Lysine demethylase 2A (KDM2A) is a demethylase,which plays an important role in transcriptional cell proliferation, angiogenesis, tumorigenesis regulation, and artificial induced pluripotent stem cell technology.19-22) Bioinformatics software (TargetScan) predicts that KDM2Amay be a target gene of miR-134-5p. Thus, we speculatethat the role of miR-134-5p in MI may be related toKDM2A.In this study, we investigated the expression and theunderlying mechanisms of miR-134-5p and KDM2A inMI, aiming to find new targets for MI treatment.