Moreover, increased lTSLP expression was correlated with DAS28 and ESR, which are reliable biochemical indicators of the acute phase reaction in RA, yet not with other laboratory parameters including RF, CRP, C3, C4, IgG, IgA, IgM, Anti-CCP, Anu A, Anti-dsDNA, and G6PI. The gene discussed is C4A; the disease is rheumatoid arthritis.