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Abstract Summary and conclusion Diabetic nephropathy is one of the major chronic microvascular complications in diabetes mellitus and a leading cause of end-stage renal disease, accounting for nearly half of all incident cases of end-stage renal disease in the developed world. In 2014, the American Diabetes Association and the National Kidney Foundation reached an agreement which diabetic nephropathy was referred to as the chronic kidney disease caused by diabetes mellitus, with a persistent estimated glomerular filtration rate of < 60 ml per min per 1.73 m2 or a urinary albumin/creatinine ratio of > 30 mg/g for more than 3 months. Assessment of renal disorders using earlier, more sensitive and specific markers can optimize detection of renal impairment in diabetic patients with normal albumin excretion rate (early nephropathy). Several low-molecular weight proteins (ribonuclease, b-2 microglobulin, retinol binding protein, a-1 microglobulin and cystatin C) have been investigated as markers of glomerular filtration rate. Of these endogenous markers of glomerular filtration rate, Cystatin C and b-2 microglobulin are most frequently investigated and recent publications have shown Cystatin C to be the most promising. This study was carried out at The Department of Internal Medicine, Tanta University Hospitals on 50 patients. The duration of the study was 12 months. |