As the role of Parkin’s mitophagy in recently reported diabetic cardiomyopathy (DCM) or diabetes-associated submandibular gland (SMG) disease are very controversial [5, 17, 22, 23, 31], future studies on diabetes related to Parkin are needed and this study is important in that regard. The gene discussed is PRKN; the disease is diabetic cardiomyopathy.