FGF2 and myocardial infarction: Consistent with known increases in Fgf2 expression following myocardial infarction (Zhao et al. 2011), Fgf2 mRNA levels were significantly increased in wild‐type hearts at 7 days after IR injury in both the IR area and the remote area of the left ventricle (Fig. 8A and B, P < 0.05).