Figure 2.
Expression of HMGB1 and TLR4 in mice lung tissue (DAB chromogenic,×400). A. HMGB1/TLR4 expression in control group was weak. B. HMGB1/TLR4 expression in asthma group was stronger than the control group. C. HMGB1/TLR4 expression in low dose group was slightly decreased compared with asthma group. D. HMGB1/TLR4 expression in middle dose group was clearly decreased compared with asthma group. E. HMGB1/TLR4 expression in high dose group was increased compared with asthma group. The deep tan color showed the expression of HMGB1/TLR4.