Cited by 362Nerve injury and regenerationMuscle Physiology and DisordersExercise and Physiological Responses

Differential regulation by exercise of BDNF and NT-3 in rat spinal cord and skeletal muscle

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Gómez‐Pinilla, F., Ying, Z., Opazo, P., Roy, R. R., Edgerton, V. R.·2001·European Journal of Neuroscience

Abstract

We have investigated the impact of neuromuscular activity on the expression of neurotrophins in the lumbar spinal cord region and innervating skeletal muscle of adult rats. Rats were exercised on a treadmill for 1 day or 5 consecutive days and euthanized at 0, 2 or 6 h after the last bout of exercise. By Day 1, there was no clear evidence of an increase in brain-derived neurotrophic factor (BDNF) mRNA in the spinal cord or the soleus muscle. By Day 5, there was a significant increase in BDNF mRNA in the spinal cord at 2 h post-training, and the soleus muscle showed a robust increase between 0 and 6 h post-training. Immunoassays showed significant increases in BDNF protein in the soleus muscle by training Day 5. Immunohistochemical analyses showed elevated BDNF levels in motoneuron cell bodies and axons in the ventral horn. Neurotrophin-3 (NT-3) mRNA was measured to determine whether selected neurotrophins respond with a selective pattern of induction to neuromuscular activity. In the spinal cord, there was a progressive post-training decrease in NT-3 mRNA following a single bout of training, while there was a significant increase in NT-3 mRNA at 2 h post-training by Day 5. The soleus muscle showed a progressive increase in NT-3 mRNA by Days 1 and 5 following training. These results show that neuromuscular activity has specific effects on the BDNF and NT-3 systems, and that repetitive exercise affects the magnitude and stability of these responses.

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Crossref · 10.1046/j.0953-816x.2001.01484.x

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  • Training increases BDNF expression in the hippocampus, cerebral cortex, ST, brainstem, and spinal cord.

    “Under the influence of the training process, increased BDNF expression in the hippocampus, cerebral cortex, ST, brainstem, and spinal cord was observed [131,174,179,181,182].”

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Authors
Gómez‐Pinilla, F., Ying, Z., Opazo, P., Roy, R. R., & Edgerton, V. R.
Affiliations
University of California, Los Angeles (US)
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2001-03
Volume
13
Issue
6
Pages
1078-1084
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2068181807
Cited by
362
References
43
Citations by year
2026: 2 · 2025: 9 · 2024: 3 · 2023: 12 · 2022: 16 · 2021: 10 · 2020: 13 · 2019: 11 · 2018: 20 · 2017: 11 · 2016: 20 · 2015: 19 · 2014: 24 · 2013: 16 · 2012: 20
FWCI
5.16
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01ns038978-03)
  • National Institute of Neurological Disorders and Stroke (NS 39522, NS-38978, R01NS039522)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
physical activity, brain-derived neurotrophic factor, neurotrophin-3, neuromuscular activity, lumbar spinal cord, soleus muscle, ventral horn motoneurons, neurotrophin gene expression, treadmill training, repeated exercise
MeSH terms
Animals, Motor Activity, RNA, Messenger, Spinal Cord, Rats, Sprague-Dawley, Muscle, Skeletal, Brain-Derived Neurotrophic Factor, Neurotrophin 3, Rats

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