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  • Title: [Effect of gamma-aminobutyric acid and its derivatives on convulsions induced by L-kynurenine and quinolinic acid].
    Author: Ryzhov IV, Lapin IP.
    Journal: Farmakol Toksikol; 1981; 44(2):140-3. PubMed ID: 6456152.
    Abstract:
    Derivatives of GABA which are ineffective against seizures produced by typical convulsants (strychnine, pentylenetetrazole, etc.), phenibut and sodium hydroxybutyrate in doses of 200 mg/kg and higher possess marked anticonvulsant action against seizures induced by intraventricular injection of L-kynurenine and quinolinic acid in mice. Phepiron, a cyclic form of phenibut, had dissimilar action on the effects of L-kynurenine and a quinolinic acid, enhancing that produced by the former agent and diminishing tonic extension and lethality after the latter one. GABA and piracetam appeared to be ineffective. Efficacy of GABA derivatives against seizures produced by L-kynurenine and quinolinic acid suggests that the system of GABA plays a significant role in the genesis of seizures produced by kynurenines.
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