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Gut microbiota promotes cholesterol gallstone formation by modulating bile acid composition and biliary cholesterol secretion

Nature Communications, ISSN: 2041-1723, Vol: 13, Issue: 1, Page: 252
2022
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Article Description

Cholesterol gallstone disease is a worldwide common disease. Cholesterol supersaturation in gallbladder bile is the prerequisite for its pathogenesis, while the mechanism is not completely understood. In this study, we find enrichment of gut microbiota (especially Desulfovibrionales) in patients with gallstone disease. Fecal transplantation of gut microbiota from gallstone patients to gallstone-resistant strain of mice can induce gallstone formation. Carrying Desulfovibrionales is associated with enhanced cecal secondary bile acids production and increase of bile acid hydrophobicity facilitating intestinal cholesterol absorption. Meanwhile, the metabolic product of Desulfovibrionales, HS increase and is shown to induce hepatic FXR and inhibit CYP7A1 expression. Mice carrying Desulfovibrionales present induction of hepatic expression of cholesterol transporters Abcg5/g8 to promote biliary secretion of cholesterol as well. Our study demonstrates the role of gut microbiota, Desulfovibrionales, as an environmental regulator contributing to gallstone formation through its influence on bile acid and cholesterol metabolism.

Bibliographic Details

Hu, Hai; Shao, Wentao; Liu, Qian; Liu, Ning; Wang, Qihan; Xu, Jin; Zhang, Xin; Weng, Zhenkun; Lu, Qifan; Jiao, Long; Chen, Chaobo; Sun, Haidong; Jiang, Zhaoyan; Zhang, Xiaoping; Gu, Aihua

Springer Science and Business Media LLC

Chemistry; Biochemistry, Genetics and Molecular Biology; Physics and Astronomy

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