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Fig. 1 | Arthritis Research & Therapy

Fig. 1

From: Circulating secretory IgA antibodies against cyclic citrullinated peptides in early rheumatoid arthritis associate with inflammatory activity and smoking

Fig. 1

Occurrence of immunoglobulin A (IgA) and secretory IgA (SIgA) anti-cyclic citrullinated protein (anti-CCP) antibodies in patients with early rheumatoid arthritis (RA) testing positive (a) or negative (b) for IgG anti-CCP. SIgA reactivity to CCP and cyclic arginine peptide (CAP) in ten patients with RA (c), and SIgA anti-CCP levels in patients with RA and control subjects (d). AU arbitrary units

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Arthritis Research & Therapy

ISSN: 1478-6362

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