Methods A total of 213 FD patients diagnosed by Rome III criteria were consecutively
enrolled. H. pylori tests and gastritis grade by the Sydney system were performed before and …

Helicobacter pylori (H. pylori) has been recognized as a cause of gastrointestinal diseases
and progress of the pathology of gastrointestinal diseases is related to the genotype of H …

Aims: This study aims to evaluate the prevalence of H. pylori cagA and vacA genotypes in
our region and to determine their relationship to the severity of the lesions that they cause …

Abstract Background Antibiotic resistance in Helicobacter pylori contributes to failure in
eradicating the infection and is most often due to point and missense mutations in a few key …

Aim. The aim of this study was to identify the presence of H. pylori in biopsy specimens from
symptomatic patients by PCR. In addition, the rate of cagA, vacA, iceA1, and iceA2 virulence …

ABSTRACT BACKGROUND: Helicobacter pylori (H. pylori) is a major human pathogen that
is responsible for various gastroduodenal diseases. We investigated the prevalence of H …

Epidemiological studies have reported the relationship between vacuolating cytotoxin A
(vacA) s-/m-region genotypes and duodenal ulcer (DU), but the results remained …

Helicobacter pylori has been strongly associated with gastritis, gastric and duodenal ulcers,
and it is a risk factor for gastric cancer. Two major virulence factors of H. pylori have been …

Background-The mechanisms whereby Helicobacter pylori produces different pathological
manifestations in the stomach and duodenum are not fully understood. Considering the …

Helicobacter pylori has several virulance factor ie VacA, CagA, BabA, SabA, AlpA, AlpB and
etc. VacA has several polymorphic region in the nucleotide sequence such as s, m, i, d and …