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. Author manuscript; available in PMC: 2014 Aug 10.
Published in final edited form as: Inhal Toxicol. 2013 Mar;25(4):199–210. doi: 10.3109/08958378.2013.775197

Figure 5.

Figure 5

Bioactivity of the four MWCNT in the C57Bl/6 alveolar macrophage model. Cells were exposed to 25, 50, or 100 µg/ml of each MWCNT for 24 h with LPS co-culture (20 ng/ml), and the following endpoints were evaluated: (a) cell viability by MTS assay expressed as mean±SEM percent relative to unstimulated control cultures, (b) IL-1β production expressed as mean±SEM, (c) IL-18 production expressed as mean±SEM. Asterisks indicate *p<0.05, **p<0.01, or ***p<0.001 by Bonferroni’s correction following two-way ANOVA compared to “raw” at each corresponding concentration. Daggers (†) indicate comparison to the 0 µg/ml or baseline condition, with the number indicating the significance level similar to the asterisks. Sample n=3.