Control rats (control group) (n = 10), rats treated with CCl4 and water (water group) (n = 19) and rats treated with CCl4 and fermented milk containing Lactobacillus paracasei ssp. paracasei CNCM I-1518 (probiotic group) (n = 20). Western blot of ileal samples for (a) occludin, (b) claudin-4, (c) zonula occludens (ZO)-1 and (d) β-defensin-1, respectively, (e) ileal MDA levels, (f) correlation between ileal expression of β-defensin-1 and MDA, and (g) representative image of western blot of occludin, claudin-4, ZO-1 and β-defensin-1 in control, water or probiotic group. Values are mean ± SEM. CCl4, carbon tetrachloride, MDA, malondialdehyde. Cropped membranes are displayed and full-length blots are included in Supplementary Information.