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Figure 2 | Arthritis Research & Therapy

Figure 2

From: Periodontitis in established rheumatoid arthritis patients: a cross-sectional clinical, microbiological and serological study

Figure 2

(A) IgM-RF and ACPA reactivity and (B) reactivity against five citrullinated (cit.) peptides in patients with rheumatoid arthritis and no (a), moderate (b), or severe (c) periodontitis. No significant differences were observed. ΔOD, optical density of the citrullinated form minus the native form of the peptide; ACPA, anti-citrullinated protein antibody; IgM-RF, immunoglobulin M-rheumatoid factor.

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