[Concentration of amino acids in synaptosomes of the rat brain in the preconvulsive phase of experimentally-induced seizures].

In the synaptic vesicae of rat brains the free amino acids were determined for control animals and experimental animals during the preconvulsive phase of induced cerebral spasms. Especially high concentrations were established for taurine, glutamic acid, asparaginic acid, gamma-aminobutyric acid and valine. Prior to a cerebral spasm the glutamic acid concentration is lowered in the synaptosomes.