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Induction of (a) IL-6 and (b) IL-8 in BEAS-2B exposed to PM10 organic extracts from the urban site. PMB stands for Polymyxin B sulfate at 10 µg/mL. Lipopolysaccharide (LPS) at 10 µg/mL was used as a positive control. Bars represent mean interleukin protein ± SEM, ∗∗∗ p < 0.001; ∗∗ p < 0.01; ∗ p < 0.05 of three independent experiments. Individual asterisks represent statistical significance compared to DMSO and those over line represent significance between adjacent columns.
