Chronic infusion with GLP-1(9–36) had no effect on MI-induced myocardial hypertrophy, as assessed by echocardiographic IVSD (Fig. 1c) and cardiac morphometry (whole heart and LV/body weight ratio, Fig. 1d–e), although in vitro phenylephrine-induced hypertrophy of H9c2 cardiomyoblasts was reduced by GLP-1(9–36) (Fig. 1f). Here, GLP1R is linked to myocardial infarction.