PMID- 31059136 OWN - NLM STAT- MEDLINE DCOM- 20210106 LR - 20210109 IS - 1469-8986 (Electronic) IS - 0048-5772 (Print) IS - 0048-5772 (Linking) VI - 57 IP - 1 DP - 2020 Jan TI - Experiencing community and domestic violence is associated with epigenetic changes in DNA methylation of BDNF and CLPX in adolescents. PG - e13382 LID - 10.1111/psyp.13382 [doi] LID - e13382 AB - Experiencing violence changes behavior, shapes personalities, and poses a risk factor for mental disorders. This association might be mediated through epigenetic modifications that affect gene expression, such as DNA methylation. The present study investigated the impact of community and domestic violence on DNA methylation measured in saliva collected from 375 individuals including three generations: grandmothers (n = 126), mothers (n = 125), and adolescents (n = 124, 53% female). Using the Infinium HumanMethylation450 BeadChip array, in adolescents, we detected two CpG sites that showed an association of DNA methylation and lifetime exposure to community and domestic violence even after FDR correction: BDNF_cg06260077 (logFC -0.454, p = 3.71E-07), and CLPX_cg01908660 (logFC = -0.372, p = 1.38E-07). Differential DNA methylation of the CpG BDNF_cg06260077 associated with exposure to violence was also observed in the maternal but not the grandmaternal generation. BDNF (brain-derived neurotrophic factor) and CLPX (caseinolytic mitochondrial matrix peptidase chaperone subunit) genes are involved in neural development. Our results thus reveal altered molecular mechanisms of developmental and intergenerational trajectories in survivors of repeated violent experiences. CI - (c) 2019 The Authors Psychophysiology published by Wiley Periodicals, Inc. on behalf of Society for Psychophysiological Research. FAU - Serpeloni, Fernanda AU - Serpeloni F AUID- ORCID: 0000-0001-6222-0162 AD - Clinical Psychology and Neuropsychology, Department of Psychology, University of Konstanz, Konstanz, Germany. AD - National School of Public Health of Rio de Janeiro and National Institute of Women, Children and Adolescents' Health Fernandes Figueira, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil. FAU - Natt, Daniel AU - Natt D AD - Department of Clinical and Experimental Medicine, Center for Social and Affective Neuroscience, Linkoping University, Linkoping, Sweden. FAU - Assis, Simone Goncalves de AU - Assis SG AD - National School of Public Health of Rio de Janeiro and National Institute of Women, Children and Adolescents' Health Fernandes Figueira, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil. FAU - Wieling, Elizabeth AU - Wieling E AD - Family Social Science, University of Minnesota, Minneapolis and St. Paul, Minnesota. FAU - Elbert, Thomas AU - Elbert T AD - Clinical Psychology and Neuropsychology, Department of Psychology, University of Konstanz, Konstanz, Germany. LA - eng GR - 323977/ERC_/European Research Council/International PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190506 PL - United States TA - Psychophysiology JT - Psychophysiology JID - 0142657 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) RN - EC 3.4.21.92 (Endopeptidase Clp) RN - EC 3.6.1.3 (CLPX protein, human) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Brain-Derived Neurotrophic Factor/*genetics MH - Child MH - DNA Methylation/*genetics MH - *Domestic Violence MH - Endopeptidase Clp/*genetics MH - Epigenesis, Genetic/*genetics MH - *Exposure to Violence MH - Female MH - Grandparents MH - Humans MH - Male MH - Middle Aged MH - Mothers MH - Residence Characteristics MH - Survivors MH - Young Adult PMC - PMC7003421 OTO - NOTNLM OT - BDNF OT - DNA methylation OT - adolescents OT - epigenetics OT - intergenerational OT - violence EDAT- 2019/05/07 06:00 MHDA- 2021/01/07 06:00 PMCR- 2020/02/06 CRDT- 2019/05/07 06:00 PHST- 2018/05/30 00:00 [received] PHST- 2019/04/03 00:00 [revised] PHST- 2019/04/04 00:00 [accepted] PHST- 2019/05/07 06:00 [pubmed] PHST- 2021/01/07 06:00 [medline] PHST- 2019/05/07 06:00 [entrez] PHST- 2020/02/06 00:00 [pmc-release] AID - PSYP13382 [pii] AID - 10.1111/psyp.13382 [doi] PST - ppublish SO - Psychophysiology. 2020 Jan;57(1):e13382. doi: 10.1111/psyp.13382. Epub 2019 May 6.