Researchers engineered mice with a mutation (E3896A) in the RyR1 calcium-binding site, eliminating calcium-induced calcium release (CICR) without affecting depolarization-induced calcium release. The ...

The mechanism of skeletal muscle contraction is a process that relies on calcium signaling. However, the physiological role of calcium-induced calcium release (CICR) through the ryanodine receptor ...

The control of muscle contraction is usually described in terms of excitation–contraction coupling or muscle activation. Muscle relaxation has received much less attention, although its control is ...

Abstract: A mathematical model for the excitation-contraction mechanism (E-C coupling) in cardiac cells has been formulated, based on the works of Tang and Othmer (1994), Luo and Rudy (1994), Jafri ...

Excitation-contraction (E-C) coupling processes become disrupted in heart failure (HF), resulting in abnormal Ca 2+ homeostasis, maladaptive structural and transcriptional remodeling, and cardiac ...

Using powerful new visualization technologies, researchers have captured the first 3-D images of the structure of a key muscle receptor, providing new insights on how muscles develop across the animal ...

Researchers have investigated the effect of increased cell temperature on the contractility of skeletal muscle and cardiac muscle by heating the muscle proteins using advanced microscopical techniques ...

Hierarchical structure of muscle and activation of thin filaments. In both skeletal and cardiac muscles under a relaxed state, a low intracellular calcium ion concentration is maintained and the ...

Almost everyone shrinks with old age. Many older adults have more difficulty gaining muscle than they did in their childhood and teenage years. And when it comes to maintaining that muscle, the phrase ...

From the Unit of Cardiac Physiology, Division of Cardiovascular Sciences, Manchester Academic Health Sciences Centre, University of Manchester, United Kingdom. From the Unit of Cardiac Physiology, ...