Cited by 135Dementia and Cognitive Impairment ResearchAging and Gerontology ResearchNeurological Disease Mechanisms and Treatments

A review of the structural alterations in the cerebral hemispheres of the aging rhesus monkey

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Peters, Alan, Kemper, Thomas·2012·Neurobiology of Aging

Abstract

Like humans, rhesus monkeys show cognitive decline and this review considers what structural age-related changes underlie this decline. Some structural measures do not alter significantly with age. These include brain weight, overall cortical thickness; numbers of cortical neurons; and numbers of astrocytes and microglial cells. Other structural measures change with age, but the change does not correlate with cognitive decline. These changes include nerve fiber loss from some fiber tracts, degeneration, and regeneration of myelin sheaths, and increase in the frequency of oligodendrocytes. Among the structural measures that increase in frequency with age and also correlate with cognitive decline are the increased frequency of degenerating myelin sheaths and a loss of nerve fibers from some fiber tracts; and the loss of synapses and dendritic spines from upper layers of prefrontal cortex. Consequently, the existing data suggest that cognitive decline correlates with changes in myelinated nerve fibers and with disconnections between and within cortical areas, as reflected by the age-related loss of synapses and of dendritic spines from some cortical areas.

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Crossref · 10.1016/j.neurobiolaging.2011.11.015

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  • Our data are consistent with the observations that abnormally short myelin internodes accumulate with age in mouse spinal cord white matter and that paranode frequency increases with age in the rhesus monkey brain.

    “Our data are consistent with the observations that abnormally short myelin internodes accumulate with age in mouse spinal cord white matter (Lasiene et al., 2009) and that paranode frequency increases with age in the rhesus monkey brain (reviewed by Peters and Kemper, 2012).”

    From Oligodendrocyte Dynamics in the Healthy Adult CNS: Evidence for Myelin Remodeling (2013) · cites this paper as Peters and Kemper, 2012

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Research works printed but not linked: 7

  1. Chang Y Luebke JI 2006 Age related increase in the slow outward calcium-activated potassium current in layer 3 and layer 5 pyramidal cells in area 46 of the rhesus monkey J Neurophysiol 98 2622 2632 17804579 PMC2410032
  2. Hof PR Nimchinsky EA Young WG Morrison JH 2000 Numbers of Meynert and layer IVB cells in area V1: a stereologic analysis in young and aged macaque monkeys J Comp Neurol 420 113 126 10745223
  3. Jones EG 2007 The Thalamus Cambridge University Press New York
  4. Merrill DA Roberts JA Tuszynski MH 2000 Conservation of neuron number and size in entorhinal cortex layers II, III, and V/VI of aged primates J Comp Neurol 422 396 401 10861515
  5. Peters A Moss MB Sethares C 2000 Effects of aging on myelinated nerve fibers in monkey primary visual cortex J Comp Neurol 419 364 376 10723011
  6. Sandell JH Peters A 2001 Effects of age on nerve fibers in the rhesus monkey optic nerve J Comp Neurol 429 541 553 11135234
  7. Wisco JJ Killiany RJ Guttmann CRG Warfield SK Moss MB Rosene DL 2008 An MRI study of age-related volume changes in the rhesus monkey Neurobiol Aging 29 1563 1575 17459528 PMC2605721

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Authors
Peters, A., & Kemper, T.
Affiliations
Boston University (US)
Corresponding author
Peters, Alan
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
2012-10
Volume
33
Issue
10
Pages
2357-2372
ISSN
0197-4580 (ISSN-L)
OpenAlex
W2083634530
Cited by
135
References
96
Citations by year
2026: 6 · 2025: 7 · 2024: 10 · 2023: 14 · 2022: 7 · 2021: 9 · 2020: 10 · 2019: 6 · 2018: 12 · 2017: 6 · 2016: 6 · 2015: 8 · 2014: 15 · 2013: 10 · 2012: 9
FWCI
1.42
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health/ National Aging Institute (5P01 AG 000001 2)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Aging and Gerontology Research
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
aging, rhesus monkeys, cognitive decline, cerebral hemispheres, myelinated axons, myelin degeneration, synaptic loss, dendritic spines, prefrontal cortex, cortical disconnection, oligodendrocytes, astrocytes, microglia, cortical neurons, cortical thickness
MeSH terms
Aging, Animals, Cognition Disorders, Female, Macaca mulatta, Male, Monkey Diseases, Myelin Sheath, Nerve Degeneration, Neuroglia, Neurons, Cerebrum

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