Methods: The quantity and quality of SCs from various age rats were compared by MTT,immune cytochemistry and ACAS.

• 方法:用MTT法、免疫细胞化学技术及粘附细胞仪等手段,检测不同年龄段大鼠多代肌卫星细胞的增殖、分化能力和细胞数量。