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Pathophysiology of Eosinophilic Gastrointestinal Disorders Yoshikazu KINOSHITA 1 , Tsuyoshi SANUKI 1 1Hyogo-Prefectural Harima-Himeji General Medical Center, Hyogo, Japan Keyword: eosinophilic esophagitis , eosinophilic gastroenteritis , allergy , inflammation , mast cell pp.1336-1342
Published Date 2022/8/25
DOI https://doi.org/10.24479/endo.0000000283
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 The pathophysiology of eosinophilic gastrointestinal disorders (EGID) is not yet fully understood. However, continuous chronic allergic inflammation against the exogenous allergens, including mainly food-contained antigens, is considered to be the main cause of EGID. The disease can be found in any segment of the gastrointestinal tract and is frequently found in more than two segments. Therefore, the disease may have a common pathophysiology, even if the inflammation occurs in any segment of the gastrointestinal tract. The involvement of innate immune reaction, including ILC2 and exaggerated adoptive Th2 immune reaction, may be the main pathophysiology of EGID. Eosinophilic esophagitis and eosinophilic gastroenteritis, which are observed in different segments of the gastrointestinal tracts covered with squamous epithelium or columnar epithelium respectively, may have partially unique pathophysiology. Indeed, eosinophilic esophagitis can be observed mainly in young males, while eosinophilic gastroenteritis can be found in any age group and in any gender.


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電子版ISSN 印刷版ISSN 0915-3217 東京医学社

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