It has been reported that IL-6 might be involved in the pathogenesis of ulcerative colitis and serum levels of these cytokines correlate with disease activity.[13, 14] In our study, difference between the mean value of IL-6 among relapsers and non-relapsers was not significant (t-value=0.85) and is in concordance with a previous report by Bitton et al.[6]. The gene discussed is IL6; the disease is ulcerative colitis.