Fig. 3From: The biological activity of serum bacterial lipopolysaccharides associates with disease activity and likelihood of achieving remission in patients with rheumatoid arthritisPrincipal component analysis of patients with chronic rheumatoid arthritis at the 12-month follow-up visit including LPS bioactivity and the concentrations of LBP, SAA, hsCRP, E-Selectin, YKL-40, and IL-6 in sera demonstrates clustering according to methotrexate useBack to article page