Fig. 3From: Toll-like receptor 9 partially regulates lung inflammation induced following exposure to chicken barn airMyeloperoxidase activity assay for lung neutrophil quantitation. TMB substrate was added to protein extracts of whole lung tissue from exposed and unexposed WT and TLR9-deficient (TLR9-) mice and read at a450 after 2 min (n = 6). Activity was assessed by comparison to a standard curve. A reduction was seen in 20 day exposed TLR9- mice compared to WT mice exposed for the same time (* = p ≤ 0.05)Back to article page