Effect of EPEC endotoxin and bifidobacteria on intestinal barrier function through modulation of toll-like receptor 2 and toll-like receptor 4 expression in intestinal epithelial cell-18

Figure 1 Toll-like receptor 2 and toll-like receptor 4 mRNA expression in intestinal epithelial cell-18 cells post-treatment with EPEC endotoxin at different time points. A: TLR2 mRNA expression in the EPEC groups was significantly higher at 12 h and 16 h, compared to the control group (P < 0.05); B: TLR4 mRNA expression was highest in the EPEC group at 16 h. TLRs: Toll-like receptors.