Abstract
It has been well-established that there is a connection between polycystic ovary syndrome (PCOS) pathology and gut microbiome dysbiosis. A marine-derived oligosaccharide, GV-971, has been reported to alter gut microbiota and alleviate Aβ amyloidosis. In this study, the effects of GV-971 on PCOS-like mice were explored. Mice were randomly assigned into four groups: control, letrozole, letrozole + GV-971, control + GV-971. Glucose metabolism in PCOS-like mice was ameliorated by GV-971, while the reproductive endocrine disorder of PCOS-like mice was partially reversed. The messenger ribonucleic acid levels of steroidogenic enzymes in ovaries of PCOS-like mice were improved. GV-971 restored the fertility of PCOS-like mice and significantly increase the number of litters. Furthermore, GV-971 treatment effectively mitigated abnormal bile acid metabolism. Notably, after GV-971 intervention, gut microbiota alpha-diversity was considerably raised and the relative abundance of Firmicutes was reduced. In conclusion, the hyperinsulinemia and hyperandrogenemia of PCOS-like mice were alleviated by GV-971 intervention, which was associated with mitigating bile acid metabolism and modulating gut microbiota.
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