Researchers from Tokyo Metropolitan University have shown that the protein Musashi-2 (Msi2) plays a key role in the regulation of mass and metabolic processes in skeletal muscle. They studied mice with the Msi2 gene knocked ...
Cell & Microbiology
Sep 11, 2023
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Declawing house cats to keep them from scratching people and furniture is controversial—and even banned in some countries and areas in the U.S.—but the practice is not limited to house cats. In a new study, researchers ...
Plants & Animals
Jul 31, 2023
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Actin filaments—protein structures critical to living movement from single cells to animals—have long been known to have polarity associated with their physical characteristics, with growing "barbed" and shrinking "pointed" ...
Cell & Microbiology
Jun 8, 2023
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133
Researchers at the University of Liège, Eric Parmentier and Marc Thiry have just made the unexpected discovery of a novel organization of muscle fibers in Parophidion vassali, a fish that lives in the Mediterranean Sea and, ...
Plants & Animals
Jun 5, 2023
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Senescent cells, often referred to as "zombie" cells, have long been associated with aging and disease. However, a new study from the Center for Regenerative Therapies Dresden (CRTD) at TU Dresden adds to a growing body of ...
Plants & Animals
Apr 14, 2023
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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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146
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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Scientists from Tokyo Metropolitan University have discovered that a protein called platelet-derived growth factor subunit B (PDGF-B) is continuously secreted from skeletal muscle cells and helps to repair muscles by encouraging ...
Cell & Microbiology
Jan 16, 2023
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What do video games and medical imaging tools have in common?
Cell & Microbiology
Oct 11, 2022
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Researchers from Tokyo Metropolitan University have discovered that a protein excreted by type I (slow) muscle fibers, key to muscle endurance, can cause surrounding myoblasts to differentiate into type I fibers. This upends ...
Cell & Microbiology
Sep 12, 2022
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Skeletal muscle is a form of striated muscle tissue existing under control of the somatic nervous system. It is one of three major muscle types, the others being cardiac and smooth muscle. As its name suggests, skeletal muscle is linked to bone by bundles of collagen fibers known as tendons.
Skeletal muscle is made up of individual components known as muscle fibers. These fibers are long, cylindrical, multinucleated cells composed of actin and myosin myofibrils repeated as a sarcomere, the basic functional unit of the cell and responsible for skeletal muscle's striated appearance and forming the basic machinery necessary for muscle contraction. The term muscle refers to multiple bundles of muscle fibers held together by connective tissue.
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