Shaoyao-Gancao decoction improves dyslipidemia in rats with polycystic ovary syndrome by reshaping the gut microbiota and regulating the bile acid/FXR pathway.

This study aims to investigate the potential mechanism of Shaoyao-Gancao Decoction (SGD) in treating polycystic ovary syndrome (PCOS). Our results suggested that SGD effectively regulated estrous cycles, reduced body weight and serum lipid levels in PCOS rats. Additionally, SGD administration significantly remodeled the structure of gut microbiota, especially the BA-related bacteria. The mRNA expressions of BAs metabolism pathway-related genes were significantly changed by SGD treatment. Furthermore, transplantation of fecal microbiota from SGD rats verified these results. In conclusion, SGD could ameliorate dyslipidemia in PCOS rats by remodeling the structure of the gut microbiome and regulating the bile acid/FXR pathway.