Effects of cocaine treatment in behavioral parameters and in the expression of CREB/pCREB and BDNF in adolescent and adult mice. / Efeitos do tratamento com cocaína sobre parâmetros comportamentais e na expressão de CREB/pCREB e BNDF em camundongos adolescentes e adultos.

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

20/10/2011

RESUMO

The adolescence differs from adulthood in behavioral and neurochemichal aspects. Changes in the activity of the transcriptional factor CREB, neurotrofin BDNF and its receptor TrkB have been found in the mesolimbic-dopaminergic circuitry following the use of cocaine. This study evaluates the effects of cocaine administration in adolescent and adult mice in the locomotor sensitization and in the anxiety-like behavior. The study also accesses the protein levels of CREB/pCREB, BDNF and TrkB, and gene expression of BDNF and TrkB in the prefrontal cortex and hippocampus of these animals. In a general way, adolescents were more susceptible to drug effects, with increased levels of locomotor activity, environmental conditioning, anxiety-like behavior and greater neurochemichal alterations, suggesting an increased risk in the development of drug dependence.

ASSUNTO(S)

adolescentes adolescents behavior camundongos cocaína cocaine comportamento expressão gênica gene expression mice proteínas proteins

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