Figure 4
From: Disparate oxidant gene expression of airway epithelium compared to alveolar macrophages in smokers
Percentage of the total of 155 oxidant-related genes surveyed that are smoking responsive in small airway epithelium and alveolar macrophages. A. Oxidant-related genes whose expression is up-regulated in healthy smokers compared to healthy nonsmokers. B. Oxidant-related genes whose expression is down-regulated in healthy smokers compared to healthy nonsmokers. For both A and B, the percentage of oxidant-related genes up or down-regulated are presented on the ordinate and the different categories are presented on the abscissa; within each bar is the number of genes modified.