AIM: The purpose of this research was to determine the changes of the inflammatory parameters in the long term with the use of dipeptidyl peptidase-4 inhibitors. Material and Methods: In this research we have retrospectively reviewed the records of 80 patients who had added dipeptidyl peptidase-4 inhibitors (40 sitagliptin and 40 vildagliptin) to their ongoing therapies. Patients’ values of inflammation at the beginning of this process were taken as initial values, while values at the end of this process were considered as final values. Results: A total of 80 patients [38.8% (n = 31) of the patients were male, while 61.3% (n = 49) were female] enrolled in the study. When the whole group was evaluated, the mean age was 56.1 ± 9.7 years. The median follow-up time of the patients with DPP-4 inhibitors was 18 (2 - 64) months. The mean MPV value was measured as 8.79 ± 1.71 fL before DPP-4 inhibitors and it was 10.06 ± 1.42 fL after the follow-up period (p < 0.001). The median value serum GGT was 30.5 (13 - 194) U/L before DPP-4 inhibitor and 29.5 (12 - 112) U/L at the end (p = 0.048). The mean uric acid level before the use of di-peptidyl peptidase-4 inhibitors was 4.7 ± 1.6 mg/dL, and this level was 5.0 ± 1.5 mg/dL after the follow-up period (p = 0.048). Conclusion: In this study, it was observed that MPV and GGT levels were improved by dipeptidyl peptidase-4 inhibitors in long-term.
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