Effects of berberine on LPS /NF-κB and MAPK signaling pathways in PCOS model rats
Abstract
Objective: To investigate the effects of berberine on glucose and lipid metabolism, sex hormone binding protein, adiponectin (LPS), NF-κB and MAPK signaling pathways in polycystic ovary syndrome (PCOS) model rats. Methods: Female SD rats were randomly divided into control group, PCOS model group, berberine (0.216 g/kg) group, metformin (0.135 g/kg) group and Dyne-35 (0.18 mg/kg) group, 10 rats in each group. The rats in PCOS model group were treated with letrozole 1 mg.kg-1 by ig for 3 weeks. After 28 days of drug intervention, the body constitution, ovarian and uterine indexes of the rats were detected, and the changes in the number of ovarian follicles were observed by HE staining. The levels of serum sex hormone, glucose and insulin, triglyceride and cholesterol, sex hormone-binding protein and adiponectin were determined by ELISA, and the protein expressions of p38-MAPK, C-Jun and NF-κB in ovarian tissues were determined by Western blot. Results: Compared with control group, body weight of model group was increased (P＜0.05), and uterine index was decreased (P＜0.05); The number of follicles was increased (P＜0.05). Serum levels of luteinizing hormone (LH), testosterone (T) and LH/FSH ratio were increased (P＜0.05), follicular estrogen (FSH) level was decreased (P＜0.05), total cholesterol (TC), triglyceride (TG), fasting insulin and insulin index (HOMA) were increased (P＜ 0.05). The content of sex hormone binding protein (SHBG) was decreased and the content of adiponectin…
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