PMID- 32082129 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 1662-5153 (Print) IS - 1662-5153 (Electronic) IS - 1662-5153 (Linking) VI - 14 DP - 2020 TI - Targeting the Stress System During Gestation: Is Early Handling a Protective Strategy for the Offspring? PG - 9 LID - 10.3389/fnbeh.2020.00009 [doi] LID - 9 AB - The perinatal window is a critical developmental time when abnormal gestational stimuli may alter the development of the stress system that, in turn, influences behavioral and physiological responses in the newborns. Individual differences in stress reactivity are also determined by variations in maternal care, resulting from environmental manipulations. Despite glucocorticoids are the primary programming factor for the offspring's stress response, therapeutic corticosteroids are commonly used during late gestation to prevent preterm negative outcomes, exposing the offspring to potentially aberrant stress reactivity later in life. Thus, in this study, we investigated the consequences of one daily s.c. injection of corticosterone (25 mg/kg), from gestational day (GD) 14-16, and its interaction with offspring early handling, consisting in a brief 15-min maternal separation until weaning, on: (i) maternal behavior; and (ii) behavioral reactivity, emotional state and depressive-like behavior in the adolescent offspring. Corticosterone plasma levels, under non-shock- and shock-induced conditions, were also assessed. Our results show that gestational exposure to corticosterone was associated with diminished maternal care, impaired behavioral reactivity, increased emotional state and depressive-like behavior in the offspring, associated with an aberrant corticosterone response. The early handling procedure, which resulted in increased maternal care, was able to counteract the detrimental effects induced by gestational corticosterone exposure both in the behavioral- and neurochemical parameters examined. These findings highlight the potentially detrimental consequences of targeting the stress system during pregnancy as a vulnerability factor for the occurrence of emotional and affective distress in the adolescent offspring. Maternal extra-care proves to be a protective strategy that confers resiliency and restores homeostasis. CI - Copyright (c) 2020 Castelli, Lavanco, Brancato and Plescia. FAU - Castelli, Valentina AU - Castelli V AD - Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy. FAU - Lavanco, Gianluca AU - Lavanco G AD - INSERM U1215, Neuro Centre Magendie, Bordeaux, France. AD - University of Bordeaux, Bordeaux, France. AD - Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, Catania, Italy. FAU - Brancato, Anna AU - Brancato A AD - Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties "Giuseppe D'Alessandro", University of Palermo, Palermo, Italy. FAU - Plescia, Fulvio AU - Plescia F AD - Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties "Giuseppe D'Alessandro", University of Palermo, Palermo, Italy. LA - eng PT - Journal Article DEP - 20200131 PL - Switzerland TA - Front Behav Neurosci JT - Frontiers in behavioral neuroscience JID - 101477952 PMC - PMC7006220 OTO - NOTNLM OT - depressive-like behavior OT - early handling OT - emotionality OT - glucocorticoid OT - prenatal exposure OT - stress reactivity EDAT- 2020/02/23 06:00 MHDA- 2020/02/23 06:01 PMCR- 2020/01/01 CRDT- 2020/02/22 06:00 PHST- 2019/12/03 00:00 [received] PHST- 2020/01/15 00:00 [accepted] PHST- 2020/02/22 06:00 [entrez] PHST- 2020/02/23 06:00 [pubmed] PHST- 2020/02/23 06:01 [medline] PHST- 2020/01/01 00:00 [pmc-release] AID - 10.3389/fnbeh.2020.00009 [doi] PST - epublish SO - Front Behav Neurosci. 2020 Jan 31;14:9. doi: 10.3389/fnbeh.2020.00009. eCollection 2020.