Abstract
5rolGLP-HV is a promising dual-function peptide for the treatment of diabetes and thrombosis simultaneously. For investigating the therapeutic mechanism of 5rolGLP-HV for type 2 diabetes mellitus (T2DM), STZ-induced diabetic mice were established and treated with 5rolGLP-HV. The results showed that daily water and food intake, blood glucose, serum and pancreatic insulin levels significantly decreased after 5rolGLP-HV treatment with various oral concentrations, and 16 mg/kg was the optimal dose for controlling diabetes. 5rolGLP-HV treatment decreased the MDA levels and the T-SOD activity in serum and pancreatic of diabetic mice (but not up to significant difference), and significantly increased the expression of signal pathways related genes of rolGLP-1, also the density of insulin expression and the numbers of apoptosis cells in islets of diabetic mice were significantly decreased in comparison to the negative diabetic mice. These effects above may be clarified the hypoglycemic mechanisms of 5rolGLP-HV, and 5rolGLP-HV may be as a potential drug for diabetes in future.
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