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A multi-ethnic epigenome-wide association study of leukocyte DNA methylation and blood lipids
Univ Michigan, Sch Publ Hlth, Dept Epidemiol, Ann Arbor, MI 48109 USA.;Stanford Univ, Sch Med, Dept Med, Stanford, CA 94305 USA..
NHLBI, Populat Sci Branch, NIH, Bldg 10, Bethesda, MD 20892 USA.;Boston Childrens Hosp, Dept Cardiol, Boston, MA USA..
German Res Ctr Environm Hlth, Inst Epidemiol, Res Unit Mol Epidemiol, Helmholtz Zentrum Munchen, Munich, Germany.;German Res Ctr Environm Hlth, Inst Epidemiol, Helmholtz Zentrum Munchen, Munich, Germany..ORCID iD: 0000-0001-6135-3764
Univ N Carolina, Dept Epidemiol, Chapel Hill, NC 27515 USA..
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2021 (English)In: Nature Communications, E-ISSN 2041-1723, Vol. 12, no 1, article id 3987Article in journal (Refereed) Published
Abstract [en]

Here we examine the association between DNA methylation in circulating leukocytes and blood lipids in a multi-ethnic sample of 16,265 subjects. We identify 148, 35, and 4 novel associations among Europeans, African Americans, and Hispanics, respectively, and an additional 186 novel associations through a trans-ethnic meta-analysis. We observe a high concordance in the direction of effects across racial/ethnic groups, a high correlation of effect sizes between high-density lipoprotein and triglycerides, a modest overlap of associations with epigenome-wide association studies of other cardio-metabolic traits, and a largely non-overlap with lipid loci identified to date through genome-wide association studies. Thirty CpGs reached significance in at least 2 racial/ethnic groups including 7 that showed association with the expression of an annotated gene. CpGs annotated to CPT1A showed evidence of being influenced by triglycerides levels. DNA methylation levels of circulating leukocytes show robust and consistent association with blood lipid levels across multiple racial/ethnic groups. Abnormal blood lipid levels are important risk factors for cardiovascular and other various diseases. Here the authors conduct a large-scale multi-ethnic epigenome-wide association study combined with epigenetic (cis-QTL and eQTM) data, and identify CpG-lipid traits associations that are specific to or common across racial/ethnic groups.

Place, publisher, year, edition, pages
NATURE RESEARCH Springer Nature, 2021. Vol. 12, no 1, article id 3987
National Category
Medical Genetics and Genomics
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URN: urn:nbn:se:uu:diva-451570DOI: 10.1038/s41467-021-23899-yISI: 000669943800001PubMedID: 34183656OAI: oai:DiVA.org:uu-451570DiVA, id: diva2:1594816
Funder
EU, FP7, Seventh Framework ProgrammeSwedish Research Council, 2012-1397Knut and Alice Wallenberg Foundation, 2013.0126Swedish Heart Lung Foundation, 20140422Available from: 2021-09-16 Created: 2021-09-16 Last updated: 2025-02-10Bibliographically approved

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Hedman, Åsa KGustafsson, StefanLind, LarsIngelsson, Erik

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