Dopamine D1 receptor expression in human basal ganglia and changes in Parkinson’s disease
Identifieur interne : 001968 ( Main/Exploration ); précédent : 001967; suivant : 001969Dopamine D1 receptor expression in human basal ganglia and changes in Parkinson’s disease
Auteurs : Michael J. Hurley [Royaume-Uni, États-Unis] ; Deborah C. Mash [États-Unis] ; Peter Jenner [Royaume-Uni]Source :
- Molecular Brain Research [ 0169-328X ] ; 2001.
Abstract
The expression of the human dopamine D1 receptor was examined by reverse transcription polymerase chain reaction (RT-PCR) and radioligand binding using [3H]-SCH23390 in post-mortem brain tissue that was obtained from normal subjects and patients dying with Parkinson’s disease who were receiving treatment with dopaminergic drugs. D1 receptor mRNA and specific [3H]-SCH23390 binding sites were found in both striatal (nucleus accumbens, caudate nucleus and putamen) and extrastriatal (globus pallidus and substantia nigra) brain regions. In parkinsonian brain, D1 receptor mRNA was increased in the nucleus accumbens, while a decrease was detected in the substantia nigra pars compacta. No change in D1 mRNA levels was found in the other brain areas examined. An increase in the density of specific [3H]-SCH23390 binding sites was found in the anterior putamen and a decrease in the external segment of the globus pallidus, no changes were detected elsewhere. This study demonstrates that regulation of D1 receptor expression in the brain of patients dying with Parkinson’s disease that were treated with l-DOPA is confined to small alterations in restricted brain regions.
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DOI: 10.1016/S0169-328X(01)00022-5
Affiliations:
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D1 receptor mRNA and specific [3H]-SCH23390 binding sites were found in both striatal (nucleus accumbens, caudate nucleus and putamen) and extrastriatal (globus pallidus and substantia nigra) brain regions. In parkinsonian brain, D1 receptor mRNA was increased in the nucleus accumbens, while a decrease was detected in the substantia nigra pars compacta. No change in D1 mRNA levels was found in the other brain areas examined. An increase in the density of specific [3H]-SCH23390 binding sites was found in the anterior putamen and a decrease in the external segment of the globus pallidus, no changes were detected elsewhere. This study demonstrates that regulation of D1 receptor expression in the brain of patients dying with Parkinson’s disease that were treated with l-DOPA is confined to small alterations in restricted brain regions.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li><li>États-Unis</li></country><region><li>Floride</li></region></list><tree><country name="Royaume-Uni"><noRegion><name sortKey="Hurley, Michael J" sort="Hurley, Michael J" uniqKey="Hurley M" first="Michael J" last="Hurley">Michael J. Hurley</name></noRegion><name sortKey="Jenner, Peter" sort="Jenner, Peter" uniqKey="Jenner P" first="Peter" last="Jenner">Peter Jenner</name></country><country name="États-Unis"><region name="Floride"><name sortKey="Hurley, Michael J" sort="Hurley, Michael J" uniqKey="Hurley M" first="Michael J" last="Hurley">Michael J. Hurley</name></region><name sortKey="Mash, Deborah C" sort="Mash, Deborah C" uniqKey="Mash D" first="Deborah C" last="Mash">Deborah C. 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