One small study examined cardiac samples from individuals with dilated cardiomyopathy, hypertrophic cardiomyopathy and healthy controls, which also supported upregulation of ACE2 in HCM tissue, but did not observe a difference in ACE2 expression between HCM patients taking ACE inhibitor medicines and those who did not (13). Here, ACE2 is linked to hypertrophic cardiomyopathy.