Intact presupplementary motor area function in early, untreated Parkinson's disease
Identifieur interne : 002311 ( Main/Exploration ); précédent : 002310; suivant : 002312Intact presupplementary motor area function in early, untreated Parkinson's disease
Auteurs : W. R. Wayne Martin [Canada] ; Marguerite Wieler [Canada] ; Myrlene Gee [Canada] ; Christopher C. Hanstock [Canada] ; Richard M. Camicioli [Canada]Source :
- Movement Disorders [ 0885-3185 ] ; 2008-09-15.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
- Aged, Aspartic Acid (analogs & derivatives), Aspartic Acid (analysis), Case-Control Studies, Choline (analysis), Creatine (analysis), Female, Humans, Magnetic Resonance Spectroscopy (methods), Male, Middle Aged, Motor Cortex (metabolism), Motor Cortex (physiopathology), NMR spectrometry, Nervous system diseases, Parkinson Disease (pathology), Parkinson Disease (physiopathology), Parkinson disease, Parkinson's disease, Supplementary motor area, magnetic resonance spectroscopy, supplementary motor area.
- MESH :
- chemical , analogs & derivatives : Aspartic Acid.
- chemical , analysis : Aspartic Acid, Choline, Creatine.
- metabolism : Motor Cortex.
- methods : Magnetic Resonance Spectroscopy.
- pathology : Parkinson Disease.
- physiopathology : Motor Cortex, Parkinson Disease.
- Aged, Case-Control Studies, Female, Humans, Male, Middle Aged.
Abstract
Although motor symptoms of Parkinson's disease (PD) are initially responsive to dopamine replacement therapy, nonresponsive features develop over time, suggesting that impaired dopaminergic function alone may not be wholly responsible for all the motor features of the disease. Previous studies suggest impaired function in the presupplementary motor area (pre‐SMA) in PD. Our objective was to determine whether pre‐SMA abnormalities are present in untreated patients with early disease. We measured N‐acetyl aspartate (NAA)/creatine (Cr) and choline (Cho)/Cr ratios in pre‐SMA in 26 untreated patients with early PD (disease duration 3.0 ± 2.0 yr) and 15 control subjects with single voxel magnetic resonance spectroscopy. Neither NAA/Cr nor Cho/Cr ratios differed significantly between groups. These observations suggest that, although pre‐SMA function is impaired in moderately advanced PD, it is relatively spared in early disease. We suggest that pre‐SMA dysfunction is in part responsible for the dopamine nonresponsive features associated with disease progression. © 2008 Movement Disorder Society
Url:
DOI: 10.1002/mds.22101
Affiliations:
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Le document en format XML
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Wayne Martin</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Division of Neurology, University of Alberta, Edmonton, Alberta</wicri:regionArea><wicri:noRegion>Alberta</wicri:noRegion></affiliation><affiliation wicri:level="1"><country>Canada</country><wicri:regionArea>Movement Disorders Clinic, Glenrose Rehabilitation Hospital, 10230‐111 Avenue, Edmonton, AB</wicri:regionArea><wicri:noRegion>AB</wicri:noRegion></affiliation></author><author><name sortKey="Wieler, Marguerite" sort="Wieler, Marguerite" uniqKey="Wieler M" first="Marguerite" last="Wieler">Marguerite Wieler</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Division of Neurology, University of Alberta, Edmonton, Alberta</wicri:regionArea><wicri:noRegion>Alberta</wicri:noRegion></affiliation></author><author><name sortKey="Gee, Myrlene" sort="Gee, Myrlene" uniqKey="Gee M" first="Myrlene" last="Gee">Myrlene Gee</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta</wicri:regionArea><wicri:noRegion>Alberta</wicri:noRegion></affiliation></author><author><name sortKey="Hanstock, Christopher C" sort="Hanstock, Christopher C" uniqKey="Hanstock C" first="Christopher C." last="Hanstock">Christopher C. 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Previous studies suggest impaired function in the presupplementary motor area (pre‐SMA) in PD. Our objective was to determine whether pre‐SMA abnormalities are present in untreated patients with early disease. We measured N‐acetyl aspartate (NAA)/creatine (Cr) and choline (Cho)/Cr ratios in pre‐SMA in 26 untreated patients with early PD (disease duration 3.0 ± 2.0 yr) and 15 control subjects with single voxel magnetic resonance spectroscopy. Neither NAA/Cr nor Cho/Cr ratios differed significantly between groups. These observations suggest that, although pre‐SMA function is impaired in moderately advanced PD, it is relatively spared in early disease. We suggest that pre‐SMA dysfunction is in part responsible for the dopamine nonresponsive features associated with disease progression. © 2008 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Martin, W R Wayne" sort="Martin, W R Wayne" uniqKey="Martin W" first="W. R. Wayne" last="Martin">W. R. Wayne Martin</name></noRegion><name sortKey="Camicioli, Richard M" sort="Camicioli, Richard M" uniqKey="Camicioli R" first="Richard M." last="Camicioli">Richard M. Camicioli</name><name sortKey="Gee, Myrlene" sort="Gee, Myrlene" uniqKey="Gee M" first="Myrlene" last="Gee">Myrlene Gee</name><name sortKey="Hanstock, Christopher C" sort="Hanstock, Christopher C" uniqKey="Hanstock C" first="Christopher C." last="Hanstock">Christopher C. Hanstock</name><name sortKey="Martin, W R Wayne" sort="Martin, W R Wayne" uniqKey="Martin W" first="W. R. Wayne" last="Martin">W. R. Wayne Martin</name><name sortKey="Wieler, Marguerite" sort="Wieler, Marguerite" uniqKey="Wieler M" first="Marguerite" last="Wieler">Marguerite Wieler</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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