alexa Behavioral and molecular changes in the mouse in response to prenatal exposure to the anti-epileptic drug valproic acid.


Autism-Open Access

Author(s): Roullet FI, Wollaston L, Decatanzaro D, Foster JA

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Abstract Experiments in rodents have indicated that maternal valproic acid (VPA) exposure has permanent adverse effects upon neurological and behavioral development. In humans, prenatal exposure to VPA can induce fetal valproate syndrome, which has been associated with autism. The present study examined mouse pups exposed in utero to VPA, measuring physical development, olfactory discrimination, and social behavior as well as expression of plasticity-related genes, brain derived neurotrophic factor (BDNF) and NMDA receptor subunits NR2A and NR2B. VPA-exposed mice showed delayed physical development, impaired olfactory discrimination, and dysfunctional pre-weaning social behavior. In situ hybridization experiments revealed lower cortical expression of BDNF mRNA in VPA animals. These results support the validity of the VPA mouse model for human autism and suggest that alterations in plasticity-related genes may contribute to the behavioral phenotype. Copyright 2010 IBRO. Published by Elsevier Ltd. All rights reserved. This article was published in Neuroscience and referenced in Autism-Open Access

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