Abstract
Birthweight is associated with health outcomes across the life course, DNA methylation may be an underlying mechanism. In this meta-analysis of epigenome-wide association studies of 8,825 neonates from 24 birth cohorts in the Pregnancy And Childhood Epigenetics Consortium, we find that DNA methylation in neonatal blood is associated with birthweight at 914 sites, with a difference in birthweight ranging from -183 to 178 grams per 10% increase in methylation (PBonferroni < 1.06 x 10-7). In additional analyses in 7,278 participants, <1.3% of birthweight-associated differential methylation is also observed in childhood and adolescence, but not adulthood. Birthweight-related CpGs overlap with some Bonferroni-significant CpGs that were previously reported to be related to maternal smoking (55/914, p = 6.12 x 10-74) and BMI in pregnancy (3/914, p = 1.13x10-3), but not with those related to folate levels in pregnancy. Whether the associations that we observe are causal or explained by confounding or fetal growth influencing DNA methylation (i.e. reverse causality) requires further research.
Original language | English |
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Article number | 1893 |
Number of pages | 11 |
Journal | Nature Communications |
Volume | 10 |
Issue number | 1 |
DOIs | |
Publication status | Published - 23-Apr-2019 |
Keywords
- MENDELIAN RANDOMIZATION
- MATERNAL SMOKING
- FETAL ORIGINS
- CORD BLOOD
- EPIGENETIC MEDIATION
- GENETIC-EVIDENCE
- PREGNANCY
- PACKAGE
- DISEASE
- BIOCONDUCTOR
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Dataset: Meta-analysis results of epigenome-wide association studies in neonates reveals widespread differential DNA methylation associated with birthweight
Küpers, L. (Creator), University of Groningen, 12-Dec-2018
Dataset
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Additional file 7 of Developmental programming in human umbilical cord vein endothelial cells following fetal growth restriction
Terstappen, F. (Creator), Calis, J. J. A. (Creator), Paauw, N. D. (Creator), Joles, J. A. (Creator), van Rijn, B. B. (Contributor), Mokry, M. (Creator), Plösch, T. (Creator) & Lely, A. T. (Contributor), figshare, 30-Nov-2020
DOI: 10.6084/m9.figshare.13310377, https://springernature.figshare.com/articles/dataset/Additional_file_7_of_Developmental_programming_in_human_umbilical_cord_vein_endothelial_cells_following_fetal_growth_restriction/13310377
Dataset
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GECKO Drenthe cohort
Corpeleijn, E. (Creator), Snieder, H. (Creator), Bocca, G. (Creator), Gracchi, V. (Creator) & Hoek, A. (Creator), University of Groningen, 2006
DOI: 10.34760/5f5b80eb0830f, http://www.geckodrenthe.umcg.nl and 2 more links, http://www.birthcohorts.net/birthcohorts/birthcohort/?id=138, https://umcgresearch.org/-/gecko (show fewer)
Dataset