Effects of lactobacilli with different regulatory behaviours on tight junctions in mice with dextran sodium sulphate-induced colitis

•Lactobacilli effect the concentration and location of TJs in colon of mice.•Lactobacilli restore TJs with significant inter- and intra-species differences.•Alleviation of colitis are highly correlated with TJs recovery by lactobacilli.•Lactobacilli restore the butyrate level in mice colon differently.