Figure 7From: Effect of MWCNT size, carboxylation, and purification on in vitro and in vivo toxicity, inflammation and lung pathology Ex vivo cytokine release from cells recovered in lung lavage at 24 hours post MWCNT instillation. A) IL-6 release from lavaged cells without LPS co-culture. B) TNF-α release from lavaged cells without LPS co-culture. C) IL-1β release from lavaged cells with LPS co-culture (20 ng/ml). Asterisks indicate significance *** at P < 0.001, ** at P < 0.01, * at P < 0.05 compared to Vehicle. Dagger indicates significance †at P < 0.05 compared to the original narrow/short MWCNT variant. n = 3 mice per condition.Back to article page