Cited by 83Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Distribution, progression and chemical composition of cortical amyloid-β deposits in aged rhesus monkeys: similarities to the human

Sani, Sepehr, Traul, David, Klink, Annelies, Niaraki, Nayson, Gonzalo-Ruiz, Alicia, Wu, Chuang-Kuo, Geula, Changiz·2003·Acta Neuropathologica

Abstract

A comprehensive investigation of the incidence, distribution, progression and chemical composition of Abeta deposits in the brains of two young (5 years) and seven aged (25-30 years) rhesus monkeys was conducted to determine the similarity of this phenomenon to that in the human. The brains of the young rhesus were devoid of Abeta deposits. In contrast, Abeta deposits were observed within the cerebral cortex of all aged animals. In animals with mild Abeta burden, deposits were observed primarily in association cortical zones. In animals with moderate Abeta burden, many paralimbic cortical zones also contained Abeta deposits. Finally, in an animal with a heavy burden of Abeta, core limbic cortical zones were also involved. The primary sensory and motor cortices were relatively free of Abeta deposits. A higher proportion of plaques contained Abeta40 as compared with Abeta42. Abeta deposits contained a number of other constituents. Cholinesterases were present in nearly 50% of plaques and displayed the exact same biochemical characteristics as those in the human. Nearly 20% of Abeta deposits also contained apolipoprotein E and a smaller proportion contained heparin sulfate proteoglycans and alpha1-anti-chymotrypsin. The latter three chemicals were present in many compact plaques. These results indicate that the distribution, progression and chemical composition of plaques in the aged rhesus monkey display many similarities to those observed in the aged human and Alzheimer's disease. Therefore, despite some differences from the human, the aged rhesus may be a good model for studies of the pathological effects of Abeta in the primate brain.

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Crossref · 10.1007/s00401-002-0626-5

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  • The majority of plaques in rhesus monkeys are diffuse; only approximately 20% contained fibrillar Aβ.

    “The majority of plaques are diffuse; only approximately 20% contained fibrillar Aβ [134, 146].”

    From Alzheimer's disease: experimental models and reality (2017) · cites this paper as [134]

  • Plaques are typically found in rhesus monkeys older than 25 years and have a similar distribution to humans, with more present in the cortex than the hippocampus.

    “Plaques are typically found in rhesus monkeys that are older than 25 years and they have a similar distribution that that observed in humans; more being present in the cortex than the hippocampus [54, 56, 96, 134, 146, 150, 164, 165].”

    From Alzheimer's disease: experimental models and reality (2017) · cites this paper as [134]

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Authors
Sani, S., Traul, D., Klink, A., Niaraki, N., Gonzalo-Ruiz, A., Wu, C.-K., & Geula, C.
Affiliations
Beth Israel Deaconess Medical Center (US)
Corresponding author
Geula, Changiz
Venue
Acta Neuropathologica
Published
2003-02
Volume
105
Issue
2
Pages
145-156
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W1483033914
Cited by
83
References
46
Citations by year
2026: 3 · 2025: 7 · 2024: 8 · 2023: 2 · 2022: 8 · 2021: 5 · 2020: 2 · 2019: 2 · 2018: 2 · 2016: 4 · 2015: 1 · 2014: 5 · 2013: 1 · 2012: 5
FWCI
1.34
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
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
amyloid-beta deposition, rhesus monkeys, aging, Alzheimer's disease model, cholinesterase, apolipoprotein E, heparan sulfate proteoglycans, cerebral cortex, primate brain
MeSH terms
Age Factors, Aging, Animals, Apolipoproteins E, Brain Chemistry, Brain Diseases, Cholinesterases, Chymotrypsin, Disease Models, Animal, Heparin, Humans, Immunohistochemistry, Proteoglycans, Amyloid beta-Peptides, Plaque, Amyloid

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