Inhibitory Effect of NMDA on Dopaminergic Transmission in a Slice Preparation of Rat Globus Pallidus

Tomomi Shindou, Tomomi Shindou, Shuichi Koizumi, Yasufumi Kataoka, Kenji Yamamoto, Hiroshi Nakanishi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The effect of N-mcthyl-D-aspartate (NMDA) on KCl-evoked endogenous dopamine (DA) release from slices of rat globus pallidus (GP) was examined. NMDA inhibited the KCl-evoked DA release in a dose-dependent manner. This inhibition was blocked by CPP, an NMDA antagonist. Tetrodotoxin partially antagonized the effect of NMDA. The NMDA-induced inhibition was also partially antagonized by bicuculline methiodide and was mimicked by muscimol. These results strongly suggest that 1) an activation of NMDA receptors exerts an inhibitory effect on dopaminergic transmission in GP and 2) GABAergic transmission is involved in the effect of NMDA.

Original languageEnglish
Pages (from-to)79-82
Number of pages4
JournalThe Japanese Journal of Pharmacology
Volume58
Issue number1
DOIs
Publication statusPublished - Jan 1992

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D-Aspartic Acid
Globus Pallidus
Dopamine
Muscimol
Tetrodotoxin

All Science Journal Classification (ASJC) codes

  • Pharmacology

Cite this

Inhibitory Effect of NMDA on Dopaminergic Transmission in a Slice Preparation of Rat Globus Pallidus. / Shindou, Tomomi; Shindou, Tomomi; Koizumi, Shuichi; Kataoka, Yasufumi; Yamamoto, Kenji; Nakanishi, Hiroshi.

In: The Japanese Journal of Pharmacology, Vol. 58, No. 1, 01.1992, p. 79-82.

Research output: Contribution to journalArticle

Shindou, T, Shindou, T, Koizumi, S, Kataoka, Y, Yamamoto, K & Nakanishi, H 1992, 'Inhibitory Effect of NMDA on Dopaminergic Transmission in a Slice Preparation of Rat Globus Pallidus', The Japanese Journal of Pharmacology, vol. 58, no. 1, pp. 79-82. https://doi.org/10.1254/jjp.58.79
Shindou, Tomomi ; Shindou, Tomomi ; Koizumi, Shuichi ; Kataoka, Yasufumi ; Yamamoto, Kenji ; Nakanishi, Hiroshi. / Inhibitory Effect of NMDA on Dopaminergic Transmission in a Slice Preparation of Rat Globus Pallidus. In: The Japanese Journal of Pharmacology. 1992 ; Vol. 58, No. 1. pp. 79-82.
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