IL17A and colitis: We found that both mRNA and protein expression of IL-17 were significantly (P < 0.05) enhanced in DSS-induced colitis (Figures 1(a) and 1(b)), which is consistent with the results of a previous report [21]. L. acidophilus application at different doses in the C4–C8 groups all significantly (P < 0.05) attenuated colitis-increased IL-17 expression (Figures 1(a) and 1(b)) compared to levels in the nontreated or vehicle treated groups.