The high-frequency oscillatory pattern of insulin release is disturbed in type 2 diabetes. Although sulfonylurea drugs are widely used for the treatment of this disease, their effect on insulin release patterns is not well established. The aim of the present study was to assess the impact of acute treatment and 5 weeks of sulfonylurea (gliclazide) treatment on insulin secretory dynamics in type...

Tolbutamide and gliclazide block the KATP channel Kir6.2/Sur1, causing membrane depolarization and stimulating insulin secretion in pancreatic beta cells. We examined the ability of the EPAC-selective cAMP analog 8-pCPT-29-O-Me-cAMP-AM to potentiate the action of these drugs and the mechanism that might account for it. Insulin secretion stimulated by both 200 mM tolbutamide and 20 mM gliclazide...

We evaluated insulin resistance and assessed the effect of gliclazide on insulin resistance in a patient with diabetes mellitus associated with Turner's syndrome. Insulin-induced glucose metabolism markedly decreased compared with 12 healthy subjects. The insulin dose-response curve of this patient shifted to the right and down, and recovered somewhat after the administration of gliclazide. Thi...

This study evaluated possible interaction between Ayurvedic anti-urolithiac agent hydroalcoholic extract of Didymocarpus pedicellata (HADP) leaves and gliclazide. Dose optimization performed by measuring serum glucose levels after 200 400 mg/kg HADP administration to normal rats. Pharmacokinetic in rats gliclazide alone combination with (400 mg/kg). Diabetes was induced streptozotocin (55 mg/kg...

The objective of the present investigation was to study the effect of polyethylene glycol 4000 (PEG 4000) on in vitro dissolution of gliclazide from solid dispersions. Initial studies were carried out using physical mixtures of the drug and carrier. Solid dispersions were prepared by the melting or fusion method.Phase and saturation solubility study, in vitro dissolution of pure drug, physical ...

the objective of the study was to compare pharmacokinetic and pharmacodynamic parameters of gliclazide after administration of immediate (ir) and modified release (mr) tablets. the experiment included rats with both normoglyceamia and streptozocin (stz)-induced hyperglyceamia. several mr formulations were designed and in vitro drug release profile was assessed by a dissolution test. for the fur...

Diabetes mellitus is characterized by oxidative stress, which in turn determines endothelial dysfunction. Gliclazide is a sulphonylurea antidiabetic drug with antioxidant effects due to its azabicyclo-octyl ring. It has been reported to potentially protect the vasculature through improvements in plasma lipid levels and platelet function. We hypothesized that gliclazide has a beneficial effect o...

A simple, rapid, and precise reversed-phase high-performance liquid chromatographic method for simultaneous analysis of metformin hydrochloride, gliclazide, and pioglitazone hydrochloride in a tablet dosage form has been developed and validated. Chromatography was performed on a 25 cm × 4.6 mm i.d., 5-μm particle, C18 column with 85:15 (v/v) methanol: 20 mM potassium dihydrogen phosphate buffer...

AIMS/INTRODUCTION The objective of the present study was to investigate the effects of CYP2C9*3 polymorphisms on the therapeutic response to gliclazide in type 2 diabetes patients. MATERIALS AND METHODS A total of 746 incident type 2 diabetes patients were included in this study. After enrolment, patients went on 4-week gliclazide monotherapy. Fasting plasma glucose was measured before and af...

Arginine-stimulated insulin and somatostatin release is enhanced by the sulfonylurea gliclazide. In contrast, gliclazide inhibits the glucagon response. The aim of the present study was to investigate whether this inhibition of glucagon release was mediated by a direct suppressive effect of gliclazide or was secondary to the paracrine effect of released somatostatin. To eliminate the paracrine ...