PARP1 and oculocutaneous albinism type 1: There was an even greater difference in PARP-1 expression intensity between kidneys from ATN patients who did not reduce serum creatinine levels to below 1.7 mg/dL after transplantation and those from ATN patients who did (creatinine <1.7, PARP-1 1.79±0.62 vs. creatinine >1.7, PARP-1 2.33±1.04, p = 0.0001, Student's t-test).