DNA methylation and body mass index from birth to adolescence : meta-analyses of epigenome-wide association studies
Vehmeijer, Florianne O. L.; Kuepers, Leanne K.; Sharp, Gemma C.; Salas, Lucas A.; Lent, Samantha; Jima, Dereje D.; Tindula, Gwen; Reese, Sarah; Qi, Cancan; Gruzieva, Olena; Page, Christian; Rezwan, Faisal, I; Melton, Philip E.; Nohr, Ellen; Escaramis, Georgia; Rzehak, Peter; Heiskala, Anni; Gong, Tong; Tuominen, Samuli T.; Gao, Lu; Ross, Jason P.; Starling, Anne P.; Holloway, John W.; Yousefi, Paul; Aasvang, Gunn Marit; Beilin, Lawrence J.; Bergstrom, Anna; Binder, Elisabeth; Chatzi, Leda; Corpeleijn, Eva; Czamara, Darina; Eskenazi, Brenda; Ewart, Susan; Ferre, Natalia; Grote, Veit; Gruszfeld, Dariusz; Haberg, Siri E.; Hoyo, Cathrine; Huen, Karen; Karlsson, Robert; Kull, Inger; Langhendries, Jean-Paul; Lepeule, Johanna; Magnus, Maria C.; Maguire, Rachel L.; Molloy, Peter L.; Monnereau, Claire; Mori, Trevor A.; Oken, Emily; Raikkonen, Katri; Rifas-Shiman, Sheryl; Ruiz-Arenas, Carlos; Sebert, Sylvain; Ullemar, Vilhelmina; Verduci, Elvira; Vonk, Judith M.; Xu, Cheng-jian; Yang, Ivana, V; Zhang, Hongmei; Zhang, Weiming; Karmaus, Wilfried; Dabelea, Dana; Muhlhausler, Beverly S.; Breton, Carrie, V; Lahti, Jari; Almqvist, Catarina; Jarvelin, Marjo-Riitta; Koletzko, Berthold; Vrijheid, Martine; Sorensen, Thorkild I. A.; Huang, Rae-Chi; Arshad, Syed Hasan; Nystad, Wenche; Melen, Erik; Koppelman, Gerard H.; London, Stephanie J.; Holland, Nina; Bustamante, Mariona; Murphy, Susan K.; Hivert, Marie-France; Baccarelli, Andrea; Relton, Caroline L.; Snieder, Harold; Jaddoe, Vincent W. V.; Felix, Janine F. (2020-11-25)
Vehmeijer, F.O.L., Küpers, L.K., Sharp, G.C. et al. DNA methylation and body mass index from birth to adolescence: meta-analyses of epigenome-wide association studies. Genome Med 12, 105 (2020). https://doi.org/10.1186/s13073-020-00810-w
© The Author(s). 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
https://creativecommons.org/licenses/by/4.0/
https://urn.fi/URN:NBN:fi-fe202103106951
Tiivistelmä
Abstract
Background: DNA methylation has been shown to be associated with adiposity in adulthood. However, whether similar DNA methylation patterns are associated with childhood and adolescent body mass index (BMI) is largely unknown. More insight into this relationship at younger ages may have implications for future prevention of obesity and its related traits.
Methods: We examined whether DNA methylation in cord blood and whole blood in childhood and adolescence was associated with BMI in the age range from 2 to 18 years using both cross-sectional and longitudinal models. We performed meta-analyses of epigenome-wide association studies including up to 4133 children from 23 studies. We examined the overlap of findings reported in previous studies in children and adults with those in our analyses and calculated enrichment.
Results: 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).
Conclusions: There were only minimal associations of DNA methylation with childhood and adolescent BMI. With the advancing age of the participants across childhood and adolescence, we observed increasing overlap with altered DNA methylation loci reported in association with adult BMI. These findings may be compatible with the hypothesis that DNA methylation differences are mostly a consequence rather than a cause of obesity.
Kokoelmat
- Avoin saatavuus [34534]
