IL6 and colitis: The induction of colitis by TNBS administration significantly attenuated IL-6 levels compared to the absolute control group, and likewise to the 50% EtOH vehicle group (35.84 ± 4.29 vs. 60.48 ± 4.55; 35.26 ± 2.96 vs. 60.48 ± 4.55 ng/L).