σ Receptor ligands (+)-SKF10,047 and SA4503 improve dizocilpine-induced spatial memory deficits in rats

Li Bo Zou, Kiyofumi Yamada, Toshitaka Nabeshima

研究成果: Article

42 引用 (Scopus)

抄録

This study examined the effects of the σ receptor ligands (+)-N-allylnormetazocine ((+)-SKF10,047) and 1-(3,4-dimethoxyphenethyl)-4-(3-phenylpropyl)piperazine dihydrochloride (SA4503) on dizocilpine-induced impairment of working and reference memory in a radial arm maze task in rats. Dizocilpine, a non-competitive NMDA receptor antagonist, significantly impaired both reference and working memory, an effect which was accompanied by ataxia and impairment of food intake. The dizocilpine-induced impairment of reference memory was dose-dependently attenuated by (+)-SKF10,047 and SA4503. SA4503 also attenuated the dizocilpine-induced working memory impairment, although (+)-SKF10,047 had no effect. Neither σ receptor ligand affected the behavioral symptoms such as ataxia and impairment of food intake induced by dizocilpine. The ameliorating effects of both (+)-SKF10,047 and SA4503 on dizocilpine-induced spatial memory impairment were completely antagonized by a σ1 receptor antagonist N,N-dipropyl-2-[4-methoxy-3-(2-phenylethoxy)phenyl]-ethylamine-monohydrochloride. These results suggest that the interaction of σ1 receptors with NMDA receptors modulates spatial memory in rats. Copyright (C) 1998 Elsevier Science B.V.

元の言語English
ページ(範囲)1-10
ページ数10
ジャーナルEuropean Journal of Pharmacology
355
発行部数1
DOI
出版物ステータスPublished - 14-08-1998
外部発表Yes

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Dizocilpine Maleate
Memory Disorders
Ligands
Short-Term Memory
Ataxia
N-Methyl-D-Aspartate Receptors
Eating
Behavioral Symptoms
Spatial Memory
SA 4503

All Science Journal Classification (ASJC) codes

  • Pharmacology

これを引用

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