Cited by 84Neuroinflammation and Neurodegeneration MechanismsGlaucoma and retinal disordersMultiple Sclerosis Research Studies

Effects of age on the glial cells in the rhesus monkey optic nerve

Sandell, Julie H., Peters, Alan·2002·Journal of Comparative Neurology

Abstract

The optic nerve is a circumscribed white matter tract consisting of myelinated nerve fibers and neuroglial cells. Previous work has shown that during normal aging in the rhesus monkey, many optic nerves lose some of their nerve fibers, and in all old optic nerves there are both myelin abnormalities and degenerating nerve fibers. The present study assesses how the neuroglial cell population of the optic nerve is affected by age. To address this question, optic nerves from young (4–10 years) and old (27–33 years) rhesus monkeys were examined by using both light and electron microscopy. It was found that with age the astrocytes, oligodendrocytes, and microglia all develop characteristic cytoplasmic inclusions. The astrocytes hypertrophy and fill space vacated by degenerated nerve fibers, and they often develop abundant glial filaments in their processes. Oligodendrocytes and microglial cells both become more numerous with age, and microglial cells often become engorged with phagocytosed debris. Some of the debris can be recognized as degenerating myelin, and in general, the greater the loss of nerve fibers, the more active the microglial cells become. J. Comp. Neurol. 445:13–28, 2002. © 2002 Wiley‐Liss, Inc.

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Crossref · 10.1002/cne.10162

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  • A significant fraction of adult-born OLs survive long-term.

    “Nevertheless, the data suggest that a significant fraction of adult-born OLs survive long-term, in keeping with previous reports that OLs continue to accumulate with age in the mouse corpus callosum (McCarthy and Leblond, 1988) and the primate optic nerve (Sandell and Peters, 2002; Peters, 2009).”

    From Oligodendrocyte Dynamics in the Healthy Adult CNS: Evidence for Myelin Remodeling (2013) · cites this paper as Sandell and Peters, 2002

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Authors
Sandell, J. H., & Peters, A.
Affiliations
Boston University (US)
Corresponding author
Sandell, Julie H.
Venue
Journal of Comparative Neurology
Publisher
Wiley
Published
2002-02-15
Volume
445
Issue
1
Pages
13-28
ISSN
  • 0021-9967 (ISSN-L)
  • 1096-9861
OpenAlex
W1988276826
Cited by
84
References
58
Citations by year
2025: 1 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 4 · 2020: 2 · 2019: 2 · 2018: 5 · 2017: 2 · 2016: 5 · 2015: 3 · 2014: 7 · 2013: 4 · 2012: 6
FWCI
1.93
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Comparative Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (2 P01-AG 00001, P01AG000001)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Ophthalmology › Glaucoma and retinal disorders
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
Keywords
glial cells, astrocytes, oligodendrocytes, microglia, rhesus monkeys, nerve fiber degeneration, myelin degeneration, astrocyte hypertrophy, glial filaments, phagocytosis, white matter
MeSH terms
Aging, Animals, Astrocytes, Cell Nucleus, Macaca mulatta, Microscopy, Electron, Nerve Fibers, Neuroglia, Oligodendroglia, Optic Nerve, Microglia

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