Research Article

Exposure to Air Pollution Exacerbates Inflammation in Rats with Preexisting COPD

Figure 5

The effect of PM2.5 on inflammatory response in rats with COPD. (a) The total cell count and percentage of neutrophils, eosinophils, and macrophages in the BALF of rats in each group. (b) Level of IL-1β and IL-4 in the lung and GM-CSF in the BALF of rats in each group. IL-1β: Interleukin-1β; IL-4: Interleukin-4; GM-CSF: granulocyte-macrophage colony-stimulating factor. The data are expressed as the (). , .
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