IL1B and rheumatoid arthritis: The serum levels of anti-inflammatory factors IL1-RA (705 ± 160 vs. 306 ± 36 pg/mL; p = 0.02) and IL-10 (321 ± 27 vs. 251 ± 28 pg/mL; p = 0.02) were significantly greater at day 180 postinfusion in HD group than in LD group.