Helicobacter Pylori Infection Correlates with Lower Prevalence and Subsequent Incidence of Crohn’s Disease

Abstract

According to some researchs, Crohn’s disease (CD) and Ulcerative colitis (UC), two chronic inflammatory bowel illnesses, may be protected against Helicobacter pylori infection. Many case–control studies have revealed that individuals with CD and UC had lower H. pylori prevalence than healthy controls. However, whether or not H. pylori plays a protective role in the development of Crohn’s disease is debatable. CD was more common in H. pylori-negative individuals than in H. pylori-positive patients. After eradication of H. pylori, the CD was more common in the H. pylori-negative group than in the H. pylori-positive group over the previous research follow-up period. Although it has been strongly indicated in previous studies that H. pylori infection plays a significant role and triggers autoimmune reactions and may be implicated in the pathogenesis of autoimmune diseases, the role of H. pylori in inflammatory bowel disease, including Crohn’s disease, is unclear.