An Epigenome-Wide Association Study of Obesity-Related Traits.

TitleAn Epigenome-Wide Association Study of Obesity-Related Traits.
Publication TypeJournal Article
Year of Publication2018
AuthorsDhana, K, Braun, KVE, Nano, J, Voortman, T, Demerath, EW, Guan, W, Fornage, M, van Meurs, JBJ, Uitterlinden, AG, Hofman, A, Franco, OH, Dehghan, A
JournalAm J Epidemiol
Volume187
Issue8
Pagination1662-1669
Date Published2018 08 01
ISSN1476-6256
KeywordsAmino Acyl-tRNA Synthetases, Biomarkers, CpG Islands, DNA Methylation, Epigenomics, Female, Genome-Wide Association Study, Humans, Male, Middle Aged, Netherlands, Obesity, Phenotype, Prospective Studies, RNA-Binding Proteins, United States
Abstract

We conducted an epigenome-wide association study on obesity-related traits. We used data from 2 prospective, population-based cohort studies: the Rotterdam Study (RS) (2006-2013) and the Atherosclerosis Risk in Communities (ARIC) Study (1990-1992). We used the RS (n = 1,450) as the discovery panel and the ARIC Study (n = 2,097) as the replication panel. Linear mixed-effect models were used to assess the cross-sectional associations between genome-wide DNA methylation in leukocytes and body mass index (BMI) and waist circumference (WC), adjusting for sex, age, smoking, leukocyte proportions, array number, and position on array. The latter 2 variables were modeled as random effects. Fourteen 5'-C-phosphate-G-3' (CpG) sites were associated with BMI and 26 CpG sites with WC in the RS after Bonferroni correction (P

DOI10.1093/aje/kwy025
Alternate JournalAm J Epidemiol
PubMed ID29762635
PubMed Central IDPMC6070087

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