HGF and myocardial infarction: Increased wall thicknesses were present in non-infarcted regions of treated hearts (Figure 1) and scar sizes were also smaller in the treated MI hearts (MI, 35.7+/−0.02%; MI+IGF+HGF, 27.12+/−0.09%; MI+Sca-1+/CD31−cells, 24.9%+/−0.02%; MI+IGF+HGF+Sca-1+/CD31−cells, 19.9%+/−0.02%; n = 6, p<0.05 vs all other MI groups).