β-arrestin 2 attenuates lipopolysaccharide-induced liver injury via inhibition of TLR4/NF-κB signaling pathway-mediated inflammation in mice

Figure 4 Expression of key molecules involved in the TLR4/NF-κB signaling pathway in vitro. A: Western blot analysis of the expression of key molecules involved in the TLR4/NF-κB signaling pathway. The levels of GAPDH are shown as a loading control; B: Relative gray value quantitative evaluation for p-IκBα/IκBα and p-p65/p65. ^aP < 0.05 vs vehicle control; ^cP < 0.05 vs control siRNA group.