Abstract:
:Prospective studies conducted during the last decade have shown that the majority of patients with Parkinson's disease (PD) develop dementia. In addition, using a variety of definitions and methods, more recent research suggests that approximately a quarter of PD patients without dementia have mild cognitive impairment (PD-MCI). Furthermore, several studies have shown that approximately 20% have MCI even at time of diagnosis of PD. The typical cognitive deficits include visuospatial, attentional, and executive deficits, but memory deficits have also been shown. The etiology of PD-MCI is not known, but it is likely that mechanisms known to contribute to dementia in PD (ie, limbic and cortical Lewy bodies, amyloid plaques, and cholinergic deficits) play a role, in addition to dysfunction of dopaminergic frontostriatal circuits. PD-MCI predicts a shorter time to dementia, and preliminary evidence suggests that this is particularly true for posterior cognitive deficits. There are currently no systematic clinical trials in PD-MCI.
journal_name
Curr Neurol Neurosci Repjournal_title
Current neurology and neuroscience reportsauthors
Aarsland D,Brønnick K,Fladby Tdoi
10.1007/s11910-011-0203-1subject
Has Abstractpub_date
2011-08-01 00:00:00pages
371-8issue
4eissn
1528-4042issn
1534-6293journal_volume
11pub_type
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journal_title:Current neurology and neuroscience reports
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更新日期:2014-08-01 00:00:00
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更新日期:2002-05-01 00:00:00