DNA methylation in peripheral tissues and left-handedness

Veronika V. Odintsova*, Matthew Suderman, Fiona A. Hagenbeek, Doretta Caramaschi, Jouke Jan Hottenga, René Pool, Conor V. Dolan, Lannie Ligthart, Catharina E.M. van Beijsterveldt, Gonneke Willemsen, Eco J.C. de Geus, Jeffrey J. Beck, Erik A. Ehli, Gabriel Cuellar-Partida, David M. Evans, Sarah E. Medland, Caroline L. Relton, Dorret I. Boomsma, Jenny van Dongen*, Bastiaan T. HeijmansPeter A.C. ’t Hoen, Joyce van Meurs, Aaron Isaacs, Rick Jansen, Lude Franke, Dorret I. Boomsma, René Pool, Jenny van Dongen*, Jouke J. Hottenga, Marleen M.J. van Greevenbroek, Coen D.A. Stehouwer, Carla J.H. van der Kallen, Casper G. Schalkwijk, Cisca Wijmenga, Lude Franke, Sasha Zhernakova, Ettje F. Tigchelaar, P. Eline Slagboom, Marian Beekman, Joris Deelen, Diana van Heemst, Jan H. Veldink, Leonard H. Van den Berg, Cornelia M. van Duijn, Bert A. Hofman, Aaron Isaacs, André G. Uitterlinden, Joyce van Meurs, P. Mila Jhamai, Michael Verbiest, BIOS Consortium, Cohort collection, Data Analysis Group, Data Generation, Data management and computational infrastructure, Management Team

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Handedness has low heritability and epigenetic mechanisms have been proposed as an etiological mechanism. To examine this hypothesis, we performed an epigenome-wide association study of left-handedness. In a meta-analysis of 3914 adults of whole-blood DNA methylation, we observed that CpG sites located in proximity of handedness-associated genetic variants were more strongly associated with left-handedness than other CpG sites (P = 0.04), but did not identify any differentially methylated positions. In longitudinal analyses of DNA methylation in peripheral blood and buccal cells from children (N = 1737), we observed moderately stable associations across age (correlation range [0.355–0.578]), but inconsistent across tissues (correlation range [- 0.384 to 0.318]). We conclude that DNA methylation in peripheral tissues captures little of the variance in handedness. Future investigations should consider other more targeted sources of tissue, such as the brain.
Original languageEnglish
Article number5606
Number of pages16
JournalScientific Reports
Volume12
Issue number1
DOIs
Publication statusPublished - 1 Dec 2022

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