Document Detail


Supersensitivity of quinpirole-evoked GTPase activation without changes in gene expression of D2 and Gi protein in the striatum of hemi-dopaminergic lesioned rats.
MedLine Citation:
PMID:  7970188     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Quinpirole with D2 agonist activity showed a two-fold increase in the GTPase activity in the 6-hydroxydopamine-lesioned side of the striatum, compared with that in the control side. However, neither qualitative nor quantitative changes were observed in the gene expression of two alternative splicing products derived from dopamine D2 receptor gene or of Gil alpha, in the RNAase protection assay. These results suggest that D2 receptor-mediated supersensitization does not come from the D2 receptor upregulation.
Authors:
A Inoue; H Ueda; Y Nakata; Y Misu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Neuroscience letters     Volume:  175     ISSN:  0304-3940     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  1994 Jul 
Date Detail:
Created Date:  1994-12-29     Completed Date:  1994-12-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  107-10     Citation Subset:  IM    
Affiliation:
Department of Pharmacology, Yokohama City University, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Base Sequence
Cell Membrane / metabolism
Corpus Striatum / drug effects,  metabolism,  physiology*
DNA Primers
Dopamine / physiology
Dopamine Agonists / pharmacology*
Dose-Response Relationship, Drug
Enzyme Activation
Ergolines / pharmacology*
GTP Phosphohydrolases / metabolism*
GTP-Binding Proteins / biosynthesis*
Gene Expression*
Male
Molecular Sequence Data
Polymerase Chain Reaction
Quinpirole
Rats
Rats, Sprague-Dawley
Receptors, Dopamine D2 / biosynthesis*
Reference Values
Sulpiride / pharmacology
Chemical
Reg. No./Substance:
0/DNA Primers; 0/Dopamine Agonists; 0/Ergolines; 0/Receptors, Dopamine D2; 15676-16-1/Sulpiride; 85760-74-3/Quinpirole; EC 3.6.1.-/GTP Phosphohydrolases; EC 3.6.1.-/GTP-Binding Proteins

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


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