Objective To observe the changes of peripheral blood stem cells and stem cell factor(SCF) in patients with acute myocardial infarction(AMI) and the relationship between AMI and stem cells and SCF in peripheral blood.

• 目的观察急性心肌梗死(AMI)患者外周血干细胞和干细胞因子(stem cell factor,SCF)的变化及两者的相关性。