LCN2 and acute kidney injury: In our current study, using samples obtained within 24 h of admission, miR-24 alone (AUC = 0.828), miR-23a alone (AUC = 0.801), miR-145 alone (AUC = 0.763) and the three-miRNA panel (AUC = 0.853) all had higher discriminatory abilities than serum NGAL (AUC = 0.735) in diagnosing post-AMI AKI.