Document Detail


N-methyl-D-aspartate stimulates dopamine release through nitric oxide formation in the nucleus accumbens of rats.
MedLine Citation:
PMID:  8616639     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Intracerebral microdialysis technique was utilized to study the effect of NG-nitro-L-arginine, a nitric oxide (NO) synthase inhibitor, on N-methyl-D-aspartate (NMDA)-induced dopamine overflow in the nucleus accumbens of unanesthetized, freely moving rats. Perfusion of 1 and 3 mM NMDA through the microdialysis probe dose-dependently increased the extracellular dopamine level in the nucleus accumbens. Coapplication of 0.5 mM D-(-)-2-amino-5-phosphonovaleric acid (D-AP5), a selective and competitive NMDA receptor antagonist, significantly reduced the dopamine overflow induced by 3 mM NMDA. Perfusion of 0.5 mM NG-nitro-L-arginine alone did not affect the basal dopamine level, whereas it suppressed the NMDA-evoked dopamine overflow in the nucleus accumbens when concurrently applied with 3 mM NMDA. These results suggest that NO mediates, at least in part, dopamine release resulting from NMDA receptor activation in the nucleus accumbens of rats.
Authors:
M Ohno; I Arai; S Watanabe
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Brain research     Volume:  699     ISSN:  0006-8993     ISO Abbreviation:  Brain Res.     Publication Date:  1995 Nov 
Date Detail:
Created Date:  1996-06-12     Completed Date:  1996-06-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0045503     Medline TA:  Brain Res     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  332-5     Citation Subset:  IM    
Affiliation:
Department of Pharmacology, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Arginine / pharmacology
Dopamine / metabolism,  secretion*
Dose-Response Relationship, Drug
Male
N-Methylaspartate / pharmacology*
Nitric Oxide / biosynthesis*
Nucleus Accumbens / drug effects*
Rats
Rats, Wistar
Chemical
Reg. No./Substance:
10102-43-9/Nitric Oxide; 6384-92-5/N-Methylaspartate; 74-79-3/Arginine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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