Cited by 88Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsParkinson's Disease Mechanisms and Treatments

Alzheimer's disease neuropathologic change, Lewy body disease, and vascular brain injury in clinic- and community-based samples

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Brenowitz, Willa D., Keene, C. Dirk, Hawes, Stephen E., Hubbard, Rebecca A., Longstreth, W.T., Woltjer, Randy L., Crane, Paul K., Larson, Eric B. +1 more·2017·Neurobiology of Aging

Abstract

We examined the relationships between Alzheimer's disease neuropathologic change (ADNC), Lewy body disease (LBD), and vascular brain injury (VBI) in 2 large autopsy samples. Because findings may differ between study populations, data came from U.S. Alzheimer's Disease Centers contributing to the National Alzheimer's Coordinating Center (n = 2742) and from the population-based Adult Changes in Thought study (n = 499). Regardless of study population, over 50% of participants with ADNC had co-occurring LBD or VBI; the majority of whom had a clinical AD dementia diagnosis prior to death. Overlap of pathologies was similar between studies, especially after standardizing to the distribution of age and dementia status in the Adult Changes in Thought population. LBD, but not VBI, was positively associated with ADNC in both studies. Interestingly, cortical LBD was more common in those with intermediate ADNC compared to low or high ADNC, especially in the National Alzheimer's Coordinating Center (p < 0.001). High prevalence of co-occurring neuropathologies among older adults with dementia has implications for accurate diagnosis of dementia etiologies and development of disease-modifying strategies.

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Crossref · 10.1016/j.neurobiolaging.2017.01.017

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  • A study examined difference between NACC and ACT and found that, while there was more vascular pathology in ACT participants, they were also older.

    “A study examined the difference between NACC and ACT and found that, while there was more vascular pathology in ACT participants, they were also older.”

    From Concordance of Clinical Alzheimer Diagnosis and Neuropathological Features at Autopsy (2020) · cites this paper as [18]

    The Results (§3.1; page not available in our copy) report that autopsied ACT participants with dementia were older at death and had more vascular brain injury than their NACC counterparts. The claim omits that this finding concerns participants with dementia; the paper says participants without dementia were relatively similar in demographic and pathologic characteristics. (LLM, conf=0.88)

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  • Clinic-based participants differ from community-based studies, for example, the amount, type, and distribution of neuropathologic changes differ by the source of a participant.

    “It is widely recognized that clinic-based participants differ from community-based studies, for example, the amount, type, and distribution of neuropathologic changes differ by the source of a participant [206,207].”
  • Over 50% of participants with ADNC had cooccurring LBD pathology or vascular brain injury.

    “Another study found that over 50% of participants with ADNC had cooccurring LBD pathology or vascular brain injury (18).”
  • Mixed pathologies were common in both populations, and once age distribution was accounted for, distribution of mixed pathologies among NACC and ACT participants was similar, with AD+LBD and AD+Vascular Brain Injury being the most common mixed pathologies.

    “Mixed pathologies were common in both populations, and once the age distribution was accounted for the distribution of mixed pathologies among NACC participants and ACT participants was similar, with ADþ LBD and ADþVascular Brain Injury being the most common mixed pathologies in those populations (18).”
  • Cognitive trajectories were similar between participants with mixed pathologies and participants who only had ADNC; impact of co-occurring pathologies may have been due to severity of AD more than mixed pathologies.

    “Other studies found that cognitive trajectories were similar between participants with mixed pathologies and participants who only had ADNC; though, the impact of co-occurring pathologies may have been due to the severity of AD more than the mixed pathologies (18,19).”

    From Concordance of Clinical Alzheimer Diagnosis and Neuropathological Features at Autopsy (2020) · cites this paper as [18]

    The Results (§3.3; page unavailable) compare clinical characteristics of participants with ADNC only and mixed ADNC, but do not report cognitive trajectories. The Discussion (§4; page unavailable) addresses co-occurring pathologies and ADNC levels, not whether AD severity explains their cognitive impact. Searches for cognitive trajectories and AD severity found no passage establishing either part of the claim. (LLM, conf=0.74)

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  1. Zhou XH Castelluccio P Hui SL Rodenberg CA Comparing two prevalence rates in a two-phase design study Stat. Med 1999 18 1171 1182 10363338

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Authors
Brenowitz, W. D., Keene, C. D., Hawes, S. E., Hubbard, R. A., Longstreth, W. T., Woltjer, R. L., Crane, P. K., Larson, E. B., & Kukull, W. A.
Affiliations
  • University of Washington (US)
  • University of Pennsylvania (US)
  • Oregon Health & Science University (US)
  • Kaiser Permanente Washington Health Research Institute (US)
Corresponding author
Brenowitz, Willa D.
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
2017-05
Volume
53
Pages
83-92
ISSN
0197-4580 (ISSN-L)
OpenAlex
W2580671663
Cited by
88
References
63
Citations by year
2026: 8 · 2025: 12 · 2024: 9 · 2023: 5 · 2022: 10 · 2021: 6 · 2020: 13 · 2019: 10 · 2018: 12 · 2017: 1 · 2014: 1
FWCI
8.09
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Oregon Health and Science University
  • National Institute on Aging (P30AG010129, P30AG010133, R01AG024059, P30AG028383, P30AG012300, P50AG005133, U01AG006781, U01AG016976, P50AG005131, P50AG005138, P50AG016570, P30AG010124, P50AG016573, P50AG047366, P30AG008017, P30AG010161, P30AG008051, P50AG008702, P50AG033514, P30AG035982, P50AG005681, P50AG005142, P50AG047270, P30AG019610, P50AG005146, P30AG013846, P50AG005136, P50AG005134, P30AG013854, P50AG025688, P50AG047266, P50AG023501, P50AG016574)
  • National Center for Research Resources (M01RR000334, UL1RR024140)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
Lewy body disease, vascular brain injury, dementia etiology, cortical Lewy bodies, Adult Changes in Thought study, autopsy specimens, dementia diagnosis
MeSH terms
Aged, Aged, 80 and over, Aging, Alzheimer Disease, Autopsy, Brain, Female, Humans, Male, Comorbidity, Cerebrovascular Trauma, Lewy Body Disease

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