Figure 7
From: Bronchiolar chemokine expression is different after single versus repeated cigarette smoke exposure
Long-term of CS exposure induces inflammatory cell recruitment. Mice were exposed to CS (black bars) or to air (hatched bars) for 4, 12, 18 and 24 weeks, and the cell content in the BAL fluid was identified as described in Materials and Methods. Data represent the average number of total cells (A) and neutrophils (B) per ml BAL fluid ± SEM from eight mice. The data set of Fig. 3A and 3C are also included for comparison. Statistical significance: * = p < 0.05; ** = p < 0.01; *** = p < 0.001 vs. before CS exposure at day 0.