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DNA methylation and body mass index from birth to adolescence: meta-analyses of epigenome-wide association studies.
Vehmeijer, Florianne O L Küpers, Leanne K Sharp, Gemma C Salas, Lucas A Lent, Samantha Jima, Dereje D Tindula, Gwen Reese, Sarah Qi, Cancan Gruzieva, Olena
Vehmeijer, Florianne O L
Küpers, Leanne K
Sharp, Gemma C
Salas, Lucas A
Lent, Samantha
Jima, Dereje D
Tindula, Gwen
Reese, Sarah
Qi, Cancan
Gruzieva, Olena
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2020-11-25
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Abstract
DNA methylation at three CpGs (cg05937453, cg25212453, and cg10040131), each in a different age range, was associated with BMI at Bonferroni significance, P < 1.06 × 10-7, with a 0.96 standard deviation score (SDS) (standard error (SE) 0.17), 0.32 SDS (SE 0.06), and 0.32 BMI SDS (SE 0.06) higher BMI per 10% increase in methylation, respectively. DNA methylation at nine additional CpGs in the cross-sectional childhood model was associated with BMI at false discovery rate significance. The strength of the associations of DNA methylation at the 187 CpGs previously identified to be associated with adult BMI, increased with advancing age across childhood and adolescence in our analyses. In addition, correlation coefficients between effect estimates for those CpGs in adults and in children and adolescents also increased. Among the top findings for each age range, we observed increasing enrichment for the CpGs that were previously identified in adults (birth Penrichment = 1; childhood Penrichment = 2.00 × 10-4; adolescence Penrichment = 2.10 × 10-7).
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Genome Med. 2020 Nov 25;12(1):105. doi: 10.1186/s13073-020-00810-w.
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en
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1756-994X
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Attribution 4.0 International