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Alveolar macrophage gene expression in Th2-high and Th2-low asthma. Mean (+SEM) expression levels of 15-lipoxygenase (ALOX15) and TNF-α as determined by real-time PCR (*P < 0.03 for subjects with Th2-high asthma vs. healthy control subjects). n = 15 healthy control subjects (gray bars); n = 5 patients with Th2-low asthma (blue bars); and n = 9 patients with Th2-high asthma (red bars).
