Figure 6. Upregulated MITF expression improves cardiac function in MI rats. (A) the mRNA expression of MITF in cardiac tissues of MI rats detected by RT-qPCR, n = 3; (B) the protein expression of MITF in cardiac tissues of MI rats detected by western blot assay, n = 3; (C) the LVEF and LVFS of rats detected by ultrasonic cardiogram, n = 12; (D) the LVSP, LVEDP, +dp/dt max and -dp/dt max of rats detected by hemodynamic monitoring, n = 12; * versus the sham group, P < 0.05; # versus the MI group, P < 0.05; Data were analyzed by t test or one-way ANOVA. Pairwise comparison after ANOVA was performed by LSD-t. MI, myocardial infarction; LVEF, left ventricular ejection fraction; LVFS, left ventricular fraction shortening; LVSP, left ventricular systolic pressure; LVEDP, left ventricular end diastolic pressure; RT-qPCR, reverse transcription quantitative polymerase chain reaction; MITF, microphthalmia-associated transcription factor.