Based on the adjusted p values, the 10 most important gene probes were associated with active ulcerative colitis, including SLC6A14 (219795_at), REG1B (205886_at), REG1A (209752_at), LPCAT1 (201818_at), DUOXA2 (230615_at), CD55 (201926_s_at), C4BPB (208209_a_at), and KCND3 (213832_at), and associated with healthy controls, including HMGCS2 (240110_at) and DPP10-AS1 (236351_at). This evidence concerns the gene CD55 and ulcerative colitis.