Results MSCs were intact and fibroblast cell-shaped.The growth curve and adhesive rate showed that cells from newborn mice grew faster than those from young and adult mice at the same condition.

• 贴壁率的观察和生长曲线显示，在相同的培养条件下，新生小鼠细胞增殖最快，细胞可扩增能力最强，而成年小鼠细胞增殖最慢，细胞可扩增能力最弱，青年小鼠细胞介于两者之间。