REG1A and myocardial infarction: 2005), and in a pressure overload model generated by aortic constriction in rats (Kiji et al. 2005). Reg proteins have roles as anti‐inflammatory, antiapoptotic, and mitogenic agents (Parikh et al. 2012). Since Reg3γ gene expression was upregulated in myocardium post‐MI as well as in LPS‐induced cardiomyocytes in vitro, our findings suggest that Reg3γ is associated with inflammatory response in the heart.