Four-week treatment with vildagliptin increases fasting plasma levels of intact incretin hormones both in patients with type1 (T1DM) and type 2 (T2DM) diabetes. - Kelley,DE.; Dunning,BE.; Ligueros-Say-Lan,M.; Holst,JL.; Deacon,CF.; Foley,JE. (Diabetes, 2006)