The association between systemic inflammation as measured by calprotectin and autoantibody load in rheumatoid arthritis.
BACKGROUND Plasma calprotectin is a marker of neutrophil activity. Its relation to the clinical phenotype and autoantibodies in rheumatoid arthritis (RA) is only partly understood. We therefore aimed to investigate the association between calprotectin and clinical parameters, CRP, ESR, anti-CCP2 and other anti-modified...