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Article Publish Status: FREE
Abstract Title:

Polysaccharides fromRamat ameliorate colitis rats by modulating the intestinal microbiota community.

Abstract Source:

Oncotarget. 2017 Oct 6 ;8(46):80790-80803. Epub 2017 Aug 24. PMID: 29113344

Abstract Author(s):

Jin-Hua Tao, Jin-Ao Duan, Shu Jiang, Nan-Nan Feng, Wen-Qian Qiu, Yong Ling

Article Affiliation:

Jin-Hua Tao

Abstract:

The gut microflora dysbiosis has been closely related with the inflammatory bowel disease (IBD). In this study, the effect of polysaccharides fromRamat on the gut microbiota was evaluated by ulcerative colitis (UC) rat model. Physiological and pathological analyses suggested that Chrysanthemum polysaccharides possessed notably protective effects on UC. Based on the Illumina MiSeq platform, 16S rRNA sequencing of the rat colonic contents indicated that the intestinal flora structure remarkably changed in the model rats and the tendency was alleviated to a certain degree by treatment with different dosages of Chrysanthemum polysaccharides. In normal groups, there were morethan, but this change lost at the pathological state. Following Chrysanthemum polysaccharides, rising/ratio was validated. Besides the microbial diversity and the community richness of the UC rats were improved by Chrysanthemum polysaccharides, the composition of intestinal microflora in the model group were also restored after oral administration of Chrysanthemum polysaccharides. The abundance of opportunistic pathogens was decreased (and), while the levels of protective bacteria such asand(butyrate-producing bacteria),and(probiotics),andelevated in various degrees. Correlation analysis between intestinal flora and biochemical factors suggested that the relative abundance of protective bacteria was positively correlated with the levels of anti-inflammatory cytokines such as IL-4, IL-10 and IL-11, while aggressive bacteria were positively correlated with proinflammatory cytokine such as IL-23、IL-6、 IF-17、TNF-α、IL-1β and IFN-γ. The above results showed that the intestinal flora were closely related to the secretion and expression of cytokines in the body, and they interacted with each other to regulate immune function. Thus, Chrysanthemum polysaccharides could ameliorate ulcerative colitis by fostering beneficial intestinal flora growth, modulating the balance of intestinal microecology and restoring the immune system.

Study Type : Animal Study

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