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Vildagliptin compared to glimepiride on post-prandial lipemia and on insulin resistance in type 2 diabetic patients.

Author(s): Derosa G(1), Bonaventura A(2), Bianchi L(2), Romano D(2), Fogari E(2), D'Angelo A(2), Maffioli P(2).

Affiliation(s): Author information: (1)Department of Internal Medicine and Therapeutics, University of Pavia and Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy; Center for the Study of Endocrine-Metabolic Pathophysiology and Clinical Research, University of Pavia, Pavia, Italy. Electronic address: giuseppe.derosa@unipv.it. (2)Department of Internal Medicine and Therapeutics, University of Pavia and Fondazione IRCCS Policlinico S. Matteo, Pavia, Italy.

Publication date & source: 2014, Metabolism. , 63(7):957-67

OBJECTIVES: To evaluate the effects of vildagliptin compared to glimepiride on glycemic control, insulin resistance and post-prandial lipemia. MATERIAL AND METHODS: 167 type 2 diabetic patients, not adequately controlled by metformin, were randomized to vildagliptin 50 mg twice a day or glimepiride 2 mg three times a day for 6 months, in a double blind, randomized clinical trial. We evaluated: body mass index (BMI), glycemic control, fasting plasma insulin (FPI), homeostasis model assessment insulin resistance index (HOMA-IR), fasting plasma proinsulin (FPPr), glucagon, lipid profile, resistin, retinol binding protein-4 (RBP-4), visfatin and vaspin. Furthermore, at the randomization and at the end of the study all patients underwent an euglycemic hyperinsulinemic clamp to evaluate M value and an oral fat load. RESULTS: Despite a similar decrease of glycated hemoglobin, there were an increase of body weight with glimepiride + metformin and a decrease with vildagliptin + metformin. Fasting plasma insulin increased with glimepiride + metformin, while it did not change with vildagliptin + metformin. Vildagliptin + metformin improved lipid profile. Regarding insulin sensitivity, vildagliptin + metformin increased M value. Resistin, RBP-4, vaspin and visfatin were decreased by vildagliptin + metformin, but in group to group comparison, only vaspin reduction resulted statistically significant. Vildagliptin + metformin reduced post-prandial lipemia and insulinemia compared to glimepiride + metformin. CONCLUSION: Vildagliptin, in addition to metformin, was more effective than glimepiride + metformin in reducing insulin resistance and post-prandial lipemia.

Page last updated: 2014-11-30

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