...Cornelia E. Fanter; Kenneth S. Campbell; Daniel E. Warren ABSTRACT We aimed to determine how increases in intracellular H + and inorganic phosphate (P i ) to levels observed during anoxic submergence affect contractility in ventricular muscle of the anoxia-tolerant Western painted turtle, Chrysemys...

... mouse lumbrical muscle at physiological temperatures. Potentiation Inorganic phosphate Contractile kinetics Skeletal muscle The rate of force decline during muscle relaxation can become faster when a muscle is activated repeatedly. This effect is readily seen during repeated twitch...

...Andreas Werner; Leif Dehmelt; Perihan Nalbant ABSTRACT In vertebrates, the level of inorganic phosphate (P i ) is tightly balanced both inside the cell and in the whole organism. A number of different Na + -dependent P i cotransport systems involved in P i homeostasis have been identified...

...T. S. Stanton; R. P. Glahn; R. F. Wideman, Jr ABSTRACT Experiments were performed to evaluate the effects of dietary available phosphorus (aP) and PTH infusion rates on avian urinary inorganic phosphate (Pi) excretion. In experiment I, female domestic fowl were fed diets containing low (0-45...