Fig. 6From: Bacillus licheniformis PF9 improves barrier function and alleviates inflammatory responses against enterotoxigenic Escherichia coli F4 infection in the porcine intestinal epithelial cellsEffect of B. licheniformis PF9 on TEER and permeability in ETEC F4-challenged IPEC-J2 cells. A These TEER values were measured before (0 h) and after ETEC F4 treatments (1, 2, 3, 4, and 5 h). B Cell permeability was tested by the fluorescent intensity of FD4 after B. licheniformis PF9 treatment for 5 h. The data were presented as mean ± SD, n = 4. Different letters indicate a significant difference at P < 0.05Back to article page