In the diabetic heart, miR‐146a was associated with elevated inflammatory factor and extracellular matrix protein production and cardiac functional alterations.49 In addition, miR‐193‐5p was found to be actively involved in the development of diabetic cardiomyopathy, possibly through negatively regulating its downstream gene IGF2.50 Panguluri et al14 suggested that miR‐301a mediated regulation of voltage‐gated potassium channel Kv4.2 and participated in the electrical remodelling in diabetic cardiomyopathy. The gene discussed is KCND2; the disease is diabetic cardiomyopathy.