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RT-PCR of the NRF2 gene in alveolar macrophages from the control lung segment (Baseline) and at 24 h after allergen challenge (Allergen) in atopic asthmatics in vivo. NRF2 expression is normalized to expression of GADPH. Red, green, and purple, colors indicate various allergens used for challenge, cat, dust mite, and ryegrass, respectively.
