Quantification of total cells and differentiated cells in the airways. Sham and BI total cell count increases with LPS instillation. A) The increase of total cell number in LPS-mediated lung is decreased by BI significantly. B) LPS instillation significantly increases the total cell count, and BI decreases such effect. C) Differential cell analysis shows that BI further reduces macrophage numbers. D) Percentage of macrophages is similar between sham and BI, and LPS and BI + LPS. E) Neutrophil count drastically increases during LPS-mediated lung inflammation, and BI decreases the LPS-mediated increase in neutrophil count. F) LPS instillation increases neutrophil percentage, and BI decreases LPS-mediated increase in neutrophil percentage; n = 4 for sham, n = 5 for BI, LPS, and BI + LPS. +, mean. *P < 0.05, **P < 0.01, ***P < 0.001.