Figure 4. Comparison of the expression of surface receptors of inflammatory stimulants in NC HUVEC and IR HUVEC. Representative western-blot images (A) and densitometry based quantitative analysis of TLR4 (B) IL1R1 (C), IL1R2 (D), and TNFR1 (E) in NC HUVEC and IR HUVEC. β-actin was used as a loading control. (n = 3; mean ± SEM; * p<0.05).