Abstract
The number of patients with ulcerative colitis (UC) has increased dramatically worldwide, posing a global public health challenge, There has been a suggestion of a potential protective effect of Helicobacter pylori in the development of UC. Virulence factor is an important factor in H. pylori, but high-quality clinical evidence is lacking. This study comprehensively analyzed the clinical characteristics of UC patients with different types of H. pylori infection. Infections with the highly virulent type I H. pylori are found to be negatively correlated with the severity of the disease as well as extraintestinal manifestations, whereas infections with the less virulent type II H. pylori demonstrate a negative correlation solely with disease severity. These results suggest that the virulence factors of H. pylori play a pivotal role in UC. Consequently, virulence factors should be taken into consideration when targeting H. pylori eradication in clinical practice, particularly in UC patients. It is crucial to evaluate the individual benefits to optimize personalized eradication therapies.
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