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 ...

Actomyosin is a protein complex composed of actin and myosin. It is found in muscle fibers where it plays a role in muscle contraction. Actin is one of the most abundant proteins in eukaryotes. It ...

Adult rats were treated with nicotine (3 mg·kg −1 ·d −1, sc) for 6 weeks. After the rats were sacrificed, aortic rings were prepared for detecting vascular reactivity, and thoracic aorta and ...

Researchers at UT Southwestern Medical Center at Dallas are the first to use genetically engineered mice containing a fluorescent molecule to examine in real time the chemical reactions that result in ...

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.

Research team from the Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences, Toho University — including Associate Professor Keisuke Obara, Lecturer Kento Yoshioka, and Professor ...

Muscle twitching is an experience of sudden involuntary repetitive muscle contraction and relaxation, usually visible under the skin. Twitching of a muscle is called fasciculation. In addition, some ...

Editor’s note: Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports, and is the author of the book “Practical ...