Movement Disorders (revue)

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Responsiveness to levodopa in epsilon-sarcoglycan deletions.

Identifieur interne : 001E77 ( PubMed/Corpus ); précédent : 001E76; suivant : 001E78

Responsiveness to levodopa in epsilon-sarcoglycan deletions.

Auteurs : Marta San Luciano ; Laurie Ozelius ; Katherine Sims ; Deborah Raymond ; Liu Liu ; Rachel Saunders-Pullman

Source :

RBID : pubmed:19133653

English descriptors

Abstract

Myoclonus-dystonia (M-D) is characterized by early-onset myoclonus and dystonia, and is often due to mutations in the epsilon-sarcoglycan gene (SCGE) at locus 7q21. The pathogenesis of M-D is poorly understood, and in a murine knockout model, dopaminergic hyperactivity has been postulated as a mechanism. We present two unrelated individuals with M-D due to SCGE deletions who displayed a robust and sustained response to levodopa (L-dopa) treatment. In contrast to using dopamine blocking agents suggested by the hyperdopaminergic knockout model, we propose that a trial of L-dopa may be considered in patients with myoclonus-dystonia.

DOI: 10.1002/mds.22375
PubMed: 19133653

Links to Exploration step

pubmed:19133653

Le document en format XML

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<name sortKey="Luciano, Marta San" sort="Luciano, Marta San" uniqKey="Luciano M" first="Marta San" last="Luciano">Marta San Luciano</name>
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<div type="abstract" xml:lang="en">Myoclonus-dystonia (M-D) is characterized by early-onset myoclonus and dystonia, and is often due to mutations in the epsilon-sarcoglycan gene (SCGE) at locus 7q21. The pathogenesis of M-D is poorly understood, and in a murine knockout model, dopaminergic hyperactivity has been postulated as a mechanism. We present two unrelated individuals with M-D due to SCGE deletions who displayed a robust and sustained response to levodopa (L-dopa) treatment. In contrast to using dopamine blocking agents suggested by the hyperdopaminergic knockout model, we propose that a trial of L-dopa may be considered in patients with myoclonus-dystonia.</div>
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