Effects of SKF525A, Phenobarbital, Fasting, and Carnitine on the Anticonvulsant Activity and Neurotoxicity of Valproate in Mice
- 1 October 1984
- Vol. 25 (5) , 599-604
- https://doi.org/10.1111/j.1528-1157.1984.tb03468.x
Abstract
Summary:The anticonvulsant potency of valproate (VPA), as measured by the maximal electroshock seizure model in mice, was improved by pretreatment with the microsomal inhibitor SKF525A and by fasting, but was reduced by chronic phenobarbital pretreatment. Carnitine did not significantly alter the anticonvulsant properties of VPA. These findings suggest that the efficacy of VPA can be improved by factors that alter its metabolic pattern.RESUMEN: La potencia anticonvulsiva de valproato (VPA), medida medrante el modelo de ataques por máximo electroshock en ratones, mejoró con un tratamiento previo con el inhibidor microsomal SKF525A y con el ayuno. Por el contrario, se redujo con un tratamiento previo con fenobarbital. La carnitina no alteró significativamente las propiedades anticonvulsivas del VPA. Estos datos sugieren que la eficacia del VPA puede ser mejorada con factores que alteran su patrón metabólico.ZUSAMMENFASSUNG: Die antikonvulsive Stärke von Valproat (VPA) wird im maximalen Elektroschockmodell bei Mäusen gemessen. Sie wurde durch Vorbehandlung mit dem mikrosomalen Inhibitor SKF 525 A und durch Fasten verbessert, durch chronische Vorbehandlung mit Phenobarbital jedoch vermindert. Carnitin änderte die antikonvulsiven Fähigkeiten von VPA nicht signifikant. Diese Befunde weisen darauf hin, daß die Wirksamkeit des VPA durch Faktoren gesteigert werden kann, die ihren Metabolismus verändern.Keywords
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