IL10 and colitis: In 12 patients in remission, 15 with mild‐moderately active disease and 6 with severe colitis, concentrations of interleukin‐17, IL10, interferon‐γ, interleukin‐8 and interleukin‐6, but not tumor necrosis factor‐α or interleukin‐12p70, significantly reflected disease activity.