Cited by 292Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration Mechanisms

Clinicopathologic Correlations in a Large Alzheimer Disease Center Autopsy Cohort: Neuritic Plaques and Neurofibrillary Tangles "Do Count" When Staging Disease Severity

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Nelson, Peter T., Jicha, Gregory A., Schmitt, Frederick A., Liu, Huaichen, Davis, Daron G., Mendiondo, Marta S., Abner, Erin L., Markesbery, William R.·2007·Journal of Neuropathology and Experimental Neurology

Abstract

There is uncertainty regarding the association of cognitive decline in Alzheimer disease (AD) with classic histopathologic features- neurofibrillary tangles (NFTs) and "neuritic" amyloid plaques (NPs). This uncertainty fuels doubts about the diagnostic importance of NFTs and NPs and leads to confusion regarding hypotheses of AD pathogenesis. Three hundred ninety subjects who underwent longitudinal premortem clinical workup and postmortem quantitative neuropathologic assessment served as the group to address this issue. Subjects with concomitant brain disease(s) were analyzed independently to more accurately assess the contribution of distinct pathologies to cognitive decline. More than 60% of patients of all age groups had important non-AD brain pathologies. However, subjects without superimposed brain diseases showed strong correlations between AD-type pathology counts (NFTs > NPs) and premortem Mini-Mental State Examination scores. The observed correlation was stronger in isocortex than in allocortex and was maintained across age groups including patients older than 90 years. A theoretical model is proposed in which our results are interpreted to support the "amyloid cascade hypothesis" of AD pathogenesis. Our data show that there are many important contributory causes to cognitive decline in older persons. However, NFTs and NPs should not be dismissed as irrelevant in AD based on clinicopathologic correlation.

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  • AD neuropathologic change is documented in approximately 80% of cases with a traditional clinical diagnosis of "AD dementia".

    “AD neuropathologic change is documented in approximately 80% of cases with a traditional clinical diagnosis of “AD dementia” (see Fig. 5 for an example of clinical misdiagnosis of “AD dementia”) [50–52,162,185,209–211].”

    From NIA‐AA Research Framework: Toward a biological definition of Alzheimer's disease (2018) · cites this paper as [209]

    The Discussion reports a relationship between AD pathology and premortem cognitive decline, and the ‘Clinicopathologic Correlation in a Theoretical Context’ section reports how often dementia and abundant plaques and tangles co-occur in a selected group. Neither passage gives the proportion of patients with a traditional clinical diagnosis of AD dementia who had AD neuropathologic change at autopsy. Searches for clinical-diagnosis accuracy and an 80% figure found no such result in our copy; page numbers were not available. (LLM, conf=0.76)

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  • In humans, tau aggregation and the presence of NFTs correlate more closely with symptom severity and neuron loss than do Aβ lesions.

    “Overall, in humans, tau aggregation and the presence of NFTs correlate more closely with symptom severity and neuron loss than do Aβ lesions49.”

    From Tau-targeting therapies for Alzheimer disease (2018) · cites this paper as [49]

  • AD pathology (mainly neurofibrillary tangles and neuritic plaques) is the main morphological substrate of clinical dementia.

    “These data add further evidence for AD pathology (mainly neurofibrillary tangles and neuritic plaques) being the main morphological substrate of clinical dementia [51],[79],[80].”
  • Even in extreme old age, the presence of many neocortical NFTs correlates with antemortem cognitive decline.

    “Even in extreme old age, the presence of many neocortical NFTs correlates with antemortem cognitive decline (105, 188-191).”
  • Together, these and perhaps other uncharacterized changes may weaken the apparent association between AD pathologic diagnosis and cognitive status.

    “Together, these and perhaps other uncharacterized changes may weaken the apparent association between AD pathologic diagnosis and cognitive status (189, 195, 198).”

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1 retracted

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Research works printed but not linked: 1

  1. Mendiondo MS, Ashford JW, Kryscio RJ, et al. Modelling Mini-Mental State Examination changes in Alzheimer's disease. Stat Med 2000;19: 1607Y16

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Authors
Nelson, P. T., Jicha, G. A., Schmitt, F. A., Liu, H., Davis, D. G., Mendiondo, M. S., Abner, E. L., & Markesbery, W. R.
Affiliations
University of Kentucky (US)
Corresponding author
Nelson, Peter T.
Venue
Journal of Neuropathology and Experimental Neurology
Published
2007-12
Volume
66
Issue
12
Pages
1136-1146
ISSN
0022-3069 (ISSN-L)
OpenAlex
W2038962904
Cited by
292
References
87
Citations by year
2026: 11 · 2025: 10 · 2024: 17 · 2023: 16 · 2022: 19 · 2021: 14 · 2020: 11 · 2019: 20 · 2018: 15 · 2017: 17 · 2016: 22 · 2015: 14 · 2014: 14 · 2013: 21 · 2012: 16
FWCI
7.47
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuropathology & Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (P30AG028383)
  • National Institute of Neurological Disorders and Stroke (R01NS061933, K08NS050110)
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 › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, clinicopathological correlation, neurofibrillary tangles, neuritic plaques, cognitive decline, amyloid hypothesis, Mini-Mental State Examination, neocortex, allocortex, older adults
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Brain, Female, Humans, Male, Mental Status Schedule, Neurologic Examination, Neuropsychological Tests, Postmortem Changes, Severity of Illness Index, Statistics as Topic, Cohort Studies, Amyloid beta-Peptides, Neurofibrillary Tangles, Disease Progression, Neuropil Threads, Plaque, Amyloid

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