Figure 1. Anti-IFI16 antibody levels are significantly higher in scleroderma patients compared to healthy controls, and associate with a lower DLCO.
(A) Anti-IFI16 antibody levels in patients with scleroderma and healthy controls were assayed by ELISA. Calibrated optical density levels are significantly higher (p=0.01) in patients with scleroderma than healthy controls (n=94 scleroderma, n=47 controls). (B) Amongst scleroderma patients, DLCO is significantly lower (p<0.01) in anti-IFI16 antibody positive patients compared to those without this specificity (antibody positive, n = 17; antibody negative, n = 77).