Publications by authors named "Reyes Betancourt-Linares"
Multiple infections by EBV, HCMV and Helicobacter pylori are highly frequent in patients with chronic gastritis and gastric cancer from Southwest Mexico: An observational study.
Medicine (Baltimore)
January 2019
Article Synopsis
- The study investigates the relationship between Helicobacter pylori (H. pylori) and two viruses, Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV), and their roles in chronic gastritis and gastric cancer among Mexican patients.
- Results show high frequencies of EBV and HCMV co-infections alongside H. pylori, with up to 92.3% of gastric cancer patients also infected with EBV.
- The findings suggest a potential synergistic effect of these pathogens in promoting chronic inflammation that may lead to gastric cancer, though specific H. pylori genotypes were not linked to EBV or HCMV infections.
Background: The , and genotypes of are associated with gastric pathology. The objectives were to determine the frequency of infection and distribution of the , and genotypes of in patients with gastric ulcer, chronic gastritis and gastric cancer, and to evaluate the association of virulent genotypes with diagnosis.
Methods: We studied 921 patients with symptoms of dyspepsia or with presumptive diagnosis of gastric cancer.
Clarithromycin resistance and prevalence of Helicobacter pylori virulent genotypes in patients from Southern México with chronic gastritis.
Infect Genet Evol
October 2016
In developing countries, clarithromycin resistance and frequency of re-infection are factors that contribute to high prevalence of Helicobacter pylori infection. The aim of this research was determine the prevalence of clarithromycin resistance and its relation with A2142G, A2142C and A2143G mutations in the domain V of the 23S rRNA gene of H. pylori isolates in patients from Southern Mexico with chronic gastritis.
View Article and Find Full Text PDFBackground: The association between proinflammatory cytokine gene polymorphisms and gastric diseases related to Helicobacter pylori varies by population and geographic area.Our objective was to determine if the IL-1B -511 T>C and -31 C>T polymorphisms and H. pylori vacA genotypes are associated with risk of chronic gastritis and gastric ulcer in a Mexican population.
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