Cited by 374Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsNeurological Disease Mechanisms and Treatments

The Neuropathology of Older Persons with and Without Dementia from Community versus Clinic Cohorts

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Schneider, Julie A., Aggarwal, Neelum T., Barnes, Lisa, Boyle, Patricia, Bennett, David A.·2009·Journal of Alzheimer's Disease

Abstract

Community-based cohorts of older persons may differ neuropathologically from clinic-based cohorts. This study investigated age-related pathologies in persons with and without dementia and included autopsied participants from two community-based cohorts, the Rush Religious Orders Study (n=386) and the Memory and Aging Project (n=195), and one clinic-based cohort, the Clinical Core of the Rush Alzheimer's Disease Center (n=392). Final clinical diagnoses included no cognitive impairment (n=202), mild cognitive impairment (MCI) (n=150), probable Alzheimer's disease (AD) (n=474), possible AD (n=88), and other dementias (n=59). Postmortem diagnoses included pathologic AD, cerebral infarcts, and Lewy body disease. Community-based persons with clinical AD had less severe AD pathology (p<0.001) and had more cerebral infarcts (p<0.001) compared to clinic-based persons. Additionally, community-based persons with MCI had more infarcts compared to clinic-based persons. Overall, there was a higher proportion of Lewy bodies and atypical pathologies in the clinic-based compared to the community-based cohorts (p<0.001). Community-based persons with probable AD show less severe AD pathology and more often have infarcts and mixed pathologies; those with MCI more often have infarcts and mixed pathologies. Overall, clinic-based persons have more Lewy bodies and atypical pathologies. The spectrum of pathologies underlying cognitive impairment in clinic-based cohorts differs from community-based cohorts.

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Authors
Schneider, J. A., Aggarwal, N. T., Barnes, L., Boyle, P., & Bennett, D. A.
Affiliations
Rush University Medical Center (US)
Corresponding author
Schneider, Julie A.
Venue
Journal of Alzheimer's Disease
Published
2009-10-30
Volume
18
Issue
3
Pages
691-701
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W1548995643
Cited by
372
References
34
Citations by year
2026: 27 · 2025: 28 · 2024: 24 · 2023: 16 · 2022: 27 · 2021: 21 · 2020: 19 · 2019: 20 · 2018: 20 · 2017: 24 · 2016: 24 · 2015: 17 · 2014: 18 · 2013: 24 · 2012: 18
FWCI
12.95
Type
journal article
Language
en
Open access
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (R01AG017917, K08 AG00849, P30-AG 10161, R01‐AG17917, R01 AG15819, R01AG015819, P30AG010161, K08AG000849, R01AG022018)
  • National Institute of Neurological Disorders and Stroke
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
neuropathology, dementia
MeSH terms
Aged, Aging, Alzheimer Disease, Cognition Disorders, Community Health Services, Dementia, Humans, Memory Disorders, Neuropsychological Tests, Severity of Illness Index, Tissue Donors, Cohort Studies

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