Background: Helicobacter pylori (H. pylori) infection is known as a major etiologic factor for a
variety of gastroduodenal diseases. In Iran, with a high rate of H. pylori infection close to …

Helicobacter pylori (H. pylori) usually colonizes the gastric mucosa of more than 50% of the
human population, causing an infection that may appear in early childhood and can persist …

Background Helicobacter pylori has been strongly associated with chronic gastritis, peptic
and duodenal ulcers, and it is a risk factor for gastric cancer. Three major virulence factors of …

While several distinct virulence factors of Helicobacter pylori have been shown to be
associated with different clinical outcomes, there is still much to learn about the role of …

Abstract Background and Aims: The 3′ region of the cagA gene, the most well‐known
virulence factor of Helicobacter pylori, contains Glu‐Pro‐Ile‐Tyr‐Ala (EPIYA) motifs. Four …

This study was conducted to assess the relationship between occurrence of gastric cancer
and peptic ulcer, and the presence of H. pylori cagA gene and anti-CagA IgG, and to …

Abstract Background Nearly all Taiwanese H. pylori stains are cagA-genopositive and
encode CagA protein. In this study, we evaluated whether different intensity of tyrosine …

Background Numerous proteins have been proposed as virulence factors for the gram
negative gastric bacterium Helicobacter pylori but only for a few this has unequivocally been …

The severity of Helicobacter pylori-related diseases varies greatly among infected
individuals and seems to be influenced by both host and bacterial factors. Infection with a …

Abstract Background and Aim Helicobacter pylori plays an important role in causing
digestive diseases. The purpose of this study is to investigate Helicobacter pylori in COVID …