We examined fractalkine levels at different time points by enzyme-linked immunosorbent assay ( ELISA ) in 20 patients with AMI , and 10 patients with stable angina pectoris ( AP ) undergoing percutaneous coronary intervention ( PCI ) , and in 100 patients included in the randomized Autologous Stem-Cell Transplantation in Acute Myocardial Infarction ( ASTAMI ) trial .