Figure 4.

Heat map representing lung gene expression data from 4 h and 10 day studies. Heat maps were generated to show significant changes in lung gene expression. Genes were grouped according to function and color coded according to the degree in which they were altered. Shades of red and green indicate increases and decreases in the gene versus control mice, respectively, and the brighter the color, the greater the change. Black represents no significant change in gene expression and the scale on the right denotes the range of values for each color (n = 8/group, P ≤ 0.05).