Clinical efficacy of oral mesalazine combined with metronidazole enema in the treatment of patients with ulcerative colitis

Objective To evaluate the effect of oral mesalazine combined with metronidazole enema in the treatment of patients with ulcerative colitis and the impact on interferon-γ(IFN-γ), interleukin-4(IL-4), interleukin-8(IL-8). Methods A total of 80 patients with ulcerative colitis were selected and randomly divided into control group and observation group, 40 cases in each group.The control group was treated with oral mesalazine.The observation group was treated with oral mesalazine and metronidazole retention enema.4 weeks as a course of treatment, the patients were treated for 2 courses.The clinical efficacy, disease activity index(DAI) score before and after treatment, as well as peripheral blood erythrocyte sedimentation rate(ESR), levels of IFN-γ, IL-4, IL-8 changes was compared between the two groups. Results The total effective rate was 90.00% in the control group, which was significantly higher than 75.00% in the control group, the difference was statistically significant(χ2=23.52, P 0.05). After treatment, there were significant decline in each integral of the two groups, the integral of the observation group declined more than those in the control group, the differences were statistically significant(t=15.35, 5.8, 11.25, 14.12, all P 0.05). After treatment, ESR, IL-8, IFN-γ of peripheral blood declined in the two groups, IL-4 was increased, and the changes were more significantly in the control group than those in the control group(t=10.02, 4.70, 10.23, 22.82, all P<0.05). Conclusion Oral mesalazine enema combined with metronidazole enema has significant clinical effect in patients with ulcerative colitis, it is better than treating with oral mesalazine only, and can effectively improve the clinical symptoms and possibly plays a role by regulating IL-8, IFN-γ, IL-4, and it deserves further clinical application. Key words: Colitis, Ulcerative; Mesalamine; Metronidazole