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Heliyon. 2019 May 15;5(5):e01541. doi: 10.1016/j.heliyon.2019.e01541. eCollection 2019 May.

Effects of lithium and valproate on ERK/JNK signaling pathway in an animal model of mania induced by amphetamine.

Heliyon

Samira S Valvassori, Fernanda F Gava, Gustavo C Dal-Pont, Henio Leonardo Simões, Marcela Damiani-Neves, Monica Levy Andersen, Carina Rodrigues Boeck, João Quevedo

Affiliations

  1. Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
  2. Master's Degree in Health and Life Sciences, Postgraduate Program in Nanosciences, Franciscan University, Santa Maria, RS, Brazil.
  3. Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.
  4. Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.
  5. Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.
  6. Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA.

PMID: 31193305 PMCID: PMC6525279 DOI: 10.1016/j.heliyon.2019.e01541

Abstract

Bipolar disorder (BD) is a severe and chronic psychiatric disorder, characterized by recurrent mood episodes of depression and mania. Some studies have indicated that there are ERK and JNK pathways alterations in the brain from bipolar patients. The animal model of mania induced by dextroamphetamine (d-AMPH) has been considered an excellent model to study intracellular alterations related to BD. The present study aimed to evaluate the effects of lithium (Li) and valproate (VPA) on the behavioral and ERK1/2/JNK1/2 signaling pathway in an animal model of mania induced by d-AMPH. Wistar rats were first given d-AMPH or saline (Sal) for 14 days, and then, between the 8th and 14th days, the rats were treated with Li, VPA, or Sal. The open-field test was used to evaluate the locomotion and exploration behaviors of rats. The levels of phosphorylated ERK1/2 and JNK1/2 were assessed in the hippocampus and frontal cortex of the rats. Li and VPA reversed the increased of locomotion and exploration induced by d-AMPH. The treatment with VPA or AMPH

Keywords: Molecular biology; Neuroscience

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