International Journal of Medical Sciences

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22 October 2017

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Int J Med Sci 2013; 10(11):1479-1484. doi:10.7150/ijms.6934

Research Paper

Association between Helicobacter Pylori Infection and Ulcerative Colitis-A Case Control Study from China

Xi Jin*✉, Yi-peng Chen*, Shao-hua Chen, Zun Xiang

Department of Gastroenterology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, P.R. China.
* These authors contribute equally to this paper as the first author.

Abstract

Aims To investigate the association between H. pylori infection and UC prevalence in China. Materials and Methods Subjects were selected from patients admitted in Department of Gastroenterology for abdominal pain, hematochezia, diarrhea and other GI symptoms during 2009-2012. UC diagnosis was based on both colonoscopy and biopsy. H. pylori detection was based on 14C urea breath test (UBT) and biopsy sample culture. Patients' demographic, anthropometric and serologic data were selected. H. pylori infection rate was compared between UC and control groups, followed by a subgroup analysis on the association between H. pylori infection and extent and severity degree of UC. Results Totally, 153 and 121 patients were selected and divided into UC and control groups. There were no significant differences in age, gender, BMI, hypertension and diabetes. However, smoking history was significantly lower while WBC and CRP levels were significantly higher in UC group. The H. pylori infection rate in UC group was 30.5%, significantly lower than that of 57.0% in control group. The H. pylori infection rate in UC of left colon and whole colon were 33,9% and 24.2% (p<0.05 between them), both significantly lower than that in control group. In addition, the H. pylori infection rates in mild, moderate and severe UC subgroups were 37.8%, 32.3% and 22.2% (p>0.05 among them), all of which were significantly lower than that in control group. Conclusion We reported a significantly lower H. pylori infection rate in UC patients with different extent and severity degree, which provides evidence for bacteria involvement in UC pathogenesis and reminder clinicians to keep cautious in considering H. pylori eradication in UC patients.

Keywords: ulcerative colitis, helicobacter pylori, urea breath test.

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How to cite this article:
Jin X, Chen Yp, Chen Sh, Xiang Z. Association between Helicobacter Pylori Infection and Ulcerative Colitis-A Case Control Study from China. Int J Med Sci 2013; 10(11):1479-1484. doi:10.7150/ijms.6934. Available from http://www.medsci.org/v10p1479.htm