Glucose and urinary albumin levels after STZ injection in rats. After rats were injected with STZ, blood glucose level and urinary albumin level were determined at different time intervals as indicated. Blood glucose levels were significantly increased in rats with injection of STZ and treatments of Yishen or benazepril. Urinary protein was also gradually increased in rats with STZ injection. However, both Yishen and benazepril treatments were able to reduce the amount of protein in the urine but were not able to bring protein content back to its normal level. Data are expressed as mean ± SD from eight rats. * indicates p < 0.05 as compared to normal control group.