Figure 4. ALK4 haplodeficiency ameliorates MI-induced cardiac dysfunction. (A) M-mode echocardiograms obtained on the 3rd day post-MI. (B) Quantitative analysis of %EF, %FS, IVPW, IVS and LVID in both mice (n > 4 for each). *P < 0.05 compared with WT sham. #P < 0.05 compared with WT after MI. NS: not significant.