A heart attack is a life-threatening condition, with patients remaining at risk of premature death long after the actual attack—50% to 60% of patients die subsequently as a result of sudden cardiac death, triggered by cardiac ...
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A new editorial paper titled "Global consensus for sarcopenia" has been published in Aging.
Jun 26, 2024
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Biomedical engineers at Duke University have developed a new technique to better understand and test treatments for a group of extremely rare muscle disorders called dysferlinopathy or limb girdle muscular dystrophies 2B ...
Jun 21, 2024
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The over-the-counter supplement nicotinamide riboside, a form of vitamin B3, increased the walking endurance of patients with peripheral artery disease, a chronic leg condition for which there are few effective treatments.
Jun 18, 2024
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A new study, led by Professors Mashaghi and Clevers from Leiden University and Hubrecht Institute in the Netherlands, has introduced a novel approach using intestinal organoids to uncover the mechanism of gastrointestinal ...
Jun 14, 2024
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A group of researchers from the University of Tartu and international scientists discovered new mechanisms of how stroke occurs by studying changes in mouse and human cells. The study, published in Circulation Research, lays ...
Jun 14, 2024
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An international research team, coordinated by academics from the University of Bologna and the IRCCS—Policlinico Sant'Orsola Hospital, has identified a key growth factor capable of exerting a proliferative and regenerative ...
Jun 12, 2024
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Approximately one in every 20,000 to 40,000 children born in Japan and about one in every 100,000 throughout the world bear a mutation in the WRN gene. This gene is responsible for producing the Werner protein, which belongs ...
Jun 12, 2024
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Having explored how the heart is formed in utero, a University of Houston pharmacology researcher is reporting how cells and molecules act during that early formation and what might cause the heart disease called left ventricular ...
Jun 10, 2024
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As we age, our appearance changes, our hair turns gray and wrinkles appear. And we become more susceptible to disease. One reason for this is that our telomeres shorten. These are protective caps at the ends of the chromosomes, ...
Jun 4, 2024
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Muscle (from Latin musculus, diminutive of mus "mouse") is the contractile tissue of the body and 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.
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