TLR4 and inflammatory bowel disease: The average levels of Gly-TLR4 and Non-GlyTLR4 induced by the five oral C. concisus strains isolated from patients with IBD were 5.33±2.33 and 3.31±1.61 respectively, which were not significantly different from that induced by the three enteric C. concisus strains isolated from patients with IBD (5.33±1.70 and 1.90±0.27 respectively) (P>0.05).