Cited by 710Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Evolution of the neuropathology of Alzheimer's disease

Braak, H., Braak, E.·1996·Acta Neurologica Scandinavica

Abstract

Our knowledge of the etiology and pathogenesis of Alzheimer's disease is limited. The most conspicuous changes seen in the brain are deposits of insoluble proteins in both extracellular and intraneuronal locations. The extracellular deposits consist primarily of a specific A4 amyloid protein. The significance of these deposits remains to be determined, as they are often found in the cerebral cortex of non-demented elderly persons. More telling is the gradual accumulation of insoluble fibrous material within some neurons that consists mainly of abnormally phosphorylated tau protein. Six stages of increasingly severe cortical destruction can be distinguished. Stages I and II are characterized by neurofibrillary changes that are largely confined to the transentorhinal region, whereas stages III and IV are marked by severe involvement of both the entorhinal and transentorhinal regions. Isocortical destruction occurs during stages V and VI. This progression in cortical pathology correlates with the gradual worsening of clinical symptoms.

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Registry

Crossref · 10.1111/j.1600-0404.1996.tb05866.x

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Authors
Braak, H., & Braak, E.
Affiliations
Goethe University Frankfurt (DE)
Corresponding author
Braak, H.
Venue
Acta Neurologica Scandinavica
Publisher
Wiley
Published
1996-04
Volume
94
Issue
S165
Pages
3-12
ISSN
0001-6314 (ISSN-L)
OpenAlex
W1971744915
Cited by
710
References
53
Citations by year
2026: 13 · 2025: 24 · 2024: 27 · 2023: 22 · 2022: 29 · 2021: 22 · 2020: 29 · 2019: 27 · 2018: 29 · 2017: 25 · 2016: 31 · 2015: 36 · 2014: 36 · 2013: 31 · 2012: 36
FWCI
2.02
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Neurologica Scandinavica (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
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, neuropathology, amyloid plaques, tau protein, neurofibrillary tangles, entorhinal cortex, cortical atrophy, disease stage, etiopathogenesis
MeSH terms
Alzheimer Disease, Hippocampus, Humans, Neurofibrillary Tangles, Entorhinal Cortex

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