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BRAIN and NERVE Volume 68, Issue 6 （June 2016）

BRAIN and NERVE 68巻6号（2016年6月発行）

Japanese English

特集脳とフローラ

過敏性腸症候群・情動の制御と腸内細菌 Irritable Bowel Syndrome, Emotion Regulation, and Gut Microbiota 福土審 ¹ Shin Fukudo ¹ ¹東北大学大学院医学系研究科行動医学 ¹Department of Behavioral Medicine, Tohoku University Graduate School of Medicine キーワード：脳腸相関 , 腸内細菌 , 過敏性腸症候群 , 感染性腸炎後過敏性腸症候群 , プロバイオティクス , brain-gut interactions , gut microbiota , irritable bowel syndrome (IBS) , post-infectious irritable bowel syndrome (PI-IBS) , probiotics Keyword: 脳腸相関 , 腸内細菌 , 過敏性腸症候群 , 感染性腸炎後過敏性腸症候群 , プロバイオティクス , brain-gut interactions , gut microbiota , irritable bowel syndrome (IBS) , post-infectious irritable bowel syndrome (PI-IBS) , probiotics pp.607-615

発行日 2016年6月1日 Published Date 2016/6/1

DOI https://doi.org/10.11477/mf.1416200448

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参考文献 Reference

過敏性腸症候群（IBS）とは，腹痛・腹部不快感と便通異常が持続する状態である。IBSにおいては，感染性腸炎後の発症，ストレスによる細菌叢の変化，粘膜透過性亢進，腸内細菌異常増殖，腸内細菌の特徴とその産物の役割，脳腸相関を介する生体の変化が検討されている。IBSと腸内細菌の関係を証明する報告は増加しており，それがIBS診療に大いに役立つことが期待される。

Abstract

Irritable bowel syndrome (IBS) is defined as a representative functional gastrointestinal disorder which is characterized by chronic or recurrent abdominal pain and/or abdominal discomfort associated with abnormal bowel movement. Gut microbiota are related to the pathophysiology of IBS. In the field of IBS, post-infectious etiology, stress-induced alteration of microbiota, increased mucosal permeability, bacterial overgrowth, disease-specific microbiota, microbial products, and brain-gut interactions are being investigated. In some individuals, IBS develops after recovery from acute gastroenteritis known as post-infectious IBS. Gut microbiota in IBS patients differ from those in healthy individuals, and the profiles of gut microbiota in IBS patients also vary among IBS patients with constipation, diarrhea, and mixed subtypes. In Japan, gut microbiota in IBS patients also differ from those observed in healthy individuals, and organic acid by-products observed in the patients correlated with symptoms, quality of life, and alexithymia. Further research on gut microbiota in IBS patients is warranted.