Movement Disorders (revue)

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Noninvasive cortical stimulation with transcranial direct current stimulation in Parkinson's disease

Identifieur interne : 001368 ( PascalFrancis/Curation ); précédent : 001367; suivant : 001369

Noninvasive cortical stimulation with transcranial direct current stimulation in Parkinson's disease

Auteurs : Felipe Fregni [États-Unis] ; Paulo S. Boggio [Brésil] ; Marcelo C. Santos [Brésil] ; Moises Lima [Brésil] ; Adriana L. Vieira [Brésil] ; Sergio P. Rigonatti [Brésil] ; M. Teresa A. Silva [Brésil] ; Egberto R. Barbosa [Brésil] ; Michael A. Nitsche [Allemagne] ; Alvaro Pascual-Leone [États-Unis]

Source :

RBID : Pascal:06-0538589

Descripteurs français

English descriptors

Abstract

Electrical stimulation of deep brain structures, such as globus pallidus and subthalamic nucleus, is widely accepted as a therapeutic tool for patients with Parkinson's disease (PD). Cortical stimulation either with epidural implanted electrodes or repetitive transcranial magnetic stimulation can be associated with motor function enhancement in PD. We aimed to study the effects of another noninvasive technique of cortical brain stimulation, transcranial direct current stimulation (tDCS), on motor function and motor-evoked potential (MEP) characteristics of PD patients. We tested tDCS using different electrode montages [anodal stimulation of primary motor cortex (M1), cathodal stimulation of Ml, anodal stimulation of dorsolateral prefrontal cortex (DLPFC), and sham-stimulation] and evaluated the effects on motor function-as indexed by Unified Parkinson's Disease Rating Scale (UPDRS), simple reaction time (sRT) and Purdue Pegboard test-and on corticospinal motor excitability (MEP characteristics). All experiments were performed in a double-blinded manner. Anodal stimulation of Ml was associated with a significant improvement of motor function compared to sham-stimulation in the UPDRS (P < 0.001) and sRT (P = 0.019). This effect was not observed for cathodal stimulation of Ml or anodal stimulation of DLPFC. Furthermore, whereas anodal stimulation of Ml significantly increased MEP amplitude and area, cathodal stimulation of Ml significantly decreased them. There was a trend toward a significant correlation between motor function improvement after Ml anodal-tDCS and MEP area increase. These results confirm and extend the notion that cortical brain stimulation might improve motor function in patients with PD.
pA  
A01 01  1    @0 0885-3185
A03   1    @0 Mov. disord.
A05       @2 21
A06       @2 10
A08 01  1  ENG  @1 Noninvasive cortical stimulation with transcranial direct current stimulation in Parkinson's disease
A11 01  1    @1 FREGNI (Felipe)
A11 02  1    @1 BOGGIO (Paulo S.)
A11 03  1    @1 SANTOS (Marcelo C.)
A11 04  1    @1 LIMA (Moises)
A11 05  1    @1 VIEIRA (Adriana L.)
A11 06  1    @1 RIGONATTI (Sergio P.)
A11 07  1    @1 SILVA (M. Teresa A.)
A11 08  1    @1 BARBOSA (Egberto R.)
A11 09  1    @1 NITSCHE (Michael A.)
A11 10  1    @1 PASCUAL-LEONE (Alvaro)
A14 01      @1 Harvard Center for Non-Invasive Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School @2 Boston, Massachusetts @3 USA @Z 1 aut. @Z 10 aut.
A14 02      @1 Departments of Experimental Psychology (Institute of Psychology), Psychiatry, and Neurology, University of Sao Paulo @2 Sao Paulo @3 BRA @Z 2 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut. @Z 7 aut. @Z 8 aut.
A14 03      @1 Neuroscience Department, Mackenzie University @2 Sao Paulo @3 BRA @Z 2 aut.
A14 04      @1 Department of Clinical Neurophysiology, Georg August University @2 Goettingen @3 DEU @Z 9 aut.
A20       @1 1693-1702
A21       @1 2006
A23 01      @0 ENG
A43 01      @1 INIST @2 20953 @5 354000158877800190
A44       @0 0000 @1 © 2006 INIST-CNRS. All rights reserved.
A45       @0 38 ref.
A47 01  1    @0 06-0538589
A60       @1 P
A61       @0 A
A64 01  1    @0 Movement disorders
A66 01      @0 USA
C01 01    ENG  @0 Electrical stimulation of deep brain structures, such as globus pallidus and subthalamic nucleus, is widely accepted as a therapeutic tool for patients with Parkinson's disease (PD). Cortical stimulation either with epidural implanted electrodes or repetitive transcranial magnetic stimulation can be associated with motor function enhancement in PD. We aimed to study the effects of another noninvasive technique of cortical brain stimulation, transcranial direct current stimulation (tDCS), on motor function and motor-evoked potential (MEP) characteristics of PD patients. We tested tDCS using different electrode montages [anodal stimulation of primary motor cortex (M1), cathodal stimulation of Ml, anodal stimulation of dorsolateral prefrontal cortex (DLPFC), and sham-stimulation] and evaluated the effects on motor function-as indexed by Unified Parkinson's Disease Rating Scale (UPDRS), simple reaction time (sRT) and Purdue Pegboard test-and on corticospinal motor excitability (MEP characteristics). All experiments were performed in a double-blinded manner. Anodal stimulation of Ml was associated with a significant improvement of motor function compared to sham-stimulation in the UPDRS (P < 0.001) and sRT (P = 0.019). This effect was not observed for cathodal stimulation of Ml or anodal stimulation of DLPFC. Furthermore, whereas anodal stimulation of Ml significantly increased MEP amplitude and area, cathodal stimulation of Ml significantly decreased them. There was a trend toward a significant correlation between motor function improvement after Ml anodal-tDCS and MEP area increase. These results confirm and extend the notion that cortical brain stimulation might improve motor function in patients with PD.
C02 01  X    @0 002B17
C02 02  X    @0 002B17G
C02 03  X    @0 002B17A03
C03 01  X  FRE  @0 Système nerveux pathologie @5 01
C03 01  X  ENG  @0 Nervous system diseases @5 01
C03 01  X  SPA  @0 Sistema nervioso patología @5 01
C03 02  X  FRE  @0 Parkinson maladie @5 02
C03 02  X  ENG  @0 Parkinson disease @5 02
C03 02  X  SPA  @0 Parkinson enfermedad @5 02
C03 03  X  FRE  @0 Courant continu @5 09
C03 03  X  ENG  @0 Direct current @5 09
C03 03  X  SPA  @0 Corriente contínua @5 09
C07 01  X  FRE  @0 Encéphale pathologie @5 37
C07 01  X  ENG  @0 Cerebral disorder @5 37
C07 01  X  SPA  @0 Encéfalo patología @5 37
C07 02  X  FRE  @0 Extrapyramidal syndrome @5 38
C07 02  X  ENG  @0 Extrapyramidal syndrome @5 38
C07 02  X  SPA  @0 Extrapiramidal síndrome @5 38
C07 03  X  FRE  @0 Maladie dégénérative @5 39
C07 03  X  ENG  @0 Degenerative disease @5 39
C07 03  X  SPA  @0 Enfermedad degenerativa @5 39
C07 04  X  FRE  @0 Système nerveux central pathologie @5 40
C07 04  X  ENG  @0 Central nervous system disease @5 40
C07 04  X  SPA  @0 Sistema nervosio central patología @5 40
N21       @1 353
N44 01      @1 OTO
N82       @1 OTO

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<div type="abstract" xml:lang="en">Electrical stimulation of deep brain structures, such as globus pallidus and subthalamic nucleus, is widely accepted as a therapeutic tool for patients with Parkinson's disease (PD). Cortical stimulation either with epidural implanted electrodes or repetitive transcranial magnetic stimulation can be associated with motor function enhancement in PD. We aimed to study the effects of another noninvasive technique of cortical brain stimulation, transcranial direct current stimulation (tDCS), on motor function and motor-evoked potential (MEP) characteristics of PD patients. We tested tDCS using different electrode montages [anodal stimulation of primary motor cortex (M1), cathodal stimulation of Ml, anodal stimulation of dorsolateral prefrontal cortex (DLPFC), and sham-stimulation] and evaluated the effects on motor function-as indexed by Unified Parkinson's Disease Rating Scale (UPDRS), simple reaction time (sRT) and Purdue Pegboard test-and on corticospinal motor excitability (MEP characteristics). All experiments were performed in a double-blinded manner. Anodal stimulation of Ml was associated with a significant improvement of motor function compared to sham-stimulation in the UPDRS (P < 0.001) and sRT (P = 0.019). This effect was not observed for cathodal stimulation of Ml or anodal stimulation of DLPFC. Furthermore, whereas anodal stimulation of Ml significantly increased MEP amplitude and area, cathodal stimulation of Ml significantly decreased them. There was a trend toward a significant correlation between motor function improvement after Ml anodal-tDCS and MEP area increase. These results confirm and extend the notion that cortical brain stimulation might improve motor function in patients with PD.</div>
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