Anxiolytic effect of Bifidobacterium longum in dextran sodium sulfate (DSS) colitis is independent of its anti-inflammatory activity. (A) Latency to step down from the elevated platform in control (water, n = 13), DSS + CM (n = 12) and DSS + B. longum treated (n = 11) mice. (B) Histology composite score of colonic inflammation in control, DSS + CM and DSS + B. longum treated mice. (C) Myeloperoxidase activity in colon tissues of control, DSS + CM and DSS + B. longum treated mice. Individual values are shown. Bars indicate mean (*P < 0.05 vs water, #P < 0.05 vs DSS-CM treated mice).