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Role of the Gut Microbiota in the Pathogenesis of Inflammatory Bowel Disease Akira Andoh 1 , Takayuki Imai 1 , Atsushi Nishida 1 1Department of Medicine, Shiga University of Medical Science, Otsu, Japan Keyword: 炎症性腸疾患 , 酪酸 , 粘液 , Th17細胞 , dysbiosis pp.1331-1338
Published Date 2024/10/25
DOI https://doi.org/10.11477/mf.1403203731
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 The gut microbiota plays a crucial role in the pathogenesis of inflammatory bowel disease(IBD). For instance, IBD-like experimental colitis, occurring spontaneously in knockout mice with various immune-related genes, fails to develop in a sterile environment. Furthermore, IBD lesions predominantly develop from the terminal ileum to the large intestine, where the intestinal bacteria are abundant. These findings support the notion that an abnormal immune response to the gut microbiota may greatly contribute to the pathogenesis of IBD. The changes in the gut microbiota(dysbiosis)in IBD are characterized by a reduction in butyrate-producing bacteria(Faecalibacterium, Roseburia, Ruminococcus, and so on)and an increase in Pseudomonadota(Proteobacteria)(Enterobacteriaceae and so on). These alterations result in reduced intraluminal butyrate production and abnormal induction of regulatory T cells, thereby contributing to the onset and persistence of IBD.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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