Cited by 2,668Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Neurofibrillary tangles but not senile plaques parallel duration and severity of Alzheimer's disease

Arriagada, Paulina V., Growdon, John H., Hedley-Whyte, E. Tessa, Hyman, Bradley T.·1992·Neurology

Abstract

We studied the accumulation of neurofibrillary tangles (NFTs) and senile plaques (SPs) in 10 Alzheimer's disease patients who had been examined during life. We counted NFTs and SPs in 13 cytoarchitectural regions representing limbic, primary sensory, and association cortices, and in subcortical neurotransmitter-specific areas. The degree of neuropathologic change was compared with the severity of dementia, as assessed by the Blessed Dementia Scale and duration of illness. We found that (1) the severity of dementia was positively related to the number of NFTs in neocortex, but not to the degree of SP deposition; (2) NFTs accumulate in a consistent pattern reflecting hierarchic vulnerability of individual cytoarchitectural fields; (3) NFTs appeared in the entorhinal cortex, CA1/subiculum field of the hippocampal formation, and the amygdala early in the disease process; and (4) the degree of SP deposition was also related to a hierarchic vulnerability of certain brain areas to accumulate SPs, but the pattern of SP distribution was different from that of NFT.

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Crossref · 10.1212/wnl.42.3.631

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Authors
Arriagada, P. V., Growdon, J. H., Hedley-Whyte, E. T., & Hyman, B. T.
Affiliations
Harvard University (US)
Venue
Neurology
Published
1992-03
Volume
42
Issue
3
Pages
631-631
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2053116497
Cited by
2,668
References
0
Citations by year
2026: 54 · 2025: 89 · 2024: 81 · 2023: 101 · 2022: 89 · 2021: 141 · 2020: 135 · 2019: 131 · 2018: 96 · 2017: 112 · 2016: 132 · 2015: 101 · 2014: 106 · 2013: 93 · 2012: 97
FWCI
28.79
Type
journal article
Language
en
Open access
closed
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (AG-08487, P50 AG05134, P50AG005134)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, neurofibrillary tangles, amyloid plaques, dementia severity, disease duration, neuropathology, entorhinal cortex, hippocampal formation, amygdala, regional vulnerability, cytoarchitecture
MeSH terms
Aged, Alzheimer Disease, Amygdala, Brain, Female, Hippocampus, Humans, Male, Middle Aged, Neurofibrillary Tangles

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