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METABOLISM OF γ-AMINOBUTYRIC ACID AND ITS NEUROCHEMICAL SIGNIFICANCE IN EPILEPTIC SEIZURE Dennosuke JINNAI 1 , Akitane MORI 1 1Dept. of Neurosurgery, Osaka Univ. Medical School pp.590-600
Published Date 1964/7/1
DOI https://doi.org/10.11477/mf.1406201671
  • Abstract
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γ-aminobutyric acid (GABA) or γ-amino-β-hydro-xy-butyric acid (GABOB) have been studied as an inhibitory transmitter in the central nervous system for last several years since the discovery of the factor I by Florey (1954).

In this paper studies and discussions on the meta-bolic pathways of GABA were reported concerning with biochemical mechanism of excitation and inhibi-tion in the brain.

1) γ-guanidinobutyric acid displayed considerable excitatory effects in the brain opposite to our initial expectatipn as an inhibitory substance.

2) γ-aminobutyrylcholine showed a marked in-hibitory effect against the convulsion induced by metrazol intravenous injection.

3) Homocarnosine was a marked imhibitory sub-stance against convulsive fit of ep-mouse. Moreover, it could alleviate the seizure of epileptic patients, who were resistant to GABOB by its intrathecal administration.

4) GABA metabolism would phy the most essentiar role in epileptic seizure mechanism, namely derivatives of GABA, especially GABOB, GABA-choline, homocarnosine or γ-guanidinobutyric acid, play important roles as tramsmitters for the metabo-lic process of the epileptic seizure.


Copyright © 1964, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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