In a study by Cai et al., the angiogenic effect of vascular endothelial growth factor (VEGF) gene and/or bone marrow mesenchymal stem cells (BMSCs) following myocardial infarction was compared to a saline control, using Spraque–Dawley rats (n = 4 in each group) [15]. This evidence concerns the gene VEGFA and myocardial infarction.