Concentration of cytokines, RANTES, and endotoxin in MEEs in adult cases. Concentrations of MIF, IL-1β, TNF-α, RANTES, and endotoxin were divided by the concentration of total protein of each sample for standardization. MIF showed a significantly higher concentration than IL-1β (P < 0.001), TNF-α (P < 0.001), RANTES (P < 0.001), and endotoxin (P < 0.001) (nonparametrical Mann-Whitney U test).