Fig. 5

MMP-12 was markedly increased by LPS during the later stage of RSV infection. a: mRNA levels of MMP-12. b: MMP-12 protein in BALF. Values are expressed as mean ± sem. Data are representative of two independent experiments performed on 6 animals per group. *, p < 0.05, **, p < 0.01, ***, p < 0.001, shown comparing the control group with the other groups; #, p < 0.05, ##, p < 0.01, shown comparing the RSV + LPS group with the LPS group; ^, p < 0.05, shown comparing the RSV + LPS group with the RSV group