Scientists Discover Role of Genetic Mutation in Two Forms of MD . To ensure a supply of healthy muscle tissue, the body constantly undergoes a process of turnover, whereby it builds new muscle protein while degrading and ridding itself of the old. Scientists believe a malfunction of this process is behind certain types of muscular dystrophies (MD), a group of genetic ...

What is Myopathy?The myopathies are neuromuscular disorders in which the primary symptom is muscle weakness due to dysfunction of muscle fiber. Other symptoms of myopathy can include include muscle cramps, stiffness, and spasm. Myopathies can be inherited (such as the muscular dystrophies) or acquired (such as common muscle cramps). Myopathies are grouped as follows: congenital myopathies: characterized by developmental ...

Sex of Adult Mouse Muscle Stem Cells Affects Their Muscle Regeneration Efficiency . Researchers have recently discovered that the sex of cells in a subpopulation of muscle-generating stem cells in adult mice can considerably influence their capacity to repair tissue. The finding may persuade researchers to consider the implication of relying on only male cells or female cells in research, and ...

Adult Mouse Muscle Stem Cells Are Capable of Long-Term Self-Renewal . Researchers have recently discovered that a subpopulation of muscle-generating stem cells in adult mice can replicate themselves up to 300 times over a six-month period. The finding, they believe, demonstrates the feasibility of generating large quantities of adult skeletal muscle stem cells required for use in clinical applications, such as ...