Cited by 186Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Focal demyelination in Alzheimer’s disease and transgenic mouse models

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Mitew, Stanislaw, Kirkcaldie, Matthew T. K., Halliday, Glenda M., Shepherd, Claire E., Vickers, James C., Dickson, Tracey C.·2010·Acta Neuropathologica

Abstract

We have investigated alterations in myelin associated with Abeta plaques, a major pathological hallmark of Alzheimer's disease (AD), in human tissue and relevant transgenic mice models. Using quantitative morphological techniques, we determined that fibrillar Abeta pathology in the grey matter of the neocortex was associated with focal demyelination in human presenilin-1 familial, sporadic and preclinical AD cases, as well as in two mouse transgenic models of AD, compared with age-matched control tissue. This demyelination was most pronounced at the core of Abeta plaques. Furthermore, we found a focal loss of oligodendrocytes in sporadic and preclinical AD cases associated with Abeta plaque cores. In human and transgenic mice alike, plaque-free neocortical regions showed no significant demyelination or oligodendrocyte loss compared with controls. Dystrophic neurites associated with the plaques were also demyelinated. We suggest that such plaque-associated focal demyelination of the cortical grey matter might impair cortical processing, and may also be associated with aberrant axonal sprouting that underlies dystrophic neurite formation.

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Crossref · 10.1007/s00401-010-0657-2

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Authors
Mitew, S., Kirkcaldie, M. T. K., Halliday, G. M., Shepherd, C. E., Vickers, J. C., & Dickson, T. C.
Affiliations
  • University of Tasmania (AU)
  • UNSW Sydney (AU)
Corresponding author
Dickson, Tracey C.
Venue
Acta Neuropathologica
Published
2010-03-03
Volume
119
Issue
5
Pages
567-577
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W2011554023
Cited by
186
References
62
Citations by year
2026: 9 · 2025: 13 · 2024: 13 · 2023: 23 · 2022: 19 · 2021: 19 · 2020: 12 · 2019: 7 · 2018: 9 · 2017: 8 · 2016: 10 · 2015: 9 · 2014: 5 · 2013: 13 · 2012: 6
FWCI
6.28
Type
journal article
Language
en
Open access
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
  • eCite Digital Repository (University of Tasmania) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
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, focal demyelination, amyloid plaques, oligodendrocyte loss, neocortex, transgenic mouse model, presenilin 1, dystrophic neurites, axonal sprouting, gray matter pathology
MeSH terms
Adult, Aged, Aged, 80 and over, Alzheimer Disease, Analysis of Variance, Animals, Demyelinating Diseases, Disease Models, Animal, Female, Humans, Immunohistochemistry, Male, Mice, Transgenic, Middle Aged, Myelin Sheath, Nerve Degeneration, Nerve Fibers, Myelinated, Neurons, Oligodendroglia, Amyloid beta-Peptides, Neocortex, Mice, Presenilin-1

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