utiču na uspešnost mužjaka u parenju. Istraživanja poslednjih godina su dala rezultate koji idu u prilog ovoj teoriji, ali i oprečne rezultate. Ovakva kontradiktornost proizilazi iz kompleksnosti problematike usled različitih reproduktivnih strategija vrsta, kao i različitih reproduktivnih strategija mužjaka i ženki. Takođe, osobine koje utiču na komponente adaptivne vrednosti, kao i na uspešnost u parenju, su veoma složene, pod determinacijom velikog broja gena, i u čijoj osnovi leže kompleksne genske interakcije. Iako se kao osobine koje su cilj seksualne selekcije najčešće analiziraju sekundarne polne karakteristike, i mnoge druge osobine određuju atraktivnost mužjaka. To su i morfološke, fiziološke, ponašajne i druge osobine koje utiču na uspešnost u parenju, a mogu se nazvati osobinama koje su zavisne od opšteg stanja mužjaka (eng. condition-dependent traits)..." ]
[ "According to theoretical predictions sexual selection can reduce mutational load in populations. Males of good genetic quality should be more successful in matings, compared to the males of low genetic quality. In this way females, through the choice of mating partners, can eliminate males carriers of deleterious alleles, and reduce transmission of deleterious alleles to the next generation. Sexual selection will purge mutational load and increase fitness if most mutations were deleterious to both nonsexual fitness and condition-dependent traits affecting mating success. Studies in recent years have yielded results that support this theory, but opposite results are obtained, as well. This contradiction arises from different reproductive strategies of species, and different reproductive strategies of males and females. Traits that affect fitness components, as well as mating success, are under polygenic determination, with very complex gene interactions. Although secondary sexual traits were usually analyzed as target of sexual selection, many other traits can determine male attractiveness. Traits such as morphological, physiological, behavior and other, affecting mating success, can be termed as condition-dependent traits. In order to test this hypothesis, that sexual selection can reduce mutational load, two experimental groups were formed from the same population genetic pool of Drosophila subobscura, which differed in the level of mutational load. Mutations were induced in one group, using 30Gy ionizing radiation. The effect of sexual selection in reduction of mutational load was measured through different components of male mating behavior (courtship occurrence, courtship latency, courtship intensity, mating occurrence,latency to mating and duration of mating)...." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173012/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Drosophila subobscura", "seksualna selekcija", "mutacije", "reproduktivno ponašanje", "adaptivna vrednost" ]
[ "Drosophila subobscura", "sexual selection", "mutations", "mating behavior", "fitness" ]
[ "Uticaj indukovane mutageneze na reproduktivno ponašanje Drosophila subobscura i uloga seksualne selekcije u odnosu na obim genetičkih opterećenja", "The influence of induced mutagenesis on reproductive behavior of Drosophila subobscura and the role of sexual selection in relationto the level of mutational load" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Aнђелковић, Марко; Курбалија-Новичић, Зорана; Стаменковић-Радак, Марина; Павковић-Лучић, Софија; Савић Веселиновић, Марија Н.; Утицај индуковане мутагенезе на репродуктивно понашање Дросопхила субобсцура и улога сексуалне селекције у односу на обим генетичких оптерећења; Утицај индуковане мутагенезе на репродуктивно понашање Дросопхила субобсцура и улога сексуалне селекције у односу на обим генетичких оптерећења;
[ "https://nardus.mpn.gov.rs/bitstream/id/2262/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2262/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2137" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2096
123456789-2096.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:6759/bdef:Content/download
no
Značaj biološke heterogenosti karcinoma dojke za odgovor na terapiju antiestrogenima
Significance of biological heterogeneity of breast carcinomas in response to antiestrogen therapy
[ "Matić, Gordana" ]
[ "Nikolić-Vukosavljević, Dragica", "Korać, Aleksandra" ]
Abu Rabi, Zaki
2016-01-05T11:47:16
[ "2016-01-05T11:47:16", "2020-07-03T08:09:34" ]
2010-06-18
[ "https://nardus.mpn.gov.rs/handle/123456789/2096", "http://eteze.bg.ac.rs/application/showtheses?thesesId=594", "https://fedorabg.bg.ac.rs/fedora/get/o:6759/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=37387535" ]
[ "Karcinom dojke, kao najčešći oblik malignih tumora koji se javlja kod žena, spada u grupu heterogenih oboljenja zbog čega je veoma teško utvrditi tok bolesti i uspeh potencijalne terapije. Danas endokrina terapija tamoksifenom značajno produžava vreme bez ponovnog javljanja bolesti. Ipak usled poliklonalnosti tumora, koja se ispoljava i u klinički nedetektabilnim mikrimetastazama, uspeh terapije tamoksifenom je znatno smanjen. Pojava de novo rezistencije po davanju tamoksifena se javlja čak kod 50% pacijentkinja, dok se kod većeg broja pacijentkinja gde je inicijalna terapija bila uspešna kasnije javlja stečeni oblik rezistencije. Otkrivanje novih molekularnih biomarkera, kao i analiza njihove povezanosti sa kliničkim tokom bolesti, pomogla bi u izboru inicijalne terapije (prediktivna vrednost), kao i za predviđanje toka bolesti (prognostička vrednost). Analiza biološke heterogenosti estrogen zavisnog primarnog operabilnog karcinoma dojke, pacijentkinja u postmenopauzi lečenih tamoksifenom, imala je za cilj ispitivanje njenog značaja na klinički tok bolesti. Biološka heterogenost tumora ove grupe pacijentkinja je određivana na osnovu molekularnih biomarkera tumora: ER, PR, Her2, Ki-67, apoptotski indeks, uPA, PAI-1 i VEGF. Određivanje novih visokorizičnih fenotipova vršeno je u tri vremenska perioda kliničkog praćenja toka bolesti: prvih 2.5 godine terapije kako bi se utvrdila rana (de novo) rezistencija, perioda između 2.5 i 5 godina terapije radi definisanja stečene rezistencije i praćenje od 12 godina koje ima za cilj da ukaže na prognostički značaj biomarkera. Analizama u okviru ove studije obuhvaćeno je 127 pacijentkinja kod kojih je potvrđen primarni operabilni karcinom dojke. Nakon hiruške terapije sve pacijentkinje su primale terapiju tamoksifenom u trajanju od pet godina. Steroidni receptori su određivani klasičnom biohemijskom metodom, amplifikacija Her2 gena hromogenom in situ hibridizacijom (CISH), nivo Ki-67 je utvrđen imunohistohemijskom metodom, apoptotski indeks TUNEL metodom, dok je za određivanje nivoa proteina uPA, PAI-1 i VEGF korišćen ELISA test. Praćenje kliničkog toka bolesti pacijentkinja lečenih tamoksifenom u prvih 2.5 godina ukazalo je da od kliničko-patoloških parametara veličina tumora, a od biomarkera ER, PR, uPA i PAI-1 imaju značajnu prediktivnu ulogu. Pri tome tumori veći od 2 cm, zatim negativan status ER, PR i PAI-1 definišu pacijentkinje sa lošijim odgovorom na terapiju tamoksifenom. Pozitivan status uPA definiše podgrupu sa slabijim odgovorom na terapiju. Združivanje nepovoljnih karakteristika otkriva fenotipove sa još lošijim tokom bolesti, ukazujući na de novo rezistenciju. U periodu od 2.5-5 godina terapije amplifikacija Her2 gena kod pT2,3 tumora je pokazatelj stečene rezistencije na terapiju tamoksifenom. Visokorizične podgrupe dobijene za period prvih 2.5 godina ne pokazuju isti rizik i u periodu od 2.5-5 godina terapije. Prognostički značaj parametara, posmatran u periodu od 12 godina, otkriva da pacijentkinje starije od 66 godina imaju znatno lošiju prognozu bez obzira na status kliničko-patoloških parametara i biomarkera. Pozitivni statusi ER, PAI-1 i VEGF ukazuju na dobru prognozu. Ovi rezultati su nam pokazali da odnosi biomarkera, signalnih puteva, u trenutku dijagnoze mogu ukazati na vreme pojave rezistencije i udaljenih metastaza. Značaj datih biomarkera u prognozi i predikciji menja se u zavisnosti od vremena praćenja pacijentkinja." ]
[ "" ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "kancer dojke", "tamoksifen", "rezistencija" ]
[ "breast cancer", "tamoxifen", "resistance" ]
[ "Značaj biološke heterogenosti karcinoma dojke za odgovor na terapiju antiestrogenima", "Significance of biological heterogeneity of breast carcinomas in response to antiestrogen therapy" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Матић, Гордана; Кораћ, Aлександра; Николић-Вукосављевић, Драгица; Aбу Раби, Заки; Значај биолошке хетерогености карцинома дојке за одговор на терапију антиестрогенима; Значај биолошке хетерогености карцинома дојке за одговор на терапију антиестрогенима;
[ "https://nardus.mpn.gov.rs/bitstream/id/2117/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2117/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2096" ]
10.2298/bg20100618aburabi
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2062
123456789-2062.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3504/bdef:Content/download
no
Efekti kombinovane transkranijalne magnetne stimulacije i deprivacije spavanja u tretmanu major depresija
Effects of combined transcranial magnetic stimulation and sleep deprivation in the treatment of major depression
[ "Ilić, Tihomir V." ]
[ "Nedeljković, Nadežda", "Špirić, Željko" ]
Krstić, Jelena D.
2016-01-05T11:46:17
[ "2016-01-05T11:46:17", "2020-07-03T08:08:59" ]
2012-12-12
[ "https://nardus.mpn.gov.rs/handle/123456789/2062", "http://eteze.bg.ac.rs/application/showtheses?thesesId=94", "https://fedorabg.bg.ac.rs/fedora/get/o:3504/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024553138" ]
[ "Cilj rada. Cilj ovog rada je procena efekata kombinovane primene repetitivne transkranijalne magnetne stimulacije (rTMS) niske frekvencije (1 Hz) i parcijalne deprivacije spavanja (PDS) kod osoba obolelih od major depresije, koje prethodno pokazuju nezadovoljavajući odgovor na dva različita antidepresiva (ispunjavaju kriterijume terapijske rezistencije). Uporedo sa dugoročnim praćenjem (do 6 meseci) efekata ovog tretmana, analiziran je i genetički BDNF Val66Met polimorfizam, kao mogući perimisivni faktor plasticiteta odgovoran za predikciju efikasnosti primenjenih terapijskih strategija. Ispitanici i metode. Ukupno 20 osoba obolelih od major depresije, koje su ispunjavale kriterijume terapijske rezistencije tretirano je na navedeni način kombinacijom rTMS i PDS, uporedo sa njihovom prethodnom medikamentoznom terapijom. Kombinovani protokol rTMS i PDS sprovodio se tokom dve uzastopne nedelje, i za to vreme su ispitanici svakog dana, izuzev pauze za vikend dobijali stimulaciju rTMS (frekvencija 1 Hz, intenzitet 110% praga izazivanja motornog odgovora) primenjivanu iznad desnog dorzolateralnog prefrontalnog korteksa (DLPFK), u jutarnjim časovima. U svakoj nedelji po jednom, opisanoj rTMS, prethodila je redukcija noćnog spavanja uz buđenje u pola 2. Ispitanici su randomski podeljeni u grupu koja je primala rTMS+PDS i grupu koja je primala placebo (sham) rTMS stimulaciju + PDS. Procene efekta vršene su standardnim instrumentima kliničke procene (modifikovana Hamiltonova skala za procenu depresivnosti - HDRS-24; Montgomery-Asberg skala za procenu depresivnosti - MADRS, i skala opšteg kliničkog utiska), i to: pre početka primene protokola, neposredno po završetku, jednu nedelju kasnije, tri i šest meseci kasnije (dugoročna praćenja sprovedena su isključivo kod ispitanika koji su bili podvrgnuti aktivnom tretmanu). Rezultati. Primenjeni protokol stimulacije pokazao je antidepresivni efekat, kod osoba obolelih od unipolarne depresije na nepromenjenoj dozi antidepresivnih lekova koji se održavao tokom čitavog šestomesečnog perioda praćenja. Neposredno nakon 2 nedelje protokola ispitanici koji su primali aktivni rTMS imali su prosečno poboljšanje od 39%..." ]
[ "Objectives. The main aim of this study was to evaluate potential synergistic antidepressant effect of two therapies: repetitive transcranial magnetic stimulation (rTMS) applied at 1 Hz associated with partial sleep deprivation (PSD) in patients with treatment resistant major depression. Besides the long- term (during the next 6 months) evaluation of effecacy of this treatment, potential predictive role of brain-derived neurotrophic factor (BDNF) Val66Met genetic polymorphism in rTMS treatment response was analysed, as a factor of neuronal plasticity, also involved in patogenesis of major depression Subjects and methods Twenty patients with diagnoses of treatment resistant major depression, at fixed doses of antidepressants, were treated with combination of rTMS and PSD. rTMS was applied during two consecutive weeks (5 days/week) with frequency of 1Hz, at 110% intensity of resting motor threshold, over the right dorso-lateral prefrontal cortex (DLPFC), in the morrning hours. Partial sleep deprivation was applied once during every week, as late partial sleep deprivation (patients were woke up at 01.30 a.m.). Patients were randomly assigned to receive rTMS+PSD, or sham+PSD. Clinical evaluation was done using the following rating scales: the modified Hamilton depression rating scale (HDRS-24), Montgomery-Asberg rating scale (MADRS ) and Clinical global impression scale (CGI-S), at baseline, after 2 weeks of treatment and one week after treatment, as well as long-term follow-up (only patients treated with active rTMS). Results. Study results suggest clinically relevant response, lasted up to 6 months in patients with unipolar major depression at fixed doses of antidepressants. After 2 weeks of treatment, patients treated with active rTMS had the average improvement of 39% score reduction on HDRS..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "major depresija", "repetitivna transkranijalna magnetna stimulacija", "deprivacija spavanja", "BDNFVal66Met genetički polimorfizam" ]
[ "major depression", "repetitive transcranial magnetic stimulation", "sleep deprivation", "BDNF Val66Met genetic polymorphism" ]
[ "Efekti kombinovane transkranijalne magnetne stimulacije i deprivacije spavanja u tretmanu major depresija", "Effects of combined transcranial magnetic stimulation and sleep deprivation in the treatment of major depression" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Илић, Тихомир В.; Шпирић, Жељко; Недељковић, Надежда; Крстић, Јелена Д.; Ефекти комбиноване транскранијалне магнетне стимулације и депривације спавања у третману мајор депресија; Ефекти комбиноване транскранијалне магнетне стимулације и депривације спавања у третману мајор депресија;
[ "http://nardus.mpn.gov.rs/bitstream/id/1988/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1988/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2062" ]
10.2298/bg20121212krstic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/9483
123456789-9483.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:17662/bdef:Content/download
no
Razvoj metaboličkog sindroma izazvanog kombinacijom stresa i ishrane obogaćene fruktozom - doprinos glukokortikoida u visceralnom masnom tkivu i hipotalamusu ženke pacova
The development of metabolic syndrome induced by the combination of stress and fructose enriched diet - the contribution of glucocorticoids in visceral adipose tissue and hypothalamus of female rats
[ "Elaković, Ivana" ]
[ "Matić, Gordana", "Kanazir, Selma", "Elaković, Ivana", "Matić, Gordana" ]
Kovačević, Sanja R.
2018-05-28T12:07:00
[ "2018-05-28T12:07:00", "2020-07-03T08:14:22" ]
2017-09-26
[ "https://nardus.mpn.gov.rs/handle/123456789/9483", "http://eteze.bg.ac.rs/application/showtheses?thesesId=5789", "https://fedorabg.bg.ac.rs/fedora/get/o:17662/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=50060815" ]
[ "Savremen način života karakterišu prekomeran unos fruktoze i svakodnevni stres koji koincidiraju sa pojavom metaboličkog sindroma (MetS), vodećeg faktora rizika za razvoj dijabetesa tipa 2 i bolesti srca. Narušen signalni put glukokortikoidnih hormona (GH), regulatora metabolizma i odgovora na stres, može biti uključen u patofiziologiju MetS-a. Cilj ove doktorske disertacije bio je da se testira hipoteza da fruktoza u kombinaciji sa hroničnim stresom dovodi do poremećaja u signalnom putu GH odgovornih za razvoj karakteristika MetS-a kod ženki pacova. U tom cilju ispitani su efekti devetonedeljnog izlaganja ishrani obogaćenoj fruktozom i nepredvidivom stresu na prereceptorski metabolizam GH, ekspresiju i funkciju glukokortikoidnog receptora i njime regulisanih gena uključenih u metabolizam masti u visceralnom masnom tkivu (VMT). Pod istim uslovima ispitani su i leptinski signalni put u hipotalamusu i inflamatorni status oba pomenuta tkiva. Rezultati pokazuju da dugoročna ishrana obogaćena fruktozom stimuliše adipogenezu i de novo lipogenezu u VMT-u, dok hronični nepredvidivi stres promoviše lipolizu. Iako suprotni, ovi efekti su najverovatnije posledica aktivnosti GH. Nijedan od tretmana nije uticao na leptinski signalni put niti na regulaciju unosa hrane u hipotalamusu. Takođe, rezultati sugerišu da je inflamacija u VMT-u jedna od prvih posledica konzumiranja fruktoze budući da se razvija pre nego što se mogu uočiti gojaznost i inflamacija u hipotalamusu. Sumarno, fruktoza svojim lipogenim uticajem uzrokuje metaboličke i fiziološke promene koje doprinose razvoju metaboličkog sindroma, dok su posledice hroničnog stresa izraženije u odnosu na efekte fruktoze i predominantno usmeravaju metabolizam ka potrošnji energije, pri čemu u oba slučaja GH ostvaruju značajan doprinos." ]
[ "Hallmarks of modern lifestyle, fructose overconsumption and daily exposure to unpredictable stress, coincide with the onset of metabolic syndrome (MetS), leading risk factor for the development of type 2 diabetes and cardiovascular diseases. Glucocorticoid hormones (GC), main regulators of metabolism and response to stress, could be involved in the pathophysiology of MetS. The aim of this doctoral dissertation was to test the hypothesis that the combination of fructose diet and chronic unpredictable stress evokes disturbances in GC signaling responsible for the development of MetS in female rats. We analyzed the effects of 9 week exposure to fructose enriched diet and stress on GC prereceptor metabolism, expression and function of glucocorticoid receptor and receptor regulated genes involved in lipid metabolism in visceral adipose tissue (VAT). Also, we analyzed leptin signaling in hypothalamus and inflammation in both tissues. Results showed that long term fructose overconsumption stimulated adipogenesis and de novo lipogenesis in VAT, while chronic stress promoted lipolysis. Although opposing, these effects probably result from the GC activity. Leptin signaling and appetite regulation in hypothalamus were not affected by these treatments. Also, results suggest that VAT inflammation is one of the first consequences of fructose overconsumption as it was developed before the onset of obesity and inflammation in hypothalamus. In summary, lipogenic effects of fructose elicit metabolic and physiologic disturbances that contribute to the development of MetS, while chronic stress predominantly directs metabolism to energy expenditure and exceeds the effects of fructose. In both cases, GC play a significant role." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41009/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "glukokortikoidni hormoni", "glukokortikoidni receptor", "fruktoza", "hronični nepredvidivi stres", "visceralno masno tkivo", "metabolizam lipida", "hipotalamus", "leptin", "inflamacija", "mlade i adultne ženke pacova" ]
[ "glucocorticoid hormones", "glucocorticoid receptor", "fructose", "chronic unpredictable stress", "visceral adipose tissue", "lipid metabolism", "hypothalamus", "leptin", "inflammation", "young and adult female rats" ]
[ "Razvoj metaboličkog sindroma izazvanog kombinacijom stresa i ishrane obogaćene fruktozom - doprinos glukokortikoida u visceralnom masnom tkivu i hipotalamusu ženke pacova" ]
[ "The development of metabolic syndrome induced by the combination of stress and fructose enriched diet - the contribution of glucocorticoids in visceral adipose tissue and hypothalamus of female rats" ]
doctoralThesis
[ "BY-NC-SA" ]
Елаковић, Ивана; Каназир, Селма; Матић, Гордана; Матић, Гордана; Елаковић, Ивана; Ковачевић, Сања Р.; Развој метаболичког синдрома изазваног комбинацијом стреса и исхране обогаћене фруктозом - допринос глукокортикоида у висцералном масном ткиву и хипоталамусу женке пацова; Развој метаболичког синдрома изазваног комбинацијом стреса и исхране обогаћене фруктозом - допринос глукокортикоида у висцералном масном ткиву и хипоталамусу женке пацова;
[ "https://nardus.mpn.gov.rs/bitstream/id/3311/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/3312/IzvestajKomisije16895.pdf", "http://nardus.mpn.gov.rs/bitstream/id/3311/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/3312/IzvestajKomisije16895.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_9483" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2102
123456789-2102.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7056/bdef:Content/download
no
Parametri antioksidacionog zaštitnog sistema i koncentracija teških metala u visceralnoj masi odabranih vrsta puževa i školjki Dunava, Tise i Velike Morave
Parameters of the antioxidant defence system and heavymetal concentrations in the visceral mass of selected snail and musselspecies from the Danube, Tisa and Velika Morava rivers
[ "Pavlović, Slađan" ]
[ "Đurašević, Siniša", "Saičić, Zorica S.", "Paunović, Momir", "Gačić, Zoran" ]
Despotović, Svetlana G.
2016-01-05T11:47:23
[ "2016-01-05T11:47:23", "2020-07-03T08:09:41" ]
2013-07-05
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=756", "https://nardus.mpn.gov.rs/handle/123456789/2102", "https://fedorabg.bg.ac.rs/fedora/get/o:7056/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024577202" ]
[ "Slatkovodni mekušci su dobri model organizmi za proučavanje uticaja faktora sredine u biomonitoring studijama zbog svojih karakteristika: slabe pokretljivosti, načina ishrane, brojnosti, veličine tela i dr. Oni imaju sposobnost da u svom telu akumuliraju znatne količine zagađujućih materija. Na osnovu analize sadržaja ovih materija u mekušcima moguće je zaključivati o kvalitetu sredine. Cilj ove doktorske disertacije bio je da se ispita uticaj različitih lokaliteta: reka Dunav, Tisa i Velika Morava na promene u parametrima antioksidacionog zaštitnog sistema: superoksid-dismutaze (SOD, EC 1.15.1.1), katalaze (CAT, EC 1.11.1.6), glutationperoksidaze (GSH-Px, EC 1.11.1.9), glutation-reduktaze (GR, EC 1.6.4.2), enzima faze II biotransformacije glutation-S-transferaze (GST, EC 2.5.1.18), kao i koncentraciju glutationa (GSH). Parametri su ispitivani u visceralnoj masi puža Viviparus acerosus i školjke Corbicula fluminea. Interspecijske razlike su praćene analizom parametara antioksidacionog zaštitnog sistema u visceralnoj masi puževa V. acerosus, Amphimelania holandrii i školjki C. fluminea i Sinanodonta woodiana iz Velike Morave. Uticaj sezonskih faktora određivan je tokom aprila i septembra u visceralnoj masi vrste V. acerosus iz Dunava, Tise i Velike Morave. Analizirane su koncentracije 15 metala u visceralnoj masi sve četiri vrste slatkovodnih mekušaca u aprilu. Značajne razlike aktivnosti SOD u visceralnoj masi puža V. acerosus iz različitih reka čine ovaj enzim pogodnim biomarkerom u ekofiziološkim studijama. Varijacije aktivnosti GST u visceralnoj masi školjke C. fluminea iz različitih reka, ukazuju na to da se i ovaj enzim može koristiti kao biomarker. Uporedni pregled parametara antioksidacionog zaštitnog sistema četiri vrste slatkovodnih mekušaca izdvajaju A. holandrii kao potencijalnu bioindikatorsku vrstu. Odsustvo jasnog sezonskog uticaja na GST u visceralnoj masi V. acerosus izdvaja ovaj enzim kao potencijalno dobar biomarker..." ]
[ "Freshwater molluscs are a good model organism for studying the effects of environmental factors in biomonitoring studies due to their following characteristics: poor mobility, diet, numbers, size. They have the ability to accumulate in their body significant amounts of pollutants. By analysing the contents of these substances in molluscs we can draw conclusions about the quality of the environment. The aim of this PhD thesis was to investigate the effects of different localities, the Danube, Tisa and Velika Morava Rivers, on changes in the parameters of the antioxidative defence system: the enzymatic activities of superoxide dismutase (SOD; EC 1.15.1.1), catalase (CAT; EC 1.11.1.6), glutathione-peroxidase (GSH-Px; EC 1.11.1.9), glutathionereductase (GR; EC 1.6.4.2), and phase II biotransformation enzyme glutathione-S-transferase (GST; EC 2.5.1.18), and glutathione (GSH) concentration. The parameters were investigated in the visceral mass of the snail Viviparus acerosus and mussel Corbicula fluminea. Interspecies differences were followed by analysing the parameters of the antioxidative defense system in the visceral mass of snails, V. acerosus, Amphimelania holandrii, and mussels, C. fluminea and Sinanodonta woodiana, from the Velika Morava River. Seasonal changes were determined during April and September in the visceral mass of species, V. acerosus from the Danube, Tisa and Velika Morava. We analyzed the concentrations of 15 metals in the visceral mass of all four species of freshwater molluscs in April. Significant differences in SOD activities in the visceral mass of the snail V. acerosus from different rivers render this enzyme a suitable biomarker for ecophysiological studies. Variations in GST activities in the visceral mass of the mussel C. fluminea from different rivers can also be considered as a good biomarker. A comparative review of the parameters of the antioxidative defence system in four species of freshwater molluscs distinguish A. holandrii as a potential bioindicator species. The absence of a clear seasonal impact on GST in the visceral mass of V. acerosus makes this enzyme a good biomarker. The potential of freshwater molluscs to bioaccumulate metals studied in this dissertation showed that V. acerosus is a good indicator of metal pollution in river systems..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173041/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "parametri antioksidacionog zaštitnog sistema", "slatkovodni mekušci", "visceralna masa", "metali", "Dunav", "Tisa", "Velika Morava" ]
[ "antioxidant defence system parameters", "freshwater molluscs", "visceral mass", "metals", "Dunav", "Tisa", "Velika Morava" ]
[ "Parametri antioksidacionog zaštitnog sistema i koncentracija teških metala u visceralnoj masi odabranih vrsta puževa i školjki Dunava, Tise i Velike Morave", "Parameters of the antioxidant defence system and heavymetal concentrations in the visceral mass of selected snail and musselspecies from the Danube, Tisa and Velika Morava rivers" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Павловић, Слађан; Саичић, Зорица С.; Гачић, Зоран; Ђурашевић, Синиша; Пауновић, Момир; Деспотовић, Светлана Г.; Параметри антиоксидационог заштитног система и концентрација тешких метала у висцералној маси одабраних врста пужева и шкољки Дунава, Тисе и Велике Мораве; Параметри антиоксидационог заштитног система и концентрација тешких метала у висцералној маси одабраних врста пужева и шкољки Дунава, Тисе и Велике Мораве;
[ "https://nardus.mpn.gov.rs/bitstream/id/2144/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2144/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2102" ]
10.2298/bg20130705despotovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/10621
123456789-10621.pdf
yes
yes
https://fedorabg.bg.ac.rs/fedora/get/o:19234/bdef:Content/download
no
Molekularno kloniranje i analiza gena za aspartičnu proteinazu heljde (Fagopyrum esculentum Moench)
Molecular cloning and analysis of the aspartic proteinase gene from buckwheat (Fagopyrum esculentum Moench)
[ "Maksimović, Vesna" ]
[ "Radović, Svetlana", "Fira, Đorđe" ]
Timotijević, Gordana
2019-01-18T09:36:11
[ "2019-01-18T09:36:11", "2020-07-03T08:11:26" ]
2009
[ "https://nardus.mpn.gov.rs/handle/123456789/10621", "http://eteze.bg.ac.rs/application/showtheses?thesesId=6492", "https://fedorabg.bg.ac.rs/fedora/get/o:19234/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=36635919" ]
[ "Dve parcijalne cDNK (FeAP9 i FeAP12) koje kodiraju aspartične proteinaze heljde su dobijene primenom metode PCR sa degenerativnim prajmerima dizajniranim na osnovu konzervisanih sekvenci biljnih aspartičnih proteinaza (AP). Korišćenjem 5’ i 3’ RACE (rapid amplification of cDNA ends) pristupa, odgovarajući 5’ i 3’ krajevi sekvence FeAP9 su amplifikovani i rekonstruisana je kompletna sekvenca. Utvrđeno je da FeAP9 sadrži otvoreni okvir čitanja od 1521 bp koji kodira prekursorni protein od 507 ak. Poređenje aminokiselinskih sekvenci sa ostalim biljnim AP pokazalo je da FeAP9 i FeAP12 imaju veliku homologiju sa tipičnim aspartičnim proteinazama i da sadrže PSI (plant specific insert) sekvencu karakterističnu samo za biljne AP. Uočena je i karakteristična struktura: signalna sekvenca, prosegment i nizvodna polipeptidna sekvenca sastavljena od dva lanca zrelog enzima koja su razdvojena PSI regionom. Dodatno je iz gDNK heljde izolovan i genomski klon FeAP9 dužine 5374 bp koji sadrži 12 introna i ova strukturna organizacija pokazuje sličnost sa većinom biljnih AP. Dodatno je otkriveno prisustvo lider introna koji je lociran samo 1 bp uzvodno od ATG u 5’UTR regionu AP gena. Kompjuterska analiza ovog introna ukazuje na prisustvo potencijalnih regulatornih sekvenci koje mogu biti uključene u odgovor na različite stimuluse. U cilju ispitivanja ekspresije gena za FeAP vršena su analize iRNK različitih organa heljde u normalnim fiziološkim stanjima ili u uslovima različitih faktora abiotičkog stresa. Primenjene su metode Northern blot, RT PCR i Real-time PCR uz upotrebu proba ili prajmera specifičnih za FeAP9/FeAP12. Pokazano je da se FeAP9 eksprimira u semenu, listu, cvetu i korenu heljde, a maksimum ekspresije u semenu dostiže se u fazi 19-23 dana nakon cvetanja. Osim toga, uočeno je da nivo ekspresije FeAP9 dramatično raste u senescentnom listu. Ekspresija FeAP12 vezana je samo za seme, a profil ove ekspresije se razlikuje u odnosu na profil ekspresije FeAP9. Utvrđeno je takođe da se nivo FeAP9 transkripta povećava u listovima biljaka koje su izlagane suši, mraku, mehaničkim povredama i salicilnoj kiselini, što ukazuje na moguću ulogu ovog gena u odgovoru na stres. Takođe je proizveden rekombinanti FeAP9 protein korišćenjem pMAL ekspresionog vektora, međutim protein je pretežno bio lokalizovan u inkluzionim telima, a različite metode renaturacije nisu dovele do proteinazne aktivacije. Napravljena su primarna poliklonska antitela koja prepoznaju 14 ak dug oligopeptid koji odgovara N terminusu FeAP9 proteina i korišćena su za imunodetekciju u analizi Western blot. Pri redukujućim uslovima antitelima smo detektovali protein od 47 kDa u svima analiziranim tkivima, osim u cvetu gde je bio prisutan protein od oko 52 kDa. U prisustvu β-merkaptoetanola detektovan je polipeptid of 32 kDa u stablu, listu, korenu i semenu, dok je polipeptid od 26 kDa uočen u cvetovima, što je verovatno posledica post-translacione obrade. Imunodetekcijom je pokazano da se FeAP9 akumulira u semenu tokom sazrevanja i da je prisutan u početnim fazama germinacije. Osim toga, FeAP9 je bio zastupljen u svim fazama razvića listova, kao i u tučkovima razvijenih cvetova heljde." ]
[ "Two partial cDNAs (FeAP9 and FeAP12) encoding for buckwheat aspartic proteianse were obtained by PCR with degenerate primers designed for conserved sequences of plant aspartic proteinases (APs). Using rapid amplification of cDNA ends approach, 5’ and 3’ends appropriate to FeAP9 has been amplified and full length sequence was reconstructed. It was found that FeAP9 cDNA contained open reading frame of 1521 bp encoding precursor polypeptide of 507 aa. Alignment of deduced amino acid sequences with other plant APs demonstrated that FeAP9 and FeAP12 contained a plant specific insert of 104 amino acids (aa), a unique sequence of plant APs. Derived amino acid sequence comprised: signal sequence, prosegment and downstream polypeptide sequence that includes two chains of the mature enzyme separated by PSI. In addition, we have isolated genomic clon FeAP9 of 5374 bp from buckwheat gDNA. Structural organization of aspartic proteinase AP9 gene was similar to majority of plant APs containing 12 introns. Also, we have reveled presence of the leader intron located 1 bp ustream of the ATG in 5’UTR region of AP gene. Computer analiysis of the leader intron predicted the existence of regulatory sequences that could be involved in responses to different stimuli. In order to investigate expression of the buckwheat FeAP, Northern blot analysis was performed with gene specific probe and total RNA isolated from different buckwheat organs, as well as from the seeds throughout development. It was shown that AP is expressed in buckwheat seeds, leaves, flowers and roots. Expression reached maximum at stage of 19-23 days after flowering. Also, it was detected that the level of AP expression dramatically increases during leaf senescence. In order to distinguish precise difference in expression of FeAP9 and FeAP12 genes we have designed primers from 3’ UTR of FeAP9 gene and gene specific primers from coding FeAP12 sequence. RT PCR experimentes indicate that FeAP9 is ubiquitinously expressed in all analyzed tissues, while FeAP12 expression is seed specific and its profile of expression differs in relation to FeAP9 profile. Furthermore we monitored FeAP9 expression changes in response to a variety of abiotic stresses using Real-time PCR. We found that the expression is upregulated by exposure to drought, darkness, wounding and SA, indicating a likely role for the gene in stress responses. Finally, we have produced recombinant FeAP9 protein using pMAL expression vector, but protein was located mostly in inclusion bodies and different refolding methods did not result in activation of the proteinase. Therefore, primary polyclonal antibodies against oligopeptide corresponding to the N-terminal 14 residues of FeAP9 was produced and used in Western blot analysis. Under nonreducing condition protein of 47 kDa corresponding to FeAP9 was detected in all analyzed tissues except in the flowers, where the protein of 52 kDa was present. In the presence of β-mercaptoethanol we detected polypeptide of 32 kDa in steams, leaves, roots and seeds, while 26 kDa polypeptide was noticed in flowers. Imunodetection showed that FeAP9 was accumulated during seed development and it was present in early stages of germination. Moreover, FeAP9 was detected in all stages of leaf development, as well as in pistils of fully opened buckwheat flowers." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/MPN2006-2010/143017/RS//" ]
[ "openAccess" ]
[ "" ]
Универзитет у Београду
[ "" ]
[ "" ]
[ "Molekularno kloniranje i analiza gena za aspartičnu proteinazu heljde (Fagopyrum esculentum Moench)" ]
[ "Molecular cloning and analysis of the aspartic proteinase gene from buckwheat (Fagopyrum esculentum Moench)" ]
doctoralThesis
[ "ARR" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/2517/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2517/Disertacija.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:19234/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_10621" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2073
123456789-2073.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:5390/bdef:Content/download
no
Galektin-1 i funkcionalna svojstva ćelija trofoblasta čoveka in vitro
Galectin-1 and functional properties of human trophoblast cells in vitro.
[ "Vićovac-Panić, Ljiljana" ]
[ "Korać, Aleksandra", "Korać, Aleksandra", "Bojić-Trbojević, Žanka" ]
Kolundžić, Nikola M.
2016-01-05T11:46:37
[ "2016-01-05T11:46:37", "2020-07-03T08:09:11" ]
2012-12-26
[ "https://nardus.mpn.gov.rs/handle/123456789/2073", "http://eteze.bg.ac.rs/application/showtheses?thesesId=154", "https://fedorabg.bg.ac.rs/fedora/get/o:5390/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024554930" ]
[ "U zoni interakcije majke i fetusa galektin-1 (gal-1) je eksprimiran na način koji ukazuje na njegovu moguću ulogu u ćelijskoj adheziji, migraciji i invaziji trofoblasta, procesima koji su ključni za implantaciju embriona i formiranje funkcionalne placente. Međutim, uloga gal-1 u trofoblastu čoveka dosada nije bila ispitivana, što je predmet istraživanja ovog doktorskog rada. U tu svrhu korišćeni su odgovarajući funkcionalni in vitro testovi adhezije, migracije i invazije na modelima invazivnog trofoblasta (izolovanom citotrofoblastu iz placenti prvog trimestra normalne trudnoće, imortalizovanoj ekstravilusnoj ćelijskoj linija HTR-8/SVneo, i, u manjoj meri, na horiokarcinomskoj ćelijskoj liniji JAr). Obzirom da gal-1 sintetišu i ekstravilusne trofoblastne i decidualne stromalne ćelije in vivo, u ovom radu je ispitivan mogući uticaj kako endogenog (upotrebom antitela prema gal-1 koja blokiraju i funkciju gal-1), tako i egzogenog gal-1 (upotrebom dveju molekulskih formi rekombinantnog humanog gal-1 dokazane biološke aktivnosti, od kojih jedna poseduje lektinsku aktivnost - CS-gal-1, a druga ne - Ox-gal-1) na funkcionalna svojstva trofoblasta in vitro. Značaj lektinskih interakcija za funkciju trofoblastnih ćelija ispitivan je funkcionalnim testovima u prisustvu laktoze (inhibitornog šećera za lektinski tip interakcija galektina). Zbog činjenice da se obrasci ekspresije, kao i funkcije galektina često znatno preklapaju, utvrđen je galektinskog profila invazivnog trofoblasta na nivou RNK i proteina. U ovom radu je po prvi put pokazan funkcionalni značaj nekog od galektina za invazivnost trofoblasta čoveka in vitro, kvalifikujući gal-1 za važnog člana grupe molekula koji učestvuju u trofoblastnoj invaziji. Pokazali smo da endogeni gal-1, kao i dodatni egzogeni gal-1 (obe ispitivane molekulske forme) stimulišu invaziju trofoblasta, što ukazuje na mogućnost da bi i u uslovima in vivo, gal-1, kako trofoblastnog, tako i decidualnog porekla, mogao biti uključen u ovaj proces. Dobijeni rezultati su pokazali i da se ovaj uticaj gal-1 na invazivnu sposobnost trofoblasta ostvaruje pre svega njegovom lektinskom aktivnošću. Ovim radom je po prvi put utvrđen galektinski profil invazivnog trofoblasta koji čine gal-1, gal-3, i do sada u trofoblastu čoveka neidentifikovani član galektinske familije, gal-8." ]
[ "Galectin-1 (gal-1) is expressed at the fetomaternal interface in a manner suggestive of a potential involvement in cell adhesion, migration and invasion of the human trophoblast. These processes are considered essential for the embryo implantation and formation of the functional placenta. However, no studies have examined the role of the gal-1 in the human placenta. Hypothesis that gal-1 may be relevant for trophoblast invasion was addressed by this thesis for the first time. To this end appropriate functional tests of cell adhesion, migration and invasion were performed in vitro, using invasive trophoblast models (isolated first trimester cytotrophoblast, immortalized extravillous HTR-8/SVneo cell line and choriocarcinoma JAr cell line). Since gal-1 is synthesised by both extravillous cytotrophoblast and decidual stromal cells in vivo, selected approaches addressed possible effect of both endogenous and exogenous gal-1. Use of function blocking anti-gal-1 antibody provided an insight into participation of endogenous gal-1, while supplementation by either molecular form of biologically active recombinant human gal-1, CS-gal-1 (with lectin activity) or Ox-gal-1 (without lectin activity) indicated relevance of exogenous gal-1 for trophoblast invasion in vitro. The importance of lectin-type interactions was investigated primarily using lactose (an inhibitory sugar for galectins). Since the expression patterns and functions of galectins often overlap, galectin profile of the invasive trophoblast at RNA and protein levels was established here. This is the first study to address the functional relevance of any galectin for human trophoblast invasivness in vitro, qualifying gal-1 as an important member of the trophoblast cell invasion machinery. It is documented here that endogenous gal-1, as well as additional exogenous gal-1 (both forms, but particularly the form with lectin activity) participate in trophoblast invasion, suggesting possible involvement of trophoblastic and decidual gal-1 in this process in vivo. Galectin profile of the invasive trophoblast was established here for the first time, which comprised of gal-1, gal-3 and gal-8" ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173004/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "gal-1", "trofoblast", "ćelijska invazija", "izolovani citotrofoblast", "HTR-8/SVneo", "JAr", "galektinski profil", "gal-8" ]
[ "gal-1", "trophoblast", "cell invasion", "isolated cytotrophoblast", "HTR-8/SVneo", "JAr", "galectin profile", "gal-8" ]
[ "Galektin-1 i funkcionalna svojstva ćelija trofoblasta čoveka in vitro", "Galectin-1 and functional properties of human trophoblast cells in vitro." ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Вићовац-Панић, Љиљана; Бојић-Трбојевић, Жанка; Кораћ, Aлександра; Кораћ, Aлександра; Колунджић, Никола М.; Галектин-1 и функционална својства ћелија трофобласта човека ин витро; Галектин-1 и функционална својства ћелија трофобласта човека ин витро;
[ "https://nardus.mpn.gov.rs/bitstream/id/2031/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2031/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2073" ]
10.2298/bg20121226kolundzic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2067
123456789-2067.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3366/bdef:Content/download
no
Značaj fitoplanktona kao indikatora eutrofikacije u akvatorijumu Bokokotorskog zaliva
Importance of phytoplankton as indicator of eutrophication in aquatorium of the Boka Kotorska Bay
[ "Cvijan, Mirko" ]
[ "Cvijan, Mirko", "Vuksanović, Nenad", "Krizmanić, Jelena", "Krivokapić, Slađana" ]
Drakulović, Dragana D.
2016-01-05T11:46:20
[ "2016-01-05T11:46:20", "2020-07-03T08:09:03" ]
2012-10-10
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=59", "https://nardus.mpn.gov.rs/handle/123456789/2067", "https://fedorabg.bg.ac.rs/fedora/get/o:3366/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41904655" ]
[ "Fitoplanktonski organizmi su primarna karika u lancima ishrane, odnosno primarni producenti organskih supstanci. Sa jedne strane se ističe njihova važnost u ishrani, a sa druge njihov povećan razvoj može da dovede do neželjenih posljedica za ekosistem. Cilj ovog istraživanja je bio da se prikaže kvalitativno i kvantitativno stanje fitoplanktona u Bokokotorskom zalivu, uključujući tu u posljednjem slučaju i biomasu fitoplanktona, a izraženu preko koncentracije hlorofila a. Preko kvalitativnog i kvantitativnog aspekta fitoplanktona može se stvoriti okvirna slika o stepenu eutrofikacije u zalivu i ukazati na moguće opasnosti i mjere koje treba preduzeti da bi se izbjegle negativne posljedice. Sve nabrojane biološke parametre nije moguće odvojiti od fizičko-hemijskih parametara sa kojima su u međusobnoj interakciji i koji direktno utiču na količinu i sastav fitoplanktona. Brojnost fitoplanktona je često dostizala vrijednosti 106 ćelija/l, što je karakteristično za eutrofno područje i nije bila ispod 105 ćelija/l tokom cijelog istraživanja, što opet ukazuje na povećanu eutrofikaciju. Fitoplanktonska grupa koja je dominirala tokom istraživanja su bile dijatomeje, koje su eurivalentna grupa organizama. Druga grupa organizama koja je bila prisutna su dinoflagelate, koje su interesantne s obzirom da mnoge od njih proizvode toksine koji mogu biti štetni za čovjeka. Među dijatomejama zabilježene su vrste koje su karakteristične za područja bogata nutrijentima, što govori o promjenama u zalivu. Alge koje su nađene, a koje preferiraju povećanu količinu nutrijentima su Chaetoceros affinis, Dactyliosolen fragilissimus, Leptocylindrus danicus, Navicula spp., Pseudonitzschia spp., Thalassionema nitzschioides i dr. Analizirani su indeksi diverziteta Shannon-ov indeks diverziteta (H’), recipročan Simpson-ov indeks(1/D) i Margalef-ov indeks (d) za područje Bokokotorskog zaliva i nađeno je da su indeksi bili manji kada je brojnost fitoplanktona bila veća i kada je bila prisutna dominacija određenih vrsta, kao npr. u julu mjesecu kada je dominirala vrsta Thalassionema nitzshioides. To ukazuje na činjenicu da je diverzitet manji kada je prisutna dominacija određenih vrsta. U odnosu na biomasu fitoplanktona izraženu koncentracijom hlorofila a, prema raznim kriterijumima (Håkanson et al., 1994; Ignatiades 2005), zalivsko područje je okarakterisano kao mezo-eutrofno područje. S obzirom da parametri koji pokazuju stepen eutrofikacije ukazuju da Bokokotorski zaliv počinje da dobija karakteristike eutrofnog, treba preduzeti mjere da bi se spriječilo dalje napredovanje prema još višem stepenu eutrofije. Bokokotorski zaliv je jedan osjetljiv ekosistem, a naročito Kotorski zaliv koji je zatvoreniji, sa slabijom dinamikom vodenih masa i pod većim pritiskom eutrofikacije. slabijom dinamikom vodenih masa i pod većim pritiskom eutrofik" ]
[ "Phytoplankton organisms are primary link in the food chain and primary producers of organic substances. On one side, it is emphasissed their importance in the diet and, on the other, their excessive growth can lead to undesirable consequences for the ecosystem. The aim of this study is to present qualitative and quantitative situation of phytoplankton in the Boka Kotorska Bay, including in the last case phytoplankton biomass too, which is expressed through the concentration of chlorophyll a. Through qualitative and quantitative aspects of phytoplankton can be create a general overview of the degree of eutrophication in the Bokakotorska Bay and to point out possible hazards and precautions to be taken to avoid negative consequences. All these biological parameters can not be separated from the physical-chemical parameters with which they are in interaction and which directly affect the quantity and qualitative composition of phytoplankton. The abundance of phytoplankton often reached values of 106 cells/l, which is typical for an eutrophic area and abundance of phytoplankton wasn’t below 105 cells/l throughout the study, which again points to increased eutrophication. Phytoplankton group that has dominated almost during all investigated period were diatoms, which are eurivalent group of organisms. Another group of organisms that were present were dinoflagellates, which are interesting because they produce toxins that can be harmful to humans. Among diatoms, it was found algae that are otherwise characteristic of nutrients-enriched areas, which indicate changes in the Bay. Noticed algae that prefer higher nutrients concentration were Chaetoceros affinis, Dactyliosolen fragilissimus, Leptocylindrus danicus, Navicula spp., Pseudo-nitzschia spp. and Thalassionema nitzschioides. The following diversity were analyzed: Shannon's diversity index (H '), the reciprocal of Simpson's index (1 / D) and Margalef's index (d) for the Boka Kotorska Bay. It was found that indices were lower when phytoplankton abundance was higher and when the dominance of certain species was noticed, such in current study it was in July, when dominated species Thalassionema nitzshioides. That suggests that diversity is lower when occurrs predominance of certain species. In relation to phytoplankton biomass expressed in chlorophyll a concentration, according to various criteria (Håkanson et al., 1994; Ignatiades 2005), Boka Kotorska Bay was identified as meso-eutrophic area. Considering that parameters which indicate the degree of eutrophication suggest that the Boka Kotorska Bay begins to take characteristic of eutrophic area, it should be taken measures to prevent further progression to an even higher degree of eutrophication. Boka Kotorska Bay is one particularly sensitive ecosystem, especially the Kotor Bay, which is closed and with the weaker dynamics of water masses and under the growing pressure of eutrophication." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Fitoplankton", "eutrofikacija", "indikacija", "Bokokotorski zaliv", "Crna Gora" ]
[ "Phytoplankton", "eutrophication", "indication", "Boka Kotorska Bay", "Montenegro" ]
[ "Značaj fitoplanktona kao indikatora eutrofikacije u akvatorijumu Bokokotorskog zaliva", "Importance of phytoplankton as indicator of eutrophication in aquatorium of the Boka Kotorska Bay" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Цвијан, Мирко; Кризманић, Јелена; Кривокапић, Слађана; Цвијан, Мирко,; Вуксановић, Ненад; Дракуловић, Драгана Д.; Значај фитопланктона као индикатора еутрофикације у акваторијуму Бококоторског залива; Значај фитопланктона као индикатора еутрофикације у акваторијуму Бококоторског залива;
[ "https://nardus.mpn.gov.rs/bitstream/id/2003/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2003/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2067" ]
10.2298/bg20121010drakulovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2121
123456789-2121.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7126/bdef:Content/download
no
Metilovanje promotora i ekspresija estrogenskog receptora beta (ERß) u invazivnim karcinomima dojke
Estrogen receptor beta (ERß) promoter methylation and expression in invasive breast cancers
[ "Mandušić, Vesna" ]
[ "Stamenković-Radak, Marina", "Krtolica-Žikić, Koviljka" ]
Božović, Ana M.
2016-01-05T11:47:46
[ "2016-01-05T11:47:46", "2020-07-03T08:10:23" ]
2013-07-03
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=799", "https://nardus.mpn.gov.rs/handle/123456789/2121", "https://fedorabg.bg.ac.rs/fedora/get/o:7126/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44646927" ]
[ "Invazivni karcinom dojke je najčešći kancer kod žena. Pored genetičkih i epigenetički faktori imaju važnu ulogu u njegovoj inicijaciji i progresiji. Cilj ove studije bio je ispitati da li metilacija promotora ON, gena za ERβ protein (ESR2) utiče na njegovu ekspresiju (na nivou iRNK i proteina) i utvrditi povezanost metilacionog indeksa promotora ON sa nivoima ERβ1-iRNK i ERβ1 proteina, kao i sa kliničkim i patohistološkim parametrima. U ovoj studiji analiziran je 131 arhivski uzorak kancera dojke. Pomoću posebno dizajniranog PCR testa iz dva koraka, amplifikovan je i kvantifikovan specifični region promotora ON ESR2 gena. Za kvantifikaciju ERβ1-iRNK korišćena je metoda kvantitativnog RT-PCR u realnom vremenu. Metoda „Western Blot“ je korišćena za relativnu kvantifikaciju ERβ1 proteinske izoforme. Dobijeni podaci, metilacioni indeks promotora ON, nivoi iRNK i ERβ1 proteina, analizirani su i korelisani sa kliničkopatološkim parametrima neparametrijskim statističkim testovima. Nađeno je da je metilacioni indeks promotora ON ERβ gena značajno veći u grupi pacijentkinja sa pozitivnim, u odnosu na grupu sa negativnim statusom aksilarnih limfnih čvorova. Takođe, pronađena je značajna pozitivna korelacija metilacionog indeksa promotora ON ERβ gena sa nivoom estrogenskog receptora α. Na osnovu dobijenih rezultata pokazano je da metilacioni indeks promotora ON, ERβ gena može biti pouzdaniji marker prognoze kancera dojke nego ekspresija ERβ1-iRNK ili proteina ERβ1." ]
[ "Breast cancer is the most common invasive cancer in women. Beside genetic, epigenetic factors influence its initiation and progression. The purpose of this study was to test whether methylation of the promoter ON of the gene for ERβ protein (ESR2) influences its expression (on mRNA and protein level) and to correlate the methylation index of the ON promoter, ERβ1-mRNA and ERβ1 protein levels with clinicopathological parameters. In this study, 131 archival samples of breast cancer tissue were used. Custom designed two step PCR method, was done for amplification and relative quantification of the specific region of the ON promoter of the ESR2 gene. Measuring of ERβ1-mRNA was done by quantitative real time RT-PCR, and relative quantification of ERβ1 protein isoform was done by Western blot. Statistical analysis was performed and results for methylation index of ON promoter, mRNA and ERβ1 protein levels were correlated with clinicopathological parameters. The methylation index of ERβ-ON promoter was significantly higher in a group of patients with positive axillary lymph node status, than in a group with negative one. A significant positive correlation between methylation index of ON promoter and ERα protein levels was obtained. It can be concluded that methylation index of the ERβ-ON promoter could be more confident parameter for prediction and/or prognosis of breast cancer, than measuring of ERβ1-mRNA or ERβ1 protein levels." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173049/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Kancer dojke", "estrogenski receptor alfa", "estrogenski receptor beta", "progesteronski receptor", "metilacija", "kvantitativni PCR" ]
[ "Breast cancer", "estrogen receptor alpha", "estrogen receptor beta", "progesterone receptor", "methylation", "quantitative PCR" ]
[ "Metilovanje promotora i ekspresija estrogenskog receptora beta (ERß) u invazivnim karcinomima dojke", "Estrogen receptor beta (ERß) promoter methylation and expression in invasive breast cancers" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Мандушић, Весна; Кртолица-Жикић, Ковиљка; Стаменковић-Радак, Марина; Божовић, Aна М.; Метиловање промотора и експресија естрогенског рецептора бета (ЕРß) у инвазивним карциномима дојке; Метиловање промотора и експресија естрогенског рецептора бета (ЕРß) у инвазивним карциномима дојке;
[ "https://nardus.mpn.gov.rs/bitstream/id/2297/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2297/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2121" ]
10.2298/bg20130703bozovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2155
123456789-2155.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7848/bdef:Content/download
no
Uloga polimorfizama i ekspresije gena za hemokine CX3C ligand 1 i CXC ligand 16 i njihove receptore u nastanku i progresiji multiple skleroze u Srbiji
Roles of polymorphisms and expression of genes coding for chemokines CX3C ligand 1 and CXC ligand 16 and their receptors in the development and progression of multiple sclerosis in Serbia
[ "Živković, Maja" ]
[ "Savić-Pavićević, Dušanka", "Dinčić, Evica" ]
Stojković, Ljiljana S.
2016-01-05T11:48:24
[ "2016-01-05T11:48:24", "2020-07-03T08:11:32" ]
2013-09-20
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=1108", "https://nardus.mpn.gov.rs/handle/123456789/2155", "https://fedorabg.bg.ac.rs/fedora/get/o:7848/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024587442" ]
[ "Multipla skleroza je hroniĉna inflamatorna, autoimunska, demijelinizaciona i neurodegenerativna bolest centralnog nervnog sistema (CNS-a). Hemokini i njihovi receptori predstavljaju znaĉajne medijatore inflamacije koji uĉestvuju u patogenezi odreĊenih hroniĉnih inflamatornih i autoimunskih bolesti meĊu kojima je i multipla skleroza. Ciljni hemokini u ovoj studiji, CX3C ligand 1 (CX3CL1) i CXC ligand 16 (CXCL16), specifiĉni su po tome što postoje u dve forme - kao transmembranski adhezivni molekuli i kao solubilni hemoatraktanti koji nastaju nakon proteolitiĉkog seĉenja vanćelijskih hemokinskih domena njihovih transmembranskih formi. U toku inflamatornog odgovora, na membrani endotelnih vaskularnih ćelija eksprimirani su CX3CL1 i CXCL16, a na membrani leukocita receptori za CX3CL1 (CX3CR1) i CXCL16 (CXCR6), te ovi hemokini i njihovi receptori posreduju u prodiranju leukocita iz krvi u tkivo zahvaćeno inflamacijom, podsticanjem hemotaksije i adhezije leukocita za aktivirani endotel krvnog suda. Ova studija obuhvata genetsko-epidemiološku analizu polimorfizama zamena pojedinaĉnih nukleotida u kodirajućim regionima gena, koje rezultuju zamenama aminokiselina. To su polimorfizmi V249I i T280M u genu za CX3CR1, i I123T i A181V u genu za CXCL16. U prethodnim studijama je pokazano da ovi genski polimorfizmi menjaju funkcionalna svojstva CX3CR1 i CXCL16, kao i da su asocirani sa patogenezom odreĊenih hroniĉnih inflamatornih bolesti. Uzimajući to u obzir, ova studija je imala za cilj da po prvi put ispita asocijaciju navedenih polimorfizama u genima za CX3CR1 i CXCL16 sa nastankom i progresijom multiple skleroze. Primenom alel-specifiĉne PCR metode i PIRA PCR-RFLP metode detektovani su genotipovi polimorfizama V249I i T280M u genu za CX3CR1, kod zdravih kontrola i pacijenata sa multiplom sklerozom. UtvrĊeno je da haplotip I249T280 u genu za CX3CR1 ima znaĉajno veću uĉestalost kod pacijenata sa relapsno-remitentnom (RR) formom, u odnosu na pacijente sa sekundarno-progresivnom (SP) formom multiple skleroze, što znaĉi da ovaj haplotip ima protektivni efekat na progresiju RR u SP formu bolesti..." ]
[ "Multiple sclerosis is a chronic inflammatory, autoimmune, demyelinating and neurodegenerative disease of the central nervous system (CNS). Chemokines and their receptors are important mediators of inflammation, which are involved in pathogenesis of certain chronic inflammatory and autoimmune diseases including multiple sclerosis. Chemokines of interest in this study, CX3C ligand 1 (CX3CL1) and CXC ligand 16 (CXCL16), are specific in that they can exist either as transmembrane adhesion molecules or soluble chemoattractants being generated by proteolytic cleavage of their transmembrane forms’ extracellular domains. During the inflammatory response, CX3CL1 and CXCL16 are expressed on the surface of vascular endothelium, while the leukocytes produce membrane receptors for CX3CL1 (CX3CR1) and CXCL16 (CXCR6). Therefore, these chemokines and their receptors mediate the infiltration of leukocytes from blood into the inflamed tissue areas, by stimulation of both chemotaxis and adhesion of leukocytes to the activated endothelium of blood vessels. This study is based on genetic epidemiological analysis of single nucleotide polymorphisms, which are located in the coding regions of genes and result in amino acids’ substitutions. These are V249I and T280M substitutions in the gene coding for CX3CR1, and I123T and A181V substitutions in the gene coding for CXCL16. In previous studies these polymorphisms have been associated with the functional properties of CX3CR1 and CXCL16 as well as the pathogenesis of certain chronic inflammatory diseases. Therefore, this study aimed to investigate the association of the polymorphisms in CX3CR1 and CXCL16 genes with the development and progression of multiple sclerosis. Using the allele-specific PCR and PIRA PCR-RFLP methods, genotypes of CX3CR1 V249I and T280M polymorphisms were detected in healthy controls and patients with multiple sclerosis. Following statistical analysis showed significantly higher frequency of CX3CR1 I249T280 haplotype in patients with relapsingremitting (RR) form, compared to patients with secondary-progressive (SP) form of multiple sclerosis, so this haplotype had a protective effect on progression of RR to SP form of the disease..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41028/RS//", "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175085/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "multipla skleroza", "gen", "polimorfizam", "ekspresija", "hemokin", "CX3CL1", "CXCL16", "CX3CR1", "CXCR6" ]
[ "multiple sclerosis", "gene", "polymorphism", "expression", "chemokine", "CX3CL1", "CXCL16", "CX3CR1", "CXCR6" ]
[ "Uloga polimorfizama i ekspresije gena za hemokine CX3C ligand 1 i CXC ligand 16 i njihove receptore u nastanku i progresiji multiple skleroze u Srbiji", "Roles of polymorphisms and expression of genes coding for chemokines CX3C ligand 1 and CXC ligand 16 and their receptors in the development and progression of multiple sclerosis in Serbia" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Живковић, Маја; Динчић, Евица; Савић-Павићевић, Душанка; Стојковић, Љиљана С.;
[ "https://nardus.mpn.gov.rs/bitstream/id/2533/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2533/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2155" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2022
123456789-2022.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2271/bdef:Content/download
no
Transkripciona regulacija razvoja i hiperplazije mrkog masnog tkiva
Transcriptional regulation of brown adipose tissue hiperplasia and development
[ "Korać, Aleksandra" ]
[ "Čvoro, Aleksandra", "Korać, Bato", "Srdić, Biljana" ]
Veličković, Ksenija D.
2016-01-05T11:45:21
[ "2016-01-05T11:45:21", "2020-07-03T08:11:29" ]
2012-08-22
[ "https://nardus.mpn.gov.rs/handle/123456789/2022", "http://eteze.bg.ac.rs/application/showtheses?thesesId=26", "https://fedorabg.bg.ac.rs/fedora/get/o:2271/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024497074" ]
[ "" ]
[ "" ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173054/RS//", "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173055/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Mrko masno tkivo", "hiperplazija", "hladnoća", "transkripcioni faktori", "adipogeneza", "angiogeneza" ]
[ "Brown adipose tissue", "hyperplasia", "cold", "transcription factors", "adipogenesis", "angiogenesis" ]
[ "Transkripciona regulacija razvoja i hiperplazije mrkog masnog tkiva", "Transcriptional regulation of brown adipose tissue hiperplasia and development" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Кораћ, Aлександра; Срдић, Биљана; Кораћ, Бато; Чворо, Aлександра; Величковић, Ксенија Д.; Транскрипциона регулација развоја и хиперплазије мрког масног ткива; Транскрипциона регулација развоја и хиперплазије мрког масног ткива;
[ "https://nardus.mpn.gov.rs/bitstream/id/2521/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2521/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2022" ]
10.2298/bg20120822velickovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2128
123456789-2128.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7417/bdef:Content/download
no
Analiza interakcija laktobacila sa crevnom mukozom pacova
Analysis of interactions of lactobacilli with rat gut mucosa
[ "Jovčić, Branko" ]
[ "Begović, Jelena", "Strahinić, Ivana", "Milenković, Marina", "Kojić, Milan" ]
Lukić, Jovanka M.
2016-01-05T11:47:56
[ "2016-01-05T11:47:56", "2020-07-03T08:10:04" ]
2013-12-03
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=904", "https://nardus.mpn.gov.rs/handle/123456789/2128", "https://fedorabg.bg.ac.rs/fedora/get/o:7417/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024629682" ]
[ "Probiotici predstavljaju žive mikroorganizme koji, nakon unošenja u gastrointestinalni (GI) trakt, ostvaruju pozitivne efekte na zdravlje domaćina. Reakcija domaćina na unos probiotika u velikoj meri zavisi od sposobnosti bliske interakcije bakterija sa epitelnim ćelijama GI mukoze. S druge strane, s obzirom na nepoznatu antigenu prirodu unetih bakterija, kod imunokompromitovanog domaćina je prisutan rizik od imunske reakcije crevnog tkiva što može da dovede do narušavanja integriteta mukozne barijere i hronične inflamacije u GI traktu. Cilj istraživanja bio je ispitivanje efekta soja Lactobacillus fermentum BGHI14, alohtonog za GI trakt pacova, nakon peroralnog unosa u zdrave pacove i u pacove sa kolitisom indukovanim TNBS-om (trinitrobenzensulfonat). Metodološki, u eksperimentima su praćeni: telesna masa pacova i ekspresija iRNK za parametre inflamacije (IL-1β, TNFα, IL-17F), pokazatelje ćelijskog stresa (HSP70) i parametre uključene u održavanje integriteta mukoze (TJP1); zatim su rađene histološke i biohemijske analize i analiza sastava crevne mikroflore. Rezultati istraživanja su pokazali imunostimulišuće delovanje soja BGHI14 na nivou tkiva kolona nakon unosa u GI trakt zdravih pacova u prvih 16 dana peroralnog tretmana pacova. Iako se, histološki, sa produžetkom tretmana pacova sojem BGHI14 tokom narednih 12 dana, imunska reakcija u tkivu kolona povukla, nivoi iRNK za proinflamatorne IL-1β i TNFα citokine ostali su povišeni što ukazuje na rizik od nekontrolisane inflamacije u slučaju naknadnog oštećenja epitelne barijere kolona. U istraživanju je pokazano da je nakon imunostimulacije tkiva kolona sojem BGHI14, u slučaju indukcije kolitisa, ali uz nastavak tretmana sojem BGHI14 došlo do indukcije transkripcije iRNK za HSP70 protein, kako u ranoj (48 h) tako i u kasnoj (7 dana) akutnoj fazi kolitisa. Povećanje transkripcije Hsp70 gena, sudeći po histološkim i inflamatornim pokazateljima, kao i promenama telesnih masa pacova tokom eksperimenta, nije bilo praćeno pozitivnim delovanjem soja. S druge strane, prestanak tretmana sojem BGHI14 nakon indukcije kolitisa doveo je do manje izraženog pada telesnih masa životinja u poređenju sa kontrolnim pacovima sa kolitisom, iako bez pratećeg smanjenja inflamatorne reakcije u tkivu kolona, bar u kasnoj akutnoj fazi bolesti (sedam dana od indukcije)..." ]
[ "Probiotics are life microorganisms that, after administration in gastrointestinal (GI) tract, excert positive effects on host’s health. Host reaction to probiotic administration largely depands on ability of bacteria to closely interact with epithelial cells of GI mucosa. On the other hand, considering the unknown antigenic nature of administered bacteria, in immune-compromised host there is a risk of immune reaction of gut tissue which could lead to disturbance of mucosal barrier integrity and chronic inflammation in GI tract. The aim of the study was to examine the effects of the strain Lactobacillus fermentum BGHI14, which is alochtonous to GI tract of rats, after peroral administration in healthy rats and in rats with TNBS (trinitrobenzenesulfonate)-induced colitis. Methodologically, following parameters were examined in experiments: body masses of rats and expression of mRNA of inflammatory cytokines (IL-1β, TNFα, IL-17F), as well as markers of cellular stress (HSP70) and barrier integrity maintenanace (TJP1); next histological and biochemical analyses and microflora profiling were performed. Results of the study indicated immune-stimulating effects of BGHI14 in colon tissue after administration in GI tract of healthy rats in first 16 days of peroral treatment of rats. Although, histologically, with prolongation of BGHI14 treatment of rats for next 12 days, immune reaction in colon tissue had retreated, mRNA levels of proinflammatory IL-1β and TNFα cytokines remained elevated which points to the risk of uncontrolled inflammation in the case of subsequent colon epithelial barrier damage. In research it was shown that after immunostimulation of colon tissue with BGHI14, in the case of colitis induction, but with sequel of treatment with bacteria, transcription of Hsp70 gene was induced, in early (48 h) as well as late (7 days) acute phase of colitis. The increase of Hsp70 gene transcription, according to histological and inflammatory markers, as well as body mass changes during the experiment, was not followed by positive action of the strain. On the other hand, the cessation of treatment with BGHI14 after colitis induction had led to less pronounced body mass decrease compared to control colitic rats, but without concomitant reduction in inflammatory scores in colon tissue, at least in late acute phase of disease (seven days from induction)..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "mikroflora", "laktobacili", "mukoza", "imuni odgovor", "zapaljenje", "adhezija", "mucini", "agregacija" ]
[ "microflora", "lactobacilli", "mucosa", "immune response", "inflammation", "adhesion", "mucins", "aggregation" ]
[ "Analiza interakcija laktobacila sa crevnom mukozom pacova", "Analysis of interactions of lactobacilli with rat gut mucosa" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Јовчић, Бранко; Миленковић, Марина; Страхинић, Ивана; Беговић, Јелена; Којић, Милан; Лукић, Јованка М.; Aнализа интеракција лактобацила са цревном мукозом пацова; Aнализа интеракција лактобацила са цревном мукозом пацова;
[ "http://nardus.mpn.gov.rs/bitstream/id/2227/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2227/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2128" ]
10.2298/bg20131203lukic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2110
123456789-2110.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7117/bdef:Content/download
no
Biološka aktivnost etarskih ulja i ekstrakata odabranih vrsta iz familije Apiaceae
Biological activities of essential oils and extracts of selected Apiaceae species
[ "Marin, Petar" ]
[ "Džamić, Ana", "Soković, Marina", "Ranđelović, Vladimir" ]
Matejić, Jelena S.
2016-01-05T11:47:38
[ "2016-01-05T11:47:38", "2020-07-03T08:09:47" ]
2013-05-18
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=793", "https://nardus.mpn.gov.rs/handle/123456789/2110", "https://fedorabg.bg.ac.rs/fedora/get/o:7117/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44652559" ]
[ "U ovom radu analizirana je biološka aktivnost etarskih ulja i ekstrakata sledećih vrsta familije Apiaceae: Eryngium serbicum Pančić, Seseli pallasii Besser, Seseli libanotis (L.) Koch subsp. libanotis, Seseli libanotis (L.) Koch subsp. intermedium (Rupr.) P. W. Ball, Peucedanum officinale L., Peucedanum longifolium W. et K., Peucedanum aegopodioides (Boiss.) Vand., Peucedanum alsaticum L., Pastinaca sativa L., Heracleum sphondylium L., Tordylium maximum L., Cachrys cristata DC. i Opopanax hispidus (Friv.) Griseb. Biljni materijal je ekstrahovan metanolom, acetonom i etil-acetatom, dok su vodeni ekstrakti liofilizirani. Etarska ulja navedenih vrsta i odabrani ekstrakti su testirani sa aspekta antimikrobne i antioksidativne aktivnosti. Kao pozitivne kontrole korišćeni su komercijalni antibiotici i antimikotici, a u testovima za utvrđivanje antioksidativne aktivnosti BHA i vitamin C. Antimikrobna aktivnost etarskih ulja i ekstrakata testirana je na: Gram-negativne bacterije (Escherichia coli, Pseudomons aeruginosa, Salmonella typhimurium, Salmonella enteritidis i Enterobacter cloacae) i Gram-pozitivne bacterije (Listeria monocytogenes, Bacillus cereus, Micrococcus flavus i Staphylococcus aureus), kao i na mikromicete (Aspergillus niger, A. ochraceus, A. versicolor, A. fumigatus, Penicillium funiculosum, P. ochrochloron, Trichoderma viride i Candida albicans). Kompozicija etarskih ulja je analizirana korišćenjem GC i GC/MS metoda. Metoda mikrodilucije na mikrotitracionim pločama je korišćena za testiranje antimikrobne aktivnosti. Određivane su minimalne inhibitorne i minimalne baktericidne/fungicidne koncentracije (MIC i MBC/MFC). DPPH i ABTS analize, kao i ukupan sadržaj fenola i flavonoida, su korišćene za određivanje antioksidativne aktivnosti. Etarsko ulje Eryngium serbicum je bilo najefikasniji antimikrobni agens, a slede ga ulja vrste roda Peucedanum, dok je etarsko ulje Seseli pallasii imalo najnižu antimikrobnu aktivnost. Acetonski i etil-acetatni ekstrakti su imali bolji antimikrobni potencijal od metanolnih i vodenih ekstrakata. Salmonella typhimurium je najosetljivijа bakterija, dok je Listeria monocytogenes, pokazala dobru otpornost na ispitivana ulja i ekstrakte. Rezultati testiranih gljiva pokazuju da je Aspergillus ochraceus bila najosetljivija, dok je Candida albicans bila najrezistentnija. Vodeni ekstrakti su bili najefikasniji u neutralizaciji DPPH radikala, dok su acetonski ekstrakti bili najefikasniji kod ABTS testa. Ekstrakti Peucedanum officinale su pokazali najbolju antioksidativnu aktivnost." ]
[ "In this work the biological activity of essential oils and extracts from following Apiaceae species was analyzed: Eryngium serbicum Pančić, Seseli pallasii Besser, Seseli libanotis (L.) Koch subsp. libanotis, Seseli libanotis (L.) Koch subsp. intermedium (Rupr.) P. W. Ball, Peucedanum officinale L., Peucedanum longifolium W. et K., Peucedanum aegopodioides (Boiss.) Vand., Peucedanum alsaticum L., Pastinaca sativa L., Heracleum sphondylium L., Tordylium maximum L., Cachrys cristata DC., Opopanax hispidus (Friv.) Griseb. Herbal samples, were extracted with methanol, acetone and ethil-acetate, while aqueous extracts were dried by freeze-dryer. Essential oils of above species, and selected extracts were evaluated for their antimicrobial and antioxidant activities. As a positive control commercial antibiotics and fungicides were used, while BHA and Vitamin C were used in antioxidant test. The antimicrobial activity of essential oils and extracts was investigated against: Gram (-) bacteria (Escherichia coli, Pseudomons aeruginosa, Salmonella typhimurium, Salmonella enteritidis, Enterobacter cloacae) and Gram (+) bacteria (Listeria monocytogenes, Bacillus cereus, Micrococcus flavus, Staphylococcus aureus), and micromycetes (Aspergillus niger, A. ochraceus, A. versicolor, A. fumigatus, Penicillium funiculosum, P. ochrochloron, Trichoderma viride, Candida albicans). The volatile constituents were analyzed using GC and GC/MS procedures. Microdilution method on microtitration plates was used for antimicrobial assay. Minimum inhibitory and minimum antibacterial/antifungal concentrations (MIC and MBC/MFC) were determined. DPPH and ABTS assay and total phenol and flavonoid content were used for antioxidant activity determination. Essential oil of Eryngium serbicum was the most effective antimicrobial agents, followed by Peucedanum species, while Seseli pallasii essential oil showed the lowest antimicrobial activity. Acetone and ethil-acetate extracts showed better antimicrobial potential than methanol and aquous extracts. Salmonella typhimurium were the most susceptible bacteria, while Listeria monocytogenes, showed good resistance to all of oils and extracts investigated. The results show that the tested micromycetes Aspergillus ochraceus was the most sensitive, while Candida albicans was the most resistant. Aquous extracts were the most effective DPPH radical scavangers, while acetone extracts were the most effective at ABTS test. Exstracts of Peucedanum officinale was with highest antioxidant activity." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173029/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Београду
[ "Apiaceae", "etarska ulja", "ekstrakti", "GC/MS", "antimikrobna aktivnost", "antioksidansi" ]
[ "Apiaceae", "essential oils", "extracts", "GC/MS", "antimicrobial activity", "antioxidants" ]
[ "Biološka aktivnost etarskih ulja i ekstrakata odabranih vrsta iz familije Apiaceae", "Biological activities of essential oils and extracts of selected Apiaceae species" ]
[ "" ]
doctoralThesis
[ "BY-NC" ]
Марин, Петар; Ранђеловић, Владимир; Соковић, Марина; Джамић, Aна; Матејић, Јелена С.; Биолошка активност етарских уља и екстраката одабраних врста из фамилије Aпиацеае; Биолошка активност етарских уља и екстраката одабраних врста из фамилије Aпиацеае;
[ "https://nardus.mpn.gov.rs/bitstream/id/2168/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2168/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2110" ]
10.2298/bg20130518matejic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2097
123456789-2097.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:6695/bdef:Content/download
no
Strukturna i funkcionalna analiza 5' regulatornog regiona gena SMAD4 u karcinomu pankreasa čoveka
Structural and functional analysis of smad4 gene 5' regulatory region in human pancreatic cancer
[ "Radojković, Dragica" ]
[ "Radović, Svetlana" ]
Nikolić, Aleksandra
2016-01-05T11:47:18
[ "2016-01-05T11:47:18", "2020-07-03T08:09:36" ]
2010-04-16
[ "https://nardus.mpn.gov.rs/handle/123456789/2097", "http://eteze.bg.ac.rs/application/showtheses?thesesId=551", "https://fedorabg.bg.ac.rs/fedora/get/o:6695/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=36854287" ]
[ "Karcinom pankreasa spada u najinvazivnije i najprogresivnije humane maligne bolesti. Genetske promene karakteristične za ovu bolest su aktivacija onkogena KRAS i inaktivacija tumor supresor gena p16, p53 i SMAD4. Novija istraživanja ukazuju na povezanost aktivacije onkogena KRAS i inaktivacije tumor supresor gena SMAD4 u pankreasnoj karcinogenezi. Struktura promotora gena SMAD4 nedovoljno je proučena i malo se zna o mehanizmima regulacije transkripcije ovog gena. Ova studija je imala za cilj da istraži genetske i epigenetske promene u 5’ regulatornom regionu gena SMAD4 kao potencijalne mehanizme njegove inaktivacije u karcinomu pankreasa, kao i njihovu udruženost sa prisustvom mutacije u kodonu 12 gena KRAS u malignom tkivu. Strukturna analiza promotora gena SMAD4 je pokazala da su dva mononukleotidna ponovka, -462T(15) and -4T(12), polimorfna u karcinomu pankreasa i kolorektalnom kanceru, dok je funkcionalna analiza pokazala da broj timina u elementu -4T(12) može biti od značaja za regulaciju transkripcije. Haplotip 14/10 je bio najčešći haplotip u tkivu karcinoma pankreasa, prisutan u 88% slučajeva. Haplotipovi 10/12 i 9/12 su otkriveni u po 4% slučajeva u tkivu kolorektalnog kancera. U najvećem broju tkiva karcinoma pankreasa (98%) bila je prisutna ili mutacija u kodonu 12 gena KRAS ili haplotip 14/10 u promotoru gena SMAD4. Rezultati ovog istraživanja ukazuju da haplotipovi 14/10, 10/12 i 9/12 u promotoru gena SMAD4 predstavljaju genetičke markere koji mogu biti povezani sa specifičnom malignom bolešću, a njihova analiza potencijalno iskorišćena za dijagnostikovanje i praćenje bolesti, pojedinačno ili u kombinaciji sa analizom mutacije u kodonu 12 gena KRAS." ]
[ "Pancreatic carcinoma is one of the most invasive and progressive human malignant neoplasms. This malignancy is characterized by activation of KRAS oncogene and inactivation of p16, p53 and SMAD4 tumor supressor genes. Recent results show association between KRAS activation and SMAD4 inactivation in pancreatic carcinogenesis. The structure of the SMAD4 gene promoter has not been clearly defined and little is known about the transcription regulatory mechanisms of this gene. This study was aimed at analyzing genetic and epigenetic changes in the 5’ regulatory region as potential mechanisms of SMAD4 gene inactivation in pancreatic carcinoma and their coexistance with KRAS codon 12 mutation in malignant tissues. Structural analysis of SMAD4 gene promoter has shown that two mononucleotide repeat elements, -462T(15) and -4T(12), are polymorphic in pancreatic carcinoma and colorectal cancer tissues, while functional analysis indicated that -4T(12) element may be important for transcriptional regulation. The haplotype 14/10 was the most common haplotype in pancreatic carcinoma tissue, present in 88% of cases. Haplotypes 10/12 and 9/12 were detected in 4% of colorectal cancer tissues each. In majority of pancreatic carcinoma cases (98%) either KRAS codon 12 mutation or SMAD4 gene promoter haplotype 14/10 was present. These findings suggest that haplotypes 14/10, 10/12 and 9/12 in the SMAD4 gene promoter represent genetic markers that might be associated with specific malignancy and potentially exploited for diagnostics and monitoring of disease, alone or in combination with KRAS codon 12 mutation testing." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "karcinom pankreasa", "SMAD4", "KRAS" ]
[ "pancreatic cancer", "SMAD4", "KRAS" ]
[ "Strukturna i funkcionalna analiza 5' regulatornog regiona gena SMAD4 u karcinomu pankreasa čoveka", "Structural and functional analysis of smad4 gene 5' regulatory region in human pancreatic cancer" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Радојковић, Драгица; Радовић, Светлана; Николић, Aлександра; Структурна и функционална анализа 5' регулаторног региона гена СМAД4 у карциному панкреаса човека; Структурна и функционална анализа 5' регулаторног региона гена СМAД4 у карциному панкреаса човека;
[ "https://nardus.mpn.gov.rs/bitstream/id/2121/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2121/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2097" ]
10.2298/bg20100416nikolic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2197
123456789-2197.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:8147/bdef:Content/download
no
Granična stanja armiranobetonskih montažnih dvopojasnih nosača od betona visokih čvrstoća
Limit states of reinforced high strength concrete prefabricated two-chord structures
[ "Aćić, Mirko" ]
[ "Đurđević, Mihajlo" ]
Furtula, Boško B.
2016-01-05T11:52:03
[ "2016-01-05T11:52:03", "2020-07-03T08:28:24" ]
2013-10-22
[ "https://nardus.mpn.gov.rs/handle/123456789/2197", "http://eteze.bg.ac.rs/application/showtheses?thesesId=1223", "https://fedorabg.bg.ac.rs/fedora/get/o:8147/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=513345426" ]
[ "U ovoj disertaciji izvršena je teorijska i eksperimentalna analiza linijskog montažnog armiranobetonskog nosača sa čeličnim zetegama. Da bi se potvrdile teorijske postavke proračuna, unapredila tehnologija grañenja i omogućilo praćenje ponašanja ovih sistema u svim naponsko-deformacijskim stanjima, izvršena su eksperimantalna istraživanja sa betonom visoke čvrstoće na pritisak. Eksperimentalno su ispitivana i analizirana dva nosača (modela) “A“ i “B“, raspona 20.00 m u prirodnoj veličini koji su izrañeni od betona visokih čvrstoća od 75 MPa i 78 MPa, respektivno. U uvodnom delu je navedeno da ovakvi nosači u velikoj meri zadovoljavaju zahteve savremene tehnologije grañenja u koje spadaju: znatna redukcija sopstvene težine, brza i laka montaža i izbegavanje potreba za betoniranjem na licu mesta. Pored toga, ispunjeni su svi zahtevi u pogledu stabilnosti, funkcionalnosti i trajnosti ovakvih nosača. Kratkotrajno statičko opterećenje, nanošeno je u sedam faza, a osma faza je izvršena tako što je nosač izložen udaru u sleme pod punim opterećenjem sedme faze slobodnim padom tega od 5.00 kN sa visine 6.00m. U poglavlju 2 je prikazan pregled najznčajnijih svojstava betona visoke čvrstoće, metode projektovanja betonske mešavine, pregled radnih dijagrama betona u pojedinim zemljama i njihovo poreñenje sa odgovarajućim analizama. U poglavlju 3 dat je pregled najznačajnijih objekata od betona visoke čvrstoće koji su realizovani u svetu sa osnovnim karakteristikama i recepture za beton na nekim objektima. Pregled primene dvopojasnih sistema, uglavnom u našoj zemlji, prikazan je u poglavlju 4. Ovi konstrukcijski sistemi su nastali i unapreñeni na Grañevinskom fakultetu u Beogradu, što je rezultiralo njihovom velikom primenom u našoj zemlji. Dat je pregled realizovanih objekata sa karakterističnim detaljima autora sa ovog fakulteta i nekih detalja koje je autor disertacije realizovao, sam ili u saradnji sa njima. Peto poglavlje daje opis eksperimentalnih istraživanja: pripremu, izradu probnih mešavina, pravljenje modela u prirodnoj veličini i nanošenje opterećenja sa merenjima opštih i lokalnih deformacija nakon svake faze opterećenja. U šestom poglavlju daje se teorijska analiza ovih dvopojasnih sistema. Izložena je analiza stanja napona i deformacija, zatim analiza graničnih stanja ovih sistema u obliku integro-diferencijalnih jednačina. Ukratko je prikazan jedan metod dvojice kiniskeh autora, koji predstavlja uprošćenje metoda koji su predložili naši autori Ivković, Perišić, Aćić i Pakvor. Izvršena je teorijska analiza ponašanja nosača usled dejstva udara i razvijen je poseban računarski program na bazi konačnih elemenata i uporeñeni mereni i teorijski rezultati koji se dobro slažu. U sedmom poglavlju prikazuje se metodologija odreñivanja faktora graničnog opterećenja koje nosač dovodi u stanje granične ravnoteže za aplicirano i jednako podeljeno opterećenje na gornjem pojasu. Primenjeni postupak odreñivanja faktora graničnog opterećenja i mehanizma loma je zasnovan na dualitetu statičkih i kinematičkih veličina, i primenom linearnog programiranja odreñene karakteristične statičke i kinematičke veličine i formulisani zaključci. Za ova opterećenja je izvršena analiza ponašanja sistema prema teoriji I i II reda za elastično ponašanje nosača. U osmom poglavlju je izvršena završna uporedna analiza, tj. poreñenje teorijskih i eksprimentalnih rezultata i konstatovano njihovo dobro slaganje..." ]
[ "In this PhD thesis is carried out theoretical and experimental analysis of linear, prefabricated reinforced concrete structures with a lower steel chord. To confirm the theoretical calculations, improve construction technology and to enable monitoring of the behavior of these systems in all stress-strain states was carried out an experimental research with concrete of high compressive strength. Two girders (models) “A” and “B” are investigated experimentally in lifesize, made of high strengths concrete with a compressive strength 75 MPa and 78 MPa. In the introductory chapter states that these structures largely meet the requirements of modern construction technology which include: significant reduction of its own weight, quick and easy assemblage, avoiding the need for concreting on site, and in addition met all the requirements in terms of stability, functionality and durability of these structural systems. The short-term static load was applied in seven stages, and in the eights stage the ridge of the loaded structure was exposed to the impact of the weight free fall 5.00 kN from a height 6.00 m. In Chapter 2 is given an overview of the most important features of high-strength concrete, methods of concrete admixture design, review of operating diagrams for concrete in certain countries and their comparison with the corresponding analysis. In Chapter 3 is given an overview of the most important buildings constructed of high strength concrete that have been realized in the world with the basic characteristics and admixtures of concrete on some of these buildings. Through Chapter 4 provides an overview of application of two-chord structural systems, mainly in our country. These systems are created and developed in Faculty of Civil Engineering, University of Belgrade, which led to their wide application in our country. The review of the executed projects and characteristic details designed by authors from this faculty and some of the details that the author has realized, either alone or in collaboration with them, is presented. The fifth chapter mostly describes experimental research, preparation, making of test mixtures, creating a life-size models, applying loads with measurements of general and local deformation after each load stage. The sixth chapter gives a theoretical analysis of the two-chord structures. Provides a stress and strain analysis, and then the limit state analysis of the system in the form of integrodifferential equations. One method, given by two Chinese authors, that represents simplification of the method for analysis of these systems, proposed earlier by Ivkovic, Perišić, Aćić and Pakvor, is shortly explained. The seventh chapter presents a methodology for determining the factor of limit load that leads the structural system into a state of limit equilibrium for the applied load and equally distributed load all along upper chord. Procedure for determining the factor of limit load and mechanism of collapse is based on the duality of characteristic static and kinematic quantities. Appling Linear programming these quantities are determined successfully and corresponding conclusion are formulated. For all mentioned loadings, an analysis for elastic behaviour of investigated structures according to the theory of the first and second order is carried out. A comparative analysis, i.e. comparison of theoretical and experimental results, is performed in Chapter 8, and good agreement is found between these results..." ]
application/pdf
sr
Универзитет у Београду, Грађевински факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "beton visoke čvrstoće", "dvopojasni konstruktivni sistemi", "faktor opterećenja", "granična ravnoteža" ]
[ "high strength concrete", "two-chord structures", "load factor", "limit equilibrium" ]
[ "Granična stanja armiranobetonskih montažnih dvopojasnih nosača od betona visokih čvrstoća", "Limit states of reinforced high strength concrete prefabricated two-chord structures" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Aћић, Мирко; Ђурђевић, Михајло; Фуртула, Бошко Б.; Гранична стања армиранобетонских монтажних двопојасних носача од бетона високих чврстоћа; Гранична стања армиранобетонских монтажних двопојасних носача од бетона високих чврстоћа;
[ "http://nardus.mpn.gov.rs/bitstream/id/3981/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/3981/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2197" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2146
123456789-2146.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7874/bdef:Content/download
no
Genetičko-epidemiološka analiza i analiza ekspresije gena renin-angiotenzin sistema (RAS) u karotidnoj aterosklerozi kod čoveka
Genetic-epidemiological analysis and analysis of gene expression of the renin-angiotensin system (RAS) in carotid atherosclerosis in humans
[ "Stanković, Aleksandra" ]
[ "Brajušković, Goran", "Đurić-Delić, Tamara" ]
Kolaković, Ana P.
2016-01-05T11:48:14
[ "2016-01-05T11:48:14", "2020-07-03T08:11:30" ]
2013-12-27
[ "https://nardus.mpn.gov.rs/handle/123456789/2146", "http://eteze.bg.ac.rs/application/showtheses?thesesId=1119", "https://fedorabg.bg.ac.rs/fedora/get/o:7874/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024653746" ]
[ "Karotidna ateroskleroza (KA) je hronična bolest koja započinje aktivacijom i nakupljanjem inflamatornih ćelija koje se pune lipidima u zidu arterijskog krvnog suda. Aterosklerotski plak sadrži lipidno jezgro, fibroznu kapu, akumulira glatke mišićne ćelije (GMĆ) i proteine ekstraćelijskog matriksa (EĆM). Renin-angiotensin system (RAS) ima ključnu ulogu u aktivaciji inflamacije u zidu krvnog suda. Glavni molekuli RAS su: angiotenzin-konvertujući enzim (ACE), angiotenzin-konvertujući enzim-homolog (ACE2), angiotenzin II receptori tipa 1 (ATR1) i tipa 2 (ATR2), ACE2 homolog (TMEM 27) i regulatorna RNK (miR-155). Angiotenzin II (Ang II) je glavni efektorni molekul RAS koji se sintetiše aktivnošću ACE, a razgrađuje aktivnošću ACE2. Ang II ostvaruje svoje efekte vezujuću se za ATR1 i ATR2. Efekti Ang II imaju važnu ulogu u regulaciji vaskularne homeostaze i to su: vazokonstrikcija, migracija, proliferacija i hipertrofija GMĆ, povećana sinteza EĆM i povećana produkcija matriks-metaloproteinaza (MMPs). Ekspresija ATR1 regulisana je sa miR-155. Balans između aktivacije i represije RAS može biti odlučujući u patološkom remodelovanju zida krvnog suda i patogenezi KA. Zato je važno ispitati funkcionalnu aktivaciju RAS sistema na lokalnom (tkivnom) nivou u karotidama i to na nivou ekspresije gena koji kodiraju za komponente RAS, enzime i receptore. Ekspresija gena je regulisana preko prisustva/odsustva različitih alelnih varijanti funkcionalnih polimorfizama u genima za RAS. Genetičko-epidemiološka studija gena RAS je urađena po pacijenti - kontrole dizajnu, na tri gena i tri polimorfizma. Ova studija obuhvatila je 750 ispitanika oba pola iz populacije Srbije, 505 pacijenata i 246 kontrola iste etničke pripadnosti. Urađena je studija asocijacije polimorfizma I/D u genu za ACE, polimorfizma A1166C u genu za ATR1 i polimorfizma A/G -1332 u genu za ATR2 sa nastankom KA, kliničkim parametrima KA, fenotipom plaka (stabilni (SAP) i nestabilni (NAP)), kliničkim događajima (prolazni ishemijski događaj (TIA) i cerebrovaskularni insult (CVI)) u Srbiji. Isti polimorfizmi su asocirani i sa ekspresijom gena u tkivu plaku KA. Analiza ekspresije gena RAS na nivou iRNK je urađena po istom dizajnu, na šest gena..." ]
[ "The carotid atherosclerosis (CA) is chronic disease, which begins with activation inflammatory cells and accumulation lipid in these cells within blood vessel wall. Atherosclerotic plaque containing a lipid core, fibrous cap, accumulates smooth muscle cells (GMC) and proteins of the extracellular matrix (ECM). The renin-angiotensin system (RAS) has a key role in activation of inflammation within blood vessel wall. The main components of the system are: angiotensin I-converting enzyme (ACE), angiotensin converting enzyme homolog (ACE2), angiotensin II receptor type 1 (ATR1), angiotensin II receptor type 2 (ATR2), ACE2 homolog (TMEM27) and regulatory RNA (miR-155). Angiotensin II (Ang II) is the main effector molecule of the RAS, which is synthesized by the activity of ACE and is cleaved by ACE2. Ang II achieves its effects by binding to ATR1 and ATR2. These effects has an important role in the regulation of vascular homeostasis and include the following: vasoconstriction, vascular smooth muscle cells (SMC) migration, proliferation and hypertrophy, increased synthesis of extracellular matrix (ECM) and enhanced production of matrix metalloproteinases (MMPs). The expression of ATR1 is regulated by the miR-155. The balance between activation and repression of RAS can be decisive in pathological remodeling of the vessel wall and the pathogenesis CA. It is therefore important to examine the functional activation of RAS at the local (tissue) level in carotid vessel wall at level of expression genes encoding for components of the RAS, enzymes and receptors. The gene expression of components of RAS is regulated through the presence/absence of different allelic variants of functional polymorphisms in these genes. The genetic epidemiological study for RAS genes was performed by case-control design and consisted of three genes and three polymorphisms within these genes. This study included 750 subjects of both sexes from the Serbian population, 505 patients and 246 controls of the same ethnic background. It is done genetic association study the ACE I/D, ATR1 A1166C and ATR2 A/G -1332 polymorphisms with occurrence of CA, clinical parameters of CA, (phenotypes of plaques (stable (SP) and unstable (USP)), clinical events of disease (transient ischemic attack (TIA) and cerebrovascular insult (CVI)) in Serbia..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175085/RS//", "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41028/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "karotidna ateroskleroza (KA)", "renin-angiotenzin sistem (RAS)", "ACE", "ACE2", "ATR1", "ATR2", "TMEM27", "miR-155", "polimorfizam u genu", "ekspresija gena" ]
[ "carotid atherosclerosis (CA)", "renin-angiotensin system (RAS)", "ACE", "ACE2", "ATR1", "ATR2", "TMEM27", "miR-155", "gene polymorphism", "mRNA exspression" ]
[ "Genetičko-epidemiološka analiza i analiza ekspresije gena renin-angiotenzin sistema (RAS) u karotidnoj aterosklerozi kod čoveka", "Genetic-epidemiological analysis and analysis of gene expression of the renin-angiotensin system (RAS) in carotid atherosclerosis in humans" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Станковић, Aлександра; Брајушковић, Горан; Ђурић-Делић, Тамара; Колаковић, Aна П.; Генетичко-епидемиолошка анализа и анализа експресије гена ренин-ангиотензин система (РAС) у каротидној атеросклерози код човека; Генетичко-епидемиолошка анализа и анализа експресије гена ренин-ангиотензин система (РAС) у каротидној атеросклерози код човека;
[ "https://nardus.mpn.gov.rs/bitstream/id/2529/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2529/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2146" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2100
123456789-2100.pdf
no
no
https://fedorabg.bg.ac.rs/fedora/get/o:8229/bdef:Content/download
no
Bioakumulacioni potencijal odabranih biljnih vrsta iz porodice Brassicaceae sa serpentinskih staništa u Srbiji
Bioaccumulation potential of selected plant species of the family Brassicaceae from serpentine habitats in Serbia
[ "Tomović, Gordana" ]
[ "Niketić, Marjan", "Šinžar-Sekulić, Jasmina", "Mihailović, Nevena", "Čučulović, Ana" ]
Tumi, Ahmed Farag
2016-01-05T11:47:21
[ "2016-01-05T11:47:21", "2020-07-03T08:09:04" ]
2013-07-05
[ "https://nardus.mpn.gov.rs/handle/123456789/2100", "http://eteze.bg.ac.rs/application/showtheses?thesesId=1260", "https://fedorabg.bg.ac.rs/fedora/get/o:8229/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44877583" ]
[ "Ultramafiti (serpentiniti) predstavljaju grupu magmatskih ili metamorfnih stena, koje se karakterišu visokim koncentracijama Mg, Fe, Ni, Cr i Co, kao i niskim koncentracijama Ca, P i K sadrže manje od 45% silicijuma (SiO2). Flora i vegetacija koje naseljavaju serpentinitske supstrate obično su značajno oskudnije i siromašnije u odnosu na okolna staništa. Mnoge biljne vrste nisu sposobne da rastu na serpentinitski staništima, zbog njihovog ekstremno niskog sadržaja esencijalnih elemenata (nitrijenata), kao i nepovoljnog odnosa Ca/Mg u zemljištu. Na osnovu sposobnosti usvajanja teških metala, biljke koje rastu na ultramafitskim zemljištima mogu se podeliti u dve grupe: tzv. „normalne“ i metal hiperakumulatorske vrste. Dok je većina serpentinitskih biljaka sposobna da raste na ovakvim zemljištima, bez usvajanja velikih koncentracija teških metala, hiperakumulatorske vrste mogu akumulirati i do 1000 mg kg-1 Ni u suvoj masi svojih nadzemnih delova (najčešće u listovima). Do danas je identifikovano oko 360 vrsta koje su hiperakumulatori nikla, od kojih najveći broj pripada porodici Brassicaceae. Daleko najveći broj hiperakumulatora zabeležen je u okviru roda Alyssum L. Osim vrsta iz ovog roda, hiperakumulatorske vrste mogu pripadati i sledećim vrstama i/ili rodovima koje naseljavaju mediteranske delove Evrope i Male Azije: Leptoplax emarginata (Boiss.) O.E. Schulz, nekoliko vrsta iz roda Bornmuellera Hausskn., dve vrste iz roda Pseudosempervivum (Boiss.) Grossh. (Cochlearia L.), jedna vrsta iz roda Aethionema, kao i značajan broj vrsta iz roda Thlaspi L. Na području Srbije je do danas utvrđeno da jedino vrsta Alyssum murale sa planine Goč ima sposobnost hiperakumulacije nikla, dok za vrste iz nekih drugih rodova kao što su Isatis, Cardamine, Rorippa, Erysimum ne postoje informacije o hiperakumulativnim potencijalima. Prema tome, bilo je neophodno sakupiti više informacija o akumulativnim kapacitetima biljaka iz porodice Brassicaceae sa serpentinitskih staništa u Srbiji, ali i proceniti njihov potencijal za fitoremedijaciju, pa su na osnovu ovih činjenica definisani ciljevi ove disertacije: 1) utvrđivanje osnovnih karakteristika staništa ispitivanih taksona, uključujući podatke o tipu vegetacije i/ili zajednice, nadmorskoj visini, nagibu terena, geološkoj podlozi i klimi; 2) utvđivanje osnovnih fizičkih (tekstura, tj. mehanički sastav) i hemijskih (pH u H2O, pH u 1 N KCl, procenat organske materije, koncentracija P2O5 i K2O) svojstava serpentinitskih zemljišta na istraživanim lokalitetima; 3) utvrđivanje koncentracije makroelemenata (Ca, Mg, Fe) i teških metala (Ni, Mn, Zn, Cu, Cr, Pb, Co, Cd) u zemljištima koja se razvijaju iznad serpentinitske podloge na više lokaliteta u Srbiji; 4) ispitivanje koncentracije makroelemenata i teških metala u podzemnim i nadzemnim delovima biljaka iz porodice Brassicaceae koje naseljavaju serpentinitska staništa u Srbiji; 5) na osnovu dobijenih rezultata, proceniti kapacitet pojedinih biljnih vrsta iz porodice Brassicaceae za toleranciju ili bioakumulaciju određenih mikroelemenata (pre svega teških metala); 6) otkriti nove nikl i/ili cink akumulatorske ili hiperakumulatorske vrste iz porodice Brassicaceae..." ]
[ "Ultramafics ('ultrabasic' or 'serpentine') represent magmatic or metamorphic rocks which are characterized by high concentrations of Mg, Fe, Ni, Cr and Co and low concentrations of Ca, P, and K and contain less than 45% silica (SiO2). Serpentine substrates commonly support vegetation and flora that is sparser and more stunted than that of other nearby soils. Many plant species are incapable of growing on serpentine substrates because they are extremely poor in essential nutrients and have a low Ca/Mg ratio. On the basis of heavy metal uptake, plants which grow on ultramafic soils can be divided into ‘normal’ and metal hyperaccumulators. While most serpentine plants are able to grow on these soils without excessive uptake of elements, hyperaccumulators take up more than 1000 mg kg-1 Ni and accumulate it into their leaf dry matter. To date, about 360 hyperaccumulators of Ni from ultramafic soils have been identified. They are mostly found in Brassicaceae family in temperate areas (especially Mediterranean and Turkey). By far the greatest number of nickelaccumulating species within any genus is found in Alyssum L. Besides the Alyssum species, nickel hyperaccumulation was also discovered in species that belong to other genera of the Brassicaceae family of Europe and Turkey. So far only the data about Ni accumulation in A. murale from the central Serbia was published, but there has been no information about the hyperaccumulative potential of the species from the ultramafic areas of Serbia that belong to some other genera (Isatis, Cardamine, Aethionema, Rorippa, Erysimum) of the Brassicaceae family. Hence, it is necessary to obtain more information about metal accumulation capacities of the plants from the Brassicaceae family growing on serpentine soils to evaluate their potential for phytoremediation including metal extraction (phytoextraction). Therefore, the aims of this thesis were to: 1) determine the basic habitat characteristics of the selected taxa from the Brassicaceae family, including information on the type of vegetation and/or community, altitude, slope, geological and pedological substrate and climate; 2) identify the basic physical (texture) and chemical (pH in H2O, pH in 1N KCl, percent of organic matter, contents of P2O5 and K2O) features of serpentine soil of the study sites; 3) determine the concentrations of the macro (Ca, Mg, Fe) as well as trace elements (Ni, Mn, Zn, Cu, Cr, Pb, Co, Cd) in soils that are developed over serpentinite substrates at several locations in the northwestern, western, southwestern and central Serbia; 4) examine the concentrations of the macro and trace elements in underground and aboveground parts (stems and/or leaves) of plants of the family Brassicaceae that inhabit serpentinite habitats in Serbia; 5) based on the obtained results, the assessment of the capacity of some plant species of the family Brassicaceae for tolerance and/or bioaccumulation of certain trace elements (with special attention to nickel and zinc); 6) identificationn and discovery of new potential hyperaccumulator species in the family Brassicaceae from Serbia...." ]
application/pdf
en
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "ultramafiti", "teški metali", "hiperakumulatori nikla", "serpentinitska zemljišta", "Brassicaceae", "Srbija" ]
[ "ultramafics", "trace metals", "nickel hyperaccumulators", "Serbia", "serpentine soils", "Brassicaceae" ]
[ "Bioakumulacioni potencijal odabranih biljnih vrsta iz porodice Brassicaceae sa serpentinskih staništa u Srbiji", "Bioaccumulation potential of selected plant species of the family Brassicaceae from serpentine habitats in Serbia" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Томовић, Гордана; Никетић, Марјан; Шинжар-Секулић, Јасмина; Михаиловић, Невена; Чучуловић, Aна; Туми, Aхмед Фараг; Биоакумулациони потенцијал одабраних биљних врста из породице Брассицацеае са серпентинских станишта у Србији; Биоакумулациони потенцијал одабраних биљних врста из породице Брассицацеае са серпентинских станишта у Србији;
[ "https://nardus.mpn.gov.rs/bitstream/id/2007/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2007/Disertacija.pdf", "https://fedorabg.bg.ac.rs/fedora/get/o:8229/bdef:Content/download" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2100" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2074
123456789-2074.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:5386/bdef:Content/download
no
Morfološka i genetička karakterizacija Aphidius colemani kompleksa vrsta (Hymenoptera, Braconidae)
Morphological and genetic characterization of Aphidius colemani species complex (Hymenoptera, Braconidae)
[ "Tomanović, Željko" ]
[ "Petrović, Anđeljko", "Žikić, Vladimir" ]
Shukshuk, Alkasm Hesen
2016-01-05T11:46:37
[ "2016-01-05T11:46:37", "2020-07-03T08:09:12" ]
2012-02-05
[ "https://nardus.mpn.gov.rs/handle/123456789/2074", "http://eteze.bg.ac.rs/application/showtheses?thesesId=153", "https://fedorabg.bg.ac.rs/fedora/get/o:5386/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024556722" ]
[ "Aphidius colemani kompleks vrsta je definisan kao grupa vrsta sa pantropsko-suptropskim rasprostranjenjem koja se odlikuje malim brojem brazdi, karakterističnog položaja, na anterolateralnom regionu petiolusa. Predstavlja jednu od 10 grupa vrsta (kompleksa) sa nerešenim taksonomskim statusom u okviru roda Aphidius. Morfološka i genetička karakterizacija Aphidius colemani kompleksa izvršena je primenom morfometrije i analize sekvenci barkoding regiona gena za subjedinicu jedan citohrom oksidaze (COI). Morfometrijskim analizama obuhvaćeno je 250 jedinki A. colemani kompleksa sа prostorа 23 države sa četiri kontinenta. Analizom varijabilnosti morfoloških karaktera pokazano je postojanje značajnih razlika u pogledu njihove informativnosti u pogledu razdavjanja različitih grupa ovog kompleksa. UtvrĎeno je koji su morfološki karakteri dovoljno informativni za razlikovanje taksona unutar ovog kompleksa parazitskih osa. Molekularne analize su obuhvatile 54 jedinke iz 8 država. Analizom sekvenci COI gena i rekonstrukcijom filogenetskih odnosa utvrĎeno je postojanje skrivenog taksona unutar A. colemani kompleksa. Kombinacijom rmorfometrijskih i molekularnih metoda utvrĎeno je da u okviru Aphidius colemani kompleksa vrsta postoje najmanje tri taksona: Aphidius colemani, Aphidius transcaspicus i Aphidius cf. colemani 1 (novi takson). UtvrĎeno je da novotkirvena vrsta naseljava Aziju (Iran) i Južnu Ameriku (Čile). Pokazano je da ne postoji jasna veza izmeĎu genetičke diferencijacije parazitoida ovog kompleksa i njihovih afidnih domaćina, kao ni izmeĎu genetičke diferencijacije i geografskog porekla." ]
[ "Aphidius colemani species complex has been defined as a group of species with pantropical – subtropical distribution which is characterized by low number of grooves (costulae) with specific position on the anterolateral region of the petiole. This group is one of the 10 groups of species (complexes) with unsolved taxonomical status among the genus Aphidius. Morphological and genetic characterization of the Aphidius colemani complex was done by using morphometrics and DNA sequence analysis of the barcoding gene for Cytochrome oxidase I (COI). In total 250 specimens of A. colemani complex from 23 deferent countries on four continents were encompassed with morphometric analysis. By analyzing variability of morphological characters, statistically significant differences were noted in the sense of their informativity in separation of deferent groups of the complex. Molecular analysis was performed on 54 specimens from eight deferent countries. By analyzing sequences of COI gene and the reconstruction of phylogenetic relations, one hidden taxon was detected among the A. colemani complex. Combination morphometric and molecular methods has shown the existence of at least three distinct taxa: Aphidius colemani, Aphidius transcaspicus and Aphidius cf. colemani 1 (new taxon). This new species can be found in Asia (Iran) and South America (Chile). It has been shown that there are no clear connections between genetic differentiation of the parasitoids from this complex and their aphid hosts, as well as between genetic differentiation and geographic distribution." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Београду
[ "Aphidius colemani", "Aphidius transcaspicus", "morfometrija", "citohrom oksidaza subjedinica 1", "parazitoidi" ]
[ "Aphidius colemani", "Aphidius transcaspicus", "morphometry", "COI mtDNA" ]
[ "Morfološka i genetička karakterizacija Aphidius colemani kompleksa vrsta (Hymenoptera, Braconidae)", "Morphological and genetic characterization of Aphidius colemani species complex (Hymenoptera, Braconidae)" ]
[ "" ]
doctoralThesis
[ "BY-NC" ]
Томановић, Жељко; Жикић, Владимир; Петровић, Aнђељко; Схуксхук, Aлкасм Хесен;
[ "https://nardus.mpn.gov.rs/bitstream/id/2035/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2035/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2074" ]
10.2298/bg20120205shukshuk
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2141
123456789-2141.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7779/bdef:Content/download
no
Efekat kadmijuma na rast i biohemijske osobine larvi gubara Lymantria dispar L.
Cadmium effect on growth and biochemical traits of Gypsy moth larvae (Lymantria dispar L.)
[ "Tucić, Nikola" ]
[ "Lazarević, Jelica", "Perić-Mataruga, Vesna" ]
Vlahović, Milena
2016-01-05T11:48:06
[ "2016-01-05T11:48:06", "2020-07-03T08:10:18" ]
2009-03-17
[ "https://nardus.mpn.gov.rs/handle/123456789/2141", "http://eteze.bg.ac.rs/application/showtheses?thesesId=1074", "https://fedorabg.bg.ac.rs/fedora/get/o:7779/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=37129487" ]
[ "Gubar (Lymantria dispar L.) spada u red najinvazivnijih polifagnih vrsta insekata, koja naseljava šume, voćnjake i urbana staništa. U ovom radu je kod larvi gubara trećeg dana četvrtog larvenog stupnja, ispitivan akutni i hroničan uticaj dve koncentracije kadmijuma (10 i 30 μgCd/g suve hrane), kao i oporavak od istih, na različite osobine larvi: komponente adaptivne vrednosti (mortalitet, trajanje prvog stupnja, trajanje razvića do ulaska u četvrti larveni stupanj, masa i relativna brzina rasta larvi), aktivnosti enzima srednjeg creva (proteaza, tripsin, leucin aminopeptidaza, α i β-glikozidaza, esteraza i glutation-S-transferaza), kao i procenat mase srednjeg creva u odnosu na masu larve. Kod svih ispitivanih enzima, osim kod GSTa, prisutan je trend pada aktivnosti na kadmijumu u odnosu na kontrolu. Hronična izloženost kadmijumu nije pokazala značajan uticaj na mortalitet prvog stupnja, kao i ukupan mortalitet, masa larvi se smanjuje pri dugotrajnim tretmanima, dok se u toku akutnog tretmana brzina rasta larvi povećava. Analize varijanse su pokazale da se kod proteolitičkih enzima aktivnost menja u zavisnosti od koncentracije metala. Između proteolitičkih enzima na svim tretmanima najverovatnije postoji neka vrsta zajedničke regulacije sinteze ili sekrecije u prisustvu kadmijuma. Regulacioni mehanizmi β-glikozidaze i GSTa se razlikuju u odnosu na ostale proučavane enzime. Zbog ograničenih energetskih resursa postoji veliki broj negativnih korelacija između mase i enzima. Znak korelacija između α i β-glikozidaza se menja na stresu u odnosu na kontrolu. Na različitim tretmanima kadmijumom plastičnost enzima se menja. Pošto se indeks fenotipske plastičnosti ne menja u toku delovanja kadmijuma, promena osobina adaptivne vrednosti ili njihova plastičnost, se ne mogu uzeti kao dobri indikatori prisustva kadmijuma. Zbog velike osetljivosti leucin aminopeptidaze i esteraze u toku akutnog stresa, postojanja korelacija sa velikim brojem digestivnih enzima, velike plastičnosti odgovora u stresnim uslovima, ova dva enzima bi se, uz dalja istraživanja, mogla uzeti kao potencijalni biomarkeri na prisustvo kadmijuma." ]
[ "The Gypsy moth (Lymantria dispar L.) represents one of the most invasive polyphagous insect species, which inhabits forests, orchards and even urban habitats. We investigated the acute and chronic effects of two cadmium concentrations (10 and 30 μgCd/g dry food), as well as the recovery from chronic stress on various traits of 4th instar gypsy moth larvae: fitness components (mortality, duration of development of the first larval instar, duration of development from hatching to molting into the 4th instar, larval mass and relative growth rate), midgut enzyme activities (activity of protease, trypsin, leucine aminopeptidase, α and β-glucosidase, esterase and glutathione S-transferase), as well as the percentage of the midgut mass in relation to the larval mass. All examined enzymes, with the exception of the glutathione S-transferase, showed a decrease of activity in relation to control. Larval mass decreased during the long-term treatment, while the acute treatment resulted in the growth rate increase. The analysis of variance showed that the activity of proteolytic enzymes depended on metal concentration. Significant broad-sense heritability was discovered after short-term exposure to cadmium. Regulation mechanisms of β-glucosidase and glutathione S-transferase differ in relation to the rest of the examined enzymes. There are a large number of negative correlations between larval mass and enzymes due to the limited energy resources. The correlation sign between α and β- glucosidases changes during the stress conditions in relation to the control. During different cadmium treatments plasticity of enzymes is changed. Changes of life history traits or their plasticity cannot be good indicators of cadmium presence. Due to a great sensitivity of leucine aminopeptidase and esterase during the acute stress, correlated response to a large number of digestive enzymes, great plasticity in stressful conditions, these two enzymes, with further research, could be potential biomarkers for cadmium presence." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Lymantria dispar L.", "kadmijum", "akutni", "hronični stres", "oporavak", "osobine adaptivne vrednosti", "enzimi srednjeg creva", "korelacije", "plastičnost", "enzimske izoforme" ]
[ "Lymantria dispar L.", "cadmium", "acute", "chronic stress", "recovery", "life history traits", "midgut enzymes", "correlation", "plasticity", "enzyme isoforms" ]
[ "Efekat kadmijuma na rast i biohemijske osobine larvi gubara Lymantria dispar L.", "Cadmium effect on growth and biochemical traits of Gypsy moth larvae (Lymantria dispar L.)" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Туцић, Никола; Лазаревић, Јелица; Перић-Матаруга, Весна; Влаховић, Милена;
[ "https://nardus.mpn.gov.rs/bitstream/id/2278/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2278/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2141" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2103
123456789-2103.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7060/bdef:Content/download
no
Uticaj kadmijuma na sistem antioksidativne zaštite i varijabilnost komponenti adaptivne vrednosti gubara Lymantria dispar L.
Cadmium effects on antioxidative defense system and on variability of fitness-related traits in Lymantria dispar L. gipsy moth
[ "Lazarević, Jelica" ]
[ "Stojković, Biljana", "Blagojević, Duško" ]
Mirčić, Dejan Lj.
2016-01-05T11:47:25
[ "2016-01-05T11:47:25", "2020-07-03T08:09:42" ]
2013-07-05
[ "https://nardus.mpn.gov.rs/handle/123456789/2103", "http://eteze.bg.ac.rs/application/showtheses?thesesId=757", "https://fedorabg.bg.ac.rs/fedora/get/o:7060/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44654351" ]
[ "Kadmijum je jedan od najpotentnijih polutanata koji dospeva u životnu sredinu, iz prirodnih i/ili antropogenih izvora, i ulazi u žive sisteme preko lanaca ishrane, ostvarujući svoj toksični efekat na svim nivoima biološke organizacije. U ovom radu ispitivan je uticaj kadmijuma u koncentracijama od 10 (C1), 30 (C2) i 50 μg Cd/g (C3) suve hrane na komponente adaptivne vrednosti, heritabilnost u širem smislu, genetičke i fenotipske korelacije, fenotipsku plastičnost, cenu plastičnosti, i na obim i pravce delovanja selekcije, kao i uticaj 50 μg Cd/g suve hrane na sistem antioksidativne zaštite kod gubara tokom larvenog razvića, razvića lutke i adultnog perioda. Gubar, Lymantria dispar L., je polifagna, invazivna vrsta koja zbog svog štetnog delovanja na šumske ekosisteme spada u grupu organizama od posebnog interesa za istraživanja fizioloških i evolucionogenetičkih odgovora koji utiču na promenu brojnosti populacije ove vrste. Kadmijum dovodi do produžetka razvića kod mlađih larvenih stupnjeva, do smanjenja mase lutke kod oba pola i skraćivanja razvića lutke i života adultnih ženki. Polovi se značajno razlikuju u trajanju pojedinih faza larvenog razvića, naročito u C3 grupi. Za većinu ispitivanih osobina postoji značajan nivo heritabilnosti u širem smislu. Pri tome, prisustvo kadmijuma u C3 grupi dovodi do značajnog povećanja heritabilnosti trajanja razvića larvi četvrtog stupnja i kod mužjaka za trajanje larvenog razvića do 5. stupnja u odnosu na kontrolu i u odnosu na ženke. Značajna varijabilnost fenotipske plastičnosti postoji kod svih mlađih larvenih stupnjeva u svim grupama, i kod oba pola za pojedine osobine u okviru različitih sredina ukazujući na potencijal evolucije adaptivnog plastičnog odgovora u stresnim uslovima sredine..." ]
[ "Cadmium is one of the most potent pollutants which enters the environment through natural and/or anthropological sources and into the living organisms though the food chain thus realizing its toxic effect in all levels of biological organization. This work examines cadmium effects at 10 (C1), 30 (C2) and 50 μg Cd/g (C3) concentrations of dry food on the fitness-related traits, broad-sense heritability, genetic and phenotypic correlations, phenotypic plasticity, cost of plasticity and on direction of selection force. Also, this work examines the effects of 50 μg Cd/g of dry food on antioxidative defense system in gypsy moth during larval development, pupal development and the adult period. Lymantria dispar L. gypsy moth is a polyphagous, invasive species which, due to its detrimental influence on forest ecosystems, is considered an organism of particular interest for researches of physiological and evolutionary-genetic responses which can influence population dynamics of this species. Cadmium prolongs the development duration in early larval instars, it also reduces larval mass in both genders and larval development and life expectancy in adult females. Duration of certain larval instars is significantly different between genders, especially in C3 group. Most of the examined traits showed a significant level of broad-sense heritability. Thus, the presence of cadmium in C3 group significantly increases the heritability of the fourth instar duration and the heritability of development duration of male larvae from hutching until the 5th instar in comparison with control and female larvae, respectively. Significant variability of phenotypic plasticity is present in all of the early instars regardless of the group, as well as in both genders for certain traits depending on different environments which points to the potential of the evolution of adaptive plastic response in stressful environments. An index of phenotypic plasticity according to Cheplik and Li’s method shows significant values for most of the traits pointing to to the possible direction of the families’ response for certain traits in the presence of cadmium..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173027/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Kadmijum", "Lymantria dispar L.", "komponente adaptivne vrednosti", "fenotipska plastičnost", "antioksidativna odbrana" ]
[ "Cadmium", "Lymantria dispar L.", "fitness traits", "phenotypic plasticity", "antioxidative defense" ]
[ "Uticaj kadmijuma na sistem antioksidativne zaštite i varijabilnost komponenti adaptivne vrednosti gubara Lymantria dispar L.", "Cadmium effects on antioxidative defense system and on variability of fitness-related traits in Lymantria dispar L. gipsy moth" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Лазаревић, Јелица; Стојковић, Биљана; Благојевић, Душко; Мирчић, Дејан Љ.;
[ "http://nardus.mpn.gov.rs/bitstream/id/2148/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2148/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2103" ]
10.2298/bg20130705mircic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2122
123456789-2122.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7281/bdef:Content/download
no
Spektralne i fraktalne karakteristike električne aktivnosti mozga pacova pod akutnim uticajem etarskog ulja kamforovog drveta
Spectral and fractal characteristics of rat brain electrical activity after acute camphor tree essential oil administration
[ "Anđus, Pavle" ]
[ "Spasić, Slađana", "Anđus, Pavle", "Spasić, Slađana", "Janać, Branka" ]
Stojadinović, Gordana M.
2016-01-05T11:47:46
[ "2016-01-05T11:47:46", "2020-07-03T08:09:58" ]
2013-11-27
[ "https://nardus.mpn.gov.rs/handle/123456789/2122", "http://eteze.bg.ac.rs/application/showtheses?thesesId=878", "https://fedorabg.bg.ac.rs/fedora/get/o:7281/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024622514" ]
[ "Odlučili smo se za istraživanje pojave epileptičnih napada kod pacova, izazvanih etarskim uljem kamforovog drveta ili njegovim glavnim konstituentom 1,8-sineolom. Eksperimenti su izvedeni na odraslim pacovima muškog pola Wistar soja. Operativni zahvati i akutna registrovanja elektrofizioloških signala su obavljeni pod Nembutal anestezijom. Registrovani su lokalni potencijali polja kore velikog i malog mozga u uslovima pre i 1 h posle intraperitonealne (i.p.) administracije etarskog ulja kamforovog drveta ili 1,8-sineola. Pacovima je intraperitonealno ubrizgavano etarsko ulje kamforovog drveta (150-750 μl/kg t.m., u 1 ml fiziološkog rastvora i.p.) ili 1,8-sineol (300-500 μl/kg t.m., u 1 ml fiziološkog rastvora, i.p.). Digitalizovani elektrokortikalni signali (frekvence semplovanja: 256 Hz) su analizirani uz pomoć brze Furijeove transformacije, a potom je izračunavana vrednost fraktalne dimenzije (FD) i Hurstovog eksponenta (H). Etarsko ulje kamforovog drveta (≥450 μl/kg t.m.) ili 1,8-sineol (≥300 μl/kg t.m.) indukuju epileptičnu aktivnost sa pojavom pojedinačnih i grupnih šiljaka velike amplitude u elektrokortikogramu sa povremenim kloničnim konvulzijama ekstremiteta, 3-15 minuta nakon administracije supstanci. Na velikom mozgu, nakon administracije etarskog ulja kamforovog drveta, kao i 1,8-sineola, u epohama sa epileptičnom aktivnošću, bio je prisutan veliki porast ukupne snage kao i povećanje relativne snage u delta (0,1-4,0 Hz) frekventnom opsegu, odnosno smanjenje relativne snage u teta (4,1-8,0 Hz), alfa (8,1-15,0 Hz), beta (15,1- 32,0 Hz) i gama (32,1-128,0 Hz) frekventnim opsezima. Potvrđeno je dominantno učešće delta (0,1-4,0 Hz) frekventnog opsega a vrednost relativne snage se kretala od 47 do 87 %. Na malom mozgu, u epohama sa epileptičnom aktivnošću, relativne snage frekventnih opsega su se različito ponašale u odnosu na veliki mozak i različito nakon administracije 1,8-sineola u odnosu na etarsko ulje kamforovog drveta. Razlike između velikog i malog mozga, kao i razlike u delovanju etarskog ulja kamforovog drveta i 1,8-sineola, bile su izraženije u parametrima fraktalne analize. Na velikom mozgu pacova, nakon administracije etarskog ulja kamforovog drveta, u epohama sa epileptičnom aktivnošću, postoji povećanje vrednosti FD u odnosu na kontrolu, a na malom mozgu smanjenje. Suprotno, nakon administracije 1,8-sineola postoji smanjenje vrednosti FD na velikom, odnosno povećanje na malom mozgu. Postojala je i dozna zavisnost odgovora nakon administracije etarskog ulja kamforovog drveta, odnosno 1,8-sineola. Na velikom mozgu, povećanje doze etarskog ulja kamforovog drveta, odnosno 1,8-sineola, u epohama sa epileptičnom aktivnošću, praćeno je povećanjem relativne snage delta (0,1-4,0 Hz) frekventnog opsega, odnosno smanjenjem relativne snage teta (4,1-8,0 Hz), alfa (8,1-15,0 Hz), beta (15,1-32,0 Hz) i gama (32,1-128,0 Hz) frekventnih opsega. Suprotno, na malom mozgu, povećanje doze etarskog ulja kamforovog drveta u epohama sa epileptičnom aktivnošću, praćeno je smanjenjem relativne snage delta (0,1-4,0 Hz), odnosno povećanjem relativne snage teta (4,1-8,0 Hz), alfa (8,1-15,0 Hz) i beta (15,1-32,0 Hz) frekventnih opsega. Na malom mozgu, povećanje doze 1,8-sineola u epohama sa epileptičnom aktivnošću, praćeno je povećanjem relativne snage teta (4,1-8,0 Hz), odnosno smanjenjem relativne snage gama (32,1-128,0 Hz) frekventnog opsega. I na velikom i na malom mozgu pacova, promene vrednosti FD negativno su korelisane sa povećanjem doze kako etarskog ulja kamforovog drveta tako i 1,8-sineola..." ]
[ "We investigated the rat brain activity in acute seizures evoked by camphor tree essential oil or its main constituent 1,8-cineole. The experiments were performed on adult male Wistar rats. The surgery and acute electrophysiological recordings were performed under pentobarbital sodium anesthesia. Local field potentials of cerebral and cerebellar parietal cortex were recorded before and 1 h after intraperitoneal (i.p.) camphor essential oil or 1,8-cineole administration. The rats were intraperitoneally injected with camphor essential oil (150-750 μl/kg b.w., in 1 ml of saline, i.p.) or 1,8-cineole (300-500 μl/kg b.w., in 1 ml of saline, i.p.). The digitized electrocortical signals (sampling frequency: 256 Hz) were analyzed by the Fast Fourier Transform, and were calculated Fractal dimension (FD) and Hurst exponent (H) also. Camphor essential oil (≥450 μl/kg b.w.) and 1,8-cineole (≥300 μl/kg b.w.) induced seizure-like activity with single and multiple spiking of high amplitudes in the parietal electrocorticogram and occasional clonic limb convulsions, 3-15 min after their administration. On the cerebrum, after camphor essential oil and 1,8-cineole administration, in epochs with epileptic activity, there was high increase in total power and an increase in relative power in delta (0,1-4,0 Hz) frequency range, as well as a decrease in relative power in theta (4,1-8,0 Hz), alpha (8,1-15,0 Hz), beta (15,1-32,0 Hz) and gamma (32,1-128,0 Hz) frequency ranges. It was confirmed the dominant presence of the delta (0,1- 4,0 Hz) frequency range and the values of the relative power ranged from 47 to 87 %. On the cerebellum, in epochs with epileptic activity, the relative power of the frequency ranges were behaving differently than cerebrum, as well as after administration of 1,8-cineole compared to the camphor essential oil. The differences between the cerebrum and cerebellum, as well as differences in the activities of the camphor essential oil and 1,8-cineole, were more pronounced in the parameters of fractal analysis. On the cerebrum, after camphor essential oil aministration, in epochs with epileptic activity, there was an increase in the FD value compared to the control, and the decrease on the cerebellum. In contrast, after 1,8-cineole administration there was a decrease in FD value on the cerebrum, and increase on the cerebellum. There was a dose dependence of response after the camphor essential oil and 1,8-cineole administration. On the cerebrum, increasing the dose of the camphor essential oil and 1,8-cineole, in epochs with epileptic activity, correlated with an increase in relative power in delta (0,1 to 4,0 Hz) frequency range and a decrease in relative power in theta (4,1-8,0 Hz), alpha (8,1-15,0 Hz), beta (15,1-32,0 Hz) and gamma (32,1-128,0 Hz) frequency ranges. In contrast, on the cerebellum, increasing the dose of the camphor essential oil in epochs with epileptic activity, correlated with a decrease in relative power in delta (0,1 to 4,0 Hz) and increase in relative power in theta (4,1 to 8,0 Hz), alpha (8,1 to 15,0 Hz) and beta (15,1 to 32,0 Hz) frequency ranges. On the cerebellum, increasing the dose of 1,8-cineole, in epochs with epileptic activity, correlated with an increase in relative power in theta (4,1-8,0 Hz) and a decrease in relative power in gamma (32,1-128,0 Hz) frequency range..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173040/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "električna aktivnost mozga", "spektralna analiza", "fraktalna analiza", "etarsko ulje kamforovog drveta" ]
[ "electric brain activity", "spectral analysis", "fractal analysis", "camphor tree essential oil" ]
[ "Spektralne i fraktalne karakteristike električne aktivnosti mozga pacova pod akutnim uticajem etarskog ulja kamforovog drveta", "Spectral and fractal characteristics of rat brain electrical activity after acute camphor tree essential oil administration" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Aнђус, Павле; Aнђус, Павле; Јанаћ, Бранка; Спасић, Слађана; Спасић, Слађана; Стојадиновић, Гордана М.; Спектралне и фракталне карактеристике електричне активности мозга пацова под акутним утицајем етарског уља камфоровог дрвета; Спектралне и фракталне карактеристике електричне активности мозга пацова под акутним утицајем етарског уља камфоровог дрвета;
[ "https://nardus.mpn.gov.rs/bitstream/id/2211/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2211/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2122" ]
10.2298/bg20131127stojadinovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2028
123456789-2028.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2323/bdef:Content/download
no
Konzervirana svojstva proteina virusa hepatitisa C genotipa 1b kao prognostičkih markera odgovora na kombinovanu terapiju pegilovanim interferonom i ribavirinom
Conserved properties of hepatitis C genotype 1b proteinsas prognostic markers of response to pegylated interferon and ribavirin combination therapy
[ "Glišić, Sanja" ]
[ "Brajušković, Goran", "Stanojević, Maja", "Nožić, Darko" ]
Jovanović-Ćupić, Snežana P.
2016-01-05T11:45:25
[ "2016-01-05T11:45:25", "2020-07-03T08:11:29" ]
2012-07-10
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=35", "https://nardus.mpn.gov.rs/handle/123456789/2028", "https://fedorabg.bg.ac.rs/fedora/get/o:2323/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=41538575" ]
[ "Uvod: Infekcija virusom hepatitisa C (HCV) predstavlja značajan globalni zdravstveni problem koji često vodi ka hroničnoj bolesti jetre i cirozi. Prema podacima Svetske zdravstvene organizacije registrovano je preko 170 miliona ljudi inficiranih virusom HCV. Sadašnja standardna terapija hroničnog HCV-a kod pacijenata inficiranih genotipom 1b, koji predstavlja najčešći genotip kako u SAD, zapadnoj Evropi i Srbiji, se sastoji od pegilovanog interferona u kombinaciji sa ribavirinom. Međutim, kombinovana terapija je praćena brojnim neželjenim efektima i dovodi do stabilnog virusološkog odgovora samo kod 50% pacijenata inficiranih genotipom 1. Stoga bi jednostavan i pouzdan test, koji bi pre početka terapije mogao da predvidi virusološki odgovor, bio od velike koristi u kliničkoj praksi. Metode: Identifikacija konzervirane informacije sadržane u proteinima HCV koja korelira sa odgovorom na standardnu kombinovanu terapiju rađena je bioinformatičkom analizom. Uzorci plazme 48 pacijenata sa hroničnom infekcijom HCV, genotipa 1b su klasifikovani u odnosu na odgovor na kombinovanu terapiju. Za određivanje primarne strukture proteina HCV primenjene su klasične metode molekularne biologije: reverzna transkripcija i lančana reakcija polimeraze (Rt-PCR), apsolutna kvantifikacija sa PCR-om u realnom vremenu i automatsko sekvenciranje. Rezultati: Na osnovu rezultata analize svih proteina virusa HCV utvrđeno je da je informacioni sadržaj proteina p7 u korelаciji sа odgovorom nа kombinovаnu terаpiju. Rezultati dobijeni analizom proteinskih sekvenci, 48 pacijenata sa teritorije Srbije su u saglasnosti sa predloženim bioinformatičkim kriterijumom. Posebna pažnja je posvećena optimizaciji eksperimentalnih protokola i formiranju homogenenih grupa u odnosu na osobenosti virusa (tip i podtip) i odgovora na antivirusnu terapiju pacijenata. Zaključak: Na osnovu rezultata ove studije predložen je bioinformatički kriterijum koji omogućаvа procenu odgovora hroničnih HCV bolesnikа inficirаnih genotipom 1b nа kombinovаnu terаpiju." ]
[ "Background: Hepatitis C virus (HCV) infection is a major and rising global health problem, affecting about 170 million people worldwide, according to WHO data, and often leading to chronic liver disease and cirrhosis. The current standard therapy for chronic HCV infection with pegylated interferon combined with ribavirin in patients with the genotype 1 infection, the most frequent genotype in the USA, Western Europe and Serbia, accompanied by numerous side effects, leads to a successful outcome in only about 50% of individuals. Therefore, simple and accurate prediction of hepatitis C treatment response is of great benefit to patients and clinicians. Methods: Identification of the conserved information of the HCV proteins that correlate with the combination therapy outcome was performed by bioinformatics analysis. Plasma samples of 48 chronic HCV patients from Serbia were classified according to the outcome of therapy. To determine primary structure of HCV proteins classical methods of molecular biology: reverse transcription and polymerase chain reaction (Rt-PCR), the absolute quantification-Real Time PCR and DNA sequencing were applied. Results: Among the HCV proteins that we have analyzed the informational property of the p7 of HCV genotype 1b was best related to the therapy outcome. Findings obtained from analyzing sequences 48 patients collected from Serbia were in perfect agreement with proposed bioinformatics criterion. Special attention was paid to optimization experimental protocols and forming homogeneous groups of patients regarding HCV genotype (type and subtype) and therapy response. Conclusions: On the basis of the results in the present study, a simple bioinformatics criterion that could be useful in assessment of the response of HCV-infected patients to the combination therapy has been proposed." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173049/RS//", "info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/37021/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Hepatitis C virus (HCV)", "bioinformatika", "metod informacionih spektara", "proteinske sekvence" ]
[ "Hepatitis C virus (HCV)", "Bioinformatics", "Informational spectrum method", "Protein sequence" ]
[ "Konzervirana svojstva proteina virusa hepatitisa C genotipa 1b kao prognostičkih markera odgovora na kombinovanu terapiju pegilovanim interferonom i ribavirinom", "Conserved properties of hepatitis C genotype 1b proteinsas prognostic markers of response to pegylated interferon and ribavirin combination therapy" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Глишић, Сања; Ножић, Дарко; Брајушковић, Горан; Станојевић, Маја; Јовановић-Ћупић, Снежана П.; Конзервирана својства протеина вируса хепатитиса Ц генотипа 1б као прогностичких маркера одговора на комбиновану терапију пегилованим интерфероном и рибавирином; Конзервирана својства протеина вируса хепатитиса Ц генотипа 1б као прогностичких маркера одговора на комбиновану терапију пегилованим интерфероном и рибавирином;
[ "https://nardus.mpn.gov.rs/bitstream/id/2525/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2525/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2028" ]
10.2298/bg20120710jovanoviccupic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2081
123456789-2081.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:5401/bdef:Content/download
no
Mehanizam zaštitnog dejstva arilpiperazinskih liganada za dopaminske D2 receptore u azot monoksidom i 6-hidroksidopaminom izazvanoj smrti SH-SY5Y ćelija humanog neuroblastoma
Protective mechanism of arylpiperazine dopaminergic D2ligands on nitric oxide and 6-hydroxydopamine induced SH-SY5Y human neuroblastoma cell death
[ "Anđus, Pavle" ]
[ "Zogović, Nevena", "Trajković, Vladimir", "Tomić, Mirko" ]
Tovilović, Gordana I.
2016-01-05T11:46:41
[ "2016-01-05T11:46:41", "2020-07-03T08:10:27" ]
2012-12-28
[ "https://nardus.mpn.gov.rs/handle/123456789/2081", "http://eteze.bg.ac.rs/application/showtheses?thesesId=167", "https://fedorabg.bg.ac.rs/fedora/get/o:5401/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024560050" ]
[ "U ovom radu je ispitivan uticaj 20 novosintetisanih arilpiperazinskih dopaminergičkih liganada na vijabilnost humanih SH-SY5Y neuroblastomskih ćelija tretiranih donorom azot monoksida (engl. nitric oxide, NO) natrijum nitroprusidom (engl. sodium nitroprusside, SNP) i uzročnikom oksidativnog stresa dopaminergičkim neurotoksinom 6-hidroksidopaminom (6-OHDA). Supstanca koje je pružala najjaču zaštitu od donora NO je bio N-{4-[2-(4-fenil-piperazin-1-il)-etil]-fenil}-pikolinamid (arilpiperazin 6a), dok je N-{3-[2-(4-fenil-piperazin-1-il)-etil]-fenil}-pikolinamid (arilpiperazin 6b) najefikasnije štitio humanu neuroblastomsku ćelijsku liniju SH-SY5Y od 6-OHDA. Arilpiperazin 6a je delimično sprečavao povećanje sadržaja superoksid anjon radikala, smanjenje potencijala membrane mitohondrija i unutarćelijskog sadržaja adenozin-trifosfata (ATP), aktivaciju kaspaza i sledstvenu fragmentaciju DNK koje je izazivao NO. Uočeno smanjenje unutarćelijske koncentracije superoksida nije bilo posledica direktne interakcije ispitivanog arilpiperazina sa O2 -∙, niti je supstanca 6a uticala na akumulaciju NO unutar ćelije. Arilpiperazin 6a je sprečavao inhibiciju protektivnog Akt, kao i aktivaciju proapoptotskih ERK, JNK i AMPK signalnih puteva izazvane SNP-om, ukazujući na bitnu ulogu ovih molekula u njegovom zaštitnom delovanju. Potencijalni značaj arilpiperazina 6a u sprečavanju neurodegenerativnih/neurozapaljenskih procesa posebno naglašava činjenica da je štitio neuronima slične SH-SY5Y ćelije i od citotoksičnog efekta NO-a poreklom od stimulisanih makrofaga. Slično, arilpiperazin 6b je sprečavao povećanje unutarćelijskog sadržaja superoksid anjon radikala (O2 -∙), smanjenje potencijala membrane mitohondrija posledične apoptotske događaje – aktivaciju kaspaza i fragmentaciju DNK – koje je izazivao 6-OHDA. Stabilizacija potencijala mitohondrijalne membrane pod dejstvom arilpiperazina 6b se vremenski poklapala sa smanjenjem unutarćelijskog sadržaja O2 -∙,što ukazuje da je supstanca 6b inhibirala oslobađanje superoksida iz oštećenih mitohondrija stabilizacijom potencijala njihove membrane..." ]
[ "We investigated the protective ability of 20 novel arylpiperazine-based dopaminergic ligands against nitric oxide (NO) and dopaminergic neurotoxin 6-hydroxydopamine (6-OHDA)-mediated neurotoxicity. The most potent neuroprotective compound against NO-induced toxicity was N-{4-[2-(4-phenylpiperazin- 1-yl)-ethyl]-phenyl}-picolinamide (arylpiperazine 6a), while N-{3-[2-(4- phenyl-piperazin-1-yl)-ethyl]-phenyl}-picolinamide (arylpiperazine 6b) most effectively protected SH-SY5Y human neuron-like cells from 6-OHDA-generated oxidative injury. Arylpiperazine 6a diminished the proapoptotic action of NO donor sodium nitroprusside (SNP) by decreasing superoxide anion content, mitochondrial membrane depolarization, decline in intracellular adenozine-triphosphate (ATP) content, caspase activation and subsequent phosphatydilserine externalization/DNA fragmentation. The observed decrease of intracellular superoxide concentration was not mediated by direct O2 -∙ scavenging. Arylpiperazine 6a did not interfere with NO accumulation within the cell. The protective effect of arylpiperazine 6a in NO-induced stress was associated with activation of anti-apoptotic (Akt) and the inhibition of proapoptotic (JNK, ERK, AMPK) signaling pathways. A potential therapeutic value of the arylpiperazine 6a in neurodegenerative/neuroinflammatory diseases prevention was additionally supported by the ability of this arylpiperazine to protect SH-SY5Y neuronlike cells from macrophage-derived NO. Similarly, arylpiperazine 6b prevented 6-OHDA-induced increase in superoxide anion content, mitochondrial membrane depolarization and following apoptotic related events – caspase activation and DNA fragmentation. The stabilization of 6-OHDA-disrupted mitochondrial membrane potential by arylpiperazine 6b correlated with the decrease in intracellular superoxide anion (O2 -∙) content, suggesting that decline in O2 -∙ concentration resulted from mitohondrial membrane stabilization" ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173053/RS//", "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41030/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "arilpiperazini", "neuroprotekcija", "azot monoksid", "oksidativni stres", "6-hidroksidopamin", "apoptoza", "autofagija", "dopaminski D2 receptori" ]
[ "arylpiperazines", "neuroprotection", "nitric oxide", "oxidative stress", "6-hydroxydopamine", "apoptosis", "autophagy", "dopamine D2 receptors" ]
[ "Mehanizam zaštitnog dejstva arilpiperazinskih liganada za dopaminske D2 receptore u azot monoksidom i 6-hidroksidopaminom izazvanoj smrti SH-SY5Y ćelija humanog neuroblastoma", "Protective mechanism of arylpiperazine dopaminergic D2ligands on nitric oxide and 6-hydroxydopamine induced SH-SY5Y human neuroblastoma cell death" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Aнђус, Павле; Зоговић, Невена; Томић, Мирко; Трајковић, Владимир; Товиловић, Гордана И.;
[ "https://nardus.mpn.gov.rs/bitstream/id/2309/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2309/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2081" ]
10.2298/bg20121228tovilovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2125
123456789-2125.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7287/bdef:Content/download
no
Korelacija između proteinske i genske ekspresije HER-2 i topoizomeraze 2a kod infiltrativnog duktalnog karcinoma dojke
Correlation between protein and gene expression of HER-2 and topoisomerase 2a in infiltrative ductal breast carcinoma
[ "Koko, Vesna" ]
[ "Čokić, Vladan", "Budeč, Mirela", "Markelić, Milica" ]
Mitrović, Olivera S.
2016-01-05T11:47:48
[ "2016-01-05T11:47:48", "2020-07-03T08:10:02" ]
2013-11-01
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=883", "https://nardus.mpn.gov.rs/handle/123456789/2125", "https://fedorabg.bg.ac.rs/fedora/get/o:7287/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44859407" ]
[ "Uvod: Karcinom dojke predstavlja jako heterogeno oboljenje kao i jedno od najzastupljenijih malignih bolesti u opštoj ženskoj populaciji. Na osnovu prisustva i nivoa ekspresije ER-R, PR-R i HER-2 receptora ostvarena je podela na četiri molekularna tipa karcinoma dojke: luminalni A (ER-R+ i / ili PR-R+, HER-2-), luminalni B (ER-R+ i / ili PR-R+, HER-2+), HER-2 pozitivni (ER-R- i / ili PR-R-, HER-2+) i trostruko negativni (ER-R- i / ili PR-R-, HER-2-) tip karcinoma dojke. U oko 20 do 30% karcinoma dojke javlja se amplifikacija HER-2 i TOP2A gena. Amplifikacija HER-2 i TOP2A gena je povezana sa lošijim ishodom bolesti, agresivnijim tokom i dobrim odgovorom pacijentkinja na terapiju Herceptinom i antraciklinima. Koamplifikacija HER-2 i TOP2A gena je prisutna u 12 do 38% karcinoma dojke. Na osnovu rezultata nekoliko studija postavljena je hipoteza po kojoj se amplifikacija TOP2A gena javlja isključivo sa amplifikacijom HER-2 gena, mada postoje i drugačija, suprotna mišljenja. Cilj: Cilj naše studije bio je da se odrede genski statusi HER-2 i TOP2A kao i njihova korelacija sa apoptotskim i proliferativnim indeksom, nivoom ekspresije ER-R, PR-R i HER-2 receptora, TOP2A, BRCA1, Bcl-2 i p53 proteina, osnovnim kliničko-patološkim parametrima kod tumora dojke 60 pacijentkinja podeljenih u četiri molekularna tipa. Materijal i metode: Šezdeset tkivnih uzoraka karcinoma dojke ispitivano je imunohistohemijskom metodom na prisustvo i stepen ekspresije ER-R, PR-R, HER-2, p53, Bcl-2, TOP2A, BRCA1, ssDNA, Ki67, kao i FISH metodom na stepen genske modifikacije HER-2 i TOP2A. Stepen modifikacije HER-2 i TOP2A gena analiziran je primenom HER-2 FISH pharmDxTM kit i TOP2A FISH pharmDxTM kit (DakoCytomation). Rezultati: Kliničko-patološki podaci - Starost ispitanica se kretala u rasponu izmeñu 38 i 87 godina (64.79 ± 21). Veličina tumora se kretala u opsegu izmeñu 0.4 i 5.5 cm, dok je histološki gradus G1 bio zastupljen kod 6 (10%) karcinoma, histološki gradus G2 kod 25 (41.7%) i histološki gradus G3 kod 17 (28.3%) karcinoma dojke..." ]
[ "Introduction: Breast cancer is a heterogeneous disease and the most common malignancy in women with increasing incidence in recent years. According to immunohistochemical expression of estrogen receptor (ER-R), progesterone receptor (PR-R) and HER-2 four different molecular subtypes of breast cancer were identified: luminal A (ER-R+ and / or PR-R+, HER-2-), luminal B (ER-R+ and / or PR-R+, HER- 2+), HER-2 positive (ER-R- and / or PR-R-, HER-2+) and triple negative (ER-R- and / or PR-R-, HER-2-) breast cancer subtypes. HER-2 and TOP2A genes are amplified in 20– 30 % of breast cancers. Amplification of HER-2 and TOP2A genes are associated with a poor prognosis and predictive response to treatment by Herceptin and anthracycline. Co-amplification of HER-2 and TOP2A has been seen in approximately 12–38 % of patients with breast cancers. A few retrospective studies have reported that TOP2A gene amplification occurs almost exclusively in conjunction with HER-2 gene amplification. Aim: The aim of our study is to investigate HER-2 and TOP2A gene aberrations and their correlation with apoptotic and proliferative indexes, Bcl-2, p53, ER-R, PR-R, HER-2, TOP2A, BRCA1, clinicopathological parameters and overall survival in four molecular subtypes of breast cancer. Material and methods: Sixty paraffin-embedded breast cancer tissue samples were studied immunohistochemically for the expression of ER-R, PR-R, HER-2, p53, Bcl-2, ssDNA, Ki67, BRCA1, TOP2A and FISH for HER-2 and TOP2A gene aberrations. HER-2 and TOP2A gene copy number were analyzed by HER-2 FISH pharmDxTM kit and TOP2A FISH pharmDxTM kit (DakoCytomation), respectively. Results: Clinicopathological parameters - The ages of patients ranged from 38 to 87 years (64.79 ± 21). The tumor size ranged between 0.4 and 5.5 cm, and the histological grades were G1, G2 and G3 in 6 (10 %), 25 (41.7 %), and 17 (28.3 %) patients, respectively. In 26 patients (43.4 %) lymph node status was negative; while in 22 patients (36.6 %) was detected positive lymph node status..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175053/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "molekularni tipovi karcinoma dojke", "HER-2 i TOP2A genske aberacije", "ER-R", "PR-R", "HER-2", "TOP2A", "BRCA1", "p53", "Bcl-2", "Ki67 i ssDNA imunohistohemijska ekspresija" ]
[ "molecular subtypes of breast cancer", "HER-2 and TOP2A gene aberrations", "ER-R", "PR-R", "HER-2", "p53", "Bcl-2", "TOP2A", "BRCA1", "Ki67 and ssDNA expression" ]
[ "Korelacija između proteinske i genske ekspresije HER-2 i topoizomeraze 2a kod infiltrativnog duktalnog karcinoma dojke", "Correlation between protein and gene expression of HER-2 and topoisomerase 2a in infiltrative ductal breast carcinoma" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Коко, Весна; Маркелић, Милица; Будеч, Мирела; Чокић, Владан; Митровић, Оливера С.; Корелација између протеинске и генске експресије ХЕР-2 и топоизомеразе 2а код инфилтративног дукталног карцинома дојке; Корелација између протеинске и генске експресије ХЕР-2 и топоизомеразе 2а код инфилтративног дукталног карцинома дојке;
[ "https://nardus.mpn.gov.rs/bitstream/id/2223/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2223/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2125" ]
10.2298/bg20131101mitrovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2098
123456789-2098.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:6813/bdef:Content/download
no
Detekcija mutacija u p53 genu kod bolesnica sa primarnim operabilnim karcinomom dojke
Detection of p53 gene mutation in operable breast cancer patients
[ "Romac, Stanka" ]
[ "Branković-Magić, Mirjana", "Radulović, Siniša" ]
Janković, Radmila N.
2016-01-05T11:47:19
[ "2016-01-05T11:47:19", "2020-07-03T08:09:36" ]
2004-07-19
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=631", "https://nardus.mpn.gov.rs/handle/123456789/2098", "https://fedorabg.bg.ac.rs/fedora/get/o:6813/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=29440015" ]
[ "Uvod: Zbog svoje uloge u očuvanju genomskog integriteta, produkt normalnog p53 gena se često naziva i \"čuvar genoma\". Pokazano je da u ćeljama gde je p53 izmenjen dolazi do aberantne replikacije DNK, stoje praćeno genomskom nestabilnošću. Gubitak funkcije p53 povezan je ne samo sa nemogućnošću popravke DNK, već i sa apoptozom. Podaci ukazuju da p53 ima kritičnu ulogu u aktiviranju apotoze pri odgovoru na različite vidove hemioterapije u karcinomu dojke. Cilj ovog rada bio je da se utvrdi da li p53 mutacije utiču na odgovor na hemioterapiju i da li p53 mutacije mogu dati informaciju o prognozi bolesnica sa karcinomom dojke. Bolesnice i metode. U rad je bilo uključeno 100 bolesnica, od toga 70 sa metastazama u regionalnim limfnim čvorovima i 30 bolesnica bez metastaza u regionalnim limfnim čvorovima. Sve osim jedne bolesnice sa metastazama u limfnim čvorovima su primile adjuvantnu hemioterapiju. 65/70 bolesnica je primilo CMF (ciklofosfamid, metotreksat, 5-fluorouracil) po modifikovanom intravenoznom protokolu, i 5/70 je primilo FAC (5-fluorouracil, adriablastin, ciklofosfamid). Bolesnice su praćene u intervalu 6-127 meseci, medijana 48 meseci. DNK je izolovana fenolskom ekstrakcijom iz uzoraka rutinski prikupljanih za odredjivanje receptora za steroidne hormone. Specifični DNK regioni p53 gena koji odgovaraju eksonima 5-8, umnoženi su lančanom reakcijom polimeraze (PCR). Detekcija mutacija izvršena je SSCP (konformacioni polimorfizam jednolančane DNK) elektroforezom. Gelovi su bojeni srebrom. Amplifikacija c-myc gena odredjena je diferenijalnim PCR-om. Receptori za steroidne hormone odredjivani su biohemijskom saturacionom metodom sa aktivnim ugljem. Hi-kvadrat i Fisher-ov egzaktni test, kao i Kaplan-Meir-ov i Log-Rank test su korišćeni za statističku obradu podataka. Rezultati: p53 mutacije detektovane su kod 21/100 bolesnica. Ukupno je pronadjeno 25 mutacija (po dve mutacije detektovane su kod 4 bolesnice), i njihova raspodela po ispitivanim eksonima nije bila jednaka: 10 u eksonu 5, 6 u eksonu 6, 8 u eksonu 7 i samo jedna mutacija u eksonu 8. Učestalost p53 mutacija bila je znatno viša kod bolesnica sa metastazama u limfnim čvorovima u odnosu na bolesnice bez metastaza u limfnim čvorovima. p53 mutacije bile su predominantno locirane kod bolesnica sa invazivnim duktalnim tipom karcinoma dojke. S obzirom da je kod bolesnica bez metastaza u regionalnim limfnim čvorovima pronadjena samo jedna mutacija, korelacija izmedju detektovanih mutacija i klničkog toka bolesti analizirana je samo kod bolesnica sa metastazama u limfnim čvorovima. Od ovih bolesnica, 32/70 je imalo ponovno javljanje bolesti (relaps). U prvih 24 meseci praćenja, bolesnice sa p53 mutacijama su imale značajno kraći period do ponovnog javljanja bolesti (DFI), u odnosu na bolesnice bez p53 mutacija. Takodje, u grupi bolesnica sa relapsom pokazan je značajno kraći period do progresije bolesti (PFI) kod bolesnica sa p53 mutacijama u odnosu na bolesnice bez mutacija. U odnosu na ukupno preživljavanje (OS), značajno kraće preživljavanje zabeleženo je kod bolesnica sa p53 i/ili c-myc alteracijama u odnosu na bolesnice bez detektovanih genskih alteracija. Zaključak: Pojava ranog relapsa kod bolesnica sa p53 mutacijama koje su primile hemioterapiju, ukazuje na prediktivni značaj p53. Rezultati dobijeni za OS, ističu značaj istovremenog odredjivanja alteracija više gena u nastojanju da se definiše molekularni profil svakog tumora, što za krajnji cilj ima individualni terapijski pristup." ]
[ "Background: the main function of normal p53 gene product is to preserve genome integrity by acting as the \"guardian of the genome\". It has been shown that in p5 3-defective cells DNA aberrant replication is followed by genome instability. Loss of p53 function seems to be connected not only with abrogation of DNA reapair, but also with abrogation of apoptosis. The evidence indicates that p53 play a critical role in implementing apoptosis in response to treatment with different chemotherapeutics in breast cancer. The aim of this study was to evaluate whether tumor's p53 mutations affect response to chemotherapy, and whether p53 mutations provide prognostic information for breast cancer patients. Patients and methods: 100 breast cancer patients, among 70 lymph node-positive and 30 lymph node-negative were included. All except one node-positive patients underwent chemotherapy as adjuvant treatment. 65/70 patients received CMF (cyclophosphamide, methotrexate, 5-fluorouracil) modified intravenous protocol, and 5/70 FAC (5-flurouracil, adriablastine, cyclophosphamide) protocol. The patients were followed-up from 6 to 127, median 48 months. DNA was isolated by phenol extraction from samples routinely collected for steroid receptor determinations. Specific DNA regions corresponding to exons 5-8 were amplified by polimerase chain reaction (PCR). Detection of mutations was done by single stranded conformation polymorphism - SSCP - electrophoresis. Gels were silver stained. C-myc amplification was detected by differential PCR. Steroid receptors were measured by five- point dextrane coated charcoal (DCC) assay. Chi-square and Fisher exact test, as well as Kaplan-Meir and Log-Rank tests were used for statistical evaluation. Results: p53 mutations were detected in 21/100 patients. Totally 25 mutations were found (in 4 patients double mutations were detected). They were not equally spread within examined exons - 10 in exon 5, 6 in exon 6, 8 in exon 7 and only one mutation in exon 8. The incidence of p53 mutations was significantly higher in lymph node-positive than in lyph node-negative patients. Further, p53 mutations were predominantly located in invasive ductal histological type. Since the node-negative patients only one mutation was found, the correlation between detected mutations and the course of disease was examined in lymph node-positive group of patients. Among them, 32/70 patients developed relapse of disease. In the first 24 months of follow-up, patients with p53 mutations had significantly shorter disease free interval (DFI), than the patients without p53 mutations. Also, significantly shorter progression free interval (PFI) in relapsed patients with p53 mutations than in relapsed patients without p53 mutation was found. Concerning overall survival (OS), significantly shorter OS was found in the patients with p53 and/or c-myc gene alterations than in the patients without gene alterations. Conclusion: In conclusion, occurrence of early relapse in chemotherapy treated patients with p53 mutations, supports data about p53 predictive value. The results obtained for OS indicate importance of simultaneous screening for multiple gene alterations in attempt to define specific tumor molecular profile, finally resulting with individual therapeutic approach." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/36034/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "maligne neoplazme", "karcinom dojke", "p53" ]
[ "malignanant neoplasms", "breast cancer", "p53" ]
[ "Detekcija mutacija u p53 genu kod bolesnica sa primarnim operabilnim karcinomom dojke", "Detection of p53 gene mutation in operable breast cancer patients" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Ромац, Станка; Бранковић-Магић, Мирјана; Радуловић, Синиша; Јанковић, Радмила Н.; Детекција мутација у п53 гену код болесница са примарним операбилним карциномом дојке; Детекција мутација у п53 гену код болесница са примарним операбилним карциномом дојке;
[ "https://nardus.mpn.gov.rs/bitstream/id/2125/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2125/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2098" ]
10.2298/bg20040719jankovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2092
123456789-2092.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:8222/bdef:Content/download
no
Analiza fosforilacije glukokortikoidnog receptora u limfocitima zdravih ljudi i pacijenata sa akutnom epizodom depresivnog poremećaja
Analysis of lymphocyte glucocorticoid receptor phosphorylation in healty subjets and patients with current episode of depressive disorder
[ "Adžić, Miroslav" ]
[ "Marić-Bojović, Nađa", "Matić, Gordana", "Savić, Danka", "Radojčić, Marija" ]
Lukić, Iva S.
2016-01-05T11:46:50
[ "2016-01-05T11:46:50", "2020-07-03T08:09:05" ]
2014-01-30
[ "https://nardus.mpn.gov.rs/handle/123456789/2092", "http://eteze.bg.ac.rs/application/showtheses?thesesId=1256", "https://fedorabg.bg.ac.rs/fedora/get/o:8222/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024679090" ]
[ "Depresivni poremećaj (DP) je multifaktorijalno oboljenje, široko rasprostranjeno u svetu, i rasvetljavanje mehanizama koji su u osnovi ovog poremećaja predstavlja jedan od najvećih izazova biomedicinskih istraţivanja današnjice. Narušena funkcija hipotalamo-hipofizno-adrenalne (HHA) ose, kao i signalizacija preko glukokortikoidnog receptora (GR), čest su nalaz kod pacijenata sa DP-om. Takođe, određeni stepen disfunkcije HHA ose i samog GR-a uočavaju se i kod zdravih ljudi i pretpostavlja se da to predstavlja jedan od faktora rizika za razvoj kliničke depresije. S druge strane, uspešno lečenje pacijenata sa depresijom, praćeno je normalizacijom aktivnosti HHA ose i funkcije GR-a. GR je ligand-zavisan transkripcioni faktor, koji nakon vezivanja glukokortikoida (krajnjih produkata aktivnosti HHA ose) prelazi iz citoplazme u jedro gde reguliše ekspresiju velikog broja gena. Vaţan način regulacije funkcije GR-a postiţe se njegovom fosforilacijom koja je posredovana aktivnošću kinaza, koje se aktiviraju u odgovoru na različite ćelijske signale. Fosforilacija GR-a na serinu 211 (S211) stimuliše ulazak receptora u jedro i generalno se smatra biomarkerom njegove povećane transkripcione aktivnosti, dok je za fosforilaciju GR-a na serinu 226 (S226), koja je posredovana c-Jun N-terminalnim kinazama (eng. c-Jun N-terminal kinases, JNK), pokazano da inhibira njegovu transkripcionu aktivnost i stimuliše izlazak GR-a iz jedra u citoplazmu. Među genima stimulisanim glukokortikoidima su GILZ (eng. glucocorticoid-induced leucine zipper, GILZ), vaţan posrednik anti-inflamatornih efekata GR-a, i FKBP5 (eng. FK506 binding protein 5, FKBP5), koji ima vaţnu ulogu u ograničavanju glukokortikoidne signalizacije u ćeliji, sprečavajući translokaciju GR-a iz citoplazme u jedro..." ]
[ "Major depressive disorder (MDD) is a multifactorial illness that a ffects people across the globe and u derstanding mechanisms underlying this disorder represents a major challenge of biomedical research today. One of the most consistent findings among patients with MDD is dysfunctional hypothalamic – pituitary – adrenal (HPA) axis, caused by altered function of the glucocorticoid receptor (GR). In healthy population, individuals with impaired HPA axis and GR function are also observed, and these features are believed to represent increased risk factors for depression . On the o ther hand, successful antidepressant treatments ameliorate many of the neuroendocrine disturbances observed in depression . The GR is ligand - activated transcriptional factor that apon glucocorticoid binding (glucocorticoids are end products of HPA axis acti vity) translocate from the cytoplasm to the nucleus where it modulates the expression of wide variety of genes. Phoshor y lation of the GR, mediated by activity of diverse cellular kinases, is imprtant way of regulating GR function. The GR phosphorylation at S211 promotes GR translocation to the nucleus and enhances its transcriptional activity , while GR phosphorylation at S226, mediated by c - Jun N - terminal kinases (JNK), inhibits its transcriptional activity and promotes GR nuclear export. Some of m yriad of genes whose expression is stimu late d by the GR are glucocorticoid - induced leucine zipper (GILZ), an important mediator of glucocorticoid anti - imflamatory actions, and FK506 binding protein 5 (FKBP5), which is a part of an intracellular ultra - short negative feedback loop for GR activity..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41029/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "depresivni poremećaj", "anksioznosti i stresa kod zdravih ljudi", "fosforilacija glukokortikoidnog receptora", "JNK", "FKBP5", "GILZ", "simptomi depresije" ]
[ "major depressive disorder", "anxiety and stress in healthy subjects", "phosphorylation of glucocorticoid receptor", "JNK", "GILZ", "FKBP5", "symptoms of depression" ]
[ "Analiza fosforilacije glukokortikoidnog receptora u limfocitima zdravih ljudi i pacijenata sa akutnom epizodom depresivnog poremećaja", "Analysis of lymphocyte glucocorticoid receptor phosphorylation in healty subjets and patients with current episode of depressive disorder" ]
[ "" ]
doctoralThesis
[ "BY" ]
Aджић, Мирослав; Савић, Данка; Радојчић, Марија; Матић, Гордана; Марић-Бојовић, Нађа; Лукић, Ива С.; Aнализа фосфорилације глукокортикоидног рецептора у лимфоцитима здравих људи и пацијената са акутном епизодом депресивног поремећаја; Aнализа фосфорилације глукокортикоидног рецептора у лимфоцитима здравих људи и пацијената са акутном епизодом депресивног поремећаја;
[ "https://nardus.mpn.gov.rs/bitstream/id/2011/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2011/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2092" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2075
123456789-2075.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3594/bdef:Content/download
no
Citogenetička, palinološka i filogeografska istraživanja roda Ramonda (Gesneriaceae) na Balkanskom poluostrvu
Cytogenetics, palynology and phylogeography of genus Ramonda (Gesneriaceae) in the Balkan peninsula
[ "Stevanović, Vladimir" ]
[ "Siljak-Yakovlev, Sonja", "Stevanović, Branka", "Niketić, Marjan" ]
Lazarević, Maja R.
2016-01-05T11:46:38
[ "2016-01-05T11:46:38", "2020-07-03T08:09:13" ]
2012-08-12
[ "https://nardus.mpn.gov.rs/handle/123456789/2075", "http://eteze.bg.ac.rs/application/showtheses?thesesId=97", "https://fedorabg.bg.ac.rs/fedora/get/o:3594/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=42098447" ]
[ "Familija Gesneriaceae obuhvata biljne vrste pretežno rasprostranjene u tropskim u subtropskim oblastima Starog i Novog sveta. Samo mali broj vrsta naseljava umerene oblasti, a među njima je i jedinih 5 vrsta ove familije u Evropi: Ramonda myconi, endemit Pirinejskog poluostrva, kao i R. nathaliae, R. serbica, Haberlea rhodopensis i Jankaea heldreichii, četiri endemične vrste Balkanskog poluostrva. Svih pet vrsta su relikti Tercijera, vremena kada je klima u Evropi bila toplija i vlažnija. Za vreme Ledenog doba, one su našle skrovište u klisurama i kanjonima gde ih najčešće nalazimo i danas. Ovi „živi fosili“ danas nepovoljne uticaje spoljašnje sredine u velikoj meri preživljavaju zahvaljujući poikilohidričnosti, pa se još nazivaju i „biljke koje vaskrsavaju“. Danas se dve balkanske vrste roda Ramonda odlikuju disjunktnim arealima. Ramonda nathaliae zastupljena je u Makedoniji, S Grčkoj, na obroncima planine Šare na Kosovu i u JI Srbiji. Najveći deo areala vrste R. serbica nalazi se u Albaniji, a prisutna je i na SZ Grčke, u Z Makedoniji, JZ i SI Crnoj Gori, JZ, JI i SI Srbiji, kao i na SZ Bugarske. Jedina zona u kojoj se areali dve vrste susreću nalazi se u JI Srbiji, gde na dva lokaliteta, Oblik i Radovanski Kamen, obrazuju simpatrijske populacije. Obe vrste prevashodno naseljavaju krečnjačku podlogu, s tim što se R. nathaliae može naći i na serpentinitu, škriljcima i granitu. Ova vrsta, takođe, bolje podnosi otvorenija staništa, a njene populacije se mogu naći i na većem rasponu nadmorskih visina, zbog čega se smatra otpornijom i tolerantijom. Ciljevi ovog rada su višestruki: da se utvrde morfološke osobine polena i semena sve tri vrste roda Ramonda, jer detalji njihove građe do sada nisu istraživani; da se procene vijabilnost njihovog polena i klijavost semena; da se utvrdi broj hromozoma, kao i veličina genoma kod tri vrste; da se proveri da li postoje hibridne jedinke u simpatrijskim populacijama; da se pomoću molekularnih markera utvrdi stepen sličnosti i filogeografske veze između vrsta R. nathaliae i R. serbica. U tu svrhu, polen i seme analizirani su pomoću svetlosnog i scanning elektronskog mikroskopa, broj hromozoma određen je standardnim kariološkim tehnikama, veličina genoma procenjena je pomoću protočne citometrije, a genetički diverzitet primenom molekularne AFLP tehnike..." ]
[ "Family Gesneriaceae comprises plant species mostly distributed in the tropics and subtropics of both the Old and New Worlds. Only a small number of species inhabits temperate regions. Among them, there are the only 5 species of this family in Europe: Ramonda myconi, endemic of the Iberian Peninusla, as well as R. nathaliae, R. serbica, Haberlea rhodopensis i Jankaea heldreichii, four endemic species of the Balkan Peninsula. All five species are Tertiary relicts, remnants from the times when the climate was much warmer and more humid. During the Ice Age, they have found shelter in canyons and gorges where can be often found today as well. These „living fossils“ are poikilohydric, „resurrection plants“ what helps them survive the inhospitable environmental conditions. Balkan species of the genus Ramonda are today characterized by disjunct distribution. Ramonda nathaliae is restricted to Macedonia, N Greece, slopes of Mt. Šara in Kosovo and few localities in SE Serbia. The largest part of the R. serbica range is situated in Albania, but is also present in NW Greece, W Macedonia, SW and NE Montenegro, SW, SE and NE Serbia and NE Bulgaria. The ranges of two species cooccur only in two localities in SE Serbia, Oblik and Radovanski Kamen, establishing sympatric populations. Both species prefer limestone rocks, but R. nathaliae can also be found on serpentine, schist and granite. This species is often found in more open habitats and in higher altitudes why it is considered as more resistant and tolerant than R. serbica. The aims of this study are: to investigate morphology of both pollen and seeds of three Ramonda species; to estimate pollen viability and germination capacity of their seeds; to determine chromosome numbers and genome size of three species; to explore if there are hybrids in sympatric populations; to look into genetic diversity and phylogeography of R. nathaliae and R. serbica. Pollen grains and seeds were examined by light and scanning electron microscopy, chromosome number by standard karyological techniques, genome size was estimated by flow cytometry and genetic diversity by molecular AFLP method..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173030/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Ramonda", "Gesneriaceae", "endemiti", "relikti", "Balkan", "poliploidija", "hibridi", "citometrija", "AFLP" ]
[ "Ramonda", "Gesneriaceae", "endemics", "relicts", "Balkan", "polyploidy", "hybrids", "cytometry", "AFLP" ]
[ "Citogenetička, palinološka i filogeografska istraživanja roda Ramonda (Gesneriaceae) na Balkanskom poluostrvu", "Cytogenetics, palynology and phylogeography of genus Ramonda (Gesneriaceae) in the Balkan peninsula" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Стевановић, Владимир; Стевановић, Бранка; Никетић, Марјан; Сиљак-Yаковлев, Соња; Лазаревић, Маја Р.; Цитогенетичка, палинолошка и филогеографска истраживања рода Рамонда (Геснериацеае) на Балканском полуострву; Цитогенетичка, палинолошка и филогеографска истраживања рода Рамонда (Геснериацеае) на Балканском полуострву;
[ "https://nardus.mpn.gov.rs/bitstream/id/2039/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2039/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2075" ]
10.2298/bg20120812lazarevic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2116
123456789-2116.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7136/bdef:Content/download
no
Strukturne i funkcionalne promene paraštitastih žlezda i bubrega nekon primene steroida, izoflavona i kalcijuma u animalnom modelu andropauze
Structural and functional changes of parathyroid glands and kidneys after treatment with steroids, isoflavones and calcium in an animal model of the andropause
[ "Filipović, Branko" ]
[ "Čakić-Milošević, Maja", "Milošević, Verica", "Šošić-Jurjević, Branka", "Ajdžanović, Vladimir" ]
Živanović, Jasmina B.
2016-01-05T11:47:41
[ "2016-01-05T11:47:41", "2020-07-03T08:09:53" ]
2013-12-12
[ "https://nardus.mpn.gov.rs/handle/123456789/2116", "http://eteze.bg.ac.rs/application/showtheses?thesesId=805", "https://fedorabg.bg.ac.rs/fedora/get/o:7136/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44659727" ]
[ "Postepeno smanjenje koncentracije testosterona u cirkulaciji tokom procesa starenja, koje je u čvrstoj vezi sa povećanom učestalošću nastanka kardiovaskularnih oboljenja, benignih i malignih oboljenja prostate i osteoporoze, označava se kao andropauza. Terapije steroidnim hormonima, kao i konvencionalna terapija Vit D i kalcijumom, koje se primenjuju u prevenciji i tretmanu menopauzalnih i andropauzalnih simptoma kod oba pola, ispoljavaju i neželjena dejstava i povećavaju rizik od nastanka kardiovaskulanih oboljenja, hiperfosfaturije, hipertrofije prostate benignog karaktera, kancera dojke i prostate. Zbog brojnih negativnih efekata primenjivanih terapija, u poslednje vreme sve je veći broj istraživanja koja teže pronalaženju rešenja sa ciljem prevazilaženja navedenih problema. Veliku pažnju privlače izoflavoni soje, genistein i daidzein, koji su predmet istraživanja brojnih studija, prvenstveno zbog svog blagotvornog efekta na simptome starenja kod oba pola. Cilj ovog istraživanja bio je rasvetljavanje dejstava steroida, izoflavona i kalcijuma na ključne regulatore homeostaze Ca2+ i Pi u animalnom modelu andropauze, i utvrđivanje njihovog potencijalnog efekta u očuvanju metabolizma minerala koji je narušen tokom procesa starenja. Mužjaci pacova Wistar soja, starosti 15 meseci, su orhidektomisani (Orx) i lažno operisani (SO) u ketaminskoj anestaziji (15 mg/kg b.w.). Dve nedelje nakon operacije Orx životinje su podeljene u eksperimentalne grupe (n=8), kojima su subkutano aplikovani testosteron-propionat (5mg/kg t.m.; TP), estradiol-dipropionat (0.625 mg/kg t.m.; EDP), vitamin D (50 μg/kg t.m.; Vit D), genistein (30 mg/kg t.m.; G), daidzein (30 mg/kg t.m.; D) i intramuskularno kalcijum (28.55 mg/kg t.m.; Ca), svakog dana tokom 3 nedelje. Svaka tretirana grupa je imala svoje kontrolne SO i Orx grupe za poređenje, kojima je aplikovan odgovarajući volumen adekvatnog rastvarača. Tokom izvođenja eksperimenta, životinjama su bile slobodno dostupne voda i laboratorijska hrana, koja nije sadržala sastojke soje ni leguminoza, sa kazeinom kao izvorom proteina. Životinje su dekapitovane 24h nakon poslednjeg tretmana, paraštitaste žlezde i levi bubrezi su izolovani, izmereni i pripremljeni za tehnike svetlosne i elektronske mikroskopije, dok su desni bubrezi zamzrnuti u tečnom azotu i čuvani na -80˚C do korišćenja i izolacije RNK..." ]
[ "Andropause is defined as a gradual decline of serum testosterone concentration during ageing, which is related to an increased incidence of cardiovascular diseases, benign and malignant prostate diseases and osteoporosis. Using steroid hormones, as well as vitamin D and calcium in the treatment of osteoporosis and other ageing symptoms, in both genders, have some undesirable side effects, such as increased risk of cardiovascular diseases, hyperphosphaturia and prostate cancer.Taking into account the potentially harmful aspects of the hormone replacement therapy, an increasing emphasis is placed on the alternative, plant-originated therapeutics for osteoporosis. Accumulating evidence suggests that soy isoflavones may represent a promising alternative remedy for aging symptoms in both genders. This study aimed to examine the effects of steroids, isoflavones and calcium on the structural and functional changes in parathyroid glands and specific functional proteins in the kidney tubules, responsible for Ca and Pi regulation, in an animal model of the andropause, and to determine their potential impact in the preservation of mineral metabolism impaired with ageing. Fifthteen-month-old Wistar rats were orchidectomised (Orx) or sham (SO) operated under ketamine anesthesia. After 2 weeks of recovery, Orx animals were divided into experimental groups and treated subcutaneously with testosterone-propionate (5 mg/kg b.w.; TP), estradiol-dipropionate (0.625 mg/kg b.w.; EDP), vitamine D (50 μg/kg b.w.; Vit D), genistein (30 mg/kg b.w.; G), daidzein (30 mg/kg b.w.; D) or calcium intramuscularly (28.55 mg/kg b.w.; Ca) every day, for 3 weeks. Every treated group had a coresponding SO and Orx control groups treated with the proper amount of vehicle, following the same regime. Animals were fed a soy-free diet with corn oil as the fat source. The rats were decapitated 24h after the last injection, parathyroid glands and left kidneys were excised, their weight was measured and they was processed for light and electron microscopic examinations. Techniques of histochemical staining and immunohistochemical labeling, transmission electron microscopy, and stereological analyses were performed. Gene expression levels were determined with Real-time PCR..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173009/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "andropauza", "steroidi", "izoflavoni", "kalcijum", "paraštitastežlezde", "NaPi 2a", "PTH1R", "FGFR", "Klotho receptor" ]
[ "andropause", "steroids", "isoflavones", "calcium", "parathyroid gland", "NaPi 2a", "PTH1R", "FGFR", "Klotho receptor" ]
[ "Strukturne i funkcionalne promene paraštitastih žlezda i bubrega nekon primene steroida, izoflavona i kalcijuma u animalnom modelu andropauze", "Structural and functional changes of parathyroid glands and kidneys after treatment with steroids, isoflavones and calcium in an animal model of the andropause" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Филиповић, Бранко; Шошић-Јурјевић, Бранка; Чакић-Милошевић, Маја; Милошевић, Верица; Aјджановић, Владимир; Живановић, Јасмина Б.; Структурне и функционалне промене параштитастих жлезда и бубрега некон примене стероида, изофлавона и калцијума у анималном моделу андропаузе; Структурне и функционалне промене параштитастих жлезда и бубрега некон примене стероида, изофлавона и калцијума у анималном моделу андропаузе;
[ "https://nardus.mpn.gov.rs/bitstream/id/2195/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2195/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2116" ]
10.2298/bg20131212zivanovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2133
123456789-2133.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7291/bdef:Content/download
no
Modulacija apoptotskih signalnih puteva u ćelijama mozga odraslih pacova nakon hroničnog tretmana deksametazonom
Modulation of apoptotic signaling pathways in brain cells of adult male rats after chronic dexamethasone treatment
[ "Horvat, Anica" ]
[ "Nedeljković, Nadežda", "Stojiljković, Mirjana", "Kataranovski, Milena", "Veličković, Nataša" ]
Drakulić, Dunja R.
2016-01-05T11:47:59
[ "2016-01-05T11:47:59", "2020-07-03T08:10:09" ]
2013-06-28
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=886", "https://nardus.mpn.gov.rs/handle/123456789/2133", "https://fedorabg.bg.ac.rs/fedora/get/o:7291/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024574898" ]
[ "Deksametazon, jak sintetski glukokortikoid, se dugi niz godina koristi kao lek u tretmanu različitih bolesti poput psorijaze, adrenalne insuficijencije, bakterijalnog meningitisa, moždanih trauma, šloga, alergija, spazma bronhija, reumatidnog artritisa, itd; ali i kao pomoćni lek u hemo- i radioterapiji. Brojne studije ukazuju da deksametazon može regulisati sinaptičku plastičnost, povećati vijabilnost ćelija i njihovu proliferaciju u in vivo i in vitro uslovima. Međutim, uprkos širokoj primeni u terapijske svrhe primećeno je da deksametazon ispoljava i niz negativnih efekata u mozgu, na primer apoptozu u granularnom sloju dentatnog girusa hipokampusa kod mladih i starih pacova, kao i smanjenje kognitivnih funkcija i motornog razvoja. Usled neusklađenosti rezultata mnogih studija, proučavanje sistemskih efekata, kao i efekata deksametazona u mozgu predstavljaju interesantno polje istraživanja prvenstveno jer se efekti niskih doza ovog sintetskog glukokortikoida ne mogu ispitivati centralno usled blokiranja njegovog ulaska dejstvom MDR p-glikoproteina i/ili nekim drugim mehanizmom. Stoga, za potrebe eksperimenta, odrasli mužjaci pacova Wistar soja su podeljeni u dve grupe– kontrolne jedinke i životinje tretirane deksametazonom (100 g/kg/dan) tokom 7 uzastopnih dana. 28 h nakon završetka hroničnog tretmana životinje su žrtvovane. Sistemski efekat deksametazona je praćen promenom biometrijskih parametara (telesna masa, masa timusa i nadbubrežnih žlezdi), kao i koncentracije kortikosterona u serumu i moždanom tkivu. Kako bi se utvrdilo da li male doze deksametazona dovode do apoptoze u hipofizi, hipotalamusu, hipokampusu i prečeonoj kori korišćen je DNK fragmentacioni esej, dok se metodama histološkog bojenja hipokampusa i prečeone kore (fluoro-jade B i krezil ljubičastim) istraživao obim neuralne smrti i morfološke promene. Western blot i RT-PCR analizama su ispitivane promene u ekspresiji proteina i iRNK markera procesa smrti odnosno preživljavanja ćelija. Rezultati ove studije su pokazali da hroničan tretman malim dozama deksametazona uzrokuje hipoaktivnost hipotalamo-hipofizno-adrenalne ose, koja se ogleda u smanjenju telesne mase, mase timusa i nadbubrežnih žlezdi, kao i kortikosterona u serumu..." ]
[ "For many years, dexamethasone, a potent synthetic glucocorticoid, has been used as a medication in the treatment of psoriasis, adrenal insufficiency, bacterial meningitis, brain trauma, stroke, allergies, bronchial spasm, rheumatoid arthritis, etc., and as a co-medicament in chemo- and radiotherapy. Numerous studies suggest that dexamethasone is able to regulate synaptic plasticity, enhance cell viability and proliferation in vivo and in vitro. However, dexamethasone exerts a number of adverse reactions in the brain, such as apoptosis in the hippocampal granular layer of dentate gyrus in young and old rats, as well as reduced cognitive and motor development. The dexamethasone-induced systemic effects and dexamethasone-provoked effects in the brain are an interesting field of research, mainly because the effects of low-dose dexamethasone treatment could not be tested directly in brain tissue due to the central blocking action of MDR p-glycoprotein and/or some other mechanism. Therefore, for the purposes of the experiment, adult male Wistar rats were divided into two groups – controls and animals treated with dexamethasone (100 g/kg/day) per 7 days. 28 h upon chronic treatment, rats from both groups were sacrificed. Late systemic effects of dexamethasone were monitored by alterations of biometric parameters (body weight, thymus and adrenal glands mass) and level of corticosterone in serum and brain tissue. Further, using DNA fragmentation assay, present study aimed to determine whether low dose dexamethasone treatment is able to cause apoptosis in the pituitary gland, hypothalamus, hippocampus and prefrontal cortex, while histological staining methods (fluoro-jade B and cresyl violet staining) were applied to investigated the extent of neuronal death and morphological changes in hippocampus and prefrontal cortex. Changes in protein and mRNA expression of cell death and cell survival markers were examined by Western blot and RT-PCR analyzes. The results obtained in this thesis revealed that chronic low dose dexamethasone treatment caused hypoactivity of hypothalamus-pituitary-adrenal axis, reflected in the reduction of body weight, thymus and adrenal glands masses, as well as levels of corticosterone in serum...." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41014/RS//", "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173044/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "deksametazon", "mozak", "apoptoza/preživljavanje", "pacov" ]
[ "dexamethasone", "brain", "cell death/survival", "rat" ]
[ "Modulacija apoptotskih signalnih puteva u ćelijama mozga odraslih pacova nakon hroničnog tretmana deksametazonom", "Modulation of apoptotic signaling pathways in brain cells of adult male rats after chronic dexamethasone treatment" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Хорват, Aница; Катарановски, Милена; Величковић, Наташа; Недељковић, Надежда; Стојиљковић, Мирјана; Дракулић, Дуња Р.; Модулација апоптотских сигналних путева у ћелијама мозга одраслих пацова након хроничног третмана дексаметазоном; Модулација апоптотских сигналних путева у ћелијама мозга одраслих пацова након хроничног третмана дексаметазоном;
[ "https://nardus.mpn.gov.rs/bitstream/id/2250/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2250/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2133" ]
10.2298/bg20130628drakulic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2111
123456789-2111.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7102/bdef:Content/download
no
Uticaj imunoglobulina sa specifičnošću značajnom za antifosfolipidni sindrom na ekspresiju karakterističnih proteina i invazivnost ekstravilusnog trofoblasta čoveka in vitro
The effect of immunoglobulins with specificity significant for antiphospholipid syndrome on expression of characteristic proteins and invasiveness of human extravillous trophoblast in vitro
[ "Vićovac-Panić, Ljiljana" ]
[ "Kataranovski, Milena", "Radojčić, Ljiljana", "Živković, Irena" ]
Kovačević, Tamara M.
2016-01-05T11:47:39
[ "2016-01-05T11:47:39", "2020-07-03T08:09:48" ]
2013-06-28
[ "https://nardus.mpn.gov.rs/handle/123456789/2111", "http://eteze.bg.ac.rs/application/showtheses?thesesId=785", "https://fedorabg.bg.ac.rs/fedora/get/o:7102/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024579762" ]
[ "Antifosfolipidni sindrom (APS) je autoimunsko oboljenje koje klinički karakteriše ponavljana pojava tromboze i/ili poremećaji u trudnoći, a serološki prisustvo antifosfolipidnih antitela (aPL). Prisustvo aPL predstavlja najčešći stečeni faktor rizika za gubitak trudnoće i komplikacije u trudnoći. Smatra se da je glavni antigen u APS β2- glikoprotein I (β2GPI), evolutivno konzerviran protein, koji je po sekvenci i konformaciji sličan velikom broju proteina mikrobskog porekla. Do nedavno se smatralo da su tromboza i inflamacija u placenti najznačajniji mehanizmi kojima aPL ostvaruju patološki uticaj na tok i ishod trudnoće, ali novija saznanja ukazuju da aPL antitela direktno utiču na proces placentacije. U ovom radu je ispitivan uticaj imunoglobulina sa specifičnošću značajnom za antifosfolipidni sindrom na ekstravilusni trofoblast čoveka in vitro. Studija je obuhvatila ispitivanje efekata poliklonskih aPL koja su prečišćena iz seruma pacijenata sa APS i monoklonskog antitela 26 (MAb 26) prema tetanus toksoidu, koje poseduje i specifičnost prema β2GPI. Time je omogućeno bolje razumevanje uloge heterogene populacije aPL koja je prisutna u serumu pacijenata, kao i antitela jasno definisane specifičnosti prema β2GPI u procesima koji dovode do defektne placentacije. Ispitivanjem in vitro uticaja imunoglobulina sa specifičnošću značajnom za APS na invazivnost ekstravilusnog trofoblasta čoveka, testom ćelijske invazije u Matrigel, pokazano je da aPL+ IgG i MAb 26 smanjuju invazivnost trofoblasta. Uočeni efekat nije bio posledica smanjene vijabilnosti i proliferacije ćelija, niti povećane apoptoze. Oba ispitivana antitela su uticala na ekspresiju karakterističnih proteina koji imaju ulogu u ćelijskoj invazivnosti. Efekat aPL+ IgG na trofoblastnu invaziju je posredovan inhibitornim delovanjem na matriksnu metaloproteinazu (MMP)-9, integrinske subjedinice α1, α5 i β1 i sekretovani galektin-1, dok MAb 26 svoje efekte ostvaruje inhibitornim delovanjem na MMP-2 i -9, α1 subjedinicu integrina i galektin-1. Vezivanje aPL+ IgG i MAb 26 za ekstravilusnu trofoblastnu ćelijsku liniju HTR-8/SVneo, kao i vezivanje MAb 26 za citotrofoblast (CT) izolovan iz placente prvog trimestra, je potvrđeno imunocitohemijskom analizom. Ispitivana antitela se vezuju za ćelije trofoblasta i u odsustvu egzogenog β2GPI i drugih faktora prisutnih u fetalnom telećem serumu, ukazujući na ekspresiju endogenog β2GPI ili još uvek nedefinisanog receptora koji bi mogao da direktno vezuje antitela..." ]
[ "Antiphospholipid antibody syndrome (APS) is an autoimmune multisystemic disorder clinically characterized by recurrent thrombosis and pregnancy morbidity, and presence of antiphospholipid antibodies (aPL) in sera of affected individuals. Presence of aPL is the most common acquired risk factor for pregnancy loss and pregnancyrelated complications. Main antigen in APS is β2-glycoprotein I (β2GPI), an evolutionarily conserved protein, which shows similarity in sequence and conformation with a number of microbial proteins. Until recently, thrombosis and inflammation were thought to be the main aPL related mechanisms leading to complications in pregnancy. More recent findings, however, indicate that aPL can exert direct effects of on placentation. This research was conducted to investigate the effects of immunoglobulins with specificity significant for APS on human extravillous trophoblast in vitro. The study included polyclonal aPL derived from APS patients (aPL+ IgG) and monoclonal antibody 26 (MAb 26) raised to tetanus toxoid with additional β2GPI specificity, originating from conformational similarity between tetanus toxoid and β2GPI. Effects of immunoglobulins with specificity important for APS on human extravillous trophoblast invasion in vitro were investigated using Matrigel invasion assay. The test showed that both aPL+ IgG and MAb 26 induce a decrease in trophoblast invasiveness, which did not result from a change in cell viability, proliferation, or apoptosis. Both antibodies, however, did affect the expression of characteristic proteins that are known to act as mediators of cell invasion. The aPL+ IgG induced decrease in trophoblast invasiveness was accompanied by reduction in matrix metalloproteinase (MMP)-9, integrin subunits α1, α5 and β1, and in levels of secreted galectin-1. Similarly, the inhibitory effect of MAb 26 on trophoblast invasion was accompanied by a decrease in MMP-2 and -9, integrin subunit α1, and galectin-1 expression. Immunocytochemistry revealed binding of both aPL+ IgG and MAb 26 to extravillous trophoblast cells. The observed binding was persistent in the absence of exogenous β2GPI and other factors derived from fetal calf serum used for cell culture. That implies expression of endogenous β2GPI, or putative receptor(s) that can bind aPL directly..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173004/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "antifosfolipidna antitela", "anti-β2-glikoprotein I antitela", "β2-glikoprotein I", "antifosfolipidni sindrom", "placenta", "molekulska mimikrija", "izolovani citotrofoblast", "HTR-8/SVneo", "ćelijska invazija", "internalizacija" ]
[ "antiphospholipid antibodies", "anti-β2-glycoprotein I antibodies", "β2- glycoprotein I", "antiphospholipid syndrome", "placenta", "molecular mimicry", "isolated cytotrophoblast", "HTR-8/SVneo", "cell invasion", "internalization" ]
[ "Uticaj imunoglobulina sa specifičnošću značajnom za antifosfolipidni sindrom na ekspresiju karakterističnih proteina i invazivnost ekstravilusnog trofoblasta čoveka in vitro", "The effect of immunoglobulins with specificity significant for antiphospholipid syndrome on expression of characteristic proteins and invasiveness of human extravillous trophoblast in vitro" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Вићовац-Панић, Љиљана; Радојчић, Љиљана; Живковић, Ирена; Катарановски, Милена; Ковачевић, Тамара М.; Утицај имуноглобулина са специфичношћу значајном за антифосфолипидни синдром на експресију карактеристичних протеина и инвазивност екстравилусног трофобласта човека ин витро; Утицај имуноглобулина са специфичношћу значајном за антифосфолипидни синдром на експресију карактеристичних протеина и инвазивност екстравилусног трофобласта човека ин витро;
[ "https://nardus.mpn.gov.rs/bitstream/id/2172/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2172/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2111" ]
10.2298/bg20130628kovacevic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2104
123456789-2104.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7070/bdef:Content/download
no
Aktivnost komponenti adenozinskog signalnog sistema astrocita u modelu moždane povrede in vivo i in vitro
Activity of the astrocytes' adenosine signaling system components in model of traumatic brain injury in vivo and in vitro
[ "Bjelobaba, Ivana" ]
[ "Nedeljković, Nadežda", "Stojiljković, Mirjana", "Isaković, Aleksandra", "Laketa, Danijela" ]
Parabucki, Ana
2016-01-05T11:47:29
[ "2016-01-05T11:47:29", "2020-07-03T08:09:43" ]
2013-12-03
[ "https://nardus.mpn.gov.rs/handle/123456789/2104", "http://eteze.bg.ac.rs/application/showtheses?thesesId=763", "https://fedorabg.bg.ac.rs/fedora/get/o:7070/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024629426" ]
[ "Glavno obeležje traumatske povrede mozga (TPM) je reaktivna astroglioza koja, između ostalog, uzrokuje i promene u signalizaciji purinima. Posebno važan aspekt purinske signalizacije u patološkim procesima centralnog nervnog sistema predstavlja dinamika promena vanćelijskih koncentracija neuroprotektora adenozina. Stoga je cilj ove doktorske teze bio ispitivanje ekspresije i funkcije komponenti adenozinskog signalnog sistema astrocita u in vivo i in vitro modelu moždane povrede, sa posebnim osvrtom na ulogu ekvilibrišućih nukleozidnih transportera (ENT). U in vivo studiji, izvedenoj na modelu ubodne lezije kore prednjeg mozga pacova, je pokazano da povreda dovodi do dinamičnih promena u ekspresiji ENT, ektonukleotidaza i adenozinskog A1 receptora. Sem toga, povreda uzrokuje i ćelijsku re-distribuciju ENT1/2 i ushodnu regulaciju transportera na reaktivnim astrocitima, što je posebno izraženo sedmog dana nakon ozlede. Uloga astrocita u orkestraciji adenozinskog signalnog sistema nakon povrede je detaljnije ispitana in vitro, nakon skarifikacije astrocitnog jednosloja. Rezultati su pokazali da skarifikacija povećava ekspresiju ENT1 i ENT2 tek u kasnijim vremenima. Bifazna promena u ekspresiji ekto-5`-nukleotidaze (e-5NT) je iskazana prvobitnim smanjenjem i potom povećanjem ekspresije u kasnijim vremenima nakon skarifikacije. Pored toga, skarifikacija astrocitnog jednosloja vodi promenama u koncentracijama adenozina i njegovih metabolita u ćelijskom medijumu. Naime, porast koncentracija adenozina u ranim vremenima nakon povrede, bio je praćen padom u kasnijim vremenima. Blokiranje ENT dipiridamolom (DPM) je dovelo do promena u koncentracijama adenozina nakon skarifikacije, ukazavši na ulogu ENT1/2 u kontroli vanćelijskih koncentracija ovog nukleozida..." ]
[ "Reactive astrogliosis is a hallmark of traumatic brain injury (TBI), which, among the others alterations, causes changes in purinergic signaling. Due to its neuroprotective features, fluctuations of adenosine extracellular concentration are particularly important aspect of purinergic signaling in brain pathology. Hence, herein given thesis aimed to investigate expression and function of astrocytes’ adenosine signaling system components after brain injury in vitro and in vivo, with special regard to the role of equilibrative nucleoside transporters (ENT). In vivo study, performed on a model of cortical stub injury of rat forebrain, showed that injury caused dynamic changes in expression of ENTs, ectonucleotidases, and adenosine A1 receptor. Moreover, injury induced cell redistribution of ENT1/2 and upregulation of transporters on reactive astrocytes, which is especially pronounced seven day after the impact. The role of astrocytes in orchestration of adenosine signaling system after the injury was examined in more details in vitro, after scratch wound injury of astrocytic monolayer. Results have shown that scarification induced upregulation of ENT1 and ENT2 in later time points. Biphasic alteration in expression of e-5NT was shown in early downregulation followed by upregulation of the enzyme in later time points after the induction of scratch wound. Beside, scarification of astrocytic monolayer caused changes in concentration of adenosine and its metabolites in extracellular medium. The rise of adenosine concentration was noted early after the injury, which was followed by drop of the concentration in later time points examined. Blocking of ENT with dipyridamole (DPM) resulted in changes of observed adenosine concentration after the scarification, pointing out that ENT1/2 have significant role in controlling extracellular concentration of this nucleoside..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41014/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "astrociti", "adenozin", "ekvilibrišući nukleotidni transporteri", "traumatska povreda mozga", "ektonukleotidaze", "ćelijska kultura", "purinska signalizacija" ]
[ "astrocytes", "adenosine", "equilibrative nucleoside transporter", "traumatic brain injury", "ectonucleotidases", "cell culture", "purinergic signaling" ]
[ "Aktivnost komponenti adenozinskog signalnog sistema astrocita u modelu moždane povrede in vivo i in vitro", "Activity of the astrocytes' adenosine signaling system components in model of traumatic brain injury in vivo and in vitro" ]
[ "" ]
doctoralThesis
[ "BY-NC-SA" ]
Бјелобаба, Ивана; Стојиљковић, Мирјана; Недељковић, Надежда; Исаковић, Aлександра; Лакета, Данијела; Парабуцки, Aна; Aктивност компоненти аденозинског сигналног система астроцита у моделу мождане повреде ин виво и ин витро; Aктивност компоненти аденозинског сигналног система астроцита у моделу мождане повреде ин виво и ин витро;
[ "https://nardus.mpn.gov.rs/bitstream/id/2152/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2152/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2104" ]
10.2298/bg20131203parabucki
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2068
123456789-2068.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3492/bdef:Content/download
no
Izolacija i karakterizacija bioaktivnih sekundarnih metabolita iz odabranih sojeva roda Streptomyces
Isolation and characterization of bioactive secondary metabolites from selected Streptomyces strains
[ "Vasiljević, Branka" ]
[ "Fira, Đorđe", "Vasiljević, Branka", "Fira, Đorđe", "Nikodinović-Runić, Jasmina" ]
Stanković, Nada N.
2016-01-05T11:46:26
[ "2016-01-05T11:46:26", "2020-07-03T08:09:06" ]
2012-12-06
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=87", "https://nardus.mpn.gov.rs/handle/123456789/2068", "https://fedorabg.bg.ac.rs/fedora/get/o:3492/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024553906" ]
[ "" ]
[ "Actinomycetes are Gram-positive soil bacteria known as producers of secondary bioactive metabolites. In the search for new bioactive compounds collection of actinomycetes from the Laboratory for Microbial Molecular Genetics and Ecology (Institute of Molecular Genetic and Genetic Engineering, University of Belgrade) was screened according to several criteria - bioactivity, the presence of the genes for polyketide synthase (PKS), pigmentation, and crude culture extracts absorption profile in ultraviolet and visible (UV/Vis) spectra. Based on these we have isolated three strains NP10, JS520, and Streptomyces durmitotensis, previously renewed for didehydroroflamicoin (DDHR) production. Isolates NP10 and JS520 were identified to belong to the genus Streptomyces. Streptomyces sp. NP10 accumulated branched chain fatty acids, predominately isopalmitic, and cyclic dipeptides consisting of proline in combination with valine, isoleucine or alanine, that have a stimulating effect on the trophoblast cell line in culture at low concentrations (1 ng/ml and 1 mg/ml) and cytotoxic effect at high concentrations (1 mg/ml). Streptomyces sp. JS520 was determined to be exceptionally good producer of pigment undecylprodigiosine (UP) with antibacterial, antifungal, antioxidant and UV protective activities showing cytotoxic effects on trophoblast cell line in culture at high concentrations (1 ng/ml). Cytotoxicity of polyene macrolide antibiotic DDHR from S. durmitotensis was confirmed and it’s antifungal effects were shown. PKS cluster responsible for DDHR synthesis was subcloned in the cosmid library and partially sequenced. Optimization of culture conditions resulted in 2.12 times increased production of UP, and 1.1 times increased production of DDHR.", "Actinomycetes are Gram-positive soil bacteria known as producers of secondary bioactive metabolites. In the search for new bioactive compounds collection of actinomycetes from the Laboratory for Microbial Molecular Genetics and Ecology (Institute of Molecular Genetic and Genetic Engineering, University of Belgrade) was screened according to several criteria - bioactivity, the presence of the genes for polyketide synthase (PKS), pigmentation, and crude culture extracts absorption profile in ultraviolet and visible (UV/Vis) spectra. Based on these we have isolated three strains NP10, JS520, and Streptomyces durmitotensis, previously renewed for didehydroroflamicoin (DDHR) production. Isolates NP10 and JS520 were identified to belong to the genus Streptomyces. Streptomyces sp. NP10 accumulated branched chain fatty acids, predominately isopalmitic, and cyclic dipeptides consisting of proline in combination with valine, isoleucine or alanine, that have a stimulating effect on the trophoblast cell line in culture at low concentrations (1 ng/ml and 1 mg/ml) and cytotoxic effect at high concentrations (1 mg/ml). Streptomyces sp. JS520 was determined to be exceptionally good producer of pigment undecylprodigiosine (UP) with antibacterial, antifungal, antioxidant and UV protective activities showing cytotoxic effects on trophoblast cell line in culture at high concentrations (1 ng/ml). Cytotoxicity of polyene macrolide antibiotic DDHR from S. durmitotensis was confirmed and it’s antifungal effects were shown. PKS cluster responsible for DDHR synthesis was subcloned in the cosmid library and partially sequenced. Optimization of culture conditions resulted in 2.12 times increased production of UP, and 1.1 times increased production of DDHR." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173048/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "bioaktivna jedinjenja", "sekundarni metaboliti", "Streptomyces", "pigmenti", "undecilprodigiozin", "izoalkanske masne kiseline", "biciklični peptidi", "Streptomyces durmitorensis", "PKS" ]
[ "bioactive compounds", "secondary metabolites", "Streptomyces", "pigments", "undecylprodigiosine", "iso-branched fatty acids", "bicyclic peptides", "Streptomyces durmitotensis", "PKS" ]
[ "Izolacija i karakterizacija bioaktivnih sekundarnih metabolita iz odabranih sojeva roda Streptomyces", "Isolation and characterization of bioactive secondary metabolites from selected Streptomyces strains" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Васиљевић, Бранка; Фира, Ђорђе; Васиљевић, Бранка; Никодиновић-Рунић, Јасмина; Фира, Ђорђе; Станковић, Нада Н.;
[ "https://nardus.mpn.gov.rs/bitstream/id/2015/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2015/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2068" ]
10.2298/bg20121206stankovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2031
123456789-2031.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2268/bdef:Content/download
no
Uticaj ishrane obogaćene ugljenim hidratima na morfološke i ultrastrukturne odlike pankreasa pacova u uslovima eksperimentalno indukovanog hipotireoidizma
The effect of carbohydrate rich diet on rat pancreas morphological and ultrastructural characteristics in experimentally induced hypothyroidism
[ "Čakić-Milošević, Maja" ]
[ "Koko, Vesna", "Glišić, Radmila" ]
Ukropina, Mirela
2016-01-05T11:45:27
[ "2016-01-05T11:45:27", "2020-07-03T08:10:51" ]
2012-07-09
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=23", "https://nardus.mpn.gov.rs/handle/123456789/2031", "https://fedorabg.bg.ac.rs/fedora/get/o:2268/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024495026" ]
[ "Pankreas je žlezda sa egzokrinom i endokrinom funkcijom. Proizvodi njegove egzokrine komponente od vitalnog su značaja za proces varenja hrane. Endokrine ćelije pankreasa grupisane u Langerhansova ostrvca proizvode insulin i glukagon, hormone koji regulišu metabolizam pre svega ugljenih hidrata i neophodni su za održavanje optimalne koncentracije glukoze u krvi. Sekretna aktivnost pankreasa, naročito njegove endokrine komponente, pod kontrolom je kompleksnih endokrinih, parakrinih i neuralnih mehanizama. Hormoni tireoidne žlezde ključni su regulatori bazalnog metabolizma, rasta i razvića. Potrebni su za normalno funkcionisanje gotovo svih organa i organskih sistema, a njihov značaj u metabolizmu ugljenih hidrata poznat je već decenijama. Funkcije endokrinog pankreasa i tireoidne žlezde, kao i efekti koje ostvaruju njihovi hormoni, uzajamno su povezani i međusobno zavisni. U kliničkoj praksi relativno je česta koegzistencija disfunkcije tireoidne žlezde i razvoj insulinske rezistencije, koja je predvorje nastanka dijabetesa tipa 2. Ishrana bogata prostim šećerima, uz smanjen nivo fizičke aktivnosti karakteristika je savremenog načina života, naročito u industrijski razvijenijim zemljama sveta. Pri kontinuiranom unosu ugljenih hidrata pankreas radi pod povećanim opterećenjem, intenzivno proizvodeći insulin, što dugoročno gledano može dovesti do patofizioloških procesa na nivou unutarćelijskih organela i eventualno do gubitka β- ćelija, odnosno do dijabetesa tipa 2. Osnovni cilj ove teze bio je da se detaljnom analizom stekne uvid u morfofunkcionalne karakteristike pankreasa pacova pod uticajem ishrane obogaćene saharozom, u uslovima sistemskog hipotireoidizma indukovanog metimazolom. U tronedeljnom eksperimentu korišćeni su mužjaci albino pacova Wistar soja, držani pod standardnim laboratorijskim uslovima. Životinje su u odnosu na ponuđeni rastvor u vodi za piće podeljene u četiri grupe. Kontrolna grupa životinja pila je čistu česmensku vodu, hipotireoidizam je indukovan 0.02% rastvorom metimazola, dok je pankreas funkcionalno opterećen unosom 10% rastvora saharoze. Pacovi poslednje grupe pili su kombinovani rastvor metimazola i saharoze, već pomenutih koncentracija. Pankreas je na uobičajen način pripremljen za morfološku i stereološku analizu na nivou svetlosne i elektronske mikroskopije. Pored rutinskih metoda bojenja hematoksilinom i eozinom, toluidin plavim i AZAN-om, korišćene su metode imunohistohemije za detekciju insulina, glukagona, somatostatina, pankreasnog polipeptida, PDX1, α-SMA i Ki67 proteina, kao i specifično bojenje propidijum jodidom. Dobijeni rezultati pokazali su sledeće: - Tronedeljni tretman metimazolom doveo je do uspostavljanja umerenog sistemskog hipotireoidizma, nezavisno od režima ishrane. Nivoi tireoidnih hormona u cirkulaciji bili su smanjeni, a životinje su zaostajale u rastu..." ]
[ "The pancreas is a gland with both exocrine and endocrine function. The products of its exocrine component are vital to the food digestion. Its endocrine function is based on secretory action of several types of endocrine cells that cluster together to form islets of Langerhans. Some of them produce insulin and glucagon, hormones that regulate primarily carbohydrate metabolism and are essential for maintaining optimal blood glucose concentrations. Secretory action of the pancreas, especially its endocrine component, is controlled by a complex endocrine, paracrine and neural mechanisms. Thyroid hormones are key regulators of the basal metabolism, growth and development. They are necessary for normal function of almost all organs and organ systems; their importance in the metabolism of carbohydrates has been known for decades. The functions of the endocrine pancreas and thyroid gland, and effects of their hormones are mutually connected and interdependent. In clinical practice the coexistence of thyroid dysfunction and the development of insulin resistance, which is a good prognostic factor for type 2 diabetes occurrence, is relatively frequent. A diet rich in simple sugars, along with reduced physical activity is a feature of modern lifestyle in developed countries of the world. Continuous intake of carbohydrates represents a form of stress in which pancreas intensively produces insulin, which in the long term can lead to pathophysiological processes at the level of intracellular organelles, and eventually to loss of β-cells, i.e. to type 2 diabetes. The aim of this work was to gain an insight into the detailed morpho-functional characteristics of the rat pancreas under the influence of sucrose rich diet, in terms of systemic hypothyroidism induced by methimazole. The obtained results show that: - Moderate systemic hypothyroidism was established after three-week methimazole treatment, regardless of the diet. Levels of thyroid hormones in the circulation were reduced, and the animals fell behind in growth..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Pankreas", "hipotireoidizam", "saharoza", "acinusne ćelije", "β-ćelije", "svetlosna mikroskopija", "imunohistohemija", "elektronska mikroskopija", "stereologija" ]
[ "Pancreas", "hypothyroidism", "sucrose", "acinar cells", "β-cells", "light microscopy", "immunohistochemistry", "electron microscopy", "stereology" ]
[ "Uticaj ishrane obogaćene ugljenim hidratima na morfološke i ultrastrukturne odlike pankreasa pacova u uslovima eksperimentalno indukovanog hipotireoidizma", "The effect of carbohydrate rich diet on rat pancreas morphological and ultrastructural characteristics in experimentally induced hypothyroidism" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Чакић-Милошевић, Маја; Глишић, Радмила; Коко, Весна; Укропина, Мирела; Утицај исхране обогаћене угљеним хидратима на морфолошке и ултраструктурне одлике панкреаса пацова у условима експериментално индукованог хипотиреоидизма; Утицај исхране обогаћене угљеним хидратима на морфолошке и ултраструктурне одлике панкреаса пацова у условима експериментално индукованог хипотиреоидизма;
[ "http://nardus.mpn.gov.rs/bitstream/id/2395/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2395/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2031" ]
10.2298/bg20120709ukropina
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2099
123456789-2099.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:6768/bdef:Content/download
no
Analiza p53 gena i HPV infekcija u karcinomima grlića materice i jajnika
Analysis of p53 gene and HPV infection in cervical and ovarian carcinomas
[ "Savić Pavićević, Dušanka" ]
[ "Janković, Radmila", "Stamenković-Radak, Marina", "Radulović, Siniša" ]
Mališić, Emina
2016-01-05T11:47:20
[ "2016-01-05T11:47:20", "2020-07-03T08:09:38" ]
2010-10-07
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=607", "https://nardus.mpn.gov.rs/handle/123456789/2099", "https://fedorabg.bg.ac.rs/fedora/get/o:6768/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=37367567" ]
[ "Uvod: Ginekološki maligniteti predstavljaju veoma raznoliku grupu kancera, među kojima su najučestaliji karcinomi grlića materice a najsmrtonosniji karcinomi jajnika. Podaci o povezanost p53 mutacija (TP53 po HUGO nomenklaturi), polimorfizma kodona 72 i infekcije humanim papiloma virusima (HPV) sa kliničko-histopatološkim karakteristikama, nastankom ovih maligniteta, kao i odgovorom na antikancersku terapiju su kontradiktorni. Malo se zna o međusobnoj povezanosti TP53 mutacija, polimorfizma kodona 72 i HPV infekcije. Zato postoji potreba za ispitivanjem pomenutih potencijalnih biomarkera ovih maligniteta. Cilj: Ispitivanje povezanosti TP53 mutacija, polimorfnih varijanti kodona 72 i HPV infekcije sa demografskim karakteristikama, kliničko-histopatološkim karakteristikama karcinoma grlića materice i karcinoma jajnika i karakteristikama bolesnica sa ovim karcinomima, kao i ispitivanje međusobne povezanosti pomenutih potencijalnih biomarkera i njihovog uticaja na antikancersku terapiju. Materijal i metode: U radu su analizirana 53 uzorka karcinoma grlića materice i 54 uzorka karcinoma jajnika. Kontrolnu grupu činilo je 95 uzoraka briseva grlića materice žena sa urednim ginekološkim i normalnim Papa nalazom, kao i odsustvom prethodne istorije postojanja prekancerskih i kancerskih lezija ginekološke regije. DNK je izolovana metodom isoljavanja. Egzoni 4-8 TP53 gena su amplifikovani lančanom reakcijom polimeraze (PCR). Preliminarni skrining mutacija vršen je metodom konformacionog polimorfizma jednolančane DNK (SSCP), a automatskim sekvenciranjem DNK je potvrđivano prisustvo i utvrđivan tip mutacija. Polimorfizam kodona 72 TP53 gena je ispitivan analizom polimorfizma dužine restrikcionih fragmenata (RFLP). Prisustvo HPV infekcije je detektovano putem amplifikacije dela L1 virusnog gena. HPV16 i HPV18 tipovi u karcinomima grlića materice su detektovani amplifikacijom dela E7, odnosno E1 virusnih gena, dok je genotipizacija HPV u karcinomima jajnika vršena sekvenciranjem DNK. Za statističku obradu podataka korišćeni su Fišerov egzaktni, χ2 , odds ratio i Log-Rank test..." ]
[ "Introduction: Gynecological malignancies present a various group of cancers; among them the most frequent are carcinomas of cervix and the most aggressive are ovarian carcinomas. Conflicting data about correlation of TP53 mutations, codon 72 polymorphism and HPV infection with clinicopathological characteristics, the origin of these malignancies and with the response to anti-cancer therapy, as well as correlation between mentioned biomarkers, are pointing out the necessity of analysis of these biomarkers. Goal: Examination of correlation of TP53 mutations, codon 72 polymorphic variants and HPV infection with demographic features, clinicopathological characteristics of ovarian and cervical carcinomas, patient’s characteristics, as well as examination of interconnection of these biomarkers and their possible predictive values to anti-cancer therapy. Material and methods: 53 samples of cervical carcinomas and 54 samples of ovarian carcinomas were analyzed. Control group was consisted of 95 cervical smears of gynecological healthy women with normal Papa test results and without previous history of pre- and cancer lesion of gynecological region. DNA was extracted by salting-out procedure. Exons 4-8 of TP53 gene were amplified by polymerase chain reaction (PCR). Preliminary screening of mutations was done by single strand conformation polymorphism (SSCP) and automatic DNA sequencing was employed to confirm the presence and establish the type of mutation. Codon 72 polymorphism was assessed by restriction fragment-length polymorphism (RFLP). Presence of HPV infection was detected through amplification of one part of L1 viral gene. Types HPV16 and HPV18 in cervical carcinomas were detected by amplification of one part of E7 or E1 viral gene, while HPV genotyping in ovarian carcinomas were performed by DNA sequencing. Fisher exact, χ2, odds ratio and Log-Rank tests were employed for statistical analysis..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "karcinom grlića materice", "karcinom jajnika", "TP53 gen", "polimorfizam kodona 72", "HPV" ]
[ "cervical carcinoma", "ovarian carcinoma", "TP53 gene", "codon 72 polymorphism", "HPV" ]
[ "Analiza p53 gena i HPV infekcija u karcinomima grlića materice i jajnika", "Analysis of p53 gene and HPV infection in cervical and ovarian carcinomas" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Савић Павићевић, Душанка; Јанковић, Радмила; Радуловић, Синиша; Стаменковић-Радак, Марина; Малишић, Емина; Aнализа п53 гена и ХПВ инфекција у карциномима грлића материце и јајника; Aнализа п53 гена и ХПВ инфекција у карциномима грлића материце и јајника;
[ "https://nardus.mpn.gov.rs/bitstream/id/2129/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2129/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2099" ]
10.2298/bg20101007malisic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2021
123456789-2021.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:2091/bdef:Content/download
no
Genetička transformacija kičice (Centaurium erythraea Rafn.) AtCKX1 i AtCKX2 genima
Genetic transformation of Centaury (Centaurium erythraea Rafn.) using AtCKX1 and AtCKX2 genes
[ "Subotić, Angelina" ]
[ "Dragićević, Ivana", "Simonović, Ana" ]
Trifunović, Milana M.
2016-01-05T11:45:20
[ "2016-01-05T11:45:20", "2020-07-03T08:10:41" ]
2012-06-20
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=14", "https://nardus.mpn.gov.rs/handle/123456789/2021", "https://fedorabg.bg.ac.rs/fedora/get/o:2091/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=" ]
[ "Biljna vrsta Centaurium erythraea Rafn., u našem narodu poznata kao kičica, od davnina se upotrebljava kao lek za sniženje temperature i nivoa šećera u krvi, lečenje anemije, žutice i gihta, za jačanje apetita i povećanje stomačne sekrecije. Zbog poznatih lekovitih svojstava, kičica se nalazi u mnogim farmakopejama. Kao početni materijal za uspostavljanje kulture korenova in vitro korišćeni su vrhovi adventivnih korenova prosečne dužine ~10 mm koji su izolovani od sterilno dobijenih klijanaca kičice i dalje su gajeni na čvrstoj MS hranljivoj podlozi bez regulatora rastenja. Proces organogeneze u kulturi korenova kičice je spontan. Posle sedam dana gajenja u kulturi na bazalnom delu početnog eksplantata uočavaju se prve promene. Koren zadebljava i tkivo počinje da puca celom dužinom bazalnog dela. Tokom četvoronedeljnog pasaža, duž razraslog dela eksplantata, formira se veliki broj adventivnih pupoljaka. U cilju dobijanja transgenih biljaka sa sniženim nivoom endogenih citokinina, za transformaciju su korišćena dva bakterijska soja Agrobacterium tumefaciens GV3101 koji nose pBinHTX plazmid sa dva različita gena, AtCKX1 odnosno AtCKX2, koji kodiraju enzim citokinin oksidazu/dehidrogenazu (CKX). Efikasna integracija AtCKX1 gena (30% ) i AtCKX2 gena (28.2% ) određena je PCR analizom genomske DNK. U cilju što boljeg određivanja nivoa ekspresije AtCKX gena kičice prvo je bilo neophodno urađena je optimizacija PCR protokola sa prajmerima za qPCR. Ovaj postupak sastojao se u pronalaženju optimalne temperature vezivanja prajmera uz istovremenu primenu različitih aditiva odnosno pojačivača PCR reakcije. Dodavanje 5% DMSO-a u qPCR reakcije značajno je poboljšalo specifičnost amplifikacije AtCKX1 i AtCKX2 gena kičice. qRT-PCR analizom potvrđena je ekspresija AtCKX1 i AtCKX2 gena kod 50% odnosno 64% analiziranih linija. U ovom radu uspešno je pokazano da ekspresija AtCKX gena u transgenim biljkama kičice značajno utiče na metabolizam citokinina. Ključni faktor u kontroli nivoa citokinina u biljnim tkivima predstavlja CKX enzim, jedini do sada poznati enzim koji učestvuje u katabolizmu citokinina. Specifična aktivnost CKX enzima određivana je u izdancima i korenovima svih transgenih AtCKX linija. Analiza količine i sadržaja ukupnih kao i pojedinačnih grupa endogenih citokinina netransfromisanih biljaka kičice omogućila je, po prvi put, određivanje citokiniskog profila kičice in vitro..." ]
[ "Plant species Centaurium erythraea Rafn., commonly known as common centaury, has been used for centuries to cure febrile conditions, regulate blood sugar, treat anemia, jaundice and gout and to increase appetite and stimulate digestion. Because of its numerous therapeutic properties centaurii herba is officially recognized as a drug in a number of pharmacopoeias. Root tips of .10 mm average length, isolated from seedlings obtained under sterile conditions, were used as initial explants in this work. The in vitro culture of non-transformed centaury roots was established on solid half-strength MS nutrient medium without growth regulators. Organogenesis is a spontaneous process in centaury root culture. The first changes were noticeable on the basal part of the initial explants, after seven days of growth on MS medium. The root explants thickened and began to burst over the entire length of the basal part. During four weeks of subculture, a large number of adventitious buds were observed on initial explants. In order to obtain transgenic centaury plants with lowered endogenous cytokinin levels, in vitro cultivated root explants were transformed with Agrobacterium tumefaciens GV3101 bearing a pBinHTX plasmid with either AtCKX1 or AtCKX2 genes encoding isoforms of cytokinin oxidase/dehydrogenase (CKX). PCR analysis of genomic DNA confirmed the effecient integration of both AtCKX1 (30%) and AtCKX2 (28.2%) genes. In order to investigate the expression of AtCKX genes in transgenic centaury plants, an optimization of PCR protocol with qPCR primers was necessary. Optimization of PCR protocol implicated finding the optimal annealing temperature and simultaneous application of different PCR additives and enhancers. Addition of 5% DMSO significantly improved the specificity of qPCR amplification of AtCKX1 and AtCKX2 genes. qRT-PCR analysis indicated that AtCKX1 and AtCKX2 genes were expressed in 50% and 64% of the analyzed transgenic lines, respectively. In this work we clearly demonstrate a significant effect of AtCKX genes on cytokinin metabolism in transgenic centaury plants. Since CKX is the only known enzyme involved in cytokinin catabolism, it is considered a key factor in controlling the cytokinin levels in plant tissues. CKX enzyme activity was determined in shoots and in roots of all AtCKX transgenic lines. The analysis of the content of total cytokinins and individual groups of endogenous cytokinins in non-transformed centaury plants enabled, for the first time, a determination of cytokinin profile of this species in vitro..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173015/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "Centaurium erythraea Rafn.", "Agrobacterium tumefaciens", "genetička transformacija", "qRT-PCR", "AtCKX geni", "CKX aktivnost", "citokinini", "sekundarni metaboliti", "sekoiridoidi", "ksantoni" ]
[ "Centaurium erythraea Rafn.", "Agrobacterium tumefaciens", "genetic transformation", "qRT-PCR", "AtCKX genes", "CKX activity", "cytokinins", "secondary metabolites", "secoiridoids", "xanthones" ]
[ "Genetička transformacija kičice (Centaurium erythraea Rafn.) AtCKX1 i AtCKX2 genima", "Genetic transformation of Centaury (Centaurium erythraea Rafn.) using AtCKX1 and AtCKX2 genes" ]
[ "" ]
doctoralThesis
[ "BY" ]
Суботић, Aнгелина; Драгићевић, Ивана; Симоновић, Aна; Трифуновић, Милана М.;
[ "https://nardus.mpn.gov.rs/bitstream/id/2356/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2356/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2021" ]
10.2298/bg20120620trifunovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2129
123456789-2129.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7459/bdef:Content/download
no
Populaciona dinamika, ishrana i ekotoksikologija velikog kormorana Phalacrocorax carbo (Linnaeus, 1758) na Carskoj bari
Population dynamics, diet and ecotoxicology of the GreatCormorant Phalacrocorax carbo (Linnaeus, 1758) in the Carska bara marshland
[ "Krpo-Ćetković, Jasmina" ]
[ "Hegediš, Aleksandar", "Marinković, Saša", "Poleksić, Vesna", "Gačić, Zoran" ]
Skorić, Stefan
2016-01-05T11:47:57
[ "2016-01-05T11:47:57", "2020-07-03T08:10:05" ]
2013-12-10
[ "https://nardus.mpn.gov.rs/handle/123456789/2129", "http://eteze.bg.ac.rs/application/showtheses?thesesId=925", "https://fedorabg.bg.ac.rs/fedora/get/o:7459/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44658191" ]
[ "kormorana i naseljava sve kontinente izuzev Južne Amerike i Antarktika. Politipska je vrsta u okviru koje se razlikuje pet podvrsta, a Evropu naseljavaju dve: P. carbo carbo – naseljava obalu severnog Atlantika, i P. carbo sinensis – naseljava centralnu i južnu Evropu. Brojnost ove vrste konstantno raste od 70-ih godina prošlog veka. Veliki kormoran se u potpunosti hrani ribom. Rast broja kormorana širom Evrope doveo je do nezadovoljstva uzgajivača ribe i ribara, što je pokrenulo mnogobrojna istraživanja ove vrste u mnogim evropskim zemljama. U prošlosti, veliki kormoran se u Srbiji gnezdio u plavnim oblastima duž velikih reka (Obedska bara, Kovilj, Carska bara, Apatin...), ali je 60-ih i 70-ih godina prošlog veka, usled isušivanja močvara i meliorativnih radova, gotovo nestao kao gnezdarica. Sredinom 80-ih godina ponovo počinju da se formiraju kolonije velikog kormorana na području Vojvodine uz velike reke, i od tada je njegova brojnost u stalnom porastu. Početkom ovog veka počinju da se formiraju kolonije i južno od Save i Dunava. Istraživanja u okviru ove disertacije sprovedena su na području Specijalnog rezervata prirode „Carska bara“, u periodu od 2007. do 2010. godine. Brojnost gnezdeće populacije praćena je prebrojavanjem (cenzusom) aktivnih gnezda, dok je van tog perioda brojnost praćena prebrojavanjem ptica na zajedničkom noćilištu. Gnezdeća populacija je bila najbrojnija 2007. godine, kada je sastojala od 410 do 440 parova, dok je najmanja brojnost zabeležena 2010. godine, kada se gnezdilo 250 do 270 parova. Van perioda gnežđenja najveća brojnost velikih kormorana zabeležena je tokom novembra 2008. i 2009. godine (po 1950 jedinki). Ispitivanje ishrane velikih kormorana na području SRP „Carska bara“ vršeno je analizom gvalica i povraćenog želudačnog sadržaja. Ukupno je prikupljeno 587 gvalica, na osnovu kojih su identifikovani ostaci 2433 jedinke riba i 529 povraćenih riba. Registrovano je učešće 21 vrste riba u ishrani kormorana na ovom području, od čega 12 iz porodice Cyprinidae..." ]
[ "The Great Cormorant Phalacrocorax carbo (L.) is the most widely distributed species of cormorants, as it inhabits all continents with the exception of South America and Antarctica. It is a polytypic species with five subspecies. Europe is inhabited by two subspecies: nominate P. carbo carbo – which inhabits the North Atlantic coasts, and P. carbo sinensis – which inhabits Central and Southern Europe. The abundance of Great Cormorant populations is constantly increasing since 1970s. The Great Cormorant is a fish eating bird. The increase in the number of cormorants has resulted in dissatisfaction of fish farmers and fishermen, which in turn instigated numerous studies aimed at assessing their actual impact on fish in many European countries. In the past, the Great Cormorant nested in floodplain areas along the large rivers in Serbia (Obedska Bara, Kovilj, Carska Bara, Apatin, etc.). However, in the 1960s and 1970s, due to drying of wetlands and melioration, it almost disappeared as a nesting species from this region. In the mid-1980s, Great Cormorants again began to form colonies in the province of Vojvodina along large rivers and, since then, the number of Great Cormorants in Serbia is constantly increasing. At the beginning of this century, Great Cormorants started to form colonies south of the Sava and the Danube rivers. Research activities within this dissertation were conducted in the Special Nature Reserve \"Carska Bara\" during 2007-2010. The abundance of the breeding population was monitored by counting active nests (census). Outside of this period, the number was determined by counting birds at overnight roosting locations. The breeding population was the largest in 2007, when it numbered 410 to 440 pairs, and the lowest in 2010, when 250 to 270 pairs were nesting. Outside of the nesting period, the highest number of Great Cormorants was observed during November 2008 and 2009 (1950 specimens each). Examination of the diet of Great Cormorants in the SRP \"Carska Bara\" was performed by analysis of pellets and regurgitated stomach contents. A total of 587 pellets were collected, in which remains of 2433 fish specimens were identified, as well as 529 regurgitated fish..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Београду
[ "veliki kormoran", "brojnost", "ishrana", "povrede na ribama", "histopatološke promene", "teški metali i mikroelementi", "zagađenje", "Carska bara" ]
[ "Great Cormorant", "abundance", "diet", "injury to fish", "histopathological changes", "heavy metals and trace elements", "pollution", "Carska Bara" ]
[ "Populaciona dinamika, ishrana i ekotoksikologija velikog kormorana Phalacrocorax carbo (Linnaeus, 1758) na Carskoj bari", "Population dynamics, diet and ecotoxicology of the GreatCormorant Phalacrocorax carbo (Linnaeus, 1758) in the Carska bara marshland" ]
[ "" ]
doctoralThesis
[ "BY-NC" ]
Крпо-Ћетковић, Јасмина; Полексић, Весна; Маринковић, Саша; Гачић, Зоран; Хегедиш, Aлександар; Скорић, Стефан;
[ "https://nardus.mpn.gov.rs/bitstream/id/2231/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2231/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2129" ]
10.2298/bg20131210skoric
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2138
123456789-2138.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7740/bdef:Content/download
no
Diverzitet mikromiceta na objektima kulturne baštine i testiranje fungicida primenljivih u konzervaciji
Micromycetes diversity on cultural heritage objects and testing the fungicides applicable in conservation
[ "Ljaljević-Grbić, Milica" ]
[ "Vukojević, Jelena", "Lević, Jelena", "Subakov-Simić, Gordana", "Džamić, Ana" ]
Stupar, Miloš Č.
2016-01-05T11:48:04
[ "2016-01-05T11:48:04", "2020-07-03T08:10:14" ]
2013-09-30
[ "https://nardus.mpn.gov.rs/handle/123456789/2138", "http://eteze.bg.ac.rs/application/showtheses?thesesId=1057", "https://fedorabg.bg.ac.rs/fedora/get/o:7740/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=44872975" ]
[ "Cilj istraživanja doktorske disertacije je bio proučavanje biodeterioracije objekata kulturne baštine u Srbiji. Na osnovu predloga stručnih timova u institucijama za zaštitu objekata kulturne baštine izvršen je odabir istraživanih objekata i predmeta. Spomenici kulture obuhvaćeni u istraživanju bili su: crkva Svete Trojice manastira Sopoćani i crkva Svete Bogorodice manastira Gradac kod Novog Pazara, crkva Svetog Nikole u Paležu, Ajfelova prevodnica kod Bečeja, spomenik Neznanom junaku na Avali, Brankov most u Beogradu i srednjovekovni kameni stećci sa lokaliteta Mramorje i Rastište kod Perućca. Opservacijom in situ opisani su simptomi biodeterioracije: pojava biopatine, izmenjena tekstura kamene površine, fenomen „biopitting“ i drugi. Sa mesta sa vidljivim simptomima biopatine izvršeno je uzorkovanje fragmenata biofilma adhezivnom trakom sa kamenog supstrata. Direktnim posmatranjem fototrofne komponente biofilma, svetlosnim mikroskopom, identifikovane su prisutne cijanobakterije i alge, uzročnici različite obojenosti supstrata. Crvena biopatina na fasadi crkve svete Bogorodice je posledica prisusutva kolonija Gloeocapsa sanguinea (C.Agardh) Kützing dok je Trentepohlia aurea (Linnaeus) C.F. P. Martius izazvala pojavu narandžaste biopatine na istom objektu. Crna katranasta biopatina na Ajfelovoj prevodnici je posledica prisusutva kolonija Nostoc sp., dok je Haematococcus pluvialis Flotow uzročnik narandžaste bio patine na spomeniku Neznanom junaku. Cijanobakterija Oscillatoria sp. i zelena alga Cylindrocistis brebissonii (Ralfs) de Bary su uzročnici zelene biopatine na istom objektu..." ]
[ "The aim of presented PhD thesis was research of biodeterioration of cultural heritage objects in Serbia. The objects and artefacts for this study were chosen according to the recomendations of the experts in the field of cultural heritage conservation. Cultural heritage monuments chosen for this study were The Church of The Holly Trinity of the Monastery Sopoćani (Novi Pazar), The Holly Virgin Church of the Monastery Gradac (Novi Pazar), Saint Nicholas church (Palež), Eiffel’s Lock (Bečej), Monument of the Unknown Hero (Avala), bridge „Brankov most“ (Belgrade) and medieval tombstones on two localities Mramorje and Rastište (Perućac). During in situ observations of examined stone monuments clear signs of biodeterioration were observed, such as presence of biopatinas, changed texture of stone surface, biopitting and other. Biofilm fragments were sampled using adhesive tape from the stone surfaces with visible biopatinas and examined using light microscopy in order to identify cyanobacteria and algae as phototrophic components of biofilm. It was shown that causative agent of red biopatina on the facade of Holly virgin church was Gloeocapsa sanguinea (C.Agardh) Kützing colonies, while Trentepohlia aurea (Linnaeus) C.F. P. caused the orange biopatina on the same monument. Black gelationous patina on Eifel’s Lock was caused by Nostoc sp. colonies. Haematococcus pluvialis Flotow caused the orange biopatina on the Monument of the Unknown Hero..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc/4.0/" ]
Универзитет у Београду
[ "biodeterioracija", "biofilm", "mikromicete", "kulturna baština", "etarska ulja", "antifungalna aktivnost" ]
[ "biodeterioration", "biofilm", "micromycetes", "cultural heritage", "essential oils", "antifungal activity" ]
[ "Diverzitet mikromiceta na objektima kulturne baštine i testiranje fungicida primenljivih u konzervaciji", "Micromycetes diversity on cultural heritage objects and testing the fungicides applicable in conservation" ]
[ "" ]
doctoralThesis
[ "BY-NC" ]
Љаљевић-Грбић, Милица; Вукојевић, Јелена; Джамић, Aна; Субаков-Симић, Гордана; Левић, Јелена; Ступар, Милош Ч.; Диверзитет микромицета на објектима културне баштине и тестирање фунгицида применљивих у конзервацији; Диверзитет микромицета на објектима културне баштине и тестирање фунгицида применљивих у конзервацији;
[ "https://nardus.mpn.gov.rs/bitstream/id/2266/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2266/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2138" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/11741
123456789-11741.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:20719/bdef:Content/download
no
Uticaj ledenih doba na filogeografske obrasce šumskih ptica: Phylloscopus collybita, Prunella modularis i Certhia familiaris
Impact of ice ages on phylogeographic patterns of forest bird species: Phylloscopus collybita, Prunella modularis and Certhia familiaris
[ "Petrović, Anđeljko" ]
[ "Skorić, Stefan", "Plećaš, Milan" ]
Raković, Marko
2020-01-27T12:20:33
[ "2020-01-27T12:20:33", "2020-07-03T08:07:59" ]
2018-06-28
[ "https://nardus.mpn.gov.rs/handle/123456789/11741", "http://eteze.bg.ac.rs/application/showtheses?thesesId=7081", "https://fedorabg.bg.ac.rs/fedora/get/o:20719/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1025226674" ]
[ "izolaciju populacija u refugijumima za vreme glacijalnih maksimuma, i nakon toga rekolonizaciju šireg dela Evropskog kontinenta za vreme povlačenja lednika. Da bi se ova paradigma testirala, analizirani su filogenetski obrasci unutar tri šumske vrste ptica (Phylloscopus collybita, Prunella modularis i Certhia familiaris) koje su rasprostranjene širom Evroazije. Obrasci geografske varijacije jednog mitohondrijalnog i jednog nuklearnog gena su analizirani kod običnog zviždka (P. collybita). Kod običnog popića (P. modularis) u istraživanjima je korišćen jedan mitohondrijalni gen i 10 nuklearnih gena, dok kod kratkokljunog puzića (C. familiaris) tri mitohondrijalna i tri nuklearna gena. Analiza mitohondrijalnog gena kod običnog zviždka je pokazala postojanje šest filogenetskih linija koje odgovaraju postojećim podvrstama. Kod običnog popića, analize mitohondrijalnog gena, kao i analize nuklearnih gena i razgraničavanja podvrsta su ukazale na postojanje tri odvojene evolutivne linije: jedna je rasprostranjena na prostoru Pirinejskog poluostrva, druga na području Kavkaza i treća na području Apeninskog, Balkanskog poluostrva i ostatka Evrope. Kratkokljuni puzić se sastoji od dve filogenetske linije koje su se razdvojile u srednjem Pleistocenu: jedna paleoendemična koja ima alopatričko rasprostranjenje ograničeno na ostrvo Korzika i region Kavkaza i drugu, mlađu i široko rasprostranjenu, koja je prisutna u većem delu Evroazije i severnog dela Kine. Rezultati dobijeni u ovom istraživanju naglašavaju značaj glacijacija u oblikovanju evolucione istorije sve tri istraživane vrste ptica na prostoru Evroazije." ]
[ "Hewitt’s paradigm for effects of Pleistocene glaciations on European populations assumes their isolation in peninsular refugia during glacial maxima, followed by recolonization of broader Europe during interstadials. To test this paradigm, we analyzed the phylogenetic relationships within three forest bird species (Phylloscopus collybita, Prunella modularis and Certhia familiaris) which ranges includes parts of Eurasia. For Common Chiffchaff (P. collybita) the patterns of intraspecific geographic variation in one mitochondrial and one nuclear gene were analyzed, for Dunnock (P. modularis) one mitochondrial and 10 nuclear genes and for Eurasian Treecreeper (C. familiaris) three mitochondrial and three nuclear genes. Common Chiffchaff subspecies were differentiated in their mtDNA, and formed six distinct mtDNA lineages. Regarding Dunnock, mtDNA gene tree, multilocus species tree and species delimitation analyses indicate the presence of three distinct lineages: one in the Iberian refugium, one in the Caucasus refugium, and one comprising the Italian and Balkan refugia and broader Europe. Eurasian Treecreeper comprises of two lineages that diverged during the mid-Pleistocene: one palaeoendemic lineage has an allopatric range nowadays restricted to the Corsica Island and the Caucasus region whereas the second one, more recent and widespread, is distributed over most of Eurasia and in northern China. Results obtained in this study highlight the importance of glaciations in shaping the evolutionary history of these three forest bird species in Eurasia." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "filogeografija", "šumske vrste ptica", "ledeno doba", "refugijumi", "mitohondrijalni geni", "nuklearni geni", "Phylloscopus collybita", "Prunella modularis", "Certhia familiaris" ]
[ "phylogeography", "forest bird species", "ice age", "refugium", "mitochondrial genes", "nuclear genes", "Phylloscopus collybita", "Prunella modularis", "Certhia familiaris" ]
[ "Uticaj ledenih doba na filogeografske obrasce šumskih ptica: Phylloscopus collybita, Prunella modularis i Certhia familiaris" ]
[ "Impact of ice ages on phylogeographic patterns of forest bird species: Phylloscopus collybita, Prunella modularis and Certhia familiaris" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/1760/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/1761/IzvestajKomisije21593.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1760/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/1761/IzvestajKomisije21593.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_11741" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/10645
123456789-10645.pdf
yes
no
http://nardus.mpn.gov.rs/bitstream/id/35994/Disertacija.pdf
no
Razvoj tehnoloških postupaka u cilju prevencije nastanka tabanskih lezija brojlerskih pilića
Development of technological processes TI in order to prevent the occurrence of footpad lesions in broiler chickens
[ "Đukić-Stojčić, Mirjana", "Žikić, Dragan" ]
[ "Perić, Lidija", "Škrbić, Zdenka", "Stanković, Branislav" ]
Bjedov, Siniša
2019-01-18T10:40:10
[ "2019-01-18T10:40:10", "2020-07-03T13:32:56" ]
2016-04-25
[ "https://nardus.mpn.gov.rs/handle/123456789/10645", "https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija145613840932846.pdf?controlNumber=(BISIS)100034&fileName=145613840932846.pdf&id=4959&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/record.jsf?recordId=100034&source=NaRDuS&language=sr", "https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije145613841370140.pdf?controlNumber=(BISIS)100034&fileName=145613841370140.pdf&id=4960&source=NaRDuS&language=sr" ]
[ "U okviru doktorske disertacije prikazani su rezultati ispitivanja razliĉitih tehnoloških postupaka u cilju prevencije nastanka oštećenja tabanskih jastuĉića brojlerskih pilića. Istraţivanja su sprovedena u 4 ogleda i to u jednom u kome su vršena ispitivanja fiziĉko – hemijskih i higroskopnih osobina materijala koji se mogu koristiti kao prostirka, kao i tri biološka ogleda koji su imali za cilj da ispitaju uticaj razliĉitih faktora na oštećenja tabanskih jatuĉića kod brojlerskih pilića. Cilj bioloških ogleda je bio da odgovore na pitanje da li se razliĉitim tretmanima prostirke, primenom razliĉitih preparata i ishranom moţe uticati na prevenciju nastanka tabanskih lezija kod brojlerskih pilića. Pored toga, cilj ovih ogleda je bio da se utvrdi kako primenjene tehnologije utiĉu na proizvodne rezultate brojlera. Od fiziĉkih karakteristika materijala koji se mogu koristiti kao prostirka u tovu brojlera ispitivane su sposobnost vezivanja i otpuštanja vode, a od hemijskih sadrţaj suve materije, sadrţaj sirovih vlakana kao i pojedine frakcije (NDF, ADF, hemiceluoza, celuloza i lignin). Biološki ogledi su sprovedeni u objektima eksprimentalne farme (mikro ogled) i u proizvodnim uslovima (makro ogled). U biološkim ogledima kao prostirka je korišćena pšeniĉna slama, a tretmani kojima je pokušano poboljšanje njenih karakteristika su bili seckanje, kao i dodatak mikrobiološko-enzimskog preparata (Micropan Complex®) i lignina. Uticaj ishrane na oštećenja tabanskih jastuĉića ispitivan je u biološkom ogledu, ishranom brojlerskih pilića smešama sa smanjenom energijom i dodavanjem enzima koji poboljšava varenje hrane. Kao rezultat uticaja pomenutih tretmana ispitivani su kvalitet prostirke (vlaga, pH i emisija amonijaka), proizvodnih parametri u tovu brojlera (telesna masa, utošak hrane, konverzija, mortalitet i proizvodni indeks), ponašanje brojlera, kao i nastanak i stepen oštećenja tabanskih jastuĉića. Ocena oštećenja tabanskih jastuĉića je vršena makroskopski (primenom skale od 0-3, a u skladu sa zahvaćenom površinom) i mikroskopski, histološkom analizom koţe tabanskih jastuĉića. Rezultati ispitivanja fiziĉko-hemijskih karakteristika razliĉitih materijala pokazuju da pšeniĉna slama upija velike koliĉine vode, a usled niskog sadrţaja NDF slabo optušta vodu te shodno tome predstavlja loš izbor za prostirku u pogledu nastanka oštećenja tabanskih jastuĉića. MeĊutim, rezultati su pokazali da seckanje slame, kao tehnološki postupak, moţe uticati na nastanak i stepen oštećenja tabanskih jastiĉića, ali da dovodi i do povećanja telesnih masa brojlera kao i promena u ponašanju pilića. Dodatak mikrobiološko-enzimskog preparata dovodi do smanjenja pojave i stepena oštećenja tabanskih jastuĉića brojlera gajenih i na seckanoj i na nesckanoj slami. Rezultati takoĊe pokazuju da se, u proizvodnim uslovima, primenom lignina u prostirci od neseckane slame moţe smanjiti oštećenje tabanskih jastuĉića. Upotreba smeša koje sadrţe smanjene koliĉine energije uz primenu enzima dovodi do prevencije u pogledu nastanka tabanskih lezija, bez znaĉajnog uticaja na proizvodne rezultate. Histološka analiza tabanskih jastuĉića je pokazala da sistem ocenjivanja koji se zasniva na zahvaćenoj površini tabanskih jastuĉića u saglasnosti sa stepenom i ozbiljnošću oštećenja koţe tabanskih jastuĉića i da moţe predstavljati standardi model za ocenjivanje na liniji klanja. Na osnovu rezultata ove disertacije se moţe zakljuĉiti da primenjeni tehnološki postupci mogu znaĉajno uticati na prevenciju oštećenja tabanskih jastuĉića, bez negativnog uticaja na proizvodne rezultate u tovu brojlera." ]
[ "Within this dissertation, the results of various technological processes are shown in order to prevent the occurrence of damage to the foot pads of broiler chickens. The study was conducted in four trials, one in which we investigated the physical - chemical and hygroscopic properties of materials that can be used as litter, as well as three biological trials which were aimed to examine the influence of various factors on the damage to the foot pads in broiler chickens. The objective of the biological experiments was to answer the question whether the various treatments of litters, usage of different preparations and nutrition can prevent occurrence of foot lesions in broiler chickens. In addition, the aim of this experiment was to determine how the applied technology affects performance of broiler chickens. Among physical properties of materials that can be used as litter in fatting broilers, absorption and release of water were investigate, and among chemical properties there were content of dry matter, crude fiber content as well as individual fractions (NDF, ADF, hemicelluloses, cellulose and lignin). Biological experiments were conducted in the facilities of experimental farm (micro experiment) and in production conditions (macro experiment). In biological experiments wheat straw was used as litter and treatments which attempted to improve its characteristics were chopping and addition of microbial-enzyme preparation (Micropan Complex®) and lignin. Feeding influence on damage to the foot pad was tested in a biological experiment, by feeding broilers with reduced energy diet and by adding enzymes that improve digestion. As a result of the impact of the above mentioned treatments there were tested the litter quality (moisture, pH and ammonia emissions), production parameters in fattening broilers (body weight, feed consumption, conversion, mortality and production index), the behavior of broilers, as well as the onset and degree of damage to the foot pads. Assessment of the damage to the foot pads was done macroscopically (on a scale from 0-3, and according to the affected area) and microscopically, by histological analysis of skin of foot pads. Test results of physic-chemical characteristics of different materials indicate that wheat straw absorbs large amounts of water, due to the low content of NDF it releases water slowly and consequently represents a bad choice for a litter in terms of damage to the foot pads. However, the results showed that chopping straw as a technological procedure may influence the onset and degree of damage to the foot pads, but it also leads to an increase in body weight of broilers as well as changes in their behavior. Addition of microbial-enzyme preparation leads to a decrease in the occurrence and level of damage to the foot pads in broilers grown on both chopped and unchopped straw. The results have also shown that, under production conditions, using lignin in the unchopped straw litter it can reduce the damage to the foot pads. The use of mixtures containing a reduced amount of energy with the use of the enzyme leads to prevention in terms of occurrence of foot lesions, without significant impact on performance. Histological analysis of foot pads have showed that the grading system that is based on the affected area of foot pads in accordance with the extent and severity of damage of the skin of foot pads and that it can represent a model for the assessment of standards on the slaughter line. Based on the results of this dissertation it can be concluded that the applied technological procedures can significantly influence the prevention ofdamage to the foot pads, with no negative impact on production results in fattening broilers." ]
sr (latin script)
Универзитет у Новом Саду, Пољопривредни факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Новом Саду
[ "tehnologija", "brojleri", "tabanske lezije" ]
[ "Technology", "broiler", "footpad lesions" ]
[ "Razvoj tehnoloških postupaka u cilju prevencije nastanka tabanskih lezija brojlerskih pilića" ]
[ "Development of technological processes TI in order to prevent the occurrence of footpad lesions in broiler chickens" ]
doctoralThesis
[ "BY-NC-ND" ]
[ "https://nardus.mpn.gov.rs/bitstream/id/35994/Disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/35995/IzvestajKomisije.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35994/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/35995/IzvestajKomisije.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_10645" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/4179
123456789-4179.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:10340/bdef:Content/download
no
Fluktuirajuća asimetrija kao indikator sredinskog stresa u populacijama zidnog guštera (Podarcis muralis Laurenti 1768) u urbanim i ruralnim sredinama
Fluctuating asymmetry as an indicator of environmental stress in populations of the common wall lizard (Podarcis muralis Laurenti 1768) in urban and rural environments
[ "Crnobrnja-Isailović, Jelka" ]
[ "Cvetković, Dragana", "Kaliontzopoulou, Antigoni", "Ivanović, Ana", "Carretero, Miguel A." ]
Lazić, Marko M.
2020-07-03T08:11:36
[ "2020-07-03T08:11:36" ]
2015-07-09
[ "https://nardus.mpn.gov.rs/handle/123456789/4179", "http://eteze.bg.ac.rs/application/showtheses?thesesId=2371", "https://fedorabg.bg.ac.rs/fedora/get/o:10340/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=47538447" ]
[ "Uticaj sredinskog stresa na stabilnost razvića merističkih karakteristika (femoralne pore, subdigitalne lamele, supracilijarne granule) i oblika dorzalne strane glave ispitivan je poređenjem nivoa fluktuirajuće asimetrije (FA) navedenih karakteristika između populacija zidnog guštera (Podarcis muralis) koje naseljavaju urbana i ruralna staništa. Takođe, ispitano je i da li postoje razlike u nivou varijanse simetrične komponente oblika glave, alometriji simetrične komponente oblika i u nivou odstupanja od grupne alometrije između populacija koje naseljavaju ova dva tipa sredina. Pored toga, analizirano je i da li sredinski stres ima uticaja na performansu, kondicioni indeks i prevalencu i intenzitet krvnih parazita kao i da li jedinke koje su zaražene krvnim parazitima i jedinke sa niskim kondicionim indeksom pokazuju viši nivo asimetrije oblika glave. Osnovna hipoteza je bila da će populacije koje naseljavaju suboptimalne uslove životne sredine pokazivati viši nivo FA merističkih karakteristika, viši nivo FA oblika glave, viši nivo varijanse simetrične komponente oblika. Pored toga hipoteza je bila i da će postojati razlike u alometriji simetrične komponente oblika glave, nivou morfološke integracije između dva modula dorzalne strane glave između dva tipa populacija kao i veće odstupanje od grupne alometrije u urbanim populacijama. Takođe, pretpostavka je bila i da će urbane populacije pokazati veću prevalencu i intenzitet krvnih parazita, niži kondicioni indeks ali i da će inficirane jedinke i jedinke sa nižim kondicionim indeksom imati viši nivo FA oblika glave. U poređenju sa ruralnim populacijama, urbane su pokazale statistički značajno viši nivo FA za sve analizirane merističke karakteristike što ukazuje na to da je stabilnost razvića ovih karakteristika u ovoj sredini narušena. Takođe, uočeno je postojanje razlika u razvojnoj stabilnosti između analiziranih karakteristika što ukazuje na to da razvojna stabilnost može biti specifična za morfološke karakteristike. Nivo fluktuirajuće asimetrije je bio niži kod karakteristika koje su od većeg funkcionalnog značaja, što ukazuje da je kontrola razvića ovih karakteristika bila veća. Pored toga, uočeno je i da postoji značajna korelacija između FA femoralnih pora i subdigitalnih lamela što ukazuje na to da su ove karakteristike integrisane..." ]
[ "Effects of environmental disturbance on developmental stability of meristic traits (femoral pores, subdigital lamelae, supraciliar granules) and dorsal head shape were evaluated by comparing fluctuating asymmetry (FA) levels between populations of the common wall lizard (Podarcis muralis) inhabiting urban and rural areas. Moreover, possible differences in degree of head shape variation, head shape allometry and in deviation from within-group allometric lines were tested between these two population types. Also, it was analysed whether environmental disturbance affects locomotor performance, condition index, and prevalence and intensity of blood parasites but also if infected animals and animals with low body condition show higher degree of head shape asymmetry. The main hypothesis were that individuals inhabiting suboptimal environments will show higher FA degree of meristic traits and head shape as well as higher degree of head shape variance. Also, it was hypothesised that, due to stressfull conditions, there will be differences in symmetric head shape allometry, differences in the degree of morphological integration between two head modules and differences in the degree of deviation from within-group allometric lines between the two types. Moreover, higher prevalence and intensity of blood parasites and lower body condition were expected in urban populations, as well as higher head shape asymmetry in infected individuals and in individuals with low body condition. Compared to rural populations, the urban ones showed significantly higher degree of FA for all analysed meristic traits, which suggests that developmental stability of these traits is affected in urban environments. Differences in developmental stability were found between the three traits meaning that developmental stability may be trait specific. Degree of fluctuating asymmetry was lower in functionaly significant traits, suggesting that it may be under stricter developmental control. Significant correlation was found between signed FA of femoral pores and subdigital lamelae, possibly a sign of morphological integration as these traits develop in the same body part and it is likely that they share same developmental pathways..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173025/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-sa/4.0/" ]
Универзитет у Београду
[ "Podarcis muralis", "stres", "fluktuirajuća asimetrija", "kanalisanost", "morfološka integracija", "alometrija", "geometrijska morfometrija", "krvni paraziti", "kondicioni indeks", "performansa" ]
[ "Podarcis muralis", "stress", "fluctuating asymmetry", "canalisation", "morphological integration", "allometry", "geometric morphometrics", "blood parasites", "condition index" ]
[ "Fluktuirajuća asimetrija kao indikator sredinskog stresa u populacijama zidnog guštera (Podarcis muralis Laurenti 1768) u urbanim i ruralnim sredinama", "Fluctuating asymmetry as an indicator of environmental stress in populations of the common wall lizard (Podarcis muralis Laurenti 1768) in urban and rural environments" ]
[ "" ]
doctoralThesis
[ "BY-NC-SA" ]
Црнобрња-Исаиловић, Јелка; Цветковић, Драгана; Калионтзопоулоу, Aнтигони; Ивановић, Aна; Царретеро, Мигуел A.; Лазић, Марко М.; Флуктуирајућа асиметрија као индикатор срединског стреса у популацијама зидног гуштера (Подарцис муралис Лауренти 1768) у урбаним и руралним срединама; Флуктуирајућа асиметрија као индикатор срединског стреса у популацијама зидног гуштера (Подарцис муралис Лауренти 1768) у урбаним и руралним срединама;
[ "https://nardus.mpn.gov.rs/bitstream/id/2547/Marko_Lazic_referat_BF-25356.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2546/Disertacija129.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2546/Disertacija129.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2547/Marko_Lazic_referat_BF-25356.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_4179" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2069
123456789-2069.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:3566/bdef:Content/download
no
Struktura topološki zatvorene ORI sekvence dihidrofolatreduktaznog lokusa u interakciji sa inicijacionim proteinom ORC
Structure of topologically closed ORI sequence from dihydrofolate reductase locus in interaction with initiation protein ORC
[ "Kušić-Tišma, Jelena" ]
[ "Brajušković, Goran", "Brajušković, Goran", "Stefanović, Dragana", "Radojković, Dragica" ]
Tomić, Branko V.
2016-01-05T11:46:26
[ "2016-01-05T11:46:26", "2020-07-03T08:09:07" ]
2012-09-24
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=96", "https://nardus.mpn.gov.rs/handle/123456789/2069", "https://fedorabg.bg.ac.rs/fedora/get/o:3566/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024530354" ]
[ "Replikacija je jedan od osnovnih procesa u životnom ciklusu ćelije. Cilj replikacije je udvajanje genetičkog materijala. Da bi genetički materijal bio pravilno umnožen i kasnije razdvojen na ćerke ćelije, razvijen je veliki broj mehanizama regulacije replikacije. Jedan od načina regulacije je pravilan izbor i aktivacija mesta inicijacije replikacije. Broj i kompleksnost mesta inicijacije replikacije varira među vrstama. Kod evolutivno nižih eukariota su jednostavnija, dok su kod viših eukariota kompleksnija. Način prepoznavanja ovih mesta od strane inicijacionih proteina nije u potpunosti razjašnjen. Ori sekvenca, locirana nizvodno od gena DHFR (dihidrofolat reduktaza) hrčka, sadrži tri definisana ori mesta inicijacije replikacije: ori β, ori β' i ori γ. Ori β sekvenca DHFR je jak replikator i pokazuje aktivnost na ektopičnim mestima. Premda je ori sekvenca DHFR jedna od najbolje okarakterisanih ori sekvenci kod metazoa i u okviru nje definisani funkcionalno značajni regioni (AT bogati region, DNR region, BEND, RIP60 region, IR 4 bp), njihova funkcija nije u potpunosti razjašnjena. Protein ORC (eng. Origin recognition complex) je heteroheksamer odgovoran za prepoznavanje mesta inicijacije replikacije. Pretpostavka je da nekoliko elemenata ima ulogu u prepoznavanju ori sekvence od strane ORC kompleksa kod metazoa. Funkcija ljudskog proteina Orc4 (HsOrc4) do sad nije u potpunosti razjašnjena. Našim prethodnim istraživanjima, pokazali smo da HsOrc4 prepoznaje nekanonske strukture i ima sposobnost za utiče na formiranje TAT tripleksa i homoadeninskih struktura..." ]
[ "Replication is one of the fundamental processes in the life cycle of the cell. The aim of replication is a duplication of genetic material. To make genetic material properly duplicated and subsequently divided into daughter cells, a large number of mechanisms of regulation of replication have been developed. One way of regulation is the proper selection and activation of replication initiation. The number and complexity of the origins of replication (ori) varies among species. They are simpler at evolution lower eukaryotes, while in higher eukaryotes are more complex. The way of recognizing these places by initiation proteins is not fully understood. Ori sequence, located downstream of the DHFR gene (dihydrofolate reductase) hamster, contains three defined origins of replication: ori β, ori β' and ori γ. Ori β DHFR sequence is strong replicator and shows activity at ectopic places. Although the sequence of ori DHFR is one of the best characterized ori sequences in metazoans and within defined functionally important regions (AT rich region, DNR region, BEND, RIP60 region, IR 4 bp), their function is still not completely understood. ORC (Origin recognition complex) is heterohexamer protein responsible for identifying origins of replication. It is assumed that several elements play a role in recognizing ori sequences of the ORC complex in metazoans.The function of the human protein Orc4 (HsOrc4) has not been fully elucidated. Our previous studies showed that HsOrc4 recognize non-canonical structures and has the ability to influence at formation of TAT triplexes and homoadenine structures..." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "HsOrc4", "ori DHFR", "superspiralizacija", "Topoizomeraza I", "Mung Bean nukleaza" ]
[ "HsOrc4", "ori DHFR", "supercoiling", "Topoisomerase I", "Mung Bean nuclease" ]
[ "Struktura topološki zatvorene ORI sekvence dihidrofolatreduktaznog lokusa u interakciji sa inicijacionim proteinom ORC", "Structure of topologically closed ORI sequence from dihydrofolate reductase locus in interaction with initiation protein ORC" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Кушић-Тишма, Јелена; Радојковић, Драгица; Брајушковић, Горан; Брајушковић, Горан; Стефановић, Драгана; Томић, Бранко В.; Структура тополошки затворене ОРИ секвенце дихидрофолатредуктазног локуса у интеракцији са иницијационим протеином ОРЦ; Структура тополошки затворене ОРИ секвенце дихидрофолатредуктазног локуса у интеракцији са иницијационим протеином ОРЦ;
[ "https://nardus.mpn.gov.rs/bitstream/id/2019/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2019/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2069" ]
10.2298/bg20120924tomic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2106
123456789-2106.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7127/bdef:Content/download
no
Ontogenetska fenotipska plastičnost i materinski efekti tokom ranih stupnjeva razvića Iris pumila L. (Iridaceae)
Ontogenetic phenotypic plasticity and maternal effects during early stages of development in Iris pumila L.(Iridaceae)
[ "Tucić, Branka" ]
[ "Giba, Zlatko", "Stojković, Biljana" ]
Avramov, Stevan
2016-01-05T11:47:30
[ "2016-01-05T11:47:30", "2020-07-03T08:09:44" ]
2008-09-12
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=800", "https://nardus.mpn.gov.rs/handle/123456789/2106", "https://fedorabg.bg.ac.rs/fedora/get/o:7127/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=34160911" ]
[ "Prikazana su proučavanja veličine i obrazaca fenotipske plastičnosti tokom ranih faza procesa razvića biljaka kao odgovor na promenu intenziteta svetlosti, kao i doprinos materinskih faktora ekspresiji juvenilnog fenotipa. Za ovo istraživanje izabrane su dve prirodne populacije I. pumila koje su izložene različitim svetlosnim uslovima u Deliblatskoj Peščari. Eksperimentalni dizajn obuhvatao je tri svetlosna intenziteta. Istražene su tri faze juvenilnog perioda I.pumila pri čemu je na svakom klijancu izvršeno merenje većeg broja osobina. Na osnovu procena i poredjenja različitih aspekata variranja ispitivanih osobina dobijeni su sledeći zaključci: 1. Veličina i pravac fenotipskog odgovora bili su specifični za osobinu, kao i za deo primenjenog svetlosnog gradijenta. Dobijeni rezultati pokazuju da je plastičnost specifične lisne površine (SLA) najizraženiji odgovor na nizak intenzitet svetlosti; 2. Heritabilnost i genetičke korelacije kod vrste I.pumila variraju između različitih svetlosnih sredina;3. Plastičnost osobina, merena preko indeksa plastičnosti, bila je veća kod biljaka iz populacije Šuma; 4. Genotipovi I.pumila, ali i populacije, značajno su se razlikovali u ontogenetskim normama reakcije. Razlike razvojnih putanja izmedju populacija bile su manje u poređenju sa razlikama između svetlosnih tretmana; 5. Korelacije izmedju osobina značajno su se menjale tokom razvića; 6. Koeficijent materinskog efekta (m2) i koeficijent materinske varijacije (CVM) bili su specifični za osobinu i svetlosni tretman. Zavisnost ispoljavanja materinskih vanjedarnih uticaja od potomačkih sredinskih faktora pokazuje da selektivna vrednost materinskih genotipova zavisi od sredine u kojoj se odvija razviće potomaka; 7. U ranim fazama razvića I.pumila postoji značajna ontogenetska varijabilnost ispoljavanja materinskog efekta. Sa starošću klijanaca smanjuje se stepen ispoljavanja materinskih efekata. Materinske korelacije se značajno menjaju tokom ontogenije pri čemu su ove promene i sredinski zavisne." ]
[ "Study was about the size and patterns of phenotypic plasticity during the early stages of plant development in response to different light intensities, and the contribution of maternal factors expression of juvenile phenotype. For this study two natural populations of I.pumila were chosen. They were exposed to different light conditions in Deliblato sands. The experimental design consisted of three light intensities. The three phases of the juvenile period I.pumila where investigated. On each seedling a number of measurements were taken. Based on the evaluation and comparison of different aspects of the variation of plant traits the following conclusions were obtained: 1. The size and direction of phenotypic responses were specific for the trait, as well as to the part of the light gradient. The results show that the plasticity of specific leaf area (SLA) is most pronounced in response to low light intensity; 2. Heritability and genetic correlation in I. pumila vary significantly between different light environments; 3. Phenotypic plasticity, measured by the index of plasticity, was higher in plants from “Šuma” population; 4. Genotypes, as well as populations, of I.pumila, have significantly different ontogenetic reaction norms. The differences between the populations developmental pathways were lower in comparison with the differences between the light treatment; 5. Trait correlations significantly changed during development; 6. The coefficient of maternal effects (m2) and the coefficient of maternal variation (CV) were trait-specific and treatment-specific. The selective value of maternal genotype depends on the environment in which offspring development occurs; 7. In the early stages of development of I. pumila there was no significant ontogenetic variation of maternal effects. The degree of maternal effects decreased with seedlings age. Maternal correlations significantly change during ontogeny. These changes were environmentally dependent, too." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "ontogenetska fenotipska plastičnost", "materinski efekti", "razviće Iris pumila" ]
[ "ontogenetic phenotypic plasticity", "maternal effects", "development", "Iris pumila" ]
[ "Ontogenetska fenotipska plastičnost i materinski efekti tokom ranih stupnjeva razvića Iris pumila L. (Iridaceae)", "Ontogenetic phenotypic plasticity and maternal effects during early stages of development in Iris pumila L.(Iridaceae)" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Туцић, Бранка; Стојковић, Биљана; Гиба, Златко; Aврамов, Стеван; Онтогенетска фенотипска пластичност и матерински ефекти током раних ступњева развића Ирис пумила Л. (Иридацеае); Онтогенетска фенотипска пластичност и матерински ефекти током раних ступњева развића Ирис пумила Л. (Иридацеае);
[ "https://nardus.mpn.gov.rs/bitstream/id/2156/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2156/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2106" ]
10.2298/bg20080912avramov
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2113
123456789-2113.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7135/bdef:Content/download
no
Uspostavljanje rezistentnih tumorskih ćelijskih linija kao modela za testiranje novih hemioterapeutika : molekularna karakterizacija rezistencije nastale dugotrajnim izlaganjem paklitakselu
The establishing of resistant cancer cell lines as a model for testing of new chemotherapeutics: molecular characterization of resistance developed after continuous treatment with paclitaxel
[ "Radović, Svetlana" ]
[ "Pešić, Milica", "Tanić, Nikola", "Ruždijić, Sabera", "Aljančić, Ivana" ]
Podolski-Renić, Ana
2016-01-05T11:47:40
[ "2016-01-05T11:47:40", "2020-07-03T08:09:49" ]
2013-07-04
[ "https://nardus.mpn.gov.rs/handle/123456789/2113", "http://eteze.bg.ac.rs/application/showtheses?thesesId=804", "https://fedorabg.bg.ac.rs/fedora/get/o:7135/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024577970" ]
[ "Glavni uzrok neuspeha hemioterapije u lečenju kancera je pojava višestruke (engl. „multi-drug“) rezistencije (MDR). Efikasnost paklitaksela (PTX) je često ograničena pojavom rezistencije. Cilj ove doktorske disertacije je bio ispitivanje molekularnih i fenotipskih promena u toku razvoja MDR-a indukovanih PTX-om kod ćelijskih linija humanog karcinoma debelog creva (DLD1) i glioblastoma (U87). Takođe je testirana upotrebljivost dobijenih MDR modela u evaluaciji četiri anti-kancer agensa. Kontinuirani tretman PTX-om doveo je do razvoja MDR-a kod obe ispitivane ćelijske linije koje su postale rezistentne na strukturno i funkcionalno različite hemioterapeutike. Nakon potvrde prisustva ukrštene rezistencije kod novouspostavljenih ćelijskih linija DLD1-TxR i U87-TxR, analizirana je ekspresija membranskih trasportera uključenih u razvoj MDR-a na nivou iRNK. Ćelije su imale povišen nivo ekspresije mdr1 gena i smanjen nivo ekspresije mrp1 gena. Prekomerna ekspresija P-glikoproteina (P-gp), koji kodira mdr1 gen, je uočena kod obe MDR ćelijske linije. Analiza na protočnom citofluorimetru je pokazala da je akumulacija Pgp supstrata (rodamina 123 i doksorubicina) kod DLD1-TxR i U87-TxR ćelija značajno manja u poređenju sa odgovarajućim parentalnim ćelijama, DLD1 i U87. Značajno smanjenje ekspresije gst-π gena i koncentracije glutationa (GSH) je uočeno kod U87- TxR ćelija. Sekrecija vaskularnog endotelijalnog faktora rasta (VEGF) je inhibirana u jednokratnom tretmanu kod ćelijskih linija karcinoma debelog creva i u kontinuiranom tretmanu kod ćelijske linije glioblastoma. Analiza ćelijskog ciklusa je pokazala da je jednokratni tretman PTX-om kod ćelijskih linija humanog karcinoma debelog creva praćen porastom subG0 faze, odnosno povećanjem procenta mrtvih ćelija, dok je kod ćelija glioblastoma došlo do umiranja tokom interfaze (G1, S ili G2). MDR tumorske ćelijske linije su stekle nove strukturne i numerićke hromozomske aberacije. Sticanje MDR fenotipa kod U87-TxR ćelija je praćeno smanjenem jednog nivoa ploidije. Takođe je uočen gubitak hromozomskog regiona 6q kod obe rezistentne ćelijske linije, kao i inaktivacija p53 tumor spresor gena kod U87-TxR ćelija i PTEN tumor supresor gena kod DLD1-TxR ćelija." ]
[ "Multi-drug resistance (MDR) is a major obstacle to successful cancer treatment. The efficacy of paclitaxel (PTX) is often limited by appearance of drug resistance. The aim of this study was to explore molecular and phenotypic alterations during development of MDR induced by PTX in human colon carcinoma (DLD1) and glioblastoma (U87) cell lines. We also tested the usefulness of developed MDR models in the evaluation of four anti-cancer agents. Continuous treatment with PTX led to the development of MDR in both tested cancer cell lines that became resistant to structurally and functionally unrelated chemotherapeutics. After confirmation of the cross-resistance in newly established DLD1-TxR and U87-TxR, we analyzed the mRNA expression of membrane transporters involved in MDR. The cells had increased levels of mdr1 gene expression, while mrp1 was decreased. Over-expression of P-glycoprotein (P-gp), coded by mdr1, was observed in both MDR cancer cell lines. Flow cytometry analyzes showed that the accumulation of P-gp substrates (rhodamine 123 and doxorubicin) in DLD1-TxR and U87-TxR was significantly lower compared to DLD1 and U87, respectively. The significant depletion of gst-π gene expression and glutathione (GSH) concentration was observed in U87-TxR. Vascular Endothelial Growth Factor (VEGF) secretion was inhibited by single PTX treatment of colon cancer and in continuous treatment of glioblastoma cell lines. The analysis of cell cycle kinetics revealed extensive cell death in colon cancer cells that were accumulated in subG0 phase after PTX treatment, while glioblastoma cells died through interphase (G1, S or G2). The MDR cancer cell lines acquired novel structural or numerical chromosomal aberrations. Polyploidy reduction was observed after development of MDR in U87-TxR. Losses of 6q in both resistant cancer cell lines and inactivation of p53 in U87-TxR and PTEN in DLD1-TxR were also revealed. We evaluated the anti-cancer activities and MDR reversal potential of the Akt inhibitor (GSK690693), the Ras inhibitor (Tipifarnib) and two P-gp inhibitors (jatrophane diterpenoids Euphodendrophane H-Euph H and Euphodendrophane S -Euph S). Their effects vary due to the cell-type differences, existence of MDR phenotype or tumor suppressors’ alterations. Tipifarnib, Euph H and S, significantly sensitized MDR cancer cells to PTX." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41031/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Višestruka (engl. „multi-drug“) rezistencija (MDR)", "paklitaksel (PTX)", "karcinom debelog creva", "glioblastom", "P-glikoprotein", "anti-kancer agensi" ]
[ "Multi-drug resistance (MDR)", "paclitaxel (PTX)", "colon cancer", "glioblastoma", "P-glycoprotein", "anti-cancer agents" ]
[ "Uspostavljanje rezistentnih tumorskih ćelijskih linija kao modela za testiranje novih hemioterapeutika : molekularna karakterizacija rezistencije nastale dugotrajnim izlaganjem paklitakselu", "The establishing of resistant cancer cell lines as a model for testing of new chemotherapeutics: molecular characterization of resistance developed after continuous treatment with paclitaxel" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Радовић, Светлана; Aљанчић, Ивана; Руждијић, Сабера; Танић, Никола; Пешић, Милица; Подолски-Ренић, Aна; Успостављање резистентних туморских ћелијских линија као модела за тестирање нових хемиотерапеутика : молекуларна карактеризација резистенције настале дуготрајним излагањем паклитакселу; Успостављање резистентних туморских ћелијских линија као модела за тестирање нових хемиотерапеутика : молекуларна карактеризација резистенције настале дуготрајним излагањем паклитакселу;
[ "https://nardus.mpn.gov.rs/bitstream/id/2176/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2176/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2113" ]
10.2298/bg20130704podolskirenic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2101
123456789-2101.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:7069/bdef:Content/download
no
Efekat grelina na regulaciju antioksidativnih enzima i inducibilne azot-monoksid-sintaze u jetri pacova
The effect of ghrelin on the regulation of antioxidantenzymes and inducible nitric oxide synthase in rat liver
[ "Isenović, Esma R." ]
[ "Đorđević, Jelena", "Stokić, Edita" ]
Dobutović, Branislava D.
2016-01-05T11:47:22
[ "2016-01-05T11:47:22", "2020-07-03T08:09:39" ]
2013-07-12
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=762", "https://nardus.mpn.gov.rs/handle/123456789/2101", "https://fedorabg.bg.ac.rs/fedora/get/o:7069/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024579506" ]
[ "U poslednjih nekoliko godina, objavljeni naučni podaci sve više ukazuju na antioksidantne i antiinflamatorne efekte grelina. U ovoj doktorskoj disertaciji su izučavani efekti grelina na ekspresiju enzima jetre: superoksid dismutaze (engl. Superoxide Dismutase, SOD), katalaze (engl. Catalase, CAT), glutation peroksidaze (engl. Glutathione peroxidase, GPx) i glutation reduktaze (engl. Glutathione reductase, GR), kao i ekspresiju njihovog uzvodnog regulatora, nuklearnog faktora-kB (engl. Nuclear factor- kappa B, NFκB). Takođe su izučavani efekti grelina na regulaciju enzima inducibilne azot-monoksid-sintaze (engl. Inducible nitric oxide synthase, iNOS; NOS2) u jetri pacova. Jedan od ciljeva istraživanja u okviru ove doktorske disertacije je bio i utvrđivanje uloge kinaze regulisane ekstraćelijskim signalima (engl. Extracellular regulated protein kinase, ERK1/2) i protein kinaze B (engl. Protein kinase B, Akt) u grelinom regulisonoj aktivnosti i ekspresiji antioksidatnivnih enzima i iNOS u jetri pacova. Kontrolni, normalno hranjeni mužjaci pacova, Wistar soja (mase 200-250g) kao i mužjaci pacova koji su bili na dijeti bogatoj mastima (engl. High fat diet, HF), tretirani su grelinom (0,3nmol/5μl) intracerebroventrikularnim (ICV) injeciranjem, u bočne cerebralne komore svaka 24 h, u trajanju od 5 dana. Dva sata nakon poslednjeg tretmana, životinje su žrtvovane i izolovane su jetre. Za utvrđivanje nivoa ekspresije proteina: iNOS, antioksidativnih enzima, fosforilacije Akt na Ser473, ERK 1/2 i NFκB, subjedinica p50 i p65, primenjena je Western blot metoda. Dobijeni rezultati pokazuju da dolazi do povećanja ekspresije proteina za enzime antioksidativne zaštite: Cu/Zn-SOD (p<0,05), Mn-SOD (p<0,05), CAT (p<0,01), GPx, (p<0,001), kao i GR (p<0,01) u grupi normalno hranjenih životinja tretiranih grelinom u poređenju sa kontrolnim životinjama. Grelin značajno smanjuje ekspresiju iNOS (p<0,001) kao i fosforilaciju NFκB subjedinica p65 (p<0,001) i p50 (p<0,05) u grupi normalno hranjenih životinja u poređenju sa kontrolnom grupom pacova. Nivo fosforilacije Akt na Ser473 značajno je veći u grelinom tretiranoj grupi nego kod kontrolnih životinja (p<0,01)..." ]
[ "In recent years, there have been prominent findings suggesting that ghrelin has antioxidant and anti-inflammatory effects. In this study we investigated the effects of ghrelin on protein expression of liver antioxidant enzymes superoxide dismutases (SODs), catalase (CAT), glutathione peroxidase (GPx), and glutathione reductase (GR) as well as protein expression of their upstream regulator, nuclear factor kappa B (NFκB). We have also studied the effects of ghrelin on liver inducible nitric oxide synthase (iNOS) protein expression. Furthermore, we aimed to investigate whether extracellular regulated protein kinase (ERK 1/2) and protein kinase B (Akt) are involved in ghrelin regulated liver antioxidant enzymes and iNOS protein expression. Male Wistar rats (200-250g) were treated with ghrelin (0,3nmol/5μl) injected into the lateral cerebral ventricle every 24 h for 5 day, 2 h after the last treatment the animals were sacrificed and liver excised. For protein expression of antioxidant enzymes, iNOS, phosphorylation of Akt at Ser473, ERK1/2 and nuclear factor B (NFκB) subunits 50 and 65, Western blot method was used. Results show significantly higher protein expression of Cu/Zn SOD (p<0,05), Mn-SOD (p<0,05), CAT (p<0,01), GPx, (p<0,001), and GR (p<0,01) in the liver isolated from ghrelin treated animals compared with control animals. On the contrary, ghrelin significantly (p<0,001) reduced protein expression of iNOS. In addition, phosphorylation of NFκB subunits p65 and p50 were significantly (p<0,05) decreased by ghrelin when compared with controls. Phosphorylation of ERK1/2 and phosphorylation of Akt at Ser473 were significantly higher in ghrelin treated than in control animals (p<0,05 for ERK1/2; p<0,01 for Akt). In conclusion, results from this study show that activation of Akt and ERK1/2 are involved in ghrelin-mediated regulation of protein expression of antioxidant enzymes and iNOS in the rat liver." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173033/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by/4.0/" ]
Универзитет у Београду
[ "grelin", "Akt", "ERK 1/2", "iNOS", "antioksidativni enzimi", "NFκB", "Jetra" ]
[ "ghrelin", "Akt", "ERK1/2", "iNOS", "antioxidative ensymes", "NFκB", "Liver" ]
[ "Efekat grelina na regulaciju antioksidativnih enzima i inducibilne azot-monoksid-sintaze u jetri pacova", "The effect of ghrelin on the regulation of antioxidantenzymes and inducible nitric oxide synthase in rat liver" ]
[ "" ]
doctoralThesis
[ "BY" ]
Исеновић, Есма Р.; Ђорђевић, Јелена; Стокић, Едита; Добутовић, Бранислава Д.; Ефекат грелина на регулацију антиоксидативних ензима и индуцибилне азот-моноксид-синтазе у јетри пацова; Ефекат грелина на регулацију антиоксидативних ензима и индуцибилне азот-моноксид-синтазе у јетри пацова;
[ "https://nardus.mpn.gov.rs/bitstream/id/2133/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2133/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2101" ]
10.2298/bg20130712dobutovic
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/4178
123456789-4178.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:10316/bdef:Content/download
no
Ispitivanje uloge komponenti ESL1 antigena Trichinella spiralis u oblikovanju imunskog odgovora Dark agouti pacova
The role of Trichinella spiralis ESL1 antigens in shaping of immune response in Dark agouti rats
[ "Gruden-Movsesijan, Alisa" ]
[ "Božić, Biljana", "Sofronić-Milosavljević, Ljiljana", "Gruden-Movsesijan, Alisa", "Božić, Biljana" ]
Cvetković, Jelena D.
2020-07-03T08:11:34
[ "2020-07-03T08:11:34" ]
2015-07-09
[ "https://nardus.mpn.gov.rs/handle/123456789/4178", "http://eteze.bg.ac.rs/application/showtheses?thesesId=2360", "https://fedorabg.bg.ac.rs/fedora/get/o:10316/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=1024962994" ]
[ "Tokom hronične faze infekcije helmint, Trichinella spiralis, komunicira sa imunskim sistemom domaćina posredstvom ekskretorno-sekretornih produkata (ESL1) mišićnih larvi i kreira sredinu u kojoj dominiraju Th2 i regulatorni tip imunskog odgovora. Međutim, mehanizmi koji leže u osnovi ovakve polarizacije imunskog odgovora još uvek nisu poznati. Ova studija je posvećena istraživanju molekula ESL1 antigena uključenih u interakciju sa receptorima za molekulske obrasce i signalnih puteva koji tom interakcijom bivaju pokrenuti u dendritskim ćelijama, a koji dovode do sledstvene polarizacije T ćelijskog odgovora. ESL1 antigeni, primenjeni intraperitonealno, statistički značajno povećavaju produkciju IL-4 i IL-10, a ne utiču na nivo produkcije TGF-β i IFN-γ in vivo. Promena ugljenohidratne strukture ESL1 antigena (perjodatom tretirani ESL1, pESL1) snažno smanjuje produkciju IL-4 i IL-10, što ukazuje na važnost glikana za pokretanje Th2 i anti-inflamatornog imunskog odgovora. In vitro eksperimenti sa ESL1 i njegovim komponentama: 7C2C5Ag (antigen koji sadrži 45, 49 i 53-kDa glikoproteine) i rTsp53 (rekombinantni p53) su pokazali da svi ispitivani antigeni dovode do nepotpunog sazrevanja dendritskih ćelija, koje je praćeno smanjenom produkcijom IL-12p70 i povećanom produkcijom IL-10 i kapacitetom da promovišu Th2 i regulatorni imunski odgovor. Modifikacija glikana ESL1 nije uticala na fenotip dendritiskih ćelija, ali je dovela do smanjenja produkcije citokina IL-12p70 i IL-10 u tretiranim dendritskim ćelijama, što je rezultiralo sniženom produkcijom IL-10 i TGF-β od strane T ćelija. Prisustvo intaktnih glikana je bitno za indukciju Th2 i regulatornog odgovora in vitro. Ispitivanjem interakcije receptora sličnih Toll proteinu (engl. Toll-like receptors, TLR) i ESL1 antigena, pokazano je da ESL1 antigeni angažuju TLR2 i TLR4, dok se 7C2C5Ag vezuje samo za TLR2 i da su te interakcije zavisne od prisustva intaktnih ugljenohidratnih struktura. ESL1, pESL1, rTsp53 i 7C2C5Ag dovode do aktivacije MAP kinaza ERK1/2 i p38 u signalnom putu koji biva pokrenut interakcijom dendritiskim ćelijama sа ovim T. spiralis antigenima, dok pESL1 dovodi do slabe aktivacije obe ispitivane MAP kinaze..." ]
[ "The helminth Trichinella spiralis communicates with the host immune system through excretory-secretory products (ESL1). ESL1 antigens drive immune response towards Th2 and regulatory type. However, there is no information about mechanisms by which ESL1 influences such polarization. Here, we investigated the impact of ESL1 and its components on immune response, Pattern Recognition Receptors involved in the interaction with these antigens and subsequently provoked signaling events in dendritic cells . ESL1 antigens significantly increased the production of IL-4 and IL-10, while they did not affect the levels of TGF-β and IFN-γ in vivo. Changes in the structure of ESL1 glycans greatly reduced the production of IL-4 indicating their importance for Th2 immune response. In vitro experiments with ESL1 and ESL1 components: 7C2C5Ag (containing 45, 49, and 53-kDa glycoproteins) and rTsp53 (recombinant p53) resulted in the same semimature dendritic cell phenotype accompanied by reduced production of IL-12p70 and elevated production of IL-10 and the capacity to promote Th2 and regulatory responses. Modification of ESL1 glycans (periodate treated ESL1, pESL1) did not change dendritic cell phenotype but had an impact on cytokine production of dendritic cells (reduced IL-12p70 and IL-10). Dendritic cells treated with pESL1 provoked low production of IL-10 and TGF-β in T cells, indicating the importance of intact glycans for Th2 and regulatory response induction. Considering investigation of Toll-like receptors (TLR) involved in the interaction with ESL1 antigens, we have found that TLR2 is engaged by ESL1 and 7C2C5Ag, while TLR4 interacts only with ESL1. These interactions are impaired with changes in carbohydrate structure of ESL1. ESL1, 7C2C5Ag and rTsp53 transiently activated ERK1/2 MAP kinase, weakly activated p38 kinase and these activations were glycan dependent. This study indicates for the first time that some components of ESL1 (7C2C5Ag and rTsp53) possess immunomodulatory properties and that glycans on ESL1 are important for immune response polarization." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/173047/RS//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "Trichinella spiralis", "dendritske ćelije", "ESL1", "glikani ESL1", "7C2C5Ag", "rTsp53", "imunski odgovor", "T limfociti", "TLR", "MAP kinaze" ]
[ "Trichinella spiralis", "ESL1", "ESL1 glycans", "7C2C5Ag", "rTsp53", "immune response", "dendritic cells", "T lymphocytes", "TLR", "MAP kinase" ]
[ "Ispitivanje uloge komponenti ESL1 antigena Trichinella spiralis u oblikovanju imunskog odgovora Dark agouti pacova", "The role of Trichinella spiralis ESL1 antigens in shaping of immune response in Dark agouti rats" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Груден-Мовсесијан, Aлиса; Божић, Биљана; Софронић-Милосављевић, Љиљана; Груден-Мовсесијан, Aлиса; Божић, Биљана; Цветковић, Јелена Д.; Испитивање улоге компоненти ЕСЛ1 антигена Трицхинелла спиралис у обликовању имунског одговора Дарк агоути пацова; Испитивање улоге компоненти ЕСЛ1 антигена Трицхинелла спиралис у обликовању имунског одговора Дарк агоути пацова;
[ "https://nardus.mpn.gov.rs/bitstream/id/2538/Cvetkovic_Jelena_disertacija.pdf", "https://nardus.mpn.gov.rs/bitstream/id/2539/Jelena_Cvetkovic_Referat_BF.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2538/Cvetkovic_Jelena_disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2539/Jelena_Cvetkovic_Referat_BF.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_4178" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/6995
123456789-6995.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:13920/bdef:Content/download
no
Nanoplazmonski metamaterijali za novu generaciju hemijskih, biohemijskih i bioloških senzora
Nanoplasmonic metamaterials for a new generation of chemical, biochemical and biological sensors
[ "Jakšić, Zoran" ]
[ "Tadić, Milan", "Radovanović, Jelena", "Radulović, Katarina", "Čukarić, Nemanja" ]
Tanasković, Dragan M.
2016-11-20T10:38:32
[ "2016-11-20T10:38:32", "2020-07-03T08:35:51" ]
2016-06-02
[ "http://eteze.bg.ac.rs/application/showtheses?thesesId=4216", "https://nardus.mpn.gov.rs/handle/123456789/6995", "https://fedorabg.bg.ac.rs/fedora/get/o:13920/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48085775" ]
[ "Potreba za osetljivim senzorima hemijskih, biohemijskih i bioloških agensa u današnjem svetu sve je veća, od industrije, preko biomedicine, do očuvanja okoline i protivterorističke odbrane. MeĎu najosetljivijim i najsvestranijim napravama ove vrste su elektromagnetni senzori, naročito oni koji svoju funkciju zasnivaju napovršinskimplazmonima-polaritonima (surface plasmons polaritons, SPP) na meĎupovršini metal-dielektrik. Sa dolaskom nanotehnologija otvorila se mogućnost da se proizvedu metal-dielektrični nanokompoziti, čime je omogućen novi stepen slobode u dobijanju SPP senzora i stvorena nova grana elektromagnetne optike koja je nazvana plazmonika. Posebno bitan proboj predstavljaju elektromagnetni metamaterijali koji se mogu definisati kao veštačke strukture sa elektromagnetnim, odnosno optičkim osobinama, kakve se ne pojavljuju uobičajeno u prirodi. Moţda najpoznatiji primer sutzv. „levoruki“ metamaterijali, strukture čiji efektivni indeks prelamanja u odreĎenom opsegu talasnih duţina dostiţe negativne vrednosti. Ova disertacija okrenuta je razmatranju upotrebljivosti plazmonskih metamaterijala za visoko osetljive senzore hemijskih, biohemijskih i bioloških agensa. Osnovna ideja je da se kontrolisanim strukturiranjem metal-dielektričnih nanokompozita obezbedi projektovanje novih elektromagnetnih modova. Oni će se zatim iskoristiti za prevazilaţenje principskih ograničenja konvencionalnih plazmonskih senzora i povećanje njihove osetljivosti i selektivnosti. Koncept metamaterijala s jedne strane daje mogućnost inţenjeringa frekventne disperzije i time formiranja optičkih modova neostvarivih u prirodnim materijalima, a s druge dozvoljava modifikovanje prostorne disperzije, odnosno kontrolisano menjanje optičkog prostora (tzv. transformaciona optika). Jedna od osnovnih posledica ovoga jeste mogućnost lokalizovanja optičkog polja na duboko podtalasne domene, što dovodi do drastičnogpovećanja osetljivosti hemijskih, biohemijskih i bioloških senzora. Druga posledica je mogućnost formiranja plazmonskih nanokompozita koji uvoĎenjem novih modova omogućuju selektivno očitavanje prisustva ciljanih agensa. Najzad, u takvim v strukturama konstrukcijski se obezbeĎuje efikasna spregasa snopom za očitavanje, što je jedan od velikih problema kod konvencionalnih SPP senzora..." ]
[ "The need for sensitive sensors of chemical, biochemical and biological analytes in the contemporary world is ever increasing, from industry, to biomedicine, to environmental protection and homeland defense. Among the most sensitive and most versatile devices of this kind are electromagnetic sensors, especially those with their function based on surface plasmons polaritons (SPP) at a metal-dielectric interface. The advent of nanotechnologies ensured a possibility to fabricate metal-dielectric nanocomposites, thus ensuring a novel degree of freedom in the fabrication of SPP and creating a new branch of electromagnetic optics, the plasmonics. An especially important breakthrough are electromagnetic metamaterials that can be defined as artificial structures with electromagnetic or optic properties which do not occur usually in nature. Maybe the best known example are the so-called \"left-handed\" metamaterials, the structures whose effective refractive index in a given wavelength range reaches negative values. This dissertation is dedicated to a consideration of the applicability of plasmonic metamaterials for highlysensitive sensors of chemical, biochemical and biological analytes. The basic idea is to ensure the design of new electromagnetic modes through controlled structuring of metal-dielectric nanocomposites. These modes are further used to overcome the fundamental limitations of conventional plasmonic sensors and to increase their sensitivity and selectivity. The concept of metamaterial from one side offers an opportunity to engineer the frequency dispersion and thus to design optical modes unattainable in natural materials, while from the other side it allows the modification of the spatial dispersion, i.e. controlled changing of the optical space (the so-called transformation optics). One of the main consequences is the possibility to concentrate the optical field into deep subwavelength domains, which leads to a drastic increase of the sensitivity of chemical, biochemical and biological sensors. Another consequence is the possibility to form plasmonic nanocomposites which by introducing new modes ensure selective readout of vii the targeted analytes. Finally, the geometry of such structures ensures efficient coupling with a readout beam, which is a large problem with the conventional SPP sensors..." ]
application/pdf
sr
Универзитет у Београду, Електротехнички факултет
[ "info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/32008/RS//", "info:eu-repo/grantAgreement/EC/FP7/205533/EU//" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-sa/4.0/" ]
Универзитет у Београду
[ "nanotehnologije", "nanofotonika", "plazmonika", "metamaterijali", "plazmonskisenzori", "hemijski i biološki senzori", "refraktometrijski senzori" ]
[ "Nanotechnologies", "Nanophotonics", "Plasmonics", "Metamaterials", "Plasmonic Sensors", "Chemical and Biological Sensors", "Refractometric Sensors" ]
[ "Nanoplazmonski metamaterijali za novu generaciju hemijskih, biohemijskih i bioloških senzora" ]
[ "Nanoplasmonic metamaterials for a new generation of chemical, biochemical and biological sensors" ]
doctoralThesis
[ "BY-SA" ]
Јакшић, Зоран; Тадић, Милан; Радовановић, Јелена; Радуловић, Катарина; Чукарић, Немања; Танасковић, Драган М.; Наноплазмонски метаматеријали за нову генерацију хемијских, биохемијских и биолошких сензора; Наноплазмонски метаматеријали за нову генерацију хемијских, биохемијских и биолошких сензора;
[ "https://nardus.mpn.gov.rs/bitstream/id/5740/Dragan_Tanaskovic_Referat.pdf", "http://nardus.mpn.gov.rs/bitstream/id/5739/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/5740/Dragan_Tanaskovic_Referat.pdf", "https://nardus.mpn.gov.rs/bitstream/id/5739/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_6995" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
https://nardus.mpn.gov.rs/handle/123456789/2076
123456789-2076.pdf
yes
no
https://fedorabg.bg.ac.rs/fedora/get/o:5392/bdef:Content/download
no
Genetički markeri oksidativnog stresa kod bolesnika sa manifestnim dijabetesom tipa 2 i aterosklerozom
Genetic markers of oxidative stress in patients with manifested diabetes type 2 and atherosclerosis
[ "Milašin, Jelena" ]
[ "Stamenković-Radak, Marina", "Vučinić, Nada", "Novaković, Ivana" ]
Grubiša, Ivana I.
2016-01-05T11:46:38
[ "2016-01-05T11:46:38", "2020-07-03T08:09:15" ]
2013-04-26
[ "https://nardus.mpn.gov.rs/handle/123456789/2076", "http://eteze.bg.ac.rs/application/showtheses?thesesId=155", "https://fedorabg.bg.ac.rs/fedora/get/o:5392/bdef:Content/download", "http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=43481103" ]
[ "Ateroskleroza je kompleksno i multifaktorsko oboljenje koje obuhvata veliki broj tipova ćelija kao i brojne fiziološke procese. Veruje se da oksidativni stres igra važnu ulogu u inicijaciji i progresiji ateroskleroze. Kardiovaskularne bolesti (CVD) predstavljaju vodeći uzrok smrtnosti u Srbiji i pronalaženje markera oksidativnog stresa, uključujući i genske varijante, doprinelo bi smanjenju broja obolelih. Studija asocijacije, koja je obuhvatala 140 obolelih od diabetes mellitus tip 2 sa kardiovaskularnim komplikacijama (DM+A), 60 obolelih od neke od kliničkih manifestacija ateroskleroze (A) i 100 zdravih kontrola (K) je sprovedena da bi se utvrdila značajnost polimorfizama gena koji su povezani sa oksidativnim stresom, metabolizmom lipida i detoksifikacijom kao markera oksidativnog stresa i faktora rizika za nastanak oboljenja. Za studiju su odabrani polimorfizmi gena čiji produkti imaju antioksidativnu ulogu u plazmi (pon1 Q192R, L55M i C(-107)T), antioksidativnu ulogu i ulogu u metabolizmu lipida u plazmi i ćeliji (apoE 112/158 polimorfizam) i antioksidativnu i detoksifikujuću ulogu u ćeliji (GSTM1*0, GSTT1*0 i GSTP1 Ile105Val). Genomska DNK je izolovana ili iz ćelija periferne krvi ili iz epitelnih ćelija bukalne sluzokože. Genotipizacija je rañena restrikcionom digestijom PCR produkata i analizom dužine restrikcionih fragmenata (PCR-RFLP) na agaroznom ili poliakrilamidnom gelu i real-time PCR metodom. Hi-kvadrat i Fišerov egzaktni test su upotrebljeni za utvrñivanje razlika u distribuciji učestalosti ispitivanih genotipova i alela, a logističkom regresionom analizom utvrñivan je rizik za oboljevanje." ]
[ "Atherosclerosis is a complex and multifactorial disorder that involves many cell types and organs as well as many physiological processes. It is believed that the oxidative stress plays a critical role in the initiation and progression of atherosclerosis. Cardiovascular diseases (CVD) are the leading cause of death in Serbia and discovering oxidative stress markers, including gene variants, would contribute to reducing the number of patients. A association study, comprised 140 patients with diabetes mellitus type 2 and cardiovascular complications (DM+A), 60 patients with clinical manifestations of atherosclerosis (A) and 100 healthy individuals (K), has been undertaken in order to estimate the relevance of polymorphisms in genes related to oxidative stress, lipid metabolism, and detoxification as oxidative stress markers and disease risk factors. Polymorphisms in genes whose products exert an antioxidative role in the plasma (pon1 Q192R, L55M i C(-107)T), in both plasma and cells (apoE 112/158 polymorphisms) and antioxidative and detoxication role in cells (GSTM1*0, GSTT1*0 i GSTP1 Ile105Val) have been selected for the study. Genomic DNA was isolated from peripheral blood cells or from buccal epithelial cells. The genotyping was performed using restriction digestion of PCR products and by analysis of restriction fragment length (PCR-RFLP) on agarose or polyacrilamide gel electrophoresis and the real-time PCR method.Chi-square and Fisher exact test were used for determination of differences in the analyzed genotype and allele distribution frequencies, and logistic regression analysis was used for disease risk assessment." ]
application/pdf
sr
Универзитет у Београду, Биолошки факултет
[ "" ]
[ "openAccess" ]
[ "https://creativecommons.org/licenses/by-nc-nd/4.0/" ]
Универзитет у Београду
[ "ateroskleroza", "diabetes mellitus tip 2", "oksidativni stres", "genski polimorfizmi", "apoE", "pon1", "GSTM1", "GSTT1", "GSTP1" ]
[ "atherosclerosis", "diabetes mellitus type 2", "oxidative stress", "gene polymorphisms", "apoE", "pon1", "GSTM1", "GSTT1", "GSTP1" ]
[ "Genetički markeri oksidativnog stresa kod bolesnika sa manifestnim dijabetesom tipa 2 i aterosklerozom", "Genetic markers of oxidative stress in patients with manifested diabetes type 2 and atherosclerosis" ]
[ "" ]
doctoralThesis
[ "BY-NC-ND" ]
Милашин, Јелена; Вучинић, Нада; Новаковић, Ивана; Стаменковић-Радак, Марина; Грубиша, Ивана И.; Генетички маркери оксидативног стреса код болесника са манифестним дијабетесом типа 2 и атеросклерозом; Генетички маркери оксидативног стреса код болесника са манифестним дијабетесом типа 2 и атеросклерозом;
[ "https://nardus.mpn.gov.rs/bitstream/id/2050/Disertacija.pdf", "http://nardus.mpn.gov.rs/bitstream/id/2050/Disertacija.pdf" ]
[ "https://hdl.handle.net/21.15107/rcub_nardus_2076" ]
10.2298/bg20130426grubisa
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]
[ "" ]