Scientists discover secreted protein helps repair and grow muscles

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 ...

Mini but mighty: Tiny WNT messengers help muscles grow

WNT signaling is crucial for the development of organisms and the maintenance of tissue homeostasis, since the WNT messengers are involved in a variety of cellular functions. In skeletal muscle, for example, they can increase ...

Learning how muscle cells feel the pull of gravity

People can easily feel the presence - or absence - of gravity. Our individual cells actually may be able to sense gravity, too, and that ability could play a role in the loss of muscle that occurs when humans spend time in ...

Heart saves muscle

A heart muscle protein can replace its missing skeletal muscle counterpart to give mice with myopathy a long and active life, show Nowak et al. The findings will be published online on Monday, May 25, 2009 and will appear ...

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