Simultaneous determination of anti-diabetic drugs

A novel reverse phase, isocratic HPLC method is described to separate five anti-diabetic drugs i.e., glimepiride, metformin, sitagliptin, rosiglitazone and pioglitazone. Nucleosil C18 analytical column was used as stationary phase, while mobile phase consisted of acetonitrile:phosphate buffer: methanol (40/40/20, v/v) pH 2.0. Effluent was monitored at a flow rate 1 mL/min and detected at wavelength of 240 nm. This research produced excellent chromatography over a wide concentration range of 25-10000 ng/mL. Sepprated and well resolved quantifiable peaks were obtained and test results were linear in this range. Correlation coefficient of more than 0.9990 was witnessed as well as Low %RSD values i.e., maximum 2.0% documented excellent precision of the method. Good recoveries from pharmaecutical (99-101%), urine and plasma samples (>96%) in a range of concentrtion granted very good linearity, accuracy and precision. The projected method has satisfactory applications in quality control of these molecules as well as quantification of these molecules in urine and plasma samples.

Effect of enzymes-hydrolyzed wheat bran on antioxidant ability in diabetes rats / 吉林大学学报(医学版)

Objective To observe the effect of enzymes-hydrolyzed wheat bran(EHWB) on antioxidant system in diabetic rats.Methods Diabetes mellitus models were induced by alloxan injection and EHWB was used to test its effect on anti-oxidative capacity;the EHWB was given intragastrically(i.g.),sodium ferulate(SF) as a positive group.The level of blood glucose,total anti-oxidative capacity(T-AOC),the activities of superoxide dismutase(SOD),glutathione peroxidase(GSH-Px),and xanthine oxidase(XOD),and the content of malondiadehyde(MDA) were detected respectively in serum and liver of rats.Results EHWB significantly decreased the level of blood glucose and increased the level of T-AOC,as well as the activities of GSH-Px and SOD,and decreased the activity of XOD and the content of MDA.However,there was no difference between the groups feeding SF and EHWB.Conclusion EHWB can be used to decrease blood glucose and improve antioxidant ability in diabetes mellitus rats,the effect of EHWB is similar to SF.The effect of decreasing blood glucose of EHWB is related to protecting liver.

Relationship between expression of retinal intercellular adhesion molecule-1 and blood-retinal barrier rupture and therapeutic effect of triamcinolone acetonide in diabetic rats / 中华眼底病杂志

0.05) while was higher in the rest of TA treatment groups than that in the control group (P