Teneligliptin hydrobromide (CAS 906093-29-6) is a potent dipeptidyl peptidase-4 (DPP-4) inhibitor exhibiting competitive inhibition of human and rat plasma DPP-4 with an IC50 of approximately 1 nM DPP-4 also known as CD26 is a cell surface protease involved in immunoregulation signal transduction and apoptosis In vitro Teneligliptin hydrobromide reduces reactive oxygen species and modulates cell cycle and apoptotic gene expression in human endothelial cells exposed to high glucose In vivo it ameliorates hepatic steatosis and metabolic disturbances in murine models partly through activation of hepatic AMPK This compound supports studies of metabolic oxidative and inflammatory pathways