Cited by 335Parkinson's Disease Mechanisms and TreatmentsDementia and Cognitive Impairment ResearchAlzheimer's disease research and treatments

Differences in neuropathologic characteristics across the Lewy body dementia spectrum

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Ballard, C., Ziabreva, I., Perry, R., Larsen, J. P., O'Brien, J., McKeith, I., Perry, E., Aarsland, D.·2006·Neurology

Abstract

BACKGROUND: The objective of this comparative neuropathologic study was to determine the extent to which dementia with Lewy bodies (DLB) and Parkinson disease dementia (PDD) are distinct entities or part of a continuum with respect to the duration of parkinsonism. METHODS: We evaluated the relationship between cortical alpha-synuclein pathology, plaques (Consortium to Establish a Registry for Alzheimer's Disease [CERAD]), tangles (Braak staging), and cholinergic deficits (choline acetyltransferase in temporal cortex) in 57 prospectively assessed patients (29 DLB, 28 PDD), confirmed at autopsy. The PDD group was divided according to the median duration of parkinsonism prior to dementia. RESULTS: There was an association between longer duration of parkinsonism prior to dementia and less severe cortical alpha-synuclein pathology (chi(2) 10.4, df 2, p = 0.006) and lower CERAD plaque scores (chi(2) 26.6, df 9, p = 0.002), but not Braak staging. These findings were confirmed in a further correlation analysis, which also identified an unexpected correlation between more pronounced cortical cholinergic deficits and longer duration of parkinsonism prior to dementia (R = -0.37, p = 0.04). CONCLUSION: While there is a clear relationship between the duration of Parkinson disease prior to the onset of dementia and key neuropathologic and neurochemical characteristics, there is a gradation of these differences across the dementia with Lewy bodies/Parkinson disease dementia spectrum and the findings do not support an arbitrary cut-off between the two disorders.

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Crossref · 10.1212/01.wnl.0000249130.63615.cc

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Authors
Ballard, C., Ziabreva, I., Perry, R., Larsen, J. P., O'Brien, J., McKeith, I., Perry, E., & Aarsland, D.
Affiliations
  • King's College London (GB)
  • From the Wolfson Centre for Age-Related Diseases (C.B.), Wolfson Building, Guy's Campus, King's College London, UK; Institute of Ageing and Health (I.Z., R.P., J.O., I.M., E.P.), Newcastle General Hospital, Newcastle upon Tyne, UK; and Norwegian Center for Movement Disorders (J.P.L., D.A.), Stavanger University Hospital, Stavanger, Norway.
Venue
Neurology
Published
2006-12-12
Volume
67
Issue
11
Pages
1931-1934
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2107172544
Cited by
335
References
28
Citations by year
2026: 4 · 2025: 10 · 2024: 9 · 2023: 9 · 2022: 12 · 2021: 11 · 2020: 16 · 2019: 23 · 2018: 23 · 2017: 15 · 2016: 16 · 2015: 13 · 2014: 21 · 2013: 25 · 2012: 28
FWCI
12.73
Type
journal article
Language
en
Open access
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • Newcastle University ePrints (Newcastle Univesity)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
dementia with Lewy bodies, Parkinson's disease dementia, alpha-synuclein pathology, Braak staging, cholinergic deficit, choline acetyltransferase, differential diagnosis, neuropathology
MeSH terms
Aged, Aged, 80 and over, Choline O-Acetyltransferase, Female, Humans, Male, Parkinson Disease, Prospective Studies, Temporal Lobe, Time Factors, Neurofibrillary Tangles, Lewy Body Disease, alpha-Synuclein, Plaque, Amyloid

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