News from University of Rochester, recently a new research on old mouse found loss of muscle stem cells is the key of inducing the muscle function decline. This result is challenge to other popular theory before which says motor neuron is the key reason of muscle function decline. Researchers wish to keep on developing new drugs or treatment to reduce the muscle stem cells loss, and muscle function decline.
When 30 years old, our muscle size and strength start reducing slowly, this change is quite subtle. When we are 70 years old, this muscle function decline will make us frail. We may need help from others to complete some simple activities. This decline speed may vary from different people, but it can reduce through our daily diet and exercises. In fact, no person can avoid this muscle function decline, even athletes.
In order to prevent humans from similar problem, and develop new treatment for muscle function decline, scientists have already started research of molecular mechanism for muscle function decline on elder mouse. Researchers explained muscles of adults have a lot of stem cells banks which help us on daily exercises and muscle injury. It can generate new muscle cells to restore injured muscle tissues, and develop muscles.
For elders with few movement, the stem cells in body still make efforts to maintain the muscle function, In future, scientists will make further research on how to maintain the update of stem cells banks in body, in meanwhile, they expect to develop new treatment on myodegeneration disease.
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