ArticleNeurology2023
Effects of Cerebrovascular and Lewy Body Pathology on Parkinsonian Signs in Community-Dwelling Older Adults.
Article in Neurology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 9 citations in OpenAlex.
- Cerebral amyloid angiopathy, brain iron concentrations, and cognitive decline in older people.Acta neuropathologica · 2026Article
- Hippocampal GFAP in aging: Associations with AD and LATE-NC pathologies and cognitive decline in older adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Dual decline in gait and cognition as a high-risk clinical phenotype: differential associations with cerebral amyloid-Frontiers in aging neuroscience · 2026Article
- Neuropathology of Lewy body dementia: Lewy-related pathology, α-synuclein oligomers, and comorbid pathologies.Molecular neurodegeneration · 2025Review
- APOE4 promotes nigral tau hyperphosphorylation through cholesterol in atherosclerosis.Cell death discovery · 2025Article
- Cognitive decline in community-dwelling older persons with primary age-related tauopathy: role of anatomical location of tangles and other co-existing brain pathologies.Acta neuropathologica · 2025Article
- Concomitant Pathologies and Their Impact on Parkinson Disease: A Narrative Overview of Current Evidence.International journal of molecular sciences · 2025Review
- New criteria to predict LATE-NC in the clinical setting: Probable/Possible LATE and LANS.Journal of neuropathology and experimental neurology · 2025Review
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8 authors at 1 institution in 1 country.
Funding
Abstract
BACKGROUND AND
objectivesThe roles of Lewy body (LB) and separately of cerebrovascular disease (CVD) pathologies in the severity of parkinsonian signs are well recognized in old age. We investigated whether the 2 pathologies act synergistically to further potentiate the severity of parkinsonism beyond their separate effects.
methodsWe used postmortem data of decedents from 3 longitudinal community-based studies of aging who underwent annual clinical evaluation to assess parkinsonian signs using 26 items of the motor portion of a modified Unified Parkinson Disease Rating Scale. A summary score was developed from each item score to construct a global parkinsonian score, with a higher score indicating more severe parkinsonism. A detailed neuropathologic evaluation was performed to identify LB, Alzheimer disease pathology, nigral neuronal loss, atherosclerosis, macroscopic infarcts, and other CVD pathologies (arteriolosclerosis, cerebral amyloid angiopathy, and microscopic infarcts). A series of regression models with terms for LB, CVD pathology, and the interaction of LB with CVD pathologies was fit for global parkinsonism proximate to death and for individual parkinsonian signs scores including, parkinsonian gait, rigidity, tremor, and bradykinesia.
resultsIn 1,753 participants (mean age at death = 89 years; 68% women), LB was observed in 26% of participants, and CVD pathologies were present in more than two-thirds of participants. LB and 3 CVD pathologies (atherosclerosis, arteriolosclerosis, and macroscopic infarcts) were each independently associated with the severity of global parkinsonism proximate to death (LB: β = 0.318, SE = 0.08, DISCUSSION: These findings suggest that atherosclerosis and macroscopic infarcts interact with LB pathology to increase the severity of parkinsonism beyond their additive effects in older persons.
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