Effect of Jinfeng Pill on ovarian function of Tripterygium wilfordii polyglycoside tablets induced poor ovarian response rats

Objective: This study aimed to assess the effects of the Jinfeng pill on ovarian volume and endocrine function in rats with poor ovarian response and to elucidate the gene expression changes that contribute to the Jinfeng pill’s role in improving ovarian function. Methods: Thirty 8-week-old specific pathogen-free (SPF) female rats were randomly assigned to five groups: control, model, estradiol, Jinfeng pill, and Jinfeng pill + estradiol, with six rats in each group. All groups, except the control were administered Tripterygium glycoside tablets. After establishing the poor ovarian response model, the three intervention groups (estradiol, Jinfeng pill, and Jinfeng pill + estradiol) received their respective drug interventions. Hematoxylin-eosin staining was employed to assess follicle distribution, and immunohistochemistry was used to evaluate the expression of vascular endothelial growth factor and endostatin in rat ovaries. Hormone levels were measured using ELISA. Results: The uterine and total ovarian masses in the three intervention groups were higher than those in the model group; however, the differences were not statistically significant. The ovaries of the Jinfeng pill and Jinfeng pill + estradiol groups contained more follicles at various developmental stages. The three intervention groups showed significantly increased vascular endothelial growth factor expression and decreased endostatin expression compared with the model group, with the Jinfeng pill + estradiol group exhibiting the most pronounced differences. Anti-Müllerian hormone levels were slightly elevated in the Jinfeng pill group compared to the model group. However, only the Jinfeng pill + estradiol group showed a statistically significant decrease in follicle-stimulating hormone levels compared to the model group (P = 0.01). Conclusions: Jinfeng pill modulates ovarian protein expression, increases ovarian volume, and improves blood circulation. Additionally, it may elevate hormone levels and enhance ovarian response function in rats with poor ovarian function.