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. 2017 Feb 28;12(2):e0173158. doi: 10.1371/journal.pone.0173158

Fig 3. Cytokine levels in BALF following the 2nd exposure to PM.

Fig 3

A: IFN-γ. B: IL-5. C: IL-6. D: IL-13. E: IL-17A. F: TNF-α. The mice were exposed to 100 μL aliquots of solutions by intratracheal instillation on days 0 and 7 as described in the Materials and Methods section. PBS served as a vehicle control. The data are presented as the mean ± SEM (n = 5 per treatment group). *p<0.05 compared to the PBS control group; #p<0.05 compared to the other groups at the same dose.