Berberine Ameliorates DSS-Induced Colitis via Regulation of Mucosal Barrier Homeostasis and Mucin-Degrading Microbiota
Abstract
Berberine, a benzyl isoquinoline alkaloid, is used in food for its diverse spectrum of biological activities. Inflammatory bowel disease (IBD) is a widespread condition characterized by frequent occurrence and limited therapeutic success. Berberine has been shown to alleviate colitis through enhancement of the intestinal barrier and modulation of gut microbial balance. However, the further mutualistic balance mechanism between microbes and the mucus of berberine in alleviating IBD still needs to be clarified. Our findings demonstrated a strong association between berberine's therapeutic efficacy and alterations in the gut microbiota. This includes enhancements in the level of IgA-coated bacteria, Zg16, Reg3g, and Pla2g2a, all of which contribute to microbiota homeostasis. Moreover, the beneficial effect on gut barrier function of berberine was mostly attributed to Akkermansiam and Bacteriodes-associated mucin-SCFA metabolism. This study lays a critical groundwork for the development of berberine-based functional food additives that harness its nutraceutical potential.
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