Several studies indicated that type 2 diabetes mellitus and hypertension are associated with increased cardiovascular complications. Recently, studies suggest that metformin and vildagliptin can reduce cardiovascular complications in diabetic patients with unclear mechanisms. This work aimed to determine the effect of metformin and vildagliptin on diabetic-hypertensive patients. Patients were allocated into four groups: groupI: healthy volunteers, groupII: patients recently diagnosed with their hypertension and diabetes, groupIII: patients treated with captopril (25mg once daily) for their hypertension in addition to metformin (1000mg bid) groupIV: patients treated with captopril (25mg bid) for hypertension in addition to vildagliptin (50mg bid). At the end of the therapeutic period, then total cholesterol, LDL,serum Creatinine level, blood pressure and vascular endothelial growth factor (VEGF) levels in serum will be measured for different groups to estimate the benefits of one drug over the other one in protecting against cardiovascular risks for diabetic hypertensive patients..
