Objective To investigate the relationship between serum total bilirubin(TBIL)level and cystatinC(Cys-c)in patients with type 2 diabetic nephropathy(DN).Methods We divided 561 patients with type 2diabetes mellitus(T2DM)into 3 groups:normo-albuminuria group(NAU group,232 cases),microalbuminuria group(MAU group,211 cases),and macroalbumnuria group(MAAU group,118 cases)according to urine microalbuminuria-to-creatinine ratio(UACR).Fasting serum TBIL levels were measured by enzymatic method and compared.We also a...