Figure 2. Inhibition of miR-320a improved cardiac dysfunction and cardiac microvessel injury induced by doxorubicin. (A) Cardiac expression of miR-320a detected by real-time PCR. (B) Echocardiographic detection of mice with different treatments. (C) Hemodynamic analysis measured by Millar cardiac catheter system of mice with different treatment. (D) Relative BNP expression level in heart from mice with different treatments measured by real-time PCR. (E) TUNEL staining of heart sections from mice with different treatments. (F) Expression level of CD31, CD34 and eNOS in heart detected by immunohistochemical staining. Scale bar, 200μm. Data are expressed as mean ± SEM, n≥4, *P<0.05 versus control, #P<0.05 versus Doxo.