Changes in follicular blood flow and nitric oxide levels in follicular fluid during follicular deviation in cows

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dc.authorscopusid16031677100
dc.authorscopusid16031039100
dc.authorscopusid8545293300
dc.authorscopusid6506393120
dc.authorscopusid25229610900
dc.authorscopusid55930146200
dc.contributor.authorPancarci Ş.M.
dc.contributor.authorGüngör T.
dc.contributor.authorAtakişi O.
dc.contributor.authorÇi?remiş Y.
dc.contributor.authorAri U.Ç.
dc.contributor.authorBollwein H.
dc.date.accessioned2024-08-04T19:59:27Z
dc.date.available2024-08-04T19:59:27Z
dc.date.issued2011
dc.departmentİnönü Üniversitesien_US
dc.description.abstractTwo experiments were conducted to test the hypothesis that there are dynamic changes in follicular blood flow during follicular deviation and that nitric oxide (NO) in follicular fluid (FF) plays a role in regulation of follicular blood flow. In Experiment I, follicular blood flow of the two largest follicles was monitored by using Power Doppler ultrasonography during follicular deviation in sixteen follicular waves during eight estrous cycles in eight cows. Blood flow did not differ (P> 0.05) between the dominant follicle (DF) and the largest subordinate follicle (SF) until the beginning of the deviation of the follicular size, but was higher (P< 0.05) in DF than in the largest SF one and two days after the beginning of diameter deviation in ovulatory (n = 5) and atretic (n = 11) waves; respectively. In Experiment II, FF was aspirated from DF and the largest SF on the day of diameter deviation (DF, n = 6; SF, n = 6) and two days later (DF, n = 12; SF, n = 9). Nitric oxide did not differ (P> 0.05) between DF and the largest SF on the day of diameter deviation but, one or two days after observed diameter deviation NO concentrations were lower (P< 0.01) in DF compared to the largest SF. On the day of diameter deviation and two days later E2 levels in FF were higher (P< 0.01) in DF than in the largest SF. P4 concentrations in FF were higher (P< 0.05) in DF than in the largest SF on the day of diameter deviation, but did not (P> 0.05) differ two days later. E2/P4 ratio in FF was the same (P> 0.05) in DF and the largest SF on the day of diameter deviation, but was higher (P< 0.01) in DF than in the largest SF one or two days later. In conclusion, area of follicular blood flow of DF and the largest SF increased in parallel with follicular size during follicular deviation. Furthermore, there were relationships between changes in follicular blood flow, NO concentrations and E2/P4 ratio in FF following the beginning of diameter deviation in cattle. © 2011 Elsevier B.V.en_US
dc.description.sponsorship106O544; Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAKen_US
dc.description.sponsorshipThis project was supported by TUBITAK (The Scientific and Technical Research Council of Turkey). Grant No.: TUBITAK-TOVAG Carrier Project, 106O544 . Authors gratefully thank to farm personnel at Dairy Cattle Research Farm, Kafkas University, Kars, Turkey.en_US
dc.identifier.doi10.1016/j.anireprosci.2011.01.001
dc.identifier.endpage156en_US
dc.identifier.issn0378-4320
dc.identifier.issue3-4en_US
dc.identifier.pmid21292411en_US
dc.identifier.scopus2-s2.0-79951681416en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage149en_US
dc.identifier.urihttps://doi.org/10.1016/j.anireprosci.2011.01.001
dc.identifier.urihttps://hdl.handle.net/11616/90639
dc.identifier.volume123en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.relation.ispartofAnimal Reproduction Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBlood flowen_US
dc.subjectCowen_US
dc.subjectEstradiol-17?en_US
dc.subjectFollicle deviationen_US
dc.subjectNitric oxideen_US
dc.subjectProgesteroneen_US
dc.titleChanges in follicular blood flow and nitric oxide levels in follicular fluid during follicular deviation in cowsen_US
dc.typeArticleen_US

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