Pharmacological and neuroethological studies of three antiepileptic drugs in the Genetic Audiogenic Seizure Hamster (GASH:Sal)

Autor(es)

Barrera-Bailon, B. ^[1] ; Oliveira, J. A. C. ^[2] ; Lopez, D. E. ^{[1, 3]} ; Munoz, L. J. ^[4] ; Garcia-Cairasco, N. ^[2] ; Sancho, C. ^{[1, 5]}

Afiliação do(s) autor(es)

^[1] Univ Salamanca, Inst Neurosci Castilla & Leon IBSAL, E-37008 Salamanca - Spain

^[2] Univ Sao Paulo, Dept Physiol, Ribeirao Preto Sch Med, BR-14049 Ribeirao Preto - Brazil

^[3] Univ Salamanca, Sch Med, Dept Cell Biol & Pathol, E-37008 Salamanca - Spain

^[4] Univ Salamanca, Anim Res Serv, E-37008 Salamanca - Spain

^[5] Univ Salamanca, Sch Med, Dept Physiol & Pharmacol, E-37008 Salamanca - Spain

• Tipo de documento: Artigo Científico
• Fonte: Epilepsy & Behavior; v. 28, n. 3, p. 413-425, SEP 2013.
• Citações Web of Science: 7

Resumo

Epilepsy modeling is essential for understanding the basic mechanisms of the epileptic process. The Genetic Audiogenic Seizure Hamster (GASH:Sal) exhibits generalized tonic-clonic seizures of genetic origin in response to sound stimulation and is currently being validated as a reliable model of epilepsy. Here, we performed a pharmacological and neuroethological study using well-known and widely used antiepileptic drugs (AEDs), including phenobarbital (PB), valproic acid (VPA), and levetiracetam (LEV). The intraperitoneal administration of PB (5-20 mg/kg) and VPA (100-300 mg/kg) produced a dose-dependent decrease in GASH: Sal audiogenic seizure severity scores. The administration of LEV (30-100 mg/kg) did not produce a clear effect Phenobarbital showed a short plasmatic life and had a high antiepileptic effect starting at 10 mg/kg that was accompanied by ataxia. Valproic add acted only at high concentrations and was the AED with the most ataxic effects. Levetiracetam at all doses also produced sedation and ataxia side effects. We conclude that the GASH:Sal is a reliable genetic model of epilepsy suitable to evaluate AEDs. (C) 2013 Elsevier Inc. All rights reserved. (AU)

• Processo FAPESP: 07/50261-4 - Neurociências, epilepsia e arte: caracterização interdisciplinar da cepa WAR e modelos de epilepsia correlacionados: as oficinas Da Vinci, divulgação científica e quebras de estigmas em epilepsia
• Beneficiário: Norberto Garcia Cairasco
• Modalidade de apoio: Auxílio à Pesquisa - Temático