Skeletal muscle interstitial Po2 kinetics during recovery from contractions

Increasing temperature speeds intracellular PO2 kinetics during contractions in single Xenopus skeletal muscle fibers.

Precise determination of the effect of muscle temperature (T(m)) on mitochondrial oxygen consumption kinetics has proven difficult in humans, in part due to the complexities in controlling for T(m)-related variations in blood flow, fiber recruitment, muscle metabolism, and contractile properties. To address this issue, intracellular Po(2) (P(i)(O(2))) was measured continuously by phosphorescenc...

Skeletal muscle Po2 during imminent shock.

Low PO2 conditions induce reactive oxygen species formation during contractions in single skeletal muscle fibers

Li Zuo, Amy Shiah, William J. Roberts, Michael T. Chien, Peter D. Wagner, and Michael C. Hogan Department of Medicine, University of California, San Diego, La Jolla, California; Department of Biological Sciences, Oakland University, Rochester, Michigan; Respiratory Therapy Division, School of Health and Rehabilitation Sciences, Davis Heart and Lung Research Institute, The Ohio State University ...

Control of microvascular PO2 kinetics following onset of muscle contractions: role for AMPK

Yutaka Kano, David C. Poole, Mizuki Sudo, Toshiro Hirachi, Shinji Miura, and Osamu Ezaki Department of Engineering Science, Bioscience, and Technology Program, University of Electro-Communications, Chofu, Tokyo, Japan; Departments of Anatomy, Physiology and Kinesiology, Kansas State University, Manhattan, Kansas and School of Sports and Health Sciences, University of Exeter, Exeter, United King...

RhoA expression during recovery from skeletal muscle disuse.

Functional overload and anabolic steroid administration induce signaling pathways that regulate skeletal muscle RhoA expression. The purpose of this study was to determine RhoA and associated protein expression at the onset of disuse and after a brief period of reloading. Male Sprague-Dawley rats were randomly assigned to cage control (Con), 3 days of hindlimb suspension (Sus), or 3 days of hin...