Objective To observe the ultrastructural changes in the muscular tissues of Duchenne muscular dystrophy mouse models with dystrophin/utrophin double-knockout (DKO) after transplantation of bone marrow-derived mesenchymal stem cells (MSCs).

• 目的观察Duchenne型肌营养不良症模型DKO小鼠经骨髓间质干细胞(MSC)移植治疗后肌组织的超微结构改变情况。