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Abstract Title:

Melatonin reprogramming of gut microbiota improves lipid dysmetabolism in high fat diet-fed mice.

Abstract Source:

J Pineal Res. 2018 Sep 19:e12524. Epub 2018 Sep 19. PMID: 30230594

Abstract Author(s):

Jie Yin, Yuying Li, Hui Han, Shuai Chen, Jing Gao, Gang Liu, Xin Wu, Jinping Deng, Qifang Yu, Xingguo Huang, Rejun Fang, Tiejun Li, Russel J Reiter, Dong Zhang, Congrui Zhu, Guoqiang Zhu, Wenkai Ren, Yulong Yin

Article Affiliation:

Jie Yin

Abstract:

Melatonin has been shown to improve lipid metabolism and gut microbiota communities in animals and humans; however, it remains to know whether melatonin prevents obesity through gut microbiota. Here, we found that high fat diet promoted the lipid accumulation and intestinal microbiota dysbiosis in mice, while oral melatonin supplementation alleviated the lipid accumulation, and reversed gut microbiota dysbiosis, including the diversity of intestinal microbiota, relative abundances of Bacteroides and Alistipes, and functional profiling of microbial communities, such as energy metabolism, lipid metabolism, and carbohydrate metabolism. Interestingly, melatonin failed to alleviate the high fat-induced lipid accumulation in antibiotic-treated mice; however, microbiota transplantation from melatonin-treated mice alleviated high fat diet-induced lipid metabolic disorders. Notably, short-chain fatty acids were decreased in high fat diet-fed mice, while melatonin treatment improved the production of acetic acid. Correlation analysis found a marked correlation between production of acetic acid and relative abundances of Bacteroides and Alistipes. Importantly, sodium acetate treatment also alleviated high fat diet-induced lipid metabolic disorders. Taken together, our results suggest that melatonin improves lipid metabolism in high fat diet-fed mice and the potential mechanisms may be associated with reprogramming gut microbiota, especially, Bacteroides and Alistipes-mediated acetic acid production. Future studies are needed for patients with metabolic syndrome to fully understand melatonin's effects on body weight and lipid profiles and the potential mechanism of gut microbiota. This article is protected by copyright. All rights reserved.

Study Type : Animal Study

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Sayer Ji
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