THE PREVALENCE OF THE CAGA GENE OF HELICOBACTER PYLORI AND ITS ASSOCIATION WITH GASTRODUODENAL DISEASES
Main Article Content
Abstract
Background: Helicobacter pylori is the leading cause of gastroduodenal diseases. The CagA protein, which is encoded by the cagA gene, is the well-studied toxin of H. pylori. Objectives: (1) To determine the prevalence of the cagA gene of H. pylori isolates from patients with gastroduodenal diseases, (2) to investigate the association between the cagA gene and gastroduodenal diseases. Materials and methods: The study was conducted on 173 positive – H. pylori patients with gastroduodenal disease. H. pylori strains were isolated from gastric mucosa biopsy specimens. The polymerase chain reaction technique was performed to identify the cagA gene. Results: The cagA gene was detected in 83.8% of H. pylori isolates. After adjusting for age and gender, the multivariable logistic regression analysis showed that the H. pylori strain carrying cagA-positive gene was associated with an increased risk for peptic ulcers (aOR = 5.49, 95% CI: 1.06-28.37, p = 0.042). Conclusion: The percentage of H. pylori strains carrying the cagA gene is great. The cagA gene was related to an increased risk for peptic ulcers.
Article Details
Keywords
Helicobacter pylori, cagA gene, gastroduodenal diseases
References
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