PMID- 26318631 OWN - NLM STAT- MEDLINE DCOM- 20160818 LR - 20181113 IS - 1873-3360 (Electronic) IS - 0306-4530 (Print) IS - 0306-4530 (Linking) VI - 62 DP - 2015 Dec TI - Prenatal stress programs neuroendocrine stress responses and affective behaviors in second generation rats in a sex-dependent manner. PG - 204-16 LID - S0306-4530(15)00883-5 [pii] LID - 10.1016/j.psyneuen.2015.08.010 [doi] AB - An adverse environment in early life is often associated with dysregulation of the hypothalamo-pituitary-adrenal (HPA) axis and higher rates of mood disorders in adulthood. In rats, exposure to social stress during pregnancy results in hyperactive HPA axis responses to stress in the adult offspring and heightened anxiety behavior in the males, but not the females. Here we tested whether, without further intervention, the effects of prenatal stress (PNS) in the first filial generation (F1) are transmitted to the F2 generation via the maternal line. F1 control and PNS female rats were mated with control males and housed under non-stress conditions throughout pregnancy. HPA axis responses to acute stress, anxiety- and depressive-like behavior were assessed in the adult F2 offspring. ACTH and corticosterone responses to an acute stressor were markedly enhanced in F2 PNS females compared with controls. This was associated with greater corticotropin releasing hormone (Crh) mRNA expression in the paraventricular nucleus and reduced hippocampal glucocorticoid (Gr) and mineralocorticoid receptor (Mr) mRNA expression. Conversely, in the F2 PNS males, HPA axis responses to acute stress were attenuated and hippocampal Gr mRNA expression was greater compared with controls. F2 PNS males exhibited heightened anxiety-like behavior (light-dark box and elevated plus maze) compared with F2 control males. Anxiety-like behavior did not differ between F2 control and PNS females during metestrus/diestrus, however at proestrus/estrus, F2 control females displayed a reduction in anxiety-like behavior, but this effect was not observed in the F2 PNS females. Heightened anxiety in the F2 PNS males was associated with greater Crh mRNA expression in the central nucleus of the amygdala compared with controls. Moreover, Crh receptor-1 (Crhr1) mRNA expression was significantly increased, whereas Crhr2 mRNA was significantly decreased in discrete regions of the amygdala in F2 PNS males compared with controls, with no differences in the F2 females. No differences in depressive-like behavior (sucrose preference or forced swim test) were observed in either sex. In conclusion, the effects of maternal stress during pregnancy on HPA axis regulation and anxiety-like behavior can be transmitted to future generations in a sex-dependent manner. These data have implications for human neuropsychiatric disorders with developmental origins. CI - Copyright (c) 2015 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Grundwald, Natalia J AU - Grundwald NJ AD - The Roslin Institute and R (D) SVS, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK. FAU - Brunton, Paula J AU - Brunton PJ AD - The Roslin Institute and R (D) SVS, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK. Electronic address: p.j.brunton@ed.ac.uk. LA - eng GR - BB/F01693X/1/Biotechnology and Biological Sciences Research Council/United Kingdom GR - BB/J004332/1/Biotechnology and Biological Sciences Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150817 PL - England TA - Psychoneuroendocrinology JT - Psychoneuroendocrinology JID - 7612148 RN - 0 (Receptors, Glucocorticoid) RN - 0 (Receptors, Mineralocorticoid) RN - 9002-60-2 (Adrenocorticotropic Hormone) RN - 9015-71-8 (Corticotropin-Releasing Hormone) RN - W980KJ009P (Corticosterone) SB - IM MH - Adrenocorticotropic Hormone/blood MH - Animals MH - Anxiety/metabolism/physiopathology MH - Behavior, Animal/*physiology MH - Corticosterone/blood MH - Corticotropin-Releasing Hormone/genetics/metabolism MH - Depression/metabolism/physiopathology MH - Female MH - Hippocampus/metabolism MH - Hypothalamo-Hypophyseal System/metabolism/*physiopathology MH - Male MH - Paraventricular Hypothalamic Nucleus/metabolism MH - Pituitary-Adrenal System/metabolism/*physiopathology MH - Pregnancy MH - Prenatal Exposure Delayed Effects/metabolism/*physiopathology MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, Glucocorticoid/genetics/metabolism MH - Receptors, Mineralocorticoid/genetics/metabolism MH - Sex Factors MH - Stress, Psychological/metabolism/*physiopathology PMC - PMC4642655 OTO - NOTNLM OT - Anxiety OT - Glucocorticoids OT - HPA axis OT - Prenatal stress OT - Sex differences OT - Trans-generational EDAT- 2015/09/01 06:00 MHDA- 2016/08/19 06:00 PMCR- 2015/12/01 CRDT- 2015/08/31 06:00 PHST- 2015/06/18 00:00 [received] PHST- 2015/08/05 00:00 [revised] PHST- 2015/08/13 00:00 [accepted] PHST- 2015/08/31 06:00 [entrez] PHST- 2015/09/01 06:00 [pubmed] PHST- 2016/08/19 06:00 [medline] PHST- 2015/12/01 00:00 [pmc-release] AID - S0306-4530(15)00883-5 [pii] AID - 10.1016/j.psyneuen.2015.08.010 [doi] PST - ppublish SO - Psychoneuroendocrinology. 2015 Dec;62:204-16. doi: 10.1016/j.psyneuen.2015.08.010. Epub 2015 Aug 17.