Intracoronary administration of the Doxy, ML-7, and L-NAME mixture during ischemia led to a decrease in MMP-2 (p = 0.0134), MMP-9 (p = 0.017), MLC1 (p = 0.003), and BNP-26 (p = 0.002) concentrations in the blood as compared to the MI. Here, MMP9 is linked to ischemia.