Researchers at the National Institutes of Health and their colleagues have found that a toxic protein made by the body called DUX4 may be the cause of two very different rare genetic disorders. For patients who have facioscapulohumeral ...
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Professor Megumu K. Saito and his colleagues have revealed that SMN, a protein involved in spinal muscular atrophy (SMA), promotes the functional maturation of mitochondria by regulating miRNA expression along with MYOD1 ...
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University of Virginia Health neuroscientists have discovered a potential way to disrupt the chronic inflammation responsible for multiple sclerosis.
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Prior research has shown strong links between greater time spent on screens and eating disorders and body dissatisfaction. A new study, published in the journal Eating and Weight Disorders—Studies on Anorexia, Bulimia, ...
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Type 2 diabetes is a common disease, affecting 10% of the adult world population, in which heredity and overweight are known risk factors. In a new study at Karolinska Institutet, researchers show that women and men with ...
Feb 15, 2023
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Meghan, Duchess of Sussex, reportedly had it before marrying Prince Harry. Jennifer Lopez is also apparently a fan. We're talking about a type of facial called a "buccal massage".
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You may have heard of a treatment called dry needling and wondered what it is or if it's right for you. While the name of the procedure may sound intimidating, dry needling is an accessible and commonly offered therapy for ...
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Muscle(from Latinmusculus, diminutive ofmus“鼠标”)是身体的收缩组织is derived from the mesodermal layer of embryonic germ cells. Muscle cells contain contractile filaments that move past each other and change the size of the cell. They are classified as skeletal, cardiac, or smooth muscles. Their function is to produce force and cause motion. Muscles can cause either locomotion of the organism itself or movement of internal organs. Cardiac and smooth muscle contraction occurs without conscious thought and is necessary for survival. Examples are the contraction of the heart and peristalsis which pushes food through the digestive system. Voluntary contraction of the skeletal muscles is used to move the body and can be finely controlled. Examples are movements of the eye, or gross movements like the quadriceps muscle of the thigh. There are two broad types of voluntary muscle fibers: slow twitch and fast twitch. Slow twitch fibers contract for long periods of time but with little force while fast twitch fibers contract quickly and powerfully but fatigue very rapidly.
This text uses material fromWikipedia, licensed underCC BY-SA
