Results 111 to 120 of about 31,996 (262)
The Journal of Physiology, EarlyView.Abstract figure legend Beat‐locked mitochondrial ATP transients reveal modular, sex‐specific bioenergetic control during excitation–contraction coupling. A, each action potential activates L‐type CaV1.2 channels, producing a Ca2+ influx that triggers ryanodine receptors (RyR2) and elicits SR Ca2+ release.
Paula Rhana +2 more
wiley +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend We investigated how 6 weeks of dynamic knee‐extensor interval training with blood flow restriction (BFR‐leg) and without (CTRL‐leg) impacts performance and its mechanisms using non‐invasive methods. Specifically, we used gold‐standard methods to assess neuromuscular function, vascular function using Doppler ultrasound, and near ...
Colin Lavigne +5 more
wiley +1 more source
THE DISTRIBUTION OF PHOSPHOARGININE AND PHOSPHOCREATINE IN MARINE INVERTEBRATES
The Biological Bulletin, 1971 1. The arginine, creatine, and related phosphagen content was determined in muscle-containing tissues of nine species of echinoderms, from four subphyla, and in one species of hemichordate. Similar determinations were made on the unfertilized ova of the starfish, Asterias forbesi, and of the two urchins, Arbacia punctata and Lytechinus variegatus.2 ...
openaire +3 more sources
Mitochondrial physiology in cardiac muscle of deer mice native to high altitude
The Journal of Physiology, EarlyView.Abstract figure legend High‐altitude deer mice exhibited evolved changes in mitochondrial energy metabolism and reactive oxygen species (ROS) management that may support cardiac performance under cold hypoxic conditions. High‐altitude mice had increased activity of lactate dehydrogenase (LDH) in the heart, probably enhancing the capacity for lactate ...
Ranim Saleem +3 more
wiley +1 more source
ATP and phosphocreatine in FVB and Mb hearts after TAC or sham surgery.
, 2013 Panels A–C show ATP, phosphocreatine (PCr) and the ratio of PCr to ATP. TAC decreased the content of ATP (A) and PCr (B), however, the differences between FVB and Mb were not significant. TAC decreased the ratio of PCr to ATP (C) in both FVB and Mb mice,
Steven P. Jones (290493) +6 more
core +1 more source
Turning up the heat: Can thermal therapy really protect muscle health in older adults?
Experimental Physiology, EarlyView.
Franck Brocherie +2 more
wiley +1 more source
Noise‐induced reduction and early recovery of superior paraolivary nucleus sound‐offset responses
The Journal of Physiology, EarlyView.Abstract figure legend Acoustic over‐exposure transiently disrupts auditory temporal processing in mouse superior paraolivary nucleus neurons. In control conditions, neurons exhibit robust sound‐offset (OFF) responses, which are abolished immediately following noise trauma, indicating impaired temporal encoding.
Mihai Stancu +4 more
wiley +1 more source
³¹P Saturation Transfer and Phosphocreatine Imaging in the Monkey Brain [PDF]
, 1991 ³¹P magnetic resonance imaging with chemical-shift discrimination by selective excitation has been employed to determine the phosphocreatine (PCr) distribution in the brains of three juvenile macaque monkeys.
Barker, Peter B. +4 more
core
, 2012 International audienceOBJECTIVE: The aim of the study was to determine the respective impact of thyroxine and growth hormone on in vivo skeletal mitochondrial function assessed via post exercise phosphocreatine recovery.
Klein, Marc +8 more
core +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend There has been controversy about the structural (capillary) response of skeletal muscle to altered O2 status, involving decreased supply (hypoxia) or increased demand (activity). Here we demonstrate that seven days of activation of skeletal muscle by indirect electrical stimulation led to significant expansion of the capillary ...
David Hauton +3 more
wiley +1 more source