Objective To study the model of diabetic nephropathy in Kunming mice by single-dose high-dose injection and multiple doses of continuous injection of streptozotocin( STZ) to obtain the best modeling method. Methods Kunming mice( n = 26) were randomly divided into 3 groups:mice in the negative control group( n = 6) were injected with anequal volume of sodium citrate buffer intraperitoneally,mice in the single high-dose group( n = 10)were injected with 150 mg/kg STZ only once,mice in the multiple low-dose gro...