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KMID : 1225720220140010008
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Allergy, Asthma & Immunology Research : AAIR
2022 Volume.14 No. 1 p.8 ~ p.20
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Origin of Allergy From In Utero Exposures to the Postnatal Environment
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Hui-Beckman Jessica
Kim Byung-Eui
Leung Donald Y. M.
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Abstract
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As the incidence of atopic conditions continues to increase, emphasis has been placed on understanding the origin of allergy with hope that prevention measures can be achieved. The perinatal environment is important for this understanding, given that both the immune system and microbiome start forming prenatally. Maternal exposure can greatly impact on fetal health. Additionally, the dysfunctional epithelial barrier is influential in allowing allergens and irritants to penetrate the skin or mucosa, leading to the release of proinflammatory cytokines and mediators to drive type 2 tissue inflammation and the onset of allergy. There are numerous factors related to skin, airway, and gut epithelial barriers dysfunction, and genetic predispositions are also present. Comprehensive birth cohort studies and further mechanistic studies will be keys to understanding the origin of allergy.
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KEYWORD
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Allergy, dermatitis, atopic, food allergy, asthma, immune system, microbiome, allergens, cytokines, etiology
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