The effect of diphenylhydantoin on spreading depression

Autor: S R, Chebabo, R J, Do-Carmo, H, Martins-Ferreira
Rok vydání: 1988
Předmět:
Zdroj: Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas. 21(3)
ISSN: 0100-879X
Popis: The present study examines the effect of diphenylhydantoin on the elicitation by K+ and propagation of spreading depression in chick retina preparations in vitro. A dose-related decrease in the velocity of propagation was observed, this effect being lessened by increasing the pH of the Ringer bathing the preparation. Changes in Ringer Cl- concentration also altered the efficacy of the drug, higher concentrations enhancing and lower concentrations reducing efficacy. The threshold concentration of K+ necessary to elicit the reaction was elevated by diphenylhydantoin.
Databáze: OpenAIRE