Figure 7

Expression of MMP9 and TIMP1 was significantly increased in infected chickens. (a–f) Immunohistochemical results of MMP9 and TIMP1. (j) and (k) Positive areas in the infected and uninfected groups were compared. (g) Representative western blot results of MMP9 and TIMP1. (h,i) A histogram of the expression of MMP9 and TIMP1 with β-actin as a control. UN, uninfected; Q, Q group; G, 1G1 group. (*P < 0.05; **P < 0.01; ***P < 0.001; ****P < 0.0001, compared with uninfected group; #P < 0.05; ##P < 0.01; ###P < 0.001; ####P < 0.0001, compared with group G; n = 3 per group).