Scientists have developed an injectable conductive hydrogel encapsulating plasmid DNA-eNOS adipose derived stem cells (ADSCs) for the treatment of MI and the results are significant increase of ejection fraction (EF), shortened QRS interval in the EKG, smaller infarction size, lessened fibrosis area, a higher density of capillary vasculature, and a significant improvement of cardiovascular hemodynamics [210]. The gene discussed is NOS3; the disease is myocardial infarction.