Objective:To investigate the value of homocysteine, cystatin C and glycosylated hemoglobin in the early diagnosis of type 2 diabetic nephropathy. Methods:Collected the serum of 112 patients who stay in our hospital from October 2011-January 2013 and 66 cases healthy individuals (healthy control group) in the same period, divided patients into group A (DM group, the UAER in ≤ 20ug/min) 32 cases, group B (early diabetic nephropathy, 20ug/min 展开▼