Evidence map›Paper›PMID 25945344›Full record

ArticleBioMed research international2015

Prevalence of Helicobacter pylori vacA, cagA, and iceA Genotypes in Cuban Patients with Upper Gastrointestinal Diseases.

Onelkis Feliciano, Oderay Gutierrez, Lidunka Valdés, Trini Fragoso, Ana Maria Calderin, Antonio Eduardo Valdes, Rafael Llanes

Open access · hybridAbstract read
In one paragraph

Article in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
4.1field-weighted citation impact, top 6% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Biomolecules · 2026
    Review
  4. Article
  5. Helicobacter pylori cagA, vacA, and iceA genotypes and clinical outcomes: a cross-sectional study in central Vietnam.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Pathogenomics of Helicobacter pylori.Current topics in microbiology and immunology · 2023
    Review
  10. Article
  11. Article
  12. Genotyping ofInternational journal of microbiology · 2021
    Article
  13. Cells · 2020
    Review
  14. Article
  15. Article
  16. Can bacterial virulence factors predict antibiotic resistantWorld journal of gastroenterology · 2018
    Article
  17. Determination ofMedical journal of the Islamic Republic of Iran · 2017
    Article
  18. Article
  19. Frontiers in cellular and infection microbiology · 2017
    Article
  20. Role ofWorld journal of gastroenterology · 2016
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Onelkis FelicianoMicrobiology and Clinical Branches, Tropical Medicine Institute "Pedro Kourí", Avenida Novia del Mediodía Km 6 1/2, P.O. Box 601, Marianao 13, Havana, Cuba.ORCID 0000-0002-3976-2147
Oderay GutierrezMicrobiology and Clinical Branches, Tropical Medicine Institute "Pedro Kourí", Avenida Novia del Mediodía Km 6 1/2, P.O. Box 601, Marianao 13, Havana, Cuba.
Lidunka ValdésMicrobiology and Clinical Branches, Tropical Medicine Institute "Pedro Kourí", Avenida Novia del Mediodía Km 6 1/2, P.O. Box 601, Marianao 13, Havana, Cuba.
Trini FragosoEndoscopy Department, Pedro Borrás Hospital, Havana, Cuba.
Ana Maria CalderinMicrobiology and Clinical Branches, Tropical Medicine Institute "Pedro Kourí", Avenida Novia del Mediodía Km 6 1/2, P.O. Box 601, Marianao 13, Havana, Cuba.
Antonio Eduardo ValdesMicrobiology and Clinical Branches, Tropical Medicine Institute "Pedro Kourí", Avenida Novia del Mediodía Km 6 1/2, P.O. Box 601, Marianao 13, Havana, Cuba.
Rafael LlanesMicrobiology and Clinical Branches, Tropical Medicine Institute "Pedro Kourí", Avenida Novia del Mediodía Km 6 1/2, P.O. Box 601, Marianao 13, Havana, Cuba.
Instituto de Medicina Tropical “Pedro Kourí” · CU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Virulence factors of Helicobacter pylori can predict the development of different gastroduodenal diseases. There are scarce reports in Cuba about H. pylori isolates genotyping. The aim of the present investigation was to identify allelic variation of the virulence genes vacA, cagA, and iceA in sixty-eight patients diagnosed as H. pylori positive by culture. In seven out of 68 patients, strains from both gastric regions were obtained and considered independent. DNA was extracted from all the H. pylori strains and evaluated by PCR-genotyping. The vacA s1 allele, cagA gene, and iceA2 allele were the most prevalent (72.0%, 56.0%, and 57.3%, respectively). Alleles from m-region showed a similar frequency as s1a and s1b subtypes. The presence of multiple H. pylori genotypes in a single biopsy and two gastric region specimens were found. Significant statistical association was observed between iceA2 allele and patients with non-peptic ulcer dyspepsia (NUD) (P = 0.037) as well as virulence genotypes (s1, s1m2) and patients over 40 years old (P < 0.05). In conclusion, the results demonstrated a high prevalence of H. pylori virulent genotypes in Cuban patients over 40 years old while iceA2 alleles demonstrated a good specificity in patients with NUD.

Indexed as

AdolescentAdultAgedAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsChildCubaFemaleGastrointestinal DiseasesGenotypeHelicobacter InfectionsHelicobacter pyloriHumansMaleMiddle AgedAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinscagA protein, Helicobacter pyloriice nucleation proteinVacA protein, Helicobacter pylori

Identifiers

PMID25945344
PMCPMC4402555
OpenAlexW1996520021

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.