TNF-α, IL-12p40, IL-17A, IL-18, IL-6, IL-23, IL-10, and TGF-β1 were detectable in all RA patients, whereas IL-6, IL-10, and IL-23 had detectability of 89%, 93%, and 83%, respectively. The gene discussed is TGFB1; the disease is rheumatoid arthritis.