MicroRNA‐101 (miR‐101) could target runt‐related transcription factor 1 (RUNX1), which was an upregulated gene in myocardial infarction (MI). A, The heatmap of the top 15 differentially expressed genes (DEGs) in the microarray data GSE46395. The abscissa refers to the sample number, the ordinate refers to the DEGs, and the upper right histogram represents color grade. Each rectangle in the image represents the expression of a sample. B, Gene interaction network of the DEGs and MI genes, in which the diamonds refer to MI genes and the circles refer to DEGs. C, Expression of 8 nonoverlapping miRs in myocardial tissues in the sham‐operated and MI rats determined by reverse transcription quantitative polymerase chain reaction. BCR indicates B cell receptor; DBN1, Drebrin; FLNC, filamin C; LTB, heat‐lable enterotoxin B unit; RTN4, reticulon 4; SH2D5, SH2 domain‐containing 5; SLFN2, Schlafen; TTC9, Tetratricopeptide repeat domain 9; Tubb6, beta 6 class V β‐tubulin.