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Protective mechanisms of triptorelin against tripterygium glycoside-induced ovarian dysfunction

Yang-Chun Zhao, Ling Lv, Dong-Sheng Li, Jing Zhao, Hao-Ying Wang

The aim of this study was to investigate the protective effects of Triptorelin (TRI) on Tripterygium Glycoside-induced Ovarian Dysfunction (TG-OD). Thirty mice with normal estrous cycles were randomly divided into three groups (n=10): the control group (group A) was orally administered 0.35 ml of saline daily; the TH group (group B) was orally administered 0.35 ml of TG solution from the 8^th d for 10 w continuously; the TG+TRI group (group C) was subcutaneously injected with 0.1 mg/kg TRI daily, as well as orally administered 0.35 ml of TG solution from the 8^th d for 10 w continuously. All mice were sacrificed during the 11th week to detect blood anti-Mullerian hormone, follicle-stimulating hormone, luteinizing hormone, and estradiol; calculate the ovarian index; and observe the morphologies of ovarian tissues. Mice in group C were more flexible, and had increased weight, reduced folliclestimulating hormone and luteinizing hormone, and increased anti-Mullerian hormone and estradiol; additionally, ovarian follicles and mature follicles increased. TG caused gonad and ovarian dysfunction in female mice; TRI exhibited protective effects against TG-induced gonad and ovarian dysfunction in female mice.