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H2O2 dilates the coronary circulation and adenosine-induced vasodilation is catalase-sensitive. A–C show group data (n = 4) illustrating the catalase sensitivity of adenosine-induced coronary dilation (A), contractility (C), and heart rate (B) in WT mice. LVDP, left ventricular developed pressure. *P < 0.05 vs. adenosine alone.
