Cited by 209Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Relationships between Regional Neuronal Loss and Neurofibrillary Changes in the Hippocampal Formation and Duration and Severity of Alzheimer Disease

BOBINSKI, MACIEJ, WEGIEL, JERZY, TARNAWSKI, MICHAL, BOBINSKI, MARGARET, REISBERG, BARRY, DE LEON, MONY J., MILLER, DOUGLAS C., WISNIEWSKI, HENRYK M.·1997·Journal of Neuropathology and Experimental Neurology

Abstract

The total numbers of neurons with and without neurofibrillary changes in the hippocampal subdivisions were estimated in 16 subjects with Alzheimer disease (AD) and in 5 normal elderly controls. On the basis of clinical symptoms, AD patients were subdivided into relatively less (AD-1. Functional Assessment Staging [FAST] stages 7a to 7c) and more severely affected (AD-2, FAST stages 7e to 7f) patient groups. In the AD-1 group relative to controls, the total number of neurons was reduced only in CA1 and in the subiculum. In the AD-2 group, neuronal losses were found in all sectors of the cornu Ammonis and in the subiculum and ranged from 53% in CA3 to 86% in CA1. The dentate gyrus was the only hippocampal subdivision without significant neuronal loss. Within the combined AD patient groups, significant correlations were noted between both clinical stage and duration of AD and both the total number of neurons and the percentage of neurons with neurofibrillary changes in CA1, CA4, and the subiculum. Regression analyses predicted neuronal losses over the maximal observed duration of 22 years of 87% in CA1, 63% in CA4, and 77% in the subiculum. Our data suggest that over the course of AD, continuous neurofibrillary tangle formation and continuous neuronal loss occur in the hippocampal subdivisions. The rate of neuronal loss appears to be similar for CA1, CA4, and the subiculum.

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Authors
BOBINSKI, M., WEGIEL, J., TARNAWSKI, M., BOBINSKI, M., REISBERG, B., DE LEON, M. J., MILLER, D. C., & WISNIEWSKI, H. M.
Affiliations
NYU Langone Health (US)
Venue
Journal of Neuropathology and Experimental Neurology
Published
1997-04
Volume
56
Issue
4
Pages
414-420
ISSN
0022-3069 (ISSN-L)
OpenAlex
W2004027050
Cited by
208
References
0
Citations by year
2026: 3 · 2025: 3 · 2024: 4 · 2023: 6 · 2022: 3 · 2021: 10 · 2020: 5 · 2019: 7 · 2018: 6 · 2017: 4 · 2016: 8 · 2015: 3 · 2014: 10 · 2013: 9 · 2012: 8
FWCI
5.10
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neuropathology & Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5p01ag004220-12)
  • National Institute on Aging (AG04220, AG03051, R01AG003051, P30AG008051, AG 08051)
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, neuronal loss, neurofibrillary tangles, hippocampal formation, hippocampal subfields, CA1, CA4, subiculum, cornu ammonis, dentate gyrus, disease duration, disease severity, clinical staging
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Female, Hippocampus, Humans, Male, Neurofibrils, Neurons, Severity of Illness Index, Time Factors, Cell Death

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