Dipeptidyl peptidase-4 (DPP-4) inhibitors belong to a new class of antidiabetic drugs that stabilize the incretin hormones glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic peptide, resulting in improved metabolic control andreductionofpostprandialhyperglycemia(21).Importantly, incretin-based therapies may exert a beta cell protective effect (22). Furthermore, gliptins ameliorate oxidative stress and beta cell destruction in rodents with and without diabetes (23–26). Interestingly, studies with DPP-4 inhibitors have indicated beneficial effects on blood vessels and the heart via both GLP1-dependent and GLP1-independent effects, and GLP-1 receptor activation was recently linked to control of blood pressure (27–29). Furthermore, GLP-1 activationhasbeendemonstratedtoprotectislet cellsagainst corticosteroid-induced apoptosis (30,31).