Effect of Insulin Sensitizers and Sodium Glucose Cotransporter 2 Inhibitor on Glycemic State and Cardiovascular Performance in Type II Diabetic Rats
Abstract Background Cardiovascular disease is the most life-threatening diabetic complication. Type II diabetes may lead to damage of the heart muscle. Sodium glucose cotransporter 2 (SGL2) inhibitors are a new class of diabetic medications indicated only for the treatment of type II diabetes. Aim This investigation was assigned to compare the effect of metformin and SGL2 inhibitors (dapaglifilizone) in type II diabetic rats. Design and methods: Eighty rats divided into four groups were used: non diabetic; diabetic; diabetic metformin -treated; diabetic dapagliflizoline- treated. At the end, arterial blood pressure and cardiac performance (cardiac contractility and heart rate) were assessed. Serum glucose, glycosylated hemoglobin (HbA1c), insulin, lipid profile, total antioxidant capacity, malondialdehyde, tumor necrosis factor α were measured. HOMA-IR index was calculated. DNA changes were assessed from hearts and aortea. Aortic endothelial changes recorded using H&E and masson trichome techniques. Results Glycemic index, lipid profile, oxidative stress and inflammatory parameters were significantly improved in both metformin and dapagliflizoline treated groups with also significant improvement in blood pressure, Cardiac performance and reduction in collagen deposition in aortic tissue and DNA fragmentation. Dapagliflizoline treatment results were significantly improved in all parameters compared to metformin treatment. Conclusion SGL2 inhibitors (dapaglifilizone) successfully restored glycemic state, cardiac performance, DNA and endothelial changes in type II diabetic rats compared to metformin.