Abstract
To investigate the mechanism of resveratrol treatment in chemically induced premature ovarian insufficiency (POI) in rats. Five-week-old specific pathogen-free healthy Sprague-Dawley female rats (n = 90) were randomly divided into five groups (n = 18): low-dose resveratrol (group A), moderate-dose resveratrol (group B), high-dose resveratrol (group C), model control group (group D) and blank control group (group E). POI was induced in rats from the resveratrol-treated groups and the model control group according to observed indexes using a previously established model (oral administration of tripterygium wilfordii polyglycoside tablet 50 mg/kg/day for 14 days). Western blot analysis was performed to compare levels of PI3K, p-PI3K, Akt, p-Akt, mTOR, p-mTOR, Bax, Bcl-2 and Caspase-3 in ovarian tissues of each group, and expression of p-Akt, p-mTOR, Bax, Bcl-2 and Caspase-3 was also evaluated by immunohistochemistry. Serum levels of malondialdehyde (MDA) and superoxide dismutase (SOD) were determined using enzyme-linked immunosorbent assay. Compared with controls, we found that serum MDA decreased and SOD increased in resveratrol-treated groups. In addition, we found increased expression of p-PI3K, p-Akt, p-mTOR and Bcl-2, and dec...Continue Reading
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