Vitamin E could reverse effects of bisphenol A on steroidogenesis in rat ovary granulosa cells
10.3969/j.issn.1674-8115.2017.06.004
- VernacularTitle:维生素E拮抗双酚A对卵巢颗粒细胞性激素分泌的抑制作用
- Author:
Weiwei CHEN
;
Weijie SUN
;
Lei WANG
;
Xianting JIAO
;
Xiaodan YU
- Keywords:
bisphenol A;
vitamin E;
ovary granulosa cell;
estradiol;
progesterone
- From:
Journal of Shanghai Jiaotong University(Medical Science)
2017;37(6):732-737
- CountryChina
- Language:Chinese
-
Abstract:
Objective· To investigate whether vitamin E could reverse the disruptive effects of bisphenol A (BPA) on steroidogenesis and to explore the optimal vitamin E concentration.Methods· Rat primary granulosa cells were extracted and exposed to BPA (0,0.01,0.1,1,10,100 μmol/L).After 48 h of incubation,culture medium was collected and estradiol (E2) and progesterone (P4) were measured using ELISA kits.Then,granulosa cells were incubated with 5 μmol/L(average concentration in follicular fluid) or 25 μmol/L (high concentration in follicular fluid) vitamin E (α-tocopherol) or vitamin E (5 μmol/Lor 25 μmol/L) plus BPA (10 μmol/L or 100 μmol/L) for 48h,E2 and P4 were measured.Results· BPA at 10 μmol/L and 100 μmol/L suppressed E2 and P4 production in a dose-dependent manner (P＜0.05).Vitamin E at 25 μmol/L significantly increased E2 and P4 levels by (44.89±15.18) ％ and (43.33±8.82) ％(P＜0.05),respectively.Coincubation of the granulosa cells with BPA and vitamin E (5 μmol/L or 25 μmol/L) restored the productions of E2 and P4,which were not significantly different from the control group (P＞0.05).Conclusion· Vitamin E (5 μmol/L/25 μmol/L) could reverse BPA-induced reduction in steroid hormone production in rat ovary granulosa cells,and the antagonistic effect of 25 μmol/L vitamin E was more obvious than that of 5 μmol/L vitamin E.
