Fig. 1From: The overexpression of peroxiredoxin-4 affects the progression of idiopathic pulmonary fibrosisSerum PRDX4 protein, KL-6, SP-D and LDH levels in healthy volunteers and patients with S-IPF and AE-IPF. a, b, c, and d) Serum PRDX4 protein, KL-6, SP-D and LDH levels were significantly higher in S-IPF patients than those in healthy volunteers. In addition, these levels in AE-IPF patients were significantly higher than those in patients with S-IPFBack to article page