Background and Objective
Pseudohypertrophic muscular dystrophy (PMD) is a kind of lethal X-chain recessive inherited disease. The etiological factor is mainly due to gene mutation of Xp21 which induce the structural and functional abnormality of a kind of cell skeleton protein: dystrophin. According to the extent of structural change and functional incapacitation of dystrophin, PMD can be divided into two types: Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD). DMD is more fr...