Changes of GABA receptors and dopamine turnover in the postmortem brains of parkinsonians with levodopa-induced motor complications.
Identifieur interne : 003188 ( Main/Merge ); précédent : 003187; suivant : 003189Changes of GABA receptors and dopamine turnover in the postmortem brains of parkinsonians with levodopa-induced motor complications.
Auteurs : Frédéric Calon [Canada] ; Marc Morissette ; Ali H. Rajput ; Oleh Hornykiewicz ; Paul J. Bédard ; Thérèse Di PaoloSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2003.
English descriptors
- KwdEn :
- Aged, Aged, 80 and over, Antiparkinson Agents (adverse effects), Antiparkinson Agents (therapeutic use), Autoradiography, Brain (metabolism), Case-Control Studies, Dopamine (metabolism), Dyskinesia, Drug-Induced (metabolism), Dyskinesia, Drug-Induced (physiopathology), Female, Globus Pallidus (metabolism), Humans, Levodopa (adverse effects), Levodopa (therapeutic use), Male, Parkinson Disease (drug therapy), Parkinson Disease (metabolism), Postmortem Changes, Receptors, GABA (metabolism), Receptors, GABA-A (metabolism), Receptors, GABA-B (metabolism).
- MESH :
- chemical , adverse effects : Antiparkinson Agents, Levodopa.
- chemical , metabolism : Dopamine, Receptors, GABA, Receptors, GABA-A, Receptors, GABA-B.
- chemical , therapeutic use : Antiparkinson Agents, Levodopa.
- drug therapy : Parkinson Disease.
- metabolism : Brain, Dyskinesia, Drug-Induced, Globus Pallidus, Parkinson Disease.
- physiopathology : Dyskinesia, Drug-Induced.
- Aged, Aged, 80 and over, Autoradiography, Case-Control Studies, Female, Humans, Male, Postmortem Changes.
Abstract
Brain samples from 14 Parkinson's disease patients, 10 of whom developed motor complications (dyskinesias and/or wearing-off) on dopaminomimetic therapy, and 11 controls were analyzed. Striatal 3beta-(4-(125)I-iodophenyl)tropane-2beta-carboxylic acid isopropyl ester ([(125)I]RTI-121) -specific binding to dopamine transporter and concentration of dopamine were markedly decreased, but no association between level of denervation and development of motor complications was observed. The homovanillic acid/dopamine ratio of concentrations was higher in putamen of patients with wearing-off compared to those without. Striatal (35)S-labeled t-butylbicyclophosphorothionate ([(35)S]TBPS) and [(3)H]flunitrazepam binding to GABA(A) receptors were unchanged in patients with Parkinson's disease, whereas [(125)I]CGP 64213 -specific binding to GABA(B) receptors was decreased in the putamen and external segment of the globus pallidus of parkinsonian patients compared with controls. [(3)H]Flunitrazepam binding was increased in the putamen of patients with wearing-off compared to those without. [(35)S]TBPS-specific binding was increased in the ventral internal globus pallidus of dyskinetic subjects. These data suggest altered dopamine metabolism and increased GABA(A) receptors in the putamen related to the pathophysiology of wearing-off. The present results also suggest that an up-regulation of GABA(A) receptors in the internal globus pallidus is linked to the pathogenesis of levodopa-induced dyskinesias.
DOI: 10.1002/mds.10343
PubMed: 12621627
Links toward previous steps (curation, corpus...)
- to stream PubMed, to step Corpus: 001451
- to stream PubMed, to step Curation: 001451
- to stream PubMed, to step Checkpoint: 001451
- to stream Ncbi, to step Merge: 000284
- to stream Ncbi, to step Curation: 000284
- to stream Ncbi, to step Checkpoint: 000284
Links to Exploration step
pubmed:12621627Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Changes of GABA receptors and dopamine turnover in the postmortem brains of parkinsonians with levodopa-induced motor complications.</title>
<author><name sortKey="Calon, Frederic" sort="Calon, Frederic" uniqKey="Calon F" first="Frédéric" last="Calon">Frédéric Calon</name>
<affiliation wicri:level="1"><nlm:affiliation>Molecular Endocrinology and Oncology Research Center, Laval University Medical Center (CHUL), Laval University, 2705 Laurier Boulevard, Québec, PQ G1V 4G2, Canada.</nlm:affiliation>
<country xml:lang="fr">Canada</country>
<wicri:regionArea>Molecular Endocrinology and Oncology Research Center, Laval University Medical Center (CHUL), Laval University, 2705 Laurier Boulevard, Québec, PQ G1V 4G2</wicri:regionArea>
<wicri:noRegion>PQ G1V 4G2</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Morissette, Marc" sort="Morissette, Marc" uniqKey="Morissette M" first="Marc" last="Morissette">Marc Morissette</name>
</author>
<author><name sortKey="Rajput, Ali H" sort="Rajput, Ali H" uniqKey="Rajput A" first="Ali H" last="Rajput">Ali H. Rajput</name>
</author>
<author><name sortKey="Hornykiewicz, Oleh" sort="Hornykiewicz, Oleh" uniqKey="Hornykiewicz O" first="Oleh" last="Hornykiewicz">Oleh Hornykiewicz</name>
</author>
<author><name sortKey="Bedard, Paul J" sort="Bedard, Paul J" uniqKey="Bedard P" first="Paul J" last="Bédard">Paul J. Bédard</name>
</author>
<author><name sortKey="Di Paolo, Therese" sort="Di Paolo, Therese" uniqKey="Di Paolo T" first="Thérèse" last="Di Paolo">Thérèse Di Paolo</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PubMed</idno>
<date when="2003">2003</date>
<idno type="RBID">pubmed:12621627</idno>
<idno type="pmid">12621627</idno>
<idno type="doi">10.1002/mds.10343</idno>
<idno type="wicri:Area/PubMed/Corpus">001451</idno>
<idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">001451</idno>
<idno type="wicri:Area/PubMed/Curation">001451</idno>
<idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">001451</idno>
<idno type="wicri:Area/PubMed/Checkpoint">001451</idno>
<idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">001451</idno>
<idno type="wicri:Area/Ncbi/Merge">000284</idno>
<idno type="wicri:Area/Ncbi/Curation">000284</idno>
<idno type="wicri:Area/Ncbi/Checkpoint">000284</idno>
<idno type="wicri:doubleKey">0885-3185:2003:Calon F:changes:of:gaba</idno>
<idno type="wicri:Area/Main/Merge">003188</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en">Changes of GABA receptors and dopamine turnover in the postmortem brains of parkinsonians with levodopa-induced motor complications.</title>
<author><name sortKey="Calon, Frederic" sort="Calon, Frederic" uniqKey="Calon F" first="Frédéric" last="Calon">Frédéric Calon</name>
<affiliation wicri:level="1"><nlm:affiliation>Molecular Endocrinology and Oncology Research Center, Laval University Medical Center (CHUL), Laval University, 2705 Laurier Boulevard, Québec, PQ G1V 4G2, Canada.</nlm:affiliation>
<country xml:lang="fr">Canada</country>
<wicri:regionArea>Molecular Endocrinology and Oncology Research Center, Laval University Medical Center (CHUL), Laval University, 2705 Laurier Boulevard, Québec, PQ G1V 4G2</wicri:regionArea>
<wicri:noRegion>PQ G1V 4G2</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Morissette, Marc" sort="Morissette, Marc" uniqKey="Morissette M" first="Marc" last="Morissette">Marc Morissette</name>
</author>
<author><name sortKey="Rajput, Ali H" sort="Rajput, Ali H" uniqKey="Rajput A" first="Ali H" last="Rajput">Ali H. Rajput</name>
</author>
<author><name sortKey="Hornykiewicz, Oleh" sort="Hornykiewicz, Oleh" uniqKey="Hornykiewicz O" first="Oleh" last="Hornykiewicz">Oleh Hornykiewicz</name>
</author>
<author><name sortKey="Bedard, Paul J" sort="Bedard, Paul J" uniqKey="Bedard P" first="Paul J" last="Bédard">Paul J. Bédard</name>
</author>
<author><name sortKey="Di Paolo, Therese" sort="Di Paolo, Therese" uniqKey="Di Paolo T" first="Thérèse" last="Di Paolo">Thérèse Di Paolo</name>
</author>
</analytic>
<series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title>
<idno type="ISSN">0885-3185</idno>
<imprint><date when="2003" type="published">2003</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term>
<term>Aged, 80 and over</term>
<term>Antiparkinson Agents (adverse effects)</term>
<term>Antiparkinson Agents (therapeutic use)</term>
<term>Autoradiography</term>
<term>Brain (metabolism)</term>
<term>Case-Control Studies</term>
<term>Dopamine (metabolism)</term>
<term>Dyskinesia, Drug-Induced (metabolism)</term>
<term>Dyskinesia, Drug-Induced (physiopathology)</term>
<term>Female</term>
<term>Globus Pallidus (metabolism)</term>
<term>Humans</term>
<term>Levodopa (adverse effects)</term>
<term>Levodopa (therapeutic use)</term>
<term>Male</term>
<term>Parkinson Disease (drug therapy)</term>
<term>Parkinson Disease (metabolism)</term>
<term>Postmortem Changes</term>
<term>Receptors, GABA (metabolism)</term>
<term>Receptors, GABA-A (metabolism)</term>
<term>Receptors, GABA-B (metabolism)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="adverse effects" xml:lang="en"><term>Antiparkinson Agents</term>
<term>Levodopa</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Dopamine</term>
<term>Receptors, GABA</term>
<term>Receptors, GABA-A</term>
<term>Receptors, GABA-B</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="therapeutic use" xml:lang="en"><term>Antiparkinson Agents</term>
<term>Levodopa</term>
</keywords>
<keywords scheme="MESH" qualifier="drug therapy" xml:lang="en"><term>Parkinson Disease</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Brain</term>
<term>Dyskinesia, Drug-Induced</term>
<term>Globus Pallidus</term>
<term>Parkinson Disease</term>
</keywords>
<keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Dyskinesia, Drug-Induced</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Aged</term>
<term>Aged, 80 and over</term>
<term>Autoradiography</term>
<term>Case-Control Studies</term>
<term>Female</term>
<term>Humans</term>
<term>Male</term>
<term>Postmortem Changes</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Brain samples from 14 Parkinson's disease patients, 10 of whom developed motor complications (dyskinesias and/or wearing-off) on dopaminomimetic therapy, and 11 controls were analyzed. Striatal 3beta-(4-(125)I-iodophenyl)tropane-2beta-carboxylic acid isopropyl ester ([(125)I]RTI-121) -specific binding to dopamine transporter and concentration of dopamine were markedly decreased, but no association between level of denervation and development of motor complications was observed. The homovanillic acid/dopamine ratio of concentrations was higher in putamen of patients with wearing-off compared to those without. Striatal (35)S-labeled t-butylbicyclophosphorothionate ([(35)S]TBPS) and [(3)H]flunitrazepam binding to GABA(A) receptors were unchanged in patients with Parkinson's disease, whereas [(125)I]CGP 64213 -specific binding to GABA(B) receptors was decreased in the putamen and external segment of the globus pallidus of parkinsonian patients compared with controls. [(3)H]Flunitrazepam binding was increased in the putamen of patients with wearing-off compared to those without. [(35)S]TBPS-specific binding was increased in the ventral internal globus pallidus of dyskinetic subjects. These data suggest altered dopamine metabolism and increased GABA(A) receptors in the putamen related to the pathophysiology of wearing-off. The present results also suggest that an up-regulation of GABA(A) receptors in the internal globus pallidus is linked to the pathogenesis of levodopa-induced dyskinesias.</div>
</front>
</TEI>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Main/Merge
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003188 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Merge/biblio.hfd -nk 003188 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Canada |area= ParkinsonCanadaV1 |flux= Main |étape= Merge |type= RBID |clé= pubmed:12621627 |texte= Changes of GABA receptors and dopamine turnover in the postmortem brains of parkinsonians with levodopa-induced motor complications. }}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Merge/RBID.i -Sk "pubmed:12621627" \ | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Merge/biblio.hfd \ | NlmPubMed2Wicri -a ParkinsonCanadaV1
This area was generated with Dilib version V0.6.29. |