Additional file 3: Figure S2. of The lung response to ozone is determined by age and is partially dependent on toll-Like receptor 4

BAL neutrophil counts at 48 h post-O3exposure in WT and TLR4−/− mice. WT and TLR4−/− mice were exposed as neonates (A) or adults (B), to O3 or filtered air (FA). In both age groups, O3-mediated neutrophil response was not delayed in TLR4−/− mice compared to WT mice. NS: No significant difference, compared to FA exposed group (n = 4–6 mice/group). (EPS 113 kb