Different types of exercise encourage the formation of different types of muscle fibers, or the cells that make up your muscles. Slow twitch muscle fibers support endurance activities like long-distance running, while fast ...
Cell & Microbiology
Mar 24, 2023
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Cells harvested from your own muscles could one day improve or even save your life if you are suffering from muscle loss after disease or an injury. The implantation of muscle cells offers an incredibly promising treatment ...
Cell & Microbiology
Mar 16, 2023
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Head of the Crick's Stem Cells and Neuromuscular Regeneration Lab, Francesco Saverio Tedesco, is also a doctor at Great Ormond Street Hospital, where he specializes in neurological and neuromuscular diseases of childhood, ...
Cell & Microbiology
Mar 13, 2023
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9
Johns Hopkins Medicine researchers are collaborating with NASA to send human heart "tissue-on-a-chip" specimens into space as early as March. The project is designed to monitor the tissue for changes in heart muscle cells' ...
Space Exploration
Mar 7, 2023
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6
Researchers at the Centre for Genomic Regulation (CRG) in Barcelona have discovered a mechanism involving ribosomes which helps the heart toggle between a 'regular maintenance mode' for day-to-day function and an 'energy-boost ...
Cell & Microbiology
Mar 7, 2023
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Recent lab studies have shown that aging is a reversible process, an advancement that has prompted scientists to seek ways to stop the functional decline of cells and tissues, as well as restore their regenerative capacity.
Cell & Microbiology
Feb 17, 2023
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70
Researchers at Nagoya University in Japan, the University of Texas at Austin and the University of Washington have elucidated a mechanism that makes tiny plant stem cells develop stomata, the cellular valves of plants that ...
Cell & Microbiology
Feb 9, 2023
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45
A synthetic biosensor that mimics properties found in cell membranes and provides an electronic readout of activity could lead to a better understanding of cell biology, development of new drugs, and the creation of sensory ...
Cell & Microbiology
Feb 7, 2023
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70
You might think that only DC Comics superhero The Flash could run at a speed of 200 strides per second. But in the animal world, special muscles—called "superfast muscles"—can move as fast as Barry Allen.
Cell & Microbiology
Feb 6, 2023
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Stay-at-home orders issued at the onset of the COVID-19 pandemic ushered the hoarding of food and surges in digital entertainment subscriptions, restaurant take-out and delivery services—a perfect storm for a collective ...
Plants & Animals
Jan 24, 2023
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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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