Cited by 1,150Neurogenesis and neuroplasticity mechanismsNeuroinflammation and Neurodegeneration MechanismsMemory and Neural Mechanisms

Experience-Induced Neurogenesis in the Senescent Dentate Gyrus

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Kempermann, Gerd, Kuhn, H. Georg, Gage, Fred H.·1998·The Journal of Neuroscience

Abstract

We demonstrate here that under physiological conditions neurogenesis continues to occur in the dentate gyrus of senescent mice and can be stimulated by living in an enriched environment. Neurogenesis was investigated by confocal microscopy of three-channel immunofluorescent staining for the proliferation marker bromodeoxyuridine (BrdU) and neuronal and glial markers. Quantification was performed with unbiased stereological counting techniques. Neurogenesis decreased with increasing age. Stimulation of adult and aged mice by switching from standard housing to an enriched environment with opportunities for social interaction, exploration, and physical activity for 68 d resulted in an increased survival of labeled cells. Phenotypic analysis revealed that, in enriched living animals, relatively more cells differentiated into neurons, resulting in a threefold net increase of BrdU-labeled neurons in 20-month-old mice (105 vs 32 cells) and a more than twofold increase in 8-month-old mice (684 vs 285 cells) compared with littermates living under standard laboratory conditions. Corresponding absolute numbers of BrdU-positive astrocytes and BrdU-positive cells that did not show colabeling for neuronal or glial markers were not influenced. The effect on the relative distribution of phenotypes can be interpreted as a survival-promoting effect that is selective for neurons. Proliferation of progenitor cells appeared unaffected by environmental stimulation.

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Crossref · 10.1523/jneurosci.18-09-03206.1998

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Research works printed but not linked: 3

  1. Coggeshall RE, Lekan HA (1996) Methods for determining numbers of cells and synapses: a case for more uniform standards for review. J Comp Neurol 364:6 -15.
  2. Shepherd GM (1994) Neurobiology. New York: Oxford UP.
  3. Silver L M (1995) Mouse genetics. New York: Oxford UP.

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Authors
Kempermann, G., Kuhn, H. G., & Gage, F. H.
Affiliations
Salk Institute for Biological Studies (US)
Venue
The Journal of Neuroscience
Published
1998-05-01
Volume
18
Issue
9
Pages
3206-3212
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2154908600
Cited by
1,150
References
3
Citations by year
2026: 7 · 2025: 21 · 2024: 18 · 2023: 14 · 2022: 17 · 2021: 21 · 2020: 57 · 2019: 23 · 2018: 32 · 2017: 30 · 2016: 33 · 2015: 39 · 2014: 41 · 2013: 57 · 2012: 69
FWCI
10.43
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (acceptedVersion)
Funders
  • Hereditary Disease Foundation
  • Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
adult neurogenesis, dentate gyrus, aging, environmental enrichment, neuronal survival, neuronal differentiation, astrocytes, progenitor cell proliferation, hippocampus, senescence
MeSH terms
Aging, Animals, Bromodeoxyuridine, Cell Count, Cell Division, DNA, Female, Immunohistochemistry, Mice, Inbred C57BL, Nerve Tissue, Neurons, Phenotype, Microscopy, Confocal, Maze Learning, Dentate Gyrus, Mice

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