DUSP6 and myocardial infarction: The areas of ischemic myocardial tissue (area at risk, AAR) assessed by Evans blue perfusion were similar in WT and Dusp6-deficient hearts at 24 h and 72 h after MI (Fig. 2a, b, d, e), suggesting that the level of ischemia induced by LAD occlusion was consistent among WT and mutant groups.