title: [Sitagliptine (Januvia): incretin enhancer potentiating insulin secretion for the treatment of type 2 diabetes].
abstract: Sitagliptin (Januvia) is the first selective antagonist of dipeptidylpeptidase-4, an enzyme that degrades glucagon-like peptide-1 (GLP-1). This hormone is mainly secreted by ileal L cells and this secretion is abnormally low in patients with type 2 diabetes. Sitagliptin increases post-meal insulin secretion ("incretin effect) by enhancing the postprandial GLP-1 response ("incretin enhancer"), in a glucose-dependent manner. It improves glycaemic control (HbA1c) in type 2 diabetic patients treated by diet alone, by metformin, by sulfonylurea, by glitazone or by a metformin-sufonylurea combined therapy. The glucose-lowering effect is similar to that of glipizide, but with the advantage of no weight gain and no hypoglycaemic episodes. The tolerance to sitagliptin is excellent. Treatment is simple, with 100 mg once daily, without need of titration or home blood glucose monitoring. In Belgium, sitagliptin is currently reimbursed in patients with type 2 diabetes not adequately controlled with diet and metformin monotherapy.
authors: Université de Liège, Belgique.
authors: A J
authors: AJ
authors: Scheen
authors: L F
authors: LF
authors: Van Gaal
mesh_terms: D001530:Belgium; D003924:Diabetes Mellitus, Type 2 / Q000188:drug therapy*; D052216:Glucagon-Like Peptide 1 / Q000187:drug effects / Q000378:metabolism; D006801:Humans; D007004:Hypoglycemic Agents / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D054795:Incretins / Q000378:metabolism; D007328:Insulin / Q000378:metabolism*; D000078790:Insulin Secretion; D007349:Insurance, Health, Reimbursement; D007356:Insurance, Pharmaceutical Services; D011719:Pyrazines / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D000068900:Sitagliptin Phosphate; D014230:Triazoles / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*
chemical_list: D007004:Hypoglycemic Agents; D054795:Incretins; D007328:Insulin; D011719:Pyrazines; D014230:Triazoles; D052216:Glucagon-Like Peptide 1; D000068900:Sitagliptin Phosphate