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IL-8 in nasal wash from control subjects and COPD patients pre- and post-therapy with antioxidant drug. IL-8 protein measured by ELISA in nasal wash from Controls and COPD patients. Results are reported as pg/mL. *p < 0.05 Mann-Whitney test (A). Comparison of IL-8 levels pre-and post-nutraceutical treatment intra-patient. Results are reported as pg/mL. *p-value < 0.05 Wilcoxon test (B).
