SLC5A1 and hypertrophic cardiomyopathy: More recently, Radovits and Merkely et al. reported that both gene and protein SGLT1 expressions were significantly (and comparably) upregulated at the level of cardiomyocytes in patients with HF due to idiopathic dilated cardiomyopathy, ischemic heart disease without and with diabetes, though, interestingly, not in hypertrophic cardiomyopathy.