Researchers at Washington University School of Medicine in St. Louis have described a missing link in understanding how damage to the body's cellular power plants leads to Parkinson's disease and, perhaps ...
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Researchers have shown that transplanting stem cells derived from normal mouse blood vessels into the hearts of mice that model the pathology associated with Duchenne muscular dystrophy (DMD) prevents the ...
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An embryo is an amazing thing. From just one initial cell, an entire living, breathing body emerges, full of working cells and organs. It comes as no surprise that embryonic development is a very carefully ...
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Researchers have made a major advance in efforts to regenerate damaged hearts.
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A heart attack doesn't just damage heart muscle tissue by cutting off its blood supply, it also sets off an inflammatory cascade that worsens underlying atherosclerosis, actively increasing the risk for a future heart attack. ...
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A study led by researchers from McGill University provides new insights into the structure of muscle tissue in the heart – a finding that promises to contribute to the study of heart diseases and to the engineering of ...
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Scientists at Duke University Medical Center have shown the ability to turn scar tissue that forms after a heart attack into heart muscle cells using a new process that eliminates the need for stem cell transplant.
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(Medical Xpress)—Professor Mark Kendall of the University of Queensland, Australia, has announced at this year's TEDGLobal Conference that a skin patch he and colleagues have developed will soon begin field ...
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Dying cells play an unexpected and vital role in the creation of muscle fibers, researchers at the University of Virginia School of Medicine have determined. The finding could lead to new ways to battle conditions such as ...
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A study appearing in the Journal of Nutritional Biochemistry demonstrates that grapes are able to reduce heart failure associated with chronic high blood pressure (hypertension) by increasing the activity of several genes ...
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Stanford University School of Medicine scientists have created a mouse model of muscular dystrophy in which degenerating muscle tissue gives off visible light. The observed luminescence occurs only in damaged muscle tissue ...
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(Medical Xpress)—New research from UC Davis published in the Proceedings of the National Academy of Sciences shows that blocking an enzyme that promotes inflammation can prevent the tissue damage following a heart attack ...
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A single dose of an investigational anti-inflammatory drug called inclacumab considerably reduces damage to heart muscle during angioplasty (the opening of a blocked artery), according to a recent international clinical trial ...
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University of California, San Diego bioengineers have demonstrated in a study in pigs that a new injectable hydrogel can repair damage from heart attacks, help the heart grow new tissue and blood vessels, ...
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Injecting specialized cardiac stem cells into a patient's heart rebuilds healthy tissue after a heart attack, but where do the new cells come from and how are they transformed into functional muscle?
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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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