Increased interleukin 1 beta in human skeletal muscle after exercise

Increased interleukin 1 beta in human skeletal muscle after exercise CANNON, JOSEPH G., ROGER A. FIELDING, MARIA A. FIATARONE,~COTT F. QRENCOLE,~HARLES A. DINARELLO,AND WILLIAM J. EVANS. Increased interleukin lp in human skeletal muscZe after exercise. Am. J. Physiol. 257 (Regulatory Integrative Comp. Physiol. 26): R451-R455,1989.-Interleukin l/3 (ILlb) is a protein released from blood monocytes and related cells in response to infectious or inflammatory stimuli. Although ILl@ is elevated in the circulation for only a few hours after an acute inflammatory challenge or exercise, it has been proposed to mediate anabolic and catabolic processes that can last for several days. In this report, eccentric exercise was used as a noninfectious inflammatory stimulus. IL-lp was found in muscle tissue up to 5 days after exercise using specific immunohistochemical tissue staining. Increased IL-lp immunoreactivity was observed in muscle tissue from four human subjects who performed the exercise, but not in tissue obtained at the same time intervals from two subjects who did not exercise. Little immunohistochemical evidence of interleukin-lac or tumor necrosis factor a! was observed before or after exercise. These results implicate IL-lp in the metabolic adaptations of muscle tissue, which occur in response to noninfectious stresses. companied by coordinated systemic adaptations known as acute-phase responses. Infectious agents and other http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png AJP - Regulatory, Integrative and Comparative Physiology The American Physiological Society

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Publisher
The American Physiological Society
Copyright
Copyright © 1989 the American Physiological Society
ISSN
0363-6119
eISSN
1522-1490
Publisher site
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Abstract

CANNON, JOSEPH G., ROGER A. FIELDING, MARIA A. FIATARONE,~COTT F. QRENCOLE,~HARLES A. DINARELLO,AND WILLIAM J. EVANS. Increased interleukin lp in human skeletal muscZe after exercise. Am. J. Physiol. 257 (Regulatory Integrative Comp. Physiol. 26): R451-R455,1989.-Interleukin l/3 (ILlb) is a protein released from blood monocytes and related cells in response to infectious or inflammatory stimuli. Although ILl@ is elevated in the circulation for only a few hours after an acute inflammatory challenge or exercise, it has been proposed to mediate anabolic and catabolic processes that can last for several days. In this report, eccentric exercise was used as a noninfectious inflammatory stimulus. IL-lp was found in muscle tissue up to 5 days after exercise using specific immunohistochemical tissue staining. Increased IL-lp immunoreactivity was observed in muscle tissue from four human subjects who performed the exercise, but not in tissue obtained at the same time intervals from two subjects who did not exercise. Little immunohistochemical evidence of interleukin-lac or tumor necrosis factor a! was observed before or after exercise. These results implicate IL-lp in the metabolic adaptations of muscle tissue, which occur in response to noninfectious stresses. companied by coordinated systemic adaptations known as acute-phase responses. Infectious agents and other

Journal

AJP - Regulatory, Integrative and Comparative PhysiologyThe American Physiological Society

Published: Aug 1, 1989

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