Fig. 6.

Exposure to diesel exhaust particles results in an increased relative abundance of Proteobacteria. a Quantification in log scale of (a) Eubacteria (total bacteria), b Firmicutes, c Bacteroidetes and d Proteobacteria within the lungs of C57Bl/6 wildtype mice on either control (LF) or high-fat (HF) diet exposed to either saline (control) or diesel exhaust particles (DEP – 35 μg PM) twice a week for a total of 30 days by qPCR. e 100% stacked columns representing the percentages of major lung phyla. Data are depicted as mean ± SEM with *p < 0.05 compared to LF Control, ‡p < 0.05 compared to LF DEP by two way ANOVA