Kynurenic acid inhibits synaptic and acidic amino acid-induced responses in the rat hippocampus and spinal cord.
Brain Res
; 273(1): 170-4, 1983 Aug 22.
Article
en En
| MEDLINE
| ID: mdl-6311346
ABSTRACT
Kynurenic acid, a tryptophan metabolite, inhibits excitatory synaptic transmission in the rat hippocampal slice and the isolated immature rat spinal cord, but does not affect membrane potential or input resistance of hippocampal CA1 pyramidal cells. Kynurenic acid also antagonizes responses induced in the dentate gyrus by excitatory amino acids, particularly N-methyl-DL-aspartate and the endogenous excitant quinolinic acid. These results indicate that kynurenic acid antagonizes synaptic transmission probably by blocking postsynaptic transmitter receptors at putative amino acid mediated synapses.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Médula Espinal
/
Transmisión Sináptica
/
Hipocampo
/
Ácido Quinurénico
Límite:
Animals
Idioma:
En
Revista:
Brain Res
Año:
1983
Tipo del documento:
Article