Objectives: We aimed to investigate the neuroprotective effects of linagliptin in an vitro 6-hydroxydopamine (6-OHDA) Parkinson’s disease model. Methods: 6-OHDA (200 µM) were administered SH-SY5Y cells for 24 h induce model vitro. Cells treated with (1, 10, 50 and 100 nM) 30 minutes before administration. Cell viability was examined by 3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromi...