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Prenatal mold exposure is associated with development of atopic dermatitis in infants through allergic inflammation

Authors
 Eun Lee  ;  Kil Yong Choi  ;  Mi-Jin Kang  ;  So-Yeon Lee  ;  Jisun Yoon  ;  Hyun-Ju Cho  ;  Sungsu Jung  ;  Si Hyeon Lee  ;  Dong In Suh  ;  Youn Ho Shin  ;  Kyung Won Kim  ;  Kangmo Ahn  ;  Soo-Jong Hong 
Citation
 JORNAL DE PEDIATRIA, Vol.96(1) : 125-131, 2020-02 
Journal Title
 JORNAL DE PEDIATRIA 
ISSN
 0021-7557 
Issue Date
2020-02
MeSH
Asthma* ; Child ; Cohort Studies ; Dermatitis, Atopic* / etiology ; Female ; Fungi ; Humans ; Infant ; Inflammation / etiology* ; Odds Ratio ; Pregnancy
Keywords
Allergic inflammation ; Ambiente ; Atopic dermatitis ; Dermatite atópica ; Environment ; Microbioma ; Mofo ; Mold ; Mycobiome ; Prenatal ; Pré-natal ; Reação alérgica
Abstract
Objective: Mold exposure in early life may be associated with development of atopic dermatitis; however, studies of this link are inconclusive and evidence for the underlying mechanism(s) is lacking. This study identified the association between the time of mold exposure and development of atopic dermatitis and investigated the underlying mechanisms. Method: The association between atopic dermatitis and mold exposure was examined in the Cohort for Childhood Origin of Asthma and Allergic Diseases birth cohort study (n=1446). Atopic dermatitis was diagnosed at 1 year of age by pediatric allergists. Exposure to mold was assessed by questionnaire. The Illumina MiSeq platform was used to examine the environmental mycobiome in 20 randomly selected healthy infants and 20 infants with atopic dermatitis at 36 weeks of gestation. Results: Prenatal, but not postnatal, mold exposure was significantly associated with atopic dermatitis (adjusted odds ratio, 1.36; 95% confidence interval, 1.01-1.83). Levels of total serum IgE at 1 year of age were higher in infants with atopic dermatitis exposed to mold during pregnancy than in healthy infants not exposed to mold during pregnancy (p=0.021). The relative abundance of uncultured Ascomycota was higher in infants with atopic dermatitis than in healthy infants. The relative abundance of uncultured Ascomycota correlated with total serum IgE levels at 1 year of age (r=0.613, p<0.001). Conclusion: Indoor mold exposure during the fetal period is associated with development of atopic dermatitis via IgE-mediated allergic inflammation. Avoidance of mold exposure during this critical period might prevent the development of atopic dermatitis.
Full Text
https://www.sciencedirect.com/science/article/pii/S0021755718303735
DOI
10.1016/j.jped.2018.07.012
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Won(김경원) ORCID logo https://orcid.org/0000-0003-4529-6135
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/180495
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