PMID- 29399631 OWN - NLM STAT- MEDLINE DCOM- 20190904 LR - 20231105 IS - 2375-2548 (Electronic) IS - 2375-2548 (Linking) VI - 4 IP - 1 DP - 2018 Jan TI - DNA methylation as a mediator of the association between prenatal adversity and risk factors for metabolic disease in adulthood. PG - eaao4364 LID - 10.1126/sciadv.aao4364 [doi] LID - eaao4364 AB - Although it is assumed that epigenetic mechanisms, such as changes in DNA methylation (DNAm), underlie the relationship between adverse intrauterine conditions and adult metabolic health, evidence from human studies remains scarce. Therefore, we evaluated whether DNAm in whole blood mediated the association between prenatal famine exposure and metabolic health in 422 individuals exposed to famine in utero and 463 (sibling) controls. We implemented a two-step analysis, namely, a genome-wide exploration across 342,596 cytosine-phosphate-guanine dinucleotides (CpGs) for potential mediators of the association between prenatal famine exposure and adult body mass index (BMI), serum triglycerides (TG), or glucose concentrations, which was followed by formal mediation analysis. DNAm mediated the association of prenatal famine exposure with adult BMI and TG but not with glucose. DNAm at PIM3 (cg09349128), a gene involved in energy metabolism, mediated 13.4% [95% confidence interval (CI), 5 to 28%] of the association between famine exposure and BMI. DNAm at six CpGs, including TXNIP (cg19693031), influencing beta cell function, and ABCG1 (cg07397296), affecting lipid metabolism, together mediated 80% (95% CI, 38.5 to 100%) of the association between famine exposure and TG. Analyses restricted to those exposed to famine during early gestation identified additional CpGs mediating the relationship with TG near PFKFB3 (glycolysis) and METTL8 (adipogenesis). DNAm at the CpGs involved was associated with gene expression in an external data set and correlated with DNAm levels in fat depots in additional postmortem data. Our data are consistent with the hypothesis that epigenetic mechanisms mediate the influence of transient adverse environmental factors in early life on long-term metabolic health. The specific mechanism awaits elucidation. FAU - Tobi, Elmar W AU - Tobi EW AUID- ORCID: 0000-0002-1378-3687 AD - Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. AD - Division of Human Nutrition, Wageningen University and Research, 6708 WE Wageningen, Netherlands. FAU - Slieker, Roderick C AU - Slieker RC AD - Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. FAU - Luijk, Rene AU - Luijk R AD - Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. AD - Medical Statistics, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. FAU - Dekkers, Koen F AU - Dekkers KF AD - Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. FAU - Stein, Aryeh D AU - Stein AD AUID- ORCID: 0000-0003-1138-6458 AD - Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA. FAU - Xu, Kate M AU - Xu KM AUID- ORCID: 0000-0002-1863-9676 AD - Medical Statistics, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. AD - Faculty of Psychology and Educational Sciences, Welten Institute, Open University of the Netherlands, 6419 AT Heerlen, Netherlands. CN - Biobank-based Integrative Omics Studies Consortium FAU - Slagboom, P Eline AU - Slagboom PE AUID- ORCID: 0000-0002-2875-4723 AD - Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. FAU - van Zwet, Erik W AU - van Zwet EW AUID- ORCID: 0000-0001-5537-3179 AD - Medical Statistics, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. FAU - Lumey, L H AU - Lumey LH AD - Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. AD - Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY 10032, USA. FAU - Heijmans, Bastiaan T AU - Heijmans BT AUID- ORCID: 0000-0001-5918-0534 AD - Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2300 RC Leiden, Netherlands. LA - eng GR - R01 AG042190/AG/NIA NIH HHS/United States GR - R01 HL067914/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20180131 PL - United States TA - Sci Adv JT - Science advances JID - 101653440 RN - 0 (Triglycerides) SB - IM MH - Adult MH - Body Mass Index MH - DNA Methylation/*genetics MH - Female MH - Genome-Wide Association Study MH - Humans MH - Metabolic Diseases/blood/*genetics MH - Middle Aged MH - Pregnancy MH - Prenatal Exposure Delayed Effects/*genetics MH - Risk Factors MH - Starvation MH - Triglycerides/blood PMC - PMC5792223 EDAT- 2018/02/06 06:00 MHDA- 2019/09/05 06:00 PMCR- 2018/01/31 CRDT- 2018/02/06 06:00 PHST- 2017/07/21 00:00 [received] PHST- 2018/01/03 00:00 [accepted] PHST- 2018/02/06 06:00 [entrez] PHST- 2018/02/06 06:00 [pubmed] PHST- 2019/09/05 06:00 [medline] PHST- 2018/01/31 00:00 [pmc-release] AID - aao4364 [pii] AID - 10.1126/sciadv.aao4364 [doi] PST - epublish SO - Sci Adv. 2018 Jan 31;4(1):eaao4364. doi: 10.1126/sciadv.aao4364. eCollection 2018 Jan.