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. 2012 Dec 5;6(2):479–488. doi: 10.1242/dmm.010728

Fig. 5.

Fig. 5.

Response of 4-week-old mice to intranasal administration of carbon black or ambient particulate matter. (A) Number of neutrophils in lung tissue, assessed by immunostaining. (B) Expression of mRNA for TNF-α. Data are mean ± s.e.m. (n=6-8 samples per group). Significant differences are shown as *P<0.05 compared with the naïve group and as #P<0.05 compared with carbon black.