Ginsenoside Rk3 alleviates gut microbiota dysbiosis and colonic inflammation in antibiotic-treated mice.

Food Research International
Xue BaiDaidi Fan

Abstract

Ginsenoside Rk3 is a natural prebiotic found in ginseng, has excellent pharmacological efficacy, especially antitumor effects, and can greatly benefit human health. Here, we investigated the impact of Rk3 intake on modulation of the gut microbiota and their metabolites as well as its effect on low-grade inflammation in mice. C57BL/6JFandd mice were administered different doses of Rk3 for two weeks after establishment of an antibiotic-mediated gut microbiota disturbance model. Interestingly, Rk3 intake induced substantial changes in the gut microbiota composition, enriched the Bacteroides, Alloprevotella and Blautia genera, and effectively ameliorated gut microbiota dysbiosis, with significantly decreased Firmicutes/Bacteroidetes ratios. These changes were accompanied by beneficial alterations in gut microbiota diversity and improved short-chain fatty acid levels. In addition, we found that Rk3 intervention repaired intestinal barrier dysfunction by increasing the expression of tight junction proteins (ZO-1, Occludin and Claudin-1), reducing colonic inflammatory cytokine levels, and suppressing TNF-α, IL-1β, and IL-6 overproduction. In conclusion, Rk3 improves intestinal inflammation and induces potentially beneficial changes in...Continue Reading

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