Objective To study cell apoptosis on human renal tubular epithelial cells(hRTECS) induced by urinary protein from membranous nephropathy.Methods Urinary protein in patients with membranous nephropathy was extracted,and protein composition,bacterial endotoxin test and creatinine level were analyzed.1.0,2.0,4.0,8.0 mg/ml urinary protein were respectively given to stimulate hRTEC for 48 h,control group was no protein.hRTEC apoptosis index were detected by Hoechst33258 dying method to determine the influence of...