Serum samples were obtained at 48 hours after renal transplantation from recipients that received IgG-treated kidneys or CD47mAb-treated kidneys. (A) Creatinine, (B) BUN, (C) potassium, and (D) phosphorus were measured using an autoanalyzer. Two days after transplantation, serum creatinine, BUN, potassium and phosphorus were significantly lower in rats that received the CD47mAb-treated kidneys than the IgG-treated control kidneys.