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A marine-derived oligosaccharide, GV-971, has been reported to alter gut microbiota and alleviate A\u03b2 amyloidosis. In this study, the effects of GV-971 on polycystic ovary syndrome\u2013like mice were explored. Mice were randomly assigned into four groups: control, letrozole, letrozole + GV-971, and control + GV-971. Glucose metabolism in polycystic ovary syndrome\u2013like mice was ameliorated by GV-971, while the reproductive endocrine disorder of polycystic ovary syndrome\u2013like mice was partially reversed. The messenger ribonucleic acid levels of steroidogenic enzymes in ovaries of polycystic ovary syndrome\u2013like mice were improved. GV-971 restored the fertility of polycystic ovary syndrome\u2013like 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 polycystic ovary syndrome\u2013like mice were alleviated by GV-971 intervention, which was associated with mitigating bile acid metabolism and modulating gut microbiota.<\/jats:p>","DOI":"10.1093\/biolre\/ioae058","type":"journal-article","created":{"date-parts":[[2024,4,17]],"date-time":"2024-04-17T21:19:37Z","timestamp":1713388777000},"page":"361-375","source":"Crossref","is-referenced-by-count":2,"title":["Sodium oligomannate\u2019s amelioration of reproductive and metabolic phenotypes in a letrozole-induced PCOS-like mouse model depends on the gut microbiome"],"prefix":"10.1093","volume":"111","author":[{"given":"Zhi","family":"Li","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Obstetrics and Gynecology Hospital of Fudan University , Shanghai , 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