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19. Therapeutic Effects of Valeriana jatamansion Ulcerative Colitis: Insights into Mechanisms of Action through Metabolomics and Microbiome Analysis

Author

Wang, Lixia, Zhang, Hai, Tang, Fei, Yan, Hongling, Feng, Wuwen, Liu, Juan, Wang, Yulan, Tan, Yuzhu, and Chen, Hulan

Abstract

Ulcerative colitis (UC), belonging to inflammatory bowel disease (IBD), is a chronic and relapsing inflammatory disorder of the gastrointestinal tract, which has not been completely cured in patients so far. Valeriana jatamansiis a Chinese medicine used clinically to treat “diarrhea,” which is closely related to UC. This study was to elucidate the therapeutic effects of V. jatamansiextract (VJE) on dextran sodium sulfate (DSS)-induced UC in mice and its underlying mechanism. In this work, VJE effectively ameliorates the symptoms and histopathological scores and reduces the production of inflammatory factors in UC mice. The colon untargeted metabolomics analysis and 16S rDNA sequencing showed remarkable differences in colon metabolite profiles and intestinal microbiome composition between the control and DSS groups, and VJE intervention can reduce these differences. Thirty-two biomarkers were found and modulated the primary pathways including pyrimidine metabolism, arginine biosynthesis, and glutathione metabolism. Meanwhile, twelve significant taxa of gut microbiota were found. Moreover, there is a close relationship between endogenous metabolites and intestinal flora. These findings suggested that VJE ameliorates UC by inhibiting inflammatory factors, recovering intestinal maladjustment, and regulating the interaction between intestinal microbiota and host metabolites. Therefore, the intervention of V. jatamansiis a potential therapeutic treatment for UC.

Published
2023
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