PMID: 6538006Feb 1, 1984Paper

Biochemical and clinical effects of gamma-vinyl GABA in patients with epilepsy

Neurology
P J SchechterA Sjoerdsma

Abstract

In a pilot single-blind study, gamma-vinyl GABA, an enzyme-activated irreversible inhibitor of GABA-transaminase (GABA-T), was administered orally to 10 epileptic patients who were refractory to conventional anticonvulsant therapy. Daily doses of 1 g and 2 g for 2 weeks each as add-on therapy were followed by 2 weeks of placebo treatment. CSF obtained from suboccipital and lumbar punctures demonstrated dose-related increases in concentrations of free and total GABA and homocarnosine with treatment, but no changes in 5-hydroxyindoleacetic acid or homovanillic acid levels, indicating effective and selective CNS GABA-T inhibition. These biochemical changes were associated with decreased seizure frequency in seven patients, decreased seizure severity in one, no change in one, and possible worsening in one. gamma-Vinyl GABA may be useful in the therapy of epilepsy.

Citations

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