期刊
FOOD & FUNCTION
卷 13, 期 14, 页码 7707-7719出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2fo00569g
关键词
-
资金
- National Natural Science Foundation of China [31901703, 32160530, 32072257]
- China Postdoctoral Science Foundation [2020M671974]
- Natural Science Foundation of Jiangxi Province [20202BAB215015]
- Central Government Guide Local Special Fund Project for Scientific and Technological Development of Jiangxi Province [20212ZDD02008]
- Jiangxi Research Project Funding for Selected Postdoc [2020KY07]
This study found that arabinoxylan extracted from rice bran (RAX) can alleviate obesity induced by a high-fat diet. RAX reduces lipid accumulation and inflammation, while also modulating the gut microbiota and short-chain fatty acid production. These findings suggest that RAX may be a potential therapeutic option for preventing and treating obesity.
Rice bran is an important by-product of the milling industry. Arabinoxylan extracted from rice bran (RAX) is available in large quantities and is structurally different from other arabinoxylans from cereals. The anti-obesity effects of RAX and the role of microbiota have not been studied. In this work, we investigated the beneficial effects of RAX in C57BL/6J mice fed a high-fat diet (HFD). We found that supplementation of RAX significantly ameliorated HFD-induced obesity. RAX decreased HFD induced lipid accumulation and regulated genes related to hepatic fatty acid metabolism. Regulated lipid metabolism is associated with reduced systemic inflammation as indicated by TNF-alpha and IL-6. RAX normalized the gut microbiota and its major metabolites short-chain fatty acids (SCFAs). RAX restored the alpha diversity of the gut microbiota and increased the relative abundance of anti-inflammatory bacteria including Bifidobacterium and Akkermansia. RAX decreased pro-inflammatory bacteria including Anaerotruncus, Helicobacter, Coprococcus, and Desulfovibrio. Our results suggest that systemic inflammation bridges to the gut microbiota through LPS and SCFAs. RAX modulates the gut microbiota and SCFA production in the large intestine, thereby reducing systemic inflammation and ameliorating obesity. In brief, RAX prevented obesity through a mechanism related to the modulation of the microbiota and its metabolites.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据