Antioxidative system of bovine follicles regarding stage of estrous cycle and folliculogenesis (CROSBI ID 676676)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Aladrović, Jasna ; Beer Ljubić, Blanka ; Laškaj, Renata ; Vranković, Lana ; Lojkić, Martina
engleski
Antioxidative system of bovine follicles regarding stage of estrous cycle and folliculogenesis
Background. Oxidative stress is important for promoting the oocyte maturation and ovulation within the follicle. The aim of the study was to examine activities of the superoxide dismutase (SOD), glutathione peroxidase (GPx) and biological antioxidant potential (BAP) involved in protection against free oxygen radicals and concentration of reactive oxygen metabolites (ROMs) in bovine follicular fluid. Methods. Bovine ovaries were obtained from a slaughterhouse. The stage of estrous cycle (follicular or luteal) was identified. Follicular fluids (FF) were collected by puncture from three categories of follicles: small (≤5 mm), medium (6-10 mm) or large (>10 mm) from ovaries in both follicular and luteal stage of estruos cycle. Results. The results indicate a significantly higher activity of SOD in bovine FF from follicles in luteal stage of estruos cycle than in follicular stage (p=0.037). In FF of follicles in both stages of estrous cycle, SOD activity and BAP were significantly higher in FF of small and medium sized follicles than in large ones (p=0.000 both). The ROMs significantly declined from small to large follicles in FF collected during both, luteal and follicular phase of estrous cycle (p=0.005 both). Activity of GPx showed no significant differences regarding neither estrous cycle nor size of follicles. Conclusions. Results indicate similar antioxidative properties of bovine follicles during both luteal/follicular stage of estrous cycle with higher SOD activity in FF of follicles in luteal stage of estrous cycles which undergo atresia.
bovine follicular fluid, antioxidative system, luteal stage of estrous cycle, follicular stage of estrous cycle
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Podaci o prilogu
7-10.
2019.
objavljeno
10.15407/animalbiol21.02.007
Podaci o matičnoj publikaciji
The Animal Biology
Vlizlo, Vasyl
Lavov: National academy of Agrarian science of Ukraine the Institute of Animal Biology
1681-0015
2313-2191
Podaci o skupu
19th Middle-European Buiatric Congress
poster
22.05.2019-25.05.2019
Lavov, Ukrajina