PMID- 24014485 OWN - NLM STAT- MEDLINE DCOM- 20140805 LR - 20211021 IS - 1460-2083 (Electronic) IS - 0964-6906 (Print) IS - 0964-6906 (Linking) VI - 23 IP - 2 DP - 2014 Jan 15 TI - Epigenetics meets metabolomics: an epigenome-wide association study with blood serum metabolic traits. PG - 534-45 LID - 10.1093/hmg/ddt430 [doi] AB - Previously, we reported strong influences of genetic variants on metabolic phenotypes, some of them with clinical relevance. Here, we hypothesize that DNA methylation may have an important and potentially independent effect on human metabolism. To test this hypothesis, we conducted what is to the best of our knowledge the first epigenome-wide association study (EWAS) between DNA methylation and metabolic traits (metabotypes) in human blood. We assess 649 blood metabolic traits from 1814 participants of the Kooperative Gesundheitsforschung in der Region Augsburg (KORA) population study for association with methylation of 457 004 CpG sites, determined on the Infinium HumanMethylation450 BeadChip platform. Using the EWAS approach, we identified two types of methylome-metabotype associations. One type is driven by an underlying genetic effect; the other type is independent of genetic variation and potentially driven by common environmental and life-style-dependent factors. We report eight CpG loci at genome-wide significance that have a genetic variant as confounder (P = 3.9 x 10(-20) to 2.0 x 10(-108), r(2) = 0.036 to 0.221). Seven loci display CpG site-specific associations to metabotypes, but do not exhibit any underlying genetic signals (P = 9.2 x 10(-14) to 2.7 x 10(-27), r(2) = 0.008 to 0.107). We further identify several groups of CpG loci that associate with a same metabotype, such as 4-vinylphenol sulfate and 4-androsten-3-beta,17-beta-diol disulfate. In these cases, the association between CpG-methylation and metabotype is likely the result of a common external environmental factor, including smoking. Our study shows that analysis of EWAS with large numbers of metabolic traits in large population cohorts are, in principle, feasible. Taken together, our data suggest that DNA methylation plays an important role in regulating human metabolism. FAU - Petersen, Ann-Kristin AU - Petersen AK AD - Institute of Genetic Epidemiology. FAU - Zeilinger, Sonja AU - Zeilinger S FAU - Kastenmuller, Gabi AU - Kastenmuller G FAU - Romisch-Margl, Werner AU - Romisch-Margl W FAU - Brugger, Markus AU - Brugger M FAU - Peters, Annette AU - Peters A FAU - Meisinger, Christine AU - Meisinger C FAU - Strauch, Konstantin AU - Strauch K FAU - Hengstenberg, Christian AU - Hengstenberg C FAU - Pagel, Philipp AU - Pagel P FAU - Huber, Fritz AU - Huber F FAU - Mohney, Robert P AU - Mohney RP FAU - Grallert, Harald AU - Grallert H FAU - Illig, Thomas AU - Illig T FAU - Adamski, Jerzy AU - Adamski J FAU - Waldenberger, Melanie AU - Waldenberger M FAU - Gieger, Christian AU - Gieger C FAU - Suhre, Karsten AU - Suhre K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130906 PL - England TA - Hum Mol Genet JT - Human molecular genetics JID - 9208958 SB - IM MH - Adult MH - Aged MH - Blood/*metabolism MH - CpG Islands MH - *DNA Methylation MH - *Epigenesis, Genetic MH - Female MH - Gene Expression Regulation MH - Gene-Environment Interaction MH - Genetic Variation MH - Genome, Human MH - *Genome-Wide Association Study MH - Humans MH - Male MH - *Metabolome MH - Metabolomics MH - Middle Aged MH - Quantitative Trait Loci MH - Smoking/genetics PMC - PMC3869358 EDAT- 2013/09/10 06:00 MHDA- 2014/08/06 06:00 PMCR- 2013/09/06 CRDT- 2013/09/10 06:00 PHST- 2013/09/10 06:00 [entrez] PHST- 2013/09/10 06:00 [pubmed] PHST- 2014/08/06 06:00 [medline] PHST- 2013/09/06 00:00 [pmc-release] AID - ddt430 [pii] AID - 10.1093/hmg/ddt430 [doi] PST - ppublish SO - Hum Mol Genet. 2014 Jan 15;23(2):534-45. doi: 10.1093/hmg/ddt430. Epub 2013 Sep 6.