PMID- 34256105 OWN - NLM STAT- MEDLINE DCOM- 20220112 LR - 20220112 IS - 1872-7972 (Electronic) IS - 0304-3940 (Linking) VI - 761 DP - 2021 Sep 14 TI - Oxandrolone treatment in juvenile rats induced anxiety-like behavior in young adult animals. PG - 136104 LID - S0304-3940(21)00482-1 [pii] LID - 10.1016/j.neulet.2021.136104 [doi] AB - AIMS: Oxandrolone (OXA) is a synthetic steroid used for the treatment of clinical conditions associated with catabolic states in humans, including children. However, its behavioral effects are not well known. Our goal was to evaluate the anxiety-like behavior induced in young adult rats after the treatment of juvenile animals with OXA. METHODS: Four-week-old male rats were separated into three groups: Control (CON), therapeutic-like OXA dose (TD), and excessive OXA dose (ED), in which 2.5 and 37.5 mg/kg/day of OXA were administered via gavage for four weeks for TD and ED, respectively. Behavior was evaluated through the elevated plus maze (EPM) and open field (OF) tests. Protein expression of catalase (CAT), superoxide dismutase (SOD), Tumor necrosis factor-alpha (TNF-alpha), and dopamine receptor 2 (DrD2) were analyzed in tissue samples of the hippocampus, amygdala, and prefrontal cortex by Western Blot. RESULTS: OXA induced anxiety-like behaviors in both TD and ED animals; it decreased the time spent in the open arms of the EPM in both groups and reduced the time spent in the central zone of the OF in the TD group. In the hippocampus, CAT expression was higher in TD compared with both control and ED animals. No differences were found in the amygdala and prefrontal cortex. TNF-alpha, SOD, and DrD2 levels were not altered in any of the assessed areas. CONCLUSIONS: Treatment of juvenile rats with OXA led to anxiety-like behavior in young adult animals regardless of the dose used, with minor changes in the antioxidant machinery located in the hippocampus. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Bernardina, Nara Rubia D AU - Bernardina NRD AD - Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, ES, Brazil. FAU - de Lima, Randriely Merscher Sobreira AU - de Lima RMS AD - Instituto de Ciencias Basicas da Saude, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil. FAU - Ronchi, Silas N AU - Ronchi SN AD - Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, ES, Brazil. FAU - Wan Der Mass, Edgar M AU - Wan Der Mass EM AD - Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, ES, Brazil. FAU - Souza, Glauciene J AU - Souza GJ AD - Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, ES, Brazil. FAU - Rodrigues, Livia C AU - Rodrigues LC AD - Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, ES, Brazil. FAU - Bissoli, Nazare S AU - Bissoli NS AD - Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, ES, Brazil. FAU - Brasil, Girlandia A AU - Brasil GA AD - Pharmaceutical Sciences Graduate Program, University Vila Velha, Vila Velha, ES, Brazil. Electronic address: dragirlandia@gmail.com. LA - eng PT - Journal Article DEP - 20210710 PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 RN - 0 (Anabolic Agents) RN - 0 (Receptors, Dopamine D2) RN - 0 (Tumor Necrosis Factor-alpha) RN - 7H6TM3CT4L (Oxandrolone) RN - EC 1.11.1.6 (Catalase) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM MH - Anabolic Agents/administration & dosage/*toxicity MH - Animals MH - Anxiety/*etiology MH - Catalase/metabolism MH - Hippocampus/*drug effects/growth & development/metabolism MH - Male MH - Oxandrolone/administration & dosage/*toxicity MH - Rats MH - Rats, Wistar MH - Receptors, Dopamine D2/metabolism MH - Superoxide Dismutase/metabolism MH - Tumor Necrosis Factor-alpha/metabolism OTO - NOTNLM OT - Anxiety OT - Behavior OT - Juvenile rats OT - Oxandrolone EDAT- 2021/07/14 06:00 MHDA- 2022/01/13 06:00 CRDT- 2021/07/13 20:11 PHST- 2020/09/16 00:00 [received] PHST- 2021/06/29 00:00 [revised] PHST- 2021/07/05 00:00 [accepted] PHST- 2021/07/14 06:00 [pubmed] PHST- 2022/01/13 06:00 [medline] PHST- 2021/07/13 20:11 [entrez] AID - S0304-3940(21)00482-1 [pii] AID - 10.1016/j.neulet.2021.136104 [doi] PST - ppublish SO - Neurosci Lett. 2021 Sep 14;761:136104. doi: 10.1016/j.neulet.2021.136104. Epub 2021 Jul 10.