FABP4 and alkaline phosphatase measurement: In subgroup of AMI patients (n = 35) whose serial measurements of FGF21, FABP4, FFA and cTnT from hospital admission to 3 days after admission were avairable, we observed that FGF21 levels but not FABP4 and FFA levels at 3 days were still significantly higher than controls (patients with stable AP) (p < 0.05) (data not shown).