Linking Endotoxins, African Dust PM₁₀ and Asthma in an Urban and Rural Environment of Puerto Rico

Figure 6

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, ; ; of three independent experiments. Individual asterisks represent statistical significance compared to DMSO and those over line represent significance between adjacent columns.

(a)

(b)