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  • Title: Teneligliptin improves left ventricular diastolic function and endothelial function in patients with diabetes.
    Author: Hashikata T, Yamaoka-Tojo M, Kakizaki R, Nemoto T, Fujiyoshi K, Namba S, Kitasato L, Hashimoto T, Kameda R, Maekawa E, Shimohama T, Tojo T, Ako J.
    Journal: Heart Vessels; 2016 Aug; 31(8):1303-10. PubMed ID: 26266630.
    Abstract:
    Incretin hormones have been reported to have cytoprotective actions in addition to their glucose-lowering effects. We evaluated whether teneligliptin, a novel dipeptidyl peptidase-4 (DPP-4) inhibitor, affects left ventricular (LV) function in patients with type 2 diabetes mellitus (T2DM). Twenty-nine T2DM patients not receiving any incretin-based drugs were enrolled and prescribed with teneligliptin for 3 months. Compared to baseline levels, hemoglobin A1c levels decreased (7.6 ± 1.0 % to 6.9 ± 0.7 %, p < 0.01) and 1,5-anhydro-D-glucitol levels increased (9.6 ± 7.2 μg/mL to 13.5 ± 8.7 μg/mL, p < 0.01) after treatment. Clinical parameters, including body mass index and blood pressure, did not show any difference before and after treatment. Three months after treatment, there were improvements in LV systolic and diastolic function [LV ejection fraction, 62.0 ± 6.5 % to 64.5 ± 5.0 %, p = 0.01; peak early diastolic velocity/basal septal diastolic velocity (E/e') ratio, 13.3 ± 4.1 to 11.9 ± 3.3, p = 0.01]. Moreover, there was an improvement in endothelial function (reactive hyperemia peripheral arterial tonometry [RH-PAT] index; 1.58 ± 0.47 to 2.01 ± 0.72, p < 0.01). There was a significant negative correlation between changes in the E/e' ratio and RH-PAT values. Furthermore, circulating adiponectin levels increased (27.0 ± 38.5 pg/mL to 42.7 ± 33.2 pg/mL, p < 0.01) without changes in patient body weight. Teneligliptin treatment was associated with improvements in LV function and endothelial functions, and an increase in serum adiponectin levels. These results support the cardio-protective effects of teneligliptin in T2DM patients and increase in serum adiponectin levels.
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