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The Protective Effects of Ginseng Polysaccharides and Their Effective Subfraction against Dextran Sodium Sulfate-Induced Colitis

文献类型： 外文期刊

作者： Li, Shanshan;Huo, Xiaohui;Qi, Yuli;Ren, Duoduo;Li, Zhiman;Qu, Di;Sun, Yinshi

作者机构：

关键词： gut microbiota;colitis;Panax ginseng polysaccharides;pectin;short-chain fatty acids

期刊名称： FOODS

ISSN：

年卷期： 2022 年 11 卷 6 期

页码：

收录情况： JCR（2021版）

摘要： Polysaccharides from Panax ginseng are natural carbohydrates with multiple activities. However, little was known about its functions on colitis. In this study, we aim to investigate the protective effects of ginseng polysaccharides and its effective subfraction on dextran sodium sulfate (DSS)-induced colitis. Water soluble ginseng polysaccharides (WGP) were obtained from dry ginseng root, then purified to neutral fraction (WGPN) and acidic fraction (WGPA) by ion exchange chromatography. An animal model was constructed with male Wistar rats, which were treated with a normal diet (con group), DSS (DSS group), WGP (WGP group), WGPN (WGPN group), and WGPA (WGPA group), respectively. Both WGP and WGPA alleviated the colitis symptoms and colon structure changes of colitis rats. They decreased the disease activity index (DAI) scores and improved colon health; reduced colon damage and recovered the intestinal barrier via regulating the tightjunction-related proteins (ZO-1 and Occludin); downregulated inflammatory cytokines (IL-1 beta, IL-2, IL-6, and IL-17) and inhibited the TLR4/MyD88/NF-kappa B-signaling pathway in the colon; regulated the diversity and composition of gut microbiota, especially the relative abundance of Ruminococcus; enhanced the production of SCFAs. In conclusion, WGP exerted a protective effect against colitis with its acidic fraction (WGPA) as an effective fraction. The results support the utilization and investigation of ginseng polysaccharides as a potential intervention strategy for the prevention of colitis.

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