Observational studyMedicine2019
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.
Observational study in Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
25 citing papers in PubMed, 3 syntheses or guidelines pooled it, 48 citations in OpenAlex.
- Epstein-Barr Virus and Helicobacter pylori Co-Infection in Gastric Cancer: A Systematic Review and Meta-Analysis of Case-Control and Cross-Sectional Studies.Asian Pacific journal of cancer prevention : APJCP · 2026Pooled it
- Gastric cancer burden and regional disparities among Helicobacter pylori-positive patients in the Americas: a systematic review and meta-analysis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Pooled it
- Associations Between Gastric Cancer Risk and Virus Infection Other Than Epstein-Barr Virus: A Systematic Review and Meta-analysis Based on Epidemiological Studies.Clinical and translational gastroenterology · 2020Pooled it
- Article
- Diagnostic value of neutrophil to lymphocyte ratio in identifying gastritis in children with chronic abdominal pain in northern Iran.BMC research notes · 2025Article
- Human cytomegalovirus tegument protein UL23 promotes gastric cancer immune evasion by facilitating PD-L1 transcription.Molecular medicine (Cambridge, Mass.) · 2025Article
- Mechanisms of Viral Oncogenesis: DNA and RNA Viruses in Human Cancer.Journal of inflammation research · 2025Review
- Possible Role of Cytomegalovirus in Gastric Cancer Development and Recurrent Macrolide-ResistantMicroorganisms · 2024Review
- The Unmasking of Cytomegalovirus as an Accomplice toACG case reports journal · 2023Article
- Detection of Human Boca Virus in Gastric Adenocarcinoma.Middle East journal of digestive diseases · 2023Article
- Article
- Mutational landscape of gastric adenocarcinoma in Latin America: A genetic approach for precision medicine.Genes & diseases · 2022Review
- Kinases and therapeutics in pathogen mediated gastric cancer.Molecular biology reports · 2022Review
- Review
- Role of Gastric Microorganisms Other thanBioMed research international · 2022Review
- Higher viral load of Epstein-Barr virus in gastric cancer compared with non-cancerous gastroduodenal tissues.Le infezioni in medicina · 2022Article
- Epstein-Barr Virus is Associated with Gastric Cancer Precursor: Atrophic Gastritis.International journal of medical sciences · 2022Article
- Article
- Review
- Human cytomegalovirus protein UL136 activates the IL-6/STAT3 signal through MiR-138 and MiR-34c in gastric cancer cells.International journal of clinical oncology · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The chronic inflammation and damage to the gastric epithelium induced by Helicobacter pylori (H. pylori) are the main risk factors for gastric cancer development. Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) induce chronic inflammation and have been found in gastric tumors. The objectives this observational study were to determine the frequency of multiple infections by Helicobacter pylori, Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) and to relate the infection by EBV and HCMV with H. pylori vacA/cagA genotypes in patients with chronic gastritis or gastric cancer. DNA from H. pylori, EBV and HCMV was detected by PCR in biopsies from 106 Mexican patients with chronic gastritis and 32 from gastric cancer. The cagA status and the vacA genotypes of H. pylori were determined by PCR. In chronic gastritis and gastric cancer EBV was found in 69.8% and 87.5%, HCMV in 52.8% and 53.1%, and H. pylori in 48.1% and 40.6%, respectively. In chronic gastritis, 53% of H. pylori patients were EBV and 33% were both EBV/HCMV; in gastric cancer, 92.3% of H. pylori-infected individuals were EBV and 46.1% were EVB/HCMV. All the intestinal- and mixed-type tumors and the 83.3% of diffuse-type tumors were EBV. No significant differences were found between single infections or coinfections with the diagnosis or the cancer type. The H. pylori genotypes were not related to EBV or HCMV infection. The frequency of dual infections by H. pylori, EBV and HCMV is higher in patients from southwest Mexico than other populations. It is likely that these pathogens act synergistically to induce inflammation and gastric cancer.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.