Quinolinic acid evoked the release of [3H]acetylcholine from striatal slices with an EC50of approximately 2 mM and an efficacy similar to that of N-methyl-D,L-aspartic acid. (±)-2-Amino-5-phosphonopentanoic acid and (-)-2-amino-7-phosphonoheptanoic acid antagonized quinolinic acid-evoked release, while glutamate diethylester and 2-amino-4-phosphonobutyric acid were ineffective as antagonists. Release of [3H]acetylcholine evoked by quinolinic acid was strongly attenuated by the presence of magnesium (1.2 mM) in the medium. The results are consistent with the interaction of quinolinic acid with NMDA-type excitatory amino acid receptors on the striatal cholinergic interneurons. © 1983.
Lehmann, J., Schaefer, P., Ferkany, J. W., & Coyle, J. T. (1983). Quinolinic acid evokes [3H]acetylcholine release in striatal slices: Mediation by NMDA-type excitatory amino acid receptors. European Journal of Pharmacology, 96(1–2), 111–115. https://doi.org/10.1016/0014-2999(83)90536-8