Fig. 7.

Recovery of cardiac function at 4 wk after MSC transplantation. Echocardiography was performed in noninfarct (control), infarct [myocardial infarction (MI)], and infarct hearts treated with MSCs (MI + MSC). Representative recordings of M-mode echocardiogram (A), left ventricle (LV) ejection fraction (B), and fraction shortening (C) are shown. Small arrow, systole; large arrow, diastole. Results are expressed as means ± SD (n = 4 animals/group). *P < 0.01 vs. control. **P < 0.05 vs. MI. Results show that treatment of MI by MSCs improved functional recovery.