The prebiotics 2′-fucosyllactose prevent high-fat diet induced obesity via the promotion of thermogenesis and modulation of gut microbiota
2024
Tiange Li | Xiaoxia Lin | Xueying Mao | Siru Chen | Zhiqiang Feng | Yankun Fu | Peijun Zhao | Xianqing Huang | Yan Ma | Lianjun Song | Qiuyan Zhao | Tianlin Wang
2′-fucosyllactose (2′-FL) is one of the most prevalent milk oligosaccharides. In this study, the anti-obesity effect of 2′-FL was explored in high-fat diet (HFD)-fed mice. Results showed that 2′-FL alleviated body weight gain, improved serum lipid profiles and increased energy expenditure. Under cold exposure, 2′-FL group showed higher body and rectal temperature, improving adaptive thermogenesis. 2′-FL alleviated lipid accumulation, increased mitochondrial DNA content, as well as upregulated the protein expression of thermogenic markers including UCP1, PRDM16, PGC-1α and the phosphorylation of AMPK in both white and brown adipose tissue. 2′-FL also increased the diversity of gut microbiota in HFD mice. The Bacteroides/Firmicutes ratio, and the Bifidobacterium abundance were increased, while Lachnospiraceae abundance was decreased after 2′-FL treatment. Moreover, 2′-FL to HFD mice altered the bile acid profiles at levels comparable to normal diet group. These results indicates that 2′-FL promotes thermogenesis and modulates gut microbiota to alleviate obesity.
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