Diabetic nephropathy (DN) is one of the important diabetic microvascular complications. The chief pathological characteristic is kidney glomerular hypertrophy at beginning, the basement membrane of kidney glomeruli and tubules are thickening, mesangial matrix accumulates progressively. DN can develop glomerular and interstitial fibrosis at the end stage. These changes lead to renal failure at last. As the change of the lifestyle, the incidence of ESRD, coincident with the increasing number of diabetes has r...