Evidence map›Paper›PMID 23267382›Full record

ArticleJournal of research in medical sciences : the official journal of Isfahan University of Medical Sciences2012

Helicobacter pylori in Iran: A systematic review on the association of genotypes and gastroduodenal diseases.

Elham Hosseini, Farkhondeh Poursina, Tom Van de Wiele, Hajieh Ghasemian Safaei, Peyman Adibi

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In one paragraph

Article in Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
5.9field-weighted citation impact, top 4% 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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Metabolism open · 2025
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  4. Journal of experimental pharmacology · 2025
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  6. A review for non-antibiotic treatment ofFrontiers in microbiology · 2024
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  8. Prevalence ofMiddle East journal of digestive diseases · 2021
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  10. Clinical and laboratory importance of detectingPrzeglad gastroenterologiczny · 2020
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  12. Determination of optimal time for reading of rapid urease test diagnosis ofGastroenterology and hepatology from bed to bench · 2020
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  13. High Prevalence of Antibiotic Resistance in IranianJournal of clinical medicine · 2019
    Article
  14. Article
  15. The Interaction ofAdvanced biomedical research · 2019
    Review
  16. Article
  17. Association ofMedical journal of the Islamic Republic of Iran · 2018
    Article
  18. Determination ofMedical journal of the Islamic Republic of Iran · 2017
    Article
  19. Article
  20. Article
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

5 authors at 2 institutions in 2 countries.

Elham HosseiniLaboratory of Microbial Ecology and Technology (LabMET), Ghent University, B-9000 Ghent, Belgium.
Farkhondeh Poursina
Tom Van de Wiele
Hajieh Ghasemian Safaei
Peyman Adibi
Isfahan University of Medical Sciences · IRGhent University · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHelicobacter pylori (H. pylori) infection is known as a major etiologic factor for a variety of gastroduodenal diseases. In Iran, with a high rate of H. pylori infection close to 90%, numerous studies have revealed many aspects of interaction between the bacterium, mucosal surface and induction of disease outcome. The organism is genetically diverse and several virulence factors are attributed to the more virulent strains. The well-characterized virulence factors of H. pylori are cytotoxin associated gene A and vacuolating cytotoxin gene A. The distribution pattern of H. pylori genotypes and its association with disease status varies geographically. The present review focused on the virulence factors and genotyping of H. pylori in relation to gastroduodenal disorders in different regions of Iran.

methodsIn total, 398 studies were reported on different aspects related to H. pylori in our electronic search from 1995-2011. H. pylori infection and its virulence factors in association with disease status were investigated in 159 reports. Looking specifically at the gastrointestinal tract disorders, the most relevant reports including 37 papers were selected.

resultsWe found no correlation of cagA genotype and disease status in the majority of studies, whereas vacA was demonstrated as a useful marker in predicting the disease outcome. The results of reports on other virulence factors of H. pylori such as blood group antigen-binding adhesion gene A, the induced by contact with epithelium gene A, the outer inflammatory protein A, the duodenal ulcer promoting gene A, and Helicobacter outer membrane gene and their relation with disease status were contradictory.

conclusionsAlthough different markers of H. pylori were emphasized as useful when predicting disease outcomes in some studies, the inconsistent researches and the scarcity of data made any conclusion or even comparison impossible. Considering the gap of information observed during our search relating to genotyping and other aspects of H. pylori infection, further investigations are suggested.

Indexed as

cagAGastroduodenalGenotypingH. pyloriIranvacAVirulence

Identifiers

PMID23267382
PMCPMC3527048
OpenAlexW1909305303

What OpenQuestion holds

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LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

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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.