Real-time PCR analyses for DNA repair enzymes. The mRNA expression of Neil1, OGG1, 8-oxo-GTP, PARP, UDG and Apex was determined in WT and IL-6 KO mice at 3, 6 and 12 hours after PH using quantitative-real time PCR. Data represent mean ± SEM (n = 3). *P < 0.05 compared to KO mice. (A) Neil1, (B) OGG1, (C) UDG, (D) 8-Oxo-GTP, (E) PARP, (F) Apex.