GHRL and myocardial infarction: The results showed that ADMSC (Figure 7(b)-(C), 152.5 ± 25.28/mm2) and ADMSC-ghrelin (Figure 7(b)-(D), 233.7 ± 36.23/mm2) all resulted in better arteriole density in scar areas than MI group (Figure 7(b)-(B), 79.97 ± 11.18/mm2) (P < 0.01).