TFF3 and myocardial infarction: Administration of recombinant TFF3 to the ischemic myocardium of the TFF3−/− mice immediately after coronary artery ligation increased the level of TFF3 in the ischemic myocardium (supplementary Fig. 7) and significantly reduced the level of myocardial infarction in reference to that with PBS administration (Fig. 8).