Figure 6. S14G-Humanin (HNG) prevented the activation of toll-like receptor 4/ nuclear factor κ-B (TLR4/NF-κB) and early growth response-1 (Egr-1) signaling. The levels of TLR4, p-NF-κB p65, and Egr-1 were measured using western blot analysis (**, P<0.01 vs. vehicle group; &, &&, P<0.05, 0.01 vs. asthma models).