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KMID : 0931320200200010029
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대한상부위장관.헬리코박터학회지
2020 Volume.20 No. 1 p.29 ~ p.37
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Helicobacter pylori and Immune-mediated Disorders
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Park Jae-Yong
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Abstract
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Recently, many studies have reported the potential association of Helicobacter pylori (H. pylori) with various extragastric diseases. H. pylori, a major component of the gastric microbiota, is in symbiosis with humans. It is, therefore, assumed to potentially influence immune homeostasis in humans to some extent. There are several reports highlighting the possible association of H. pylori with allergic diseases. However, these were mainly based on cross-sectional or epidemiological studies. With a greater emphasis on the effects of human microbiota on host immunity and disease development, studies have attempted to explain the association between H. pylori infection and allergic diseases. Nevertheless, no concrete evidence for a causal relationship has been clearly demonstrated yet. The association of H. pylori infection with autoimmune disorders has also been reported in the literature. It has been hypothesized that environmental triggers act on genetically vulnerable hosts, leading to autoimmune disorders. The role of H. pylori infection as one of the triggers in autoimmune diseases has been explored previously. However, the results were conflicting and indistinct with respect to most autoimmune diseases. Similar findings were also detected in skin disorders where H. pylori infection was deemed to be a causative factor. The role of H. pylori in majority of the immune-mediated disorders or skin disorders remains controversial. In this review, the association of H. pylori with various immune-mediated disorders and skin disorders is discussed. The epidemiological, serological, and experimental evidences relevant to the aforementioned association are also addressed.
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KEYWORD
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Allergy and immunology, Autoimmune diseases, Helicobacter pylori, Skin diseases
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