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Epigenome-wide association study of DNA methylation and adult asthma in the agricultural lung health study
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 4652509
Author(s) Hoang, T. T.; Sikdar, S.; Xu, C. J.; Lee, M. K.; Cardwell, J.; Forno, E.; Imboden, M.; Jeong, A.; Madore, A. M.; Qi, C.; Wang, T.; Bennett, B. D.; Ward, J. M.; Parks, C. G.; Beane-Freeman, L. E.; King, D.; Motsinger-Reif, A.; Umbach, D. M.; Wyss, A. B.; Schwartz, D. A.; Celedon, J. C.; Laprise, C.; Ober, C.; Probst-Hensch, N.; Yang, I. V.; Koppelman, G. H.; London, S. J.
Author(s) at UniBasel Imboden, Medea
Jeong, Ayoung
Probst Hensch, Nicole
Year 2020
Title Epigenome-wide association study of DNA methylation and adult asthma in the agricultural lung health study
Journal Eur Respir J
Volume 56
Number 3
Pages / Article-Number 2000217
Mesh terms Adult; Asthma, genetics; Case-Control Studies; Child; CpG Islands; DNA Methylation; Epigenesis, Genetic; Epigenome; Genome-Wide Association Study; Humans; Lung; United States
Abstract Epigenome-wide studies of methylation in children support a role for epigenetic mechanisms in asthma. Studies in adults are rare, and few have examined non-atopic asthma. We conducted the largest epigenome-wide association study of blood DNA methylation in adults in relation to non-atopic and atopic asthma.We measured DNA methylation in blood using the Illumina MethylationEPIC array among 2286 participants in a case-control study of current adult asthma nested within a U.S. agricultural cohort. Atopy was defined by serum specific immunoglobulin E. Participants were categorised as atopy without asthma (n=185), non-atopic asthma (n=673), atopic asthma (n=271), or a reference group of neither atopy nor asthma (n=1157). Analyses were conducted using logistic regression.No associations were observed with atopy without asthma. Numerous CpGs were differentially methylated in non-atopic asthma (8 at family-wise error rate [FWER] p<9x10(-8); 524 at False Discovery Rate [FDR]<0.05) and implicated 382 novel genes. More CpGs were identified in atopic asthma (181 at FWER; 1086 at FDR) and implicated 569 novel genes. 104 FDR CpGs overlapped. 35% of CpGs in non-atopic asthma and 91% in atopic asthma replicated in studies of whole blood, eosinophils, airway epithelium, or nasal epithelium. Implicated genes were enriched in pathways related to the nervous system or inflammation.We identified numerous, distinct differentially methylated CpGs in non-atopic and atopic asthma. Many CpGs from blood replicated in asthma-relevant tissues. These circulating biomarkers reflect risk and sequelae of disease and implicate novel genes associated with non-atopic and atopic asthma.
ISSN/ISBN 1399-3003 (Electronic)0903-1936 (Linking)
edoc-URL https://edoc.unibas.ch/91159/
Full Text on edoc No
Digital Object Identifier DOI 10.1183/13993003.00217-2020
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/32381493
ISI-Number WOS:000571572000023
Document type (ISI) Journal Article
 
   

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