Positive correlations were found between the level of GITRL in the blood serum and the parameters of inflammation (C-reactive protein (CRP), the erythrocyte sedimentation rate, and the production of autoAbs (IgM and IgG rheumatoid factor (RF)), which may indicate the role of GITRL in the development of RA [81]. The gene discussed is CD40LG; the disease is rheumatoid arthritis.