Response of rat adrenal neuropeptide Y and tyrosine hydroxylase mRNA to acute stress is enhanced by long-term voluntary exercise

Response of rat adrenal neuropeptide Y and tyrosine hydroxylase mRNA to acute stress is enhanced... Neuropeptide Y (NPY) and catecholamines are synthesized in response to stress. Adrenal NPY mRNA and tyrosine hydroxylase (TH) mRNA were measured by Northern analysis 2 h after a single 20 min bout of shaker stress in exercised and sedentary male Sprague–Dawley rats. Long-term exercise (18 weeks of voluntary wheel running) alone did not significantly alter adrenal NPY mRNA or TH mRNA levels. However, increases in stress-induced NPY and TH mRNA abundances were significantly enhanced by long-term exercise ( P <0.01). These results suggest that long-term physical activity may enhance the ability to synthesize NPY and catecholamines under conditions of stress. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Neuroscience Letters Elsevier

Response of rat adrenal neuropeptide Y and tyrosine hydroxylase mRNA to acute stress is enhanced by long-term voluntary exercise

Neuroscience Letters, Volume 242 (3) – Feb 20, 1998

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Publisher
Elsevier
Copyright
Copyright © 1998 Elsevier Science Ireland Ltd
ISSN
0304-3940
DOI
10.1016/S0304-3940(98)00064-0
Publisher site
See Article on Publisher Site

Abstract

Neuropeptide Y (NPY) and catecholamines are synthesized in response to stress. Adrenal NPY mRNA and tyrosine hydroxylase (TH) mRNA were measured by Northern analysis 2 h after a single 20 min bout of shaker stress in exercised and sedentary male Sprague–Dawley rats. Long-term exercise (18 weeks of voluntary wheel running) alone did not significantly alter adrenal NPY mRNA or TH mRNA levels. However, increases in stress-induced NPY and TH mRNA abundances were significantly enhanced by long-term exercise ( P <0.01). These results suggest that long-term physical activity may enhance the ability to synthesize NPY and catecholamines under conditions of stress.

Journal

Neuroscience LettersElsevier

Published: Feb 20, 1998

References

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