PMID- 28330827 OWN - NLM STAT- MEDLINE DCOM- 20180515 LR - 20240327 IS - 1873-474X (Electronic) IS - 0736-5748 (Print) IS - 0736-5748 (Linking) VI - 62 DP - 2017 Nov TI - Intrauterine exposure to maternal stress alters Bdnf IV DNA methylation and telomere length in the brain of adult rat offspring. PG - 56-62 LID - S0736-5748(16)30374-4 [pii] LID - 10.1016/j.ijdevneu.2017.03.007 [doi] AB - DNA methylation (addition of methyl groups to cytosines) and changes in telomere length (TTAGGG repeats on the ends of chromosomes) are two molecular modifications that result from stress and could contribute to the long-term effects of intrauterine exposure to maternal stress on offspring behavior. Here, we measured methylation of DNA associated with the Brain-derived neurotrophic factor (Bdnf) gene, a gene important in development and plasticity, and telomere length in the brains of adult rat male and female offspring whose mothers were exposed to unpredictable and variable stressors throughout gestation. Males exposed to prenatal stress had greater methylation (Bdnf IV) in the medial prefrontal cortex (mPFC) compared to non-stressed male controls and stressed females. Further, prenatally-stressed animals had shorter telomeres than controls in the mPFC. Together findings indicate a long-term impact of prenatal stress on brain DNA methylation and telomere biology with relevance for behavioral and health outcomes, and contribute to a growing literature linking stress to intergenerational molecular changes. CI - Copyright (c) 2017 ISDN. Published by Elsevier Ltd. All rights reserved. FAU - Blaze, Jennifer AU - Blaze J AD - Department of Psychological and Brain Sciences, University of Delaware, Newark, DE,United States. FAU - Asok, Arun AU - Asok A AD - Department of Psychological and Brain Sciences, University of Delaware, Newark, DE,United States. FAU - Borrelli, Kristyn AU - Borrelli K AD - Department of Psychological and Brain Sciences, University of Delaware, Newark, DE,United States. FAU - Tulbert, Christina AU - Tulbert C AD - Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, NC, United States. FAU - Bollinger, Justin AU - Bollinger J AD - Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, NC, United States. FAU - Ronca, April E AU - Ronca AE AD - Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, NC, United States; Program in Neuroscience, Wake Forest School of Medicine, Winston-Salem, NC, United States; Space Biosciences Research Division, NASA Ames Research Center, Moffett Field, CA. FAU - Roth, Tania L AU - Roth TL AD - Department of Psychological and Brain Sciences, University of Delaware, Newark, DE,United States. Electronic address: troth@psych.udel.edu. LA - eng GR - P20 GM103446/GM/NIGMS NIH HHS/United States GR - P20 GM103653/GM/NIGMS NIH HHS/United States GR - R01 HD050201/HD/NICHD NIH HHS/United States PT - Journal Article DEP - 20170319 PL - United States TA - Int J Dev Neurosci JT - International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience JID - 8401784 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Analysis of Variance MH - Animals MH - Brain/*metabolism MH - Brain-Derived Neurotrophic Factor/genetics/*metabolism MH - DNA Methylation/*genetics MH - Epigenesis, Genetic/*physiology MH - Female MH - Male MH - Pregnancy MH - Pregnancy Outcome MH - Prenatal Exposure Delayed Effects/*physiopathology MH - Rats MH - Rats, Sprague-Dawley MH - Sex Factors MH - *Stress, Psychological/genetics/metabolism/pathology MH - Telomere Homeostasis/*physiology PMC - PMC5600826 MID - NIHMS873339 OTO - NOTNLM OT - DNA methylation OT - Maternal stress OT - Prenatal stress OT - Telomere length EDAT- 2017/03/24 06:00 MHDA- 2018/05/16 06:00 PMCR- 2018/11/01 CRDT- 2017/03/24 06:00 PHST- 2016/12/31 00:00 [received] PHST- 2017/03/14 00:00 [revised] PHST- 2017/03/17 00:00 [accepted] PHST- 2017/03/24 06:00 [pubmed] PHST- 2018/05/16 06:00 [medline] PHST- 2017/03/24 06:00 [entrez] PHST- 2018/11/01 00:00 [pmc-release] AID - S0736-5748(16)30374-4 [pii] AID - 10.1016/j.ijdevneu.2017.03.007 [doi] PST - ppublish SO - Int J Dev Neurosci. 2017 Nov;62:56-62. doi: 10.1016/j.ijdevneu.2017.03.007. Epub 2017 Mar 19.