Objective To observe the effect of electroacupuncture(EA) of “Shangjuxu”(ST37) and “Tianshu”(ST25) on colonic mucosal injury and activities of nuclear factor-κB(NF-κB)/Nod-like receptor family, pyrin domain-containing 3(NLRP3) inflammasome signaling in the colonic tissue in rats with ulcerative colitis(UC), so as to explore its mechanisms underlying improvement of UC. Methods Male SD rats were randomly divided into blank, model, medication and EA groups, with 12 rats in each group. The UC model was established by enema of 2-4-6 trinitrobe...