The type 1 ryanodine receptor (RyR1) is an important calcium release channel in skeletal muscles essential for muscle contraction. It mediates calcium release from the sarcoplasmic reticulum, a ...

New research has identified the specific biological mechanism behind the muscle dysfunction found in myotonic dystrophy type 1 (DM1) and further shows that calcium channel blockers can reverse these ...

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 ...

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 ...

New mechanism found: Researchers discovered that statins can bind to and activate ryanodine receptors in muscle cells, potentially explaining muscle pain in some patients. Why it matters: Uncovering ...

Ferulic acid suppresses ileal smooth muscle contraction by inhibiting calcium ion influx through voltage-dependent calcium channels. This action may help prevent or treat excessive intestinal motility ...

Calcium is critical for bone health, optimal muscle activity, and other body processes such as blood clotting and heart function. How much calcium you need depends on your age and stage of life. Share ...

When you have atrial fibrillation, the two upper chambers of your heart (atria) don't beat in sync with the two lower chambers (ventricles). This makes your heart beat out of rhythm and sometimes very ...