Figure 2: hIL-10 protein expression in plasma. After infarct induction, 50 ml of saline solution containing hIL-10 plasmid was injected retrovenously at 2, 5 or 10 ml/s into the coronary sinus. Blood samples from the coronary sinus were collected at two and 72 hours, and protein was quantified by ELISA. Protein concentrations (pg/ml) in blood after injection under different conditions were compared.