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Associations among FEV1, DJ-1, Nrf-2 and VDR in COPD patients. (A-C) Associations of FEV1 and pulmonary DJ-1, VDR and Nrf-2 were analyzed in COPD patients. (A) FEV1 vs DJ-1. (B) FEV1 vs Nrf-2. (C) FEV1 vs VDR. (D-F) Associations among DJ-1, VDR and Nrf-2 in lung tissues of COPD patients. (D) Nrf-2 vs DJ-1. (E) VDR vs DJ-1. (F) VDR vs Nrf-2.
