PMID- 29481896 OWN - NLM STAT- MEDLINE DCOM- 20190214 LR - 20220408 IS - 1878-4216 (Electronic) IS - 0278-5846 (Linking) VI - 84 IP - Pt A DP - 2018 Jun 8 TI - Zinc as a therapy in a rat model of autism prenatally induced by valproic acid. PG - 173-180 LID - S0278-5846(17)30859-X [pii] LID - 10.1016/j.pnpbp.2018.02.008 [doi] AB - Autism is characterized by numerous behavioral impairments, such as in communication, socialization and cognition. Recent studies have suggested that valproic acid (VPA), an anti-epileptic drug with teratogenic activity, is related to autism. In rodents, VPA exposure during pregnancy induces autistic-like effects. Exposure to VPA may alter zinc metabolism resulting in a transient deficiency of zinc. Therefore, we selected zinc as a prenatal treatment to prevent VPA-induced impairments in a rat model of autism. Wistar female rats received either saline solution or VPA (400 mg/kg, i.p) on gestational day (GD) 12.5. To test the zinc supplementation effect, after 1 h of treatment with saline or VPA, a dose of zinc (2 mg/kg, s.c.) was injected. The offspring were tested for abnormal communication behaviors with an ultrasound vocalization task on postnatal day (PND) 11, repetitive behaviors and cognitive ability with a T-maze task on PND 29, and social interaction with a play behavior task on PND 30. Tyrosine hydroxylase protein (TH) expression was evaluated in the striatum. Prenatal VPA decreased ultrasonic vocalization, induced repetitive/restricted behaviors and cognitive inflexibility, impaired socialization, and reduced striatal TH levels compared with control group. Zinc treatment reduced VPA-induced autistic-like behaviors. However, we found no evidence of an effect of zinc on the VPA-induced reduction in TH expression. The persistence of low TH expression in the VPA-Zn group suggests that Zn-induced behavioral improvement in autistic rats may not depend on TH activity. CI - Copyright (c) 2018 Elsevier Inc. All rights reserved. FAU - Cezar, Luana Carvalho AU - Cezar LC AD - University of Sao Paulo, School of Veterinary Medicine, Department of Pathology, Sao Paulo, Brazil. Electronic address: cezarlc@usp.br. FAU - Kirsten, Thiago Berti AU - Kirsten TB AD - Paulista University, Environmental and Experimental Pathology, Sao Paulo, Brazil. FAU - da Fonseca, Caio Cesar Navarrete AU - da Fonseca CCN AD - Federal University of Sao Paulo, Department of Morphology and Genetics, Sao Paulo, Brazil. FAU - de Lima, Ana Paula Nascimento AU - de Lima APN AD - University of Sao Paulo, School of Veterinary Medicine, Department of Pathology, Sao Paulo, Brazil. FAU - Bernardi, Maria Martha AU - Bernardi MM AD - Paulista University, Environmental and Experimental Pathology, Sao Paulo, Brazil. FAU - Felicio, Luciano Freitas AU - Felicio LF AD - University of Sao Paulo, School of Veterinary Medicine, Department of Pathology, Sao Paulo, Brazil. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180223 PL - England TA - Prog Neuropsychopharmacol Biol Psychiatry JT - Progress in neuro-psychopharmacology & biological psychiatry JID - 8211617 RN - 0 (Neuroprotective Agents) RN - 614OI1Z5WI (Valproic Acid) RN - EC 1.14.16.2 (Tyrosine 3-Monooxygenase) RN - J41CSQ7QDS (Zinc) SB - IM MH - Animals MH - Autistic Disorder/*prevention & control MH - Corpus Striatum/drug effects/growth & development/metabolism MH - Disease Models, Animal MH - Female MH - Male MH - Neuroprotective Agents/*pharmacology MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Rats, Wistar MH - Social Behavior MH - Tyrosine 3-Monooxygenase/metabolism MH - Ultrasonics MH - Valproic Acid/*toxicity MH - Vocalization, Animal/drug effects MH - Zinc/*pharmacology OTO - NOTNLM OT - Animal model OT - Autistic-like behavior OT - Dopamine OT - Valproic acid OT - Zinc deficiency EDAT- 2018/02/27 06:00 MHDA- 2019/02/15 06:00 CRDT- 2018/02/27 06:00 PHST- 2017/10/11 00:00 [received] PHST- 2018/02/05 00:00 [revised] PHST- 2018/02/17 00:00 [accepted] PHST- 2018/02/27 06:00 [pubmed] PHST- 2019/02/15 06:00 [medline] PHST- 2018/02/27 06:00 [entrez] AID - S0278-5846(17)30859-X [pii] AID - 10.1016/j.pnpbp.2018.02.008 [doi] PST - ppublish SO - Prog Neuropsychopharmacol Biol Psychiatry. 2018 Jun 8;84(Pt A):173-180. doi: 10.1016/j.pnpbp.2018.02.008. Epub 2018 Feb 23.