Progressive muscular dystrophy refers to a group of hereditary myopathies characterized by progressive weakness, deterioration and regeneration of muscle fibers. Duchenne muscular dystrophy (DMD)is an X-linked recessive disorder that affects 1:3500 males and is caused by mutation in the dystrophin gene which is responsible for the maintenance of mechanical stability at the muscle cell membrane. Symptoms are seldom noted until the child is between 2-5 years old. The disease affects male only and is inherited in the female line. The major characteristics of the disease are muscle wasting,...