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Abstract

A study of the dose dependency of a glycine receptor antagonist in focal ischemia.

J Chen, S Graham, F Moroni and R Simon
Journal of Pharmacology and Experimental Therapeutics November 1993, 267 (2) 937-941;
J Chen
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S Graham
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F Moroni
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R Simon
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Abstract

N-methyl-D-aspartate receptor antagonists are potent neuroprotectants in experimental focal cerebral ischemia, but behavioral and neuropathologic changes seen with these drugs in rodent models may limit the clinical utility of these compounds. Glycine's modulation of N-methyl-D-aspartate channel function offers another pharmacologic approach to excitotoxicity in ischemia. The potent glycine antagonist 7 Chlorothiokynurenic acid (7-Cl-Thio-Kyna) was studied in a permanent middle cerebral artery occlusion stroke model in the rat. The compound was effective, in a dose-dependent manner, in attenuating infarct size when administered before or after permanent middle cerebral artery occlusion. Its activity was mainly due to glycine antagonism inasmuch as 5 Chlorothiokynurenic acid, a compound having other pharmacological activities in common with 7-CI-Thio-Kyna (for instance the radical scavenger action), was inactive in this model. 7-Cl-Thio-Kyna did not produce cytological changes similar to MK 801.

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Journal of Pharmacology and Experimental Therapeutics
Vol. 267, Issue 2
1 Nov 1993
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Abstract

A study of the dose dependency of a glycine receptor antagonist in focal ischemia.

J Chen, S Graham, F Moroni and R Simon
Journal of Pharmacology and Experimental Therapeutics November 1, 1993, 267 (2) 937-941;

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Abstract

A study of the dose dependency of a glycine receptor antagonist in focal ischemia.

J Chen, S Graham, F Moroni and R Simon
Journal of Pharmacology and Experimental Therapeutics November 1, 1993, 267 (2) 937-941;
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