The mRNA expression of Cyp2e1 in colon scrapes of WT and Selenof-KO mice was over 1000-fold less than observed in liver, and were at the limit of detection for AOM/DSS-treated mice on selenium-deficient diets, so we were unable to assess catalytic activity of CYP2E1 in colon tissues. The gene discussed is CYP2E1; the disease is infectious otitis media.