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Abstract
diabetes mellitus is a group of metabolic diseases characterized by hyerglycemia resulting from defects in insulin secretion, insulin action, or both.type 2 diabetes accounts for 90-95% of total dm worldwide.the increase in the number of diabetic people will be associated with an increase in the number of those with diabetic complications such as nephropathy, retinopathy,neuropathy, and atherosclerosions.diabetes causes changes within the cardiac structure and function, even in the absence of atherosclerosclerotic disease.