La maladie de Parkinson en France (serveur d'exploration)

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Functional recovery in a primate model of Parkinson's disease following motor cortex stimulation.

Identifieur interne : 000F81 ( PubMed/Corpus ); précédent : 000F80; suivant : 000F82

Functional recovery in a primate model of Parkinson's disease following motor cortex stimulation.

Auteurs : Xavier Drouot ; Satoru Oshino ; Bechir Jarraya ; Laurent Besret ; Haruhiko Kishima ; Philippe Remy ; Julien Dauguet ; Jean Pascal Lefaucheur ; Frédéric Dollé ; Françoise Condé ; Michel Bottlaender ; Marc Peschanski ; Yves Kéravel ; Philippe Hantraye ; Stéphane Palfi

Source :

RBID : pubmed:15572109

English descriptors

Abstract

A concept in Parkinson's disease postulates that motor cortex may pattern abnormal rhythmic activities in the basal ganglia, underlying the genesis of observed motor symptoms. We conducted a preclinical study of electrical interference in the primary motor cortex using a chronic MPTP primate model in which dopamine depletion was progressive and regularly documented using 18F-DOPA positron tomography. High-frequency motor cortex stimulation significantly reduced akinesia and bradykinesia. This behavioral benefit was associated with an increased metabolic activity in the supplementary motor area as assessed with 18-F-deoxyglucose PET, a normalization of mean firing rate in the internal globus pallidus (GPi) and the subthalamic nucleus (STN), and a reduction of synchronized oscillatory neuronal activities in these two structures. Motor cortex stimulation is a simple and safe procedure to modulate subthalamo-pallido-cortical loop and alleviate parkinsonian symptoms without requiring deep brain stereotactic surgery.

DOI: 10.1016/j.neuron.2004.11.023
PubMed: 15572109

Links to Exploration step

pubmed:15572109

Le document en format XML

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