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  • Title: Anticonvulsant action of GABA agonists and prodrugs on minor and major seizures in epileptic gerbils. Comparison with mouse models of seizure states.
    Author: Löscher W.
    Journal: Arch Int Pharmacodyn Ther; 1985 Aug; 276(2):263-70. PubMed ID: 4051645.
    Abstract:
    The anticonvulsant efficacy of the GABAmimetic drugs cetyl GABA, progabide and THIP (4,5,6,7-tetrahydroisoxazolo [5,4-c] pyridine-3-ol) was studied against minor (myoclonic) and major (generalized tonic-clonic) seizures in gerbils as well as against maximal electroshock and s.c. pentylenetetrazol-induced seizures in mice. Seizures in gerbils were evoked by a blast of compressed air. THIP and progabide were about equally active to protect gerbils against minor and major seizures. ED 50s for THIP were 0.98 and 1.3 mg/kg and for progabide 58 and 50 mg/kg i.p., respectively. Cetyl GABA failed to show a linear dose-response against minor seizures but was quite potent against major ones (ED 50 4.4 mg/kg). All three GABAmimetics were inactive in the mouse models of seizure states except a weak effect of progabide against maximal electroshock seizures. The data show that seizure-prone gerbils with different seizure types differ strikingly in sensitivity to GABAmimetic drugs from traditional mouse models for anticonvulsant drug evaluation.
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