Helicobacter pylori (H. pylori) infection induces inflammation of the gastric mucosa, which
may progress to precancerous lesions leading to gastric cancer. Pathological determinism is …

We have examined the prevalence of gene cagA and vacA alleles in 129 patients, 69 with
gastritis and 60 with peptic ulcer diseases from North Brazil and their relation with …

Purpose: The purpose of this research was to analyze cagA and vacA genotypes status in H.
pylori isolates and relationship with clinical outcomes. Methods: Gastric biopsy specimens …

Background Helicobacter pylori-associated gastroduodenal diseases depends on host
characteristics, environmental conditions and bacterial virulence factors, such as cagA, vacA …

Results: The prevalence of vacA-positive strains in ulcerative patients was significantly more
than that in non ulcerative patients (P< 0.05). RFLP analysis revealed two different patterns …

The outcome of Helicobacter pylori infection has been associated with specific virulence-
associated bacterial genotypes. The present study aimed to investigate the gastric …

The aims of our work were to determine the presence of the cag pathogenicity-island (cag
PAI) and other virulence genes of Helicobacter pylori recovered from patients with gastritis …

Introduction: H. pylori has been detected in patients with hepatobiliary diseases. It is
currently unclear whether the H. pylori detected in hepatobiliary patients are genetically …

Virulence factors of Helicobacter pylori can predict the development of different
gastroduodenal diseases. There are scarce reports in Cuba about H. pylori isolates …

Background Allelic variation of the virulence genes, vacA and cagA, as the most important
virulence associated genes play an important role in the pathogenesis of severe …