| Mild cognitive impairment associated with underlying Alzheimer's disease versus Lewy body disease. | |
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MedLine Citation:
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PMID: 22166451 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The objective of this paper is to compare and contrast the clinical, neuropsychological, and neuroimaging findings in patients with mild cognitive impairment (MCI) associated with underlying Alzheimer's disease (AD) versus Lewy body disease (LBD) pathology. MCI refers to a clinical syndrome with impairment in one or more cognitive domains, with essentially normal performance of activities of daily living. Patients with the amnesic subtype of MCI often develop the dementia syndrome and neuroimaging findings characteristic of AD [e.g., hippocampal atrophy on magnetic resonance imaging (MRI), temporoparietal and posterior cingulate hypometabolism on fluorodeoxyglucose positron emission tomography (FDG-PET), positive uptake on amyloid PET, normal striatonigral uptake on dopamine transporter scanning (DAT), etc.]. In contrast, the MCI syndrome associated with LBD pathology regardless of the coexisting presence or absence of parkinsonism is usually characterized by impairment in the executive and/or visuospatial domains, and the cognitive features are often preceded by REM sleep behavior disorder by many years. There is minimal hippocampal atrophy on MRI, minimal if any cortical uptake on amyloid-PET, and one would predict that hypometabolism would be maximal in the occipital cortex on FDG-PET and uptake would be decreased on DAT. The early data suggests that differentiating underlying AD vs LBD in the MCI phase will be feasible. |
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Authors:
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Bradley F Boeve |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Parkinsonism & related disorders Volume: 18 Suppl 1 ISSN: 1873-5126 ISO Abbreviation: Parkinsonism Relat. Disord. Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2011-12-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9513583 Medline TA: Parkinsonism Relat Disord Country: England |
Other Details:
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Languages: eng Pagination: S41-4 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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Divisions of Behavioral Neurology and Movement Disorders, Department of Neurology, and Center for Sleep Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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