In a new research report, a team of scientists led by Johns Hopkins Medicine say people with severe obesity and a common type ...

The contraction of smooth muscle is an essential process underpinning diverse physiological functions ranging from gastrointestinal motility to vascular regulation. At its core, smooth muscle ...

A new study provides evidence that COVID-19 patients' heart damage is caused by the virus invading and replicating inside heart muscle cells, leading to cell death and interfering with heart muscle ...

IT is well established that an increase in the intracellular concentration of ionized calcium after excitation in the membrane is the key factor for initiation of contraction of various types of ...

Since early in the pandemic, COVID-19 has been associated with heart problems, including reduced ability to pump blood and abnormal heart rhythms. But it's been an open question whether these problems ...

Because RyR1 is also expressed in neurons, immune cells, and vascular smooth muscle, the E3896A model offers a unique tool to examine CICR's broader physiological roles. By combining gene engineering, ...

The study, published in Developmental Cell, further shows that the resting tension in the heart cells is increased after a heart attack and other heart diseases. This changes the way that heart cells ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

Medically reviewed by Katrina Carter, DPT Key Takeaways Voluntary muscles can be controlled by the person, like muscles in your neck and legs. Involuntary muscles work without you thinking about it, ...