Increased interleukin 1 beta in human skeletal muscle after exercise.

Journal Article

Interleukin 1 beta (IL-1 beta) is a protein released from blood monocytes and related cells in response to infectious or inflammatory stimuli. Although IL-1 beta 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-1 beta was found in muscle tissue up to 5 days after exercise using specific immunohistochemical tissue staining. Increased IL-1 beta 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-1 alpha or tumor necrosis factor alpha was observed before or after exercise. These results implicate IL-1 beta in the metabolic adaptations of muscle tissue, which occur in response to noninfectious stresses.

Duke Authors

Cited Authors

  • Cannon, JG; Fielding, RA; Fiatarone, MA; Orencole, SF; Dinarello, CA; Evans, WJ

Published Date

  • August 1989

Published In

Volume / Issue

  • 257 / 2 Pt 2

Start / End Page

  • R451 - R455

PubMed ID

  • 2669532

International Standard Serial Number (ISSN)

  • 0002-9513

Language

  • eng