In a study by Koszarnyet al,[26] evaluating the relationship between antithyroid antibody titers and selected parameters of RA activity in 75 consecutive hospitalized patients with RA, significant positive correlations was observed between TPOAb and DAS28, and also TGAb, and both CRP and erythrocyte sedimentation rate (ESR). This evidence concerns the gene CRP and rheumatoid arthritis.