Cited by 49Alzheimer's disease research and treatmentsIntracerebral and Subarachnoid Hemorrhage ResearchDementia and Cognitive Impairment Research

Relationship of neurofibrillary pathology to cerebral amyloid angiopathy in Alzheimer's disease

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Williams, S., Chalmers, K., Wilcock, G. K., Love, S.·2005·Neuropathology and Applied Neurobiology

Abstract

Over 90% of patients with Alzheimer's disease (AD) develop cerebral amyloid angiopathy (CAA). Severe dyshoric CAA, in which amyloid extends into the surrounding brain parenchyma, may be associated with adjacent clustering of tau‐immunopositive neurites but the relationship of CAA to neurofibrillary pathology has not been systematically investigated. In the present study this relationship was examined in sections of frontal, temporal and parietal cortex from 25 AD patients with moderate to severe CAA and 26 with mild or absent CAA. We measured immunolabelling of abnormally phosphorylated tau adjacent to Aβ‐laden and non‐Aβ‐laden arteries and arterioles, and in cortex away from arteries and arterioles. We also analysed the possible influence of APOE genotype on these measurements. There were no significant differences between the lobes in measurements of tau labelling, either around blood vessels or elsewhere in the cortex. However, tau labelling around Aβ‐laden arteries and arterioles significantly exceeded that around non‐Aβ‐laden blood vessels (P < 0.001) and this, in turn was greater than the labelling of cortex away from blood vessels (P < 0.001). There was no association between APOE ɛ4 and the immunolabelling density for tau, whether around amyloid‐ or non‐amyloid‐laden arteries and arterioles, or in the cerebral cortex away from these. We propose that both CAA and peri‐vascular accumulation of hyperphosphorylated tau may be a consequence of elevated levels of soluble Aβ around cortical arteries and arterioles.

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Crossref · 10.1111/j.1365-2990.2005.00663.x

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Authors
Williams, S., Chalmers, K., Wilcock, G. K., & Love, S.
Affiliations
University of Bristol (GB)
Corresponding author
Love, S.
Venue
Neuropathology and Applied Neurobiology
Publisher
Wiley
Published
2005-05-25
Volume
31
Issue
4
Pages
414-421
ISSN
  • 0305-1846 (ISSN-L)
  • 1365-2990
OpenAlex
W2142812465
Cited by
49
References
26
Citations by year
2026: 1 · 2025: 3 · 2024: 4 · 2022: 2 · 2021: 4 · 2020: 7 · 2019: 2 · 2018: 1 · 2017: 5 · 2016: 2 · 2015: 5 · 2014: 1 · 2012: 1
FWCI
1.40
Type
journal article
Language
en
Open access
Locations
  • Neuropathology and Applied Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Explore Bristol Research (publishedVersion)
  • UWE Research Repository (UWE Bristol) (submittedVersion, cc-by)
Funders
Chinese Academy of Agricultural Sciences
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Intracerebral and Subarachnoid Hemorrhage Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
Alzheimer's disease, cerebral amyloid angiopathy, neurofibrillary pathology, hyperphosphorylated tau, amyloid-beta, APOE ε4
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Apolipoproteins E, Arteries, Arterioles, Brain, Female, Genotype, Humans, Image Processing, Computer-Assisted, Immunohistochemistry, Male, Middle Aged, Phosphorylation, Amyloid beta-Peptides, Cerebral Amyloid Angiopathy, Neurofibrillary Tangles, tau Proteins

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