Cited by 65Nerve injury and regenerationStress Responses and CortisolGenetics, Aging, and Longevity in Model Organisms

Stress-induced changes in brain-derived neurotrophic factor expression are attenuated in aged Fischer 344/N rats

Smith, Mark A., Cizza, Giovanni·1996·Neurobiology of Aging

Abstract

Aging and stress can sometimes result in a decline in brain function. We addressed the question whether changes in the expression of neurotrophic factors, which are necessary for the survival and maintenance of neurons, might occur during aging and stress. Therefore, we used in situ hybridization to investigate the effects of aging and stress on neurotrophic factor expression in young (3-4 month) and old (24 month) male Fischer 344/N rats. The ability of acute immobilization stress (2 h) to modulate BDNF mRNA levels in old rats was significantly reduced both in the hippocampus (a smaller decrease in BDNF) and the PVN (a smaller increase in BDNF) compared to young rats. In contrast, the induction of nerve growth factor and neurotrophin 3 (NT-3) by stress was not influenced by age. The diminished BDNF responses to stress in aged rats may be relevant to difficulties in adaptation to stress encountered during old age.

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Crossref · 10.1016/s0197-4580(96)00066-8

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  • There is contradictory information concerning whether chronic restraint stress reduces BDNF mRNA levels, with some studies reporting a decrease and others reporting no change.

    “However, there is contradictory information thus far concerning whether CRS reduces BDNF mRNA levels, some reporting a decrease79 and other studies reporting no change.80,81”

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Authors
Smith, M. A., & Cizza, G.
Affiliations
National Institutes of Health (US)
Corresponding author
Smith, Mark A.
Venue
Neurobiology of Aging
Publisher
Elsevier BV
Published
1996-11
Volume
17
Issue
6
Pages
859-864
ISSN
0197-4580 (ISSN-L)
OpenAlex
W2079996274
Cited by
65
References
39
Citations by year
2025: 1 · 2024: 1 · 2022: 1 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 4 · 2017: 2 · 2016: 4 · 2015: 1 · 2014: 1 · 2013: 1 · 2012: 2
FWCI
0.40
Type
journal article
Language
en
Open access
closed
Locations
  • Neurobiology of Aging (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
brain-derived neurotrophic factor, aging, restraint stress, neurotrophic factor expression, hippocampus, paraventricular nucleus, nerve growth factor, neurotrophin-3, stress adaptation
MeSH terms
Aging, Animals, Autoradiography, Brain Chemistry, Hippocampus, Male, Nerve Growth Factors, Paraventricular Hypothalamic Nucleus, Rats, Inbred F344, RNA, Messenger, Stress, Psychological, In Situ Hybridization, Dentate Gyrus, Brain-Derived Neurotrophic Factor, Neurotrophin 3, Rats

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