Reference : Metabolic clearance rate of insulin in type 2 diabetic patients treated with combined...
Scientific journals : Article
Human health sciences : Endocrinology, metabolism & nutrition
Metabolic clearance rate of insulin in type 2 diabetic patients treated with combined insulin and sulfonylurea therapy.
Castillo, M. J. [> > > >]
Scheen, André mailto [Université de Liège - ULiège > Département des sciences cliniques > Diabétologie, nutrition et maladie métaboliques - Médecine interne générale >]
Lefebvre, Pierre [Centre Hospitalier Universitaire de Liège - CHU > > Diabétologie,nutrition, maladies métaboliques >]
Revista Espanola de Fisiologia
Instituto Espanol de Fisiologia y Bioquimica
Yes (verified by ORBi)
[en] Cross-Over Studies ; Diabetes Mellitus, Type 2/drug therapy/metabolism ; Drug Interactions ; Drug Therapy, Combination ; Female ; Glipizide/pharmacology/therapeutic use ; Glucose Clamp Technique ; Humans ; Insulin/pharmacokinetics/therapeutic use ; Male ; Metabolic Clearance Rate/drug effects ; Middle Aged
[en] The metabolic clearance rate of insulin (MCRI) in 10 non-obese type 2 diabetic patients treated with either insulin alone or combined insulin plus sulfonylurea therapy is investigated. A classical 2-hour euglycaemic hyperinsulinaemic glucose clamp using the artificial pancreas was performed in a randomized order after two 6-week periods of treatment: either with subcutaneous injections of insulin alone or with insulin plus oral administration of the sulfonylurea compound glipizide at the dose of 3 x 10 mg/day. The MCRI was calculated knowing the constant insulin infusion rate (0.1 and measuring basal and steady-state plasma free insulin and C-peptide levels. When the test was performed at the end of the period of treatment with insulin plus glipizide and 30 min after the ingestion of the last dose of 10 mg glipizide, plasma C-peptide levels were significantly increased and steady-state free insulin levels tended to be slightly higher whereas the metabolic clearance rate of glucose was not affected. The MCRI was significantly reduced by glipizide from 23.3 +/- 2.9 to 18.9 +/- 2.0 p < 0.05. These results demonstrate that the sulfonylurea glipizide decreases the MCRI. This effect may play a role in the hypoglycemic action of sulfonylureas.

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