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Fig. 5 | Respiratory Research

Fig. 5

From: Electronic cigarette exposure triggers neutrophil inflammatory responses

Fig. 5

E-cig induced MMP-9 release; brand comparisons. Neutrophils from ten healthy subjects were exposed to brand 1 (0 or 24 mg; (a and d)), brand 2 (0 or 24 mg; (b and e)), brand 3 (16 mg; (c)), or CSE (f) for 6 h. Supernatants were analysed for MMP-9 by ELISA. Data presented as mean ± SEM where *, ** and *** = significant increase compared to unstimulated control (p < 0.05, p < 0.01, and p < 0.001 respectively)

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