Abstract:Objective To explore the effect of polyethylene glycol electrolyte oral liquid combined with two methyl silicone oil on intestinal tract cleaning and the level of hs-CRP in serum of patients with ulcerative colitis (UC). Methods A total of 96 patients with UC treated in our hospital from March 2017 to July 2017 were randomly divided into the control group and the experimental group, with 48 cases in each group. The control group took mannitol 250 ml, the observation group took 2?L polyethylene glycol electrolyte oral liquid and 50 ml simethicone. We observed and evaluated two groups of patients' intestinal cleanliness, intestinal cavity bubble degree and side effects. Meanwhile, Elisa test was used to detect serum levels of tumor necrosis factor (TNF-α), interleukin -6 (IL-6) and hs-CRP. Results The number of patients with I degree, II degree in the observation group was 27 and 16, respectively. The cleaning rate of the experimental group was significantly higher than that of the control group (P?< 0.05). The number of patients with grade I and grade II for volume of bubble in the observation group was 31 cases and 14 cases, and the volume of bubble was significantly lower than that of the control group (P?0.05). The level of TNF-α and hs-CRP of the observation group after intestinal cleaning was lower than the control group, and the level of IL-10 was higher than the control group (P?0.05). The total number of adverse reactions in the observation group was 15 times, and the incidence of total adverse reactions was significantly lower than that in the control group (P?0.05). The expression of IL-23 receptor in PBMC of UC patients before treatment was significantly lower than that of healthy people (P?0.05). After treatment, the expression level of IL-23 receptor in the observation group was higher than that of the control group (P?0.05). Conclusions Polyethylene glycol electrolyte oral liquid combined with simethicone has better intestinal cleaning effect for UC patients, inhibits hs-CRP secretion and alleviate the patient's adverse clinical symptoms.