Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2011-4-26
pubmed:abstractText
Levodopa-induced dyskinesias represent disabling complications from long-term therapy with dopaminergic drugs for treating Parkinson's disease (PD). Although several neuroimaging studies have reported altered striatofrontal function that contributes to the emergence of these motor complications, the neuroanatomical correlates of this disorder are still unknown. Optimized voxel-based morphometry (VBM) was applied to the MRI brain images of 36 PD patients with levodopa-induced dyskinesias, 36 PD patients without levodopa-induced dyskinesias, and 32 age- and sex-matched controls. The VBM analysis comparing dyskinetic and nondyskinetic groups provided evidence of increased gray matter volume of the bilateral inferior frontal gyrus in dyskinetic patients, a finding that was more evident in patients with early-onset PD. No significant differences were detected in the dyskinetic and nondyskinetic groups when compared with the controls. Our findings suggest that the presence of dyskinesias in patients with PD is characterized by an aberrant neural plasticity that could play a role in the pathophysiology of these motor complications.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1531-8257
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 Movement Disorder Society.
pubmed:issnType
Electronic
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
807-12
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Increased prefrontal volume in PD with levodopa-induced dyskinesias: a voxel-based morphometry study.
pubmed:affiliation
Neuroimaging Research Unit, Institute of Neurological Sciences, National Research Council, Germaneto (CZ), Italy.
pubmed:publicationType
Journal Article