FAM3A and diabetes mellitus: Beyond regulating glucose and lipid metabolism, FAM3A-ATP-P2R pathway also exerts beneficial effects on ischemia/reperfusion injury (IRI) in mouse livers (Chen et al., 2017) and inhibition of FAM3A-ATP-P2R pathway is involved in the development of adipocyte dysfunction (Chi et al., 2017), which also plays important roles in the pathogenesis of diabetes.