Inflammatory macroscopic score of experimental colitis. Macroscopic score of mice treated with DSS that received the different L. lactis strains compared to the DSS group without any specific administration. Disease activity index (DAI) was scored for body weight loss, diarrhoea and rectal bleeding. Bars represent the mean ± SD of 6 mice per group of two independent experiments. Asterisks represent statistical significance (**p < 0.01 or ***p < 0.0001). All groups are statistically significant to the control group (***p < 0.0001).