Evidence map›Paper›PMID 20614477›Full record

ReviewWorld journal of gastroenterology2010

Helicobacter pylori and gastric cancer in the Middle East: a new enigma?

Nawfal R Hussein

Open access · hybridAbstract readEditorialReview
In one paragraph

Review in World journal of gastroenterology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
6.2field-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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 82 citations in OpenAlex.

  1. Pooled it
  2. Helicobacter pylori eradication in the face of escalating anti-microbial resistance: Geographic heterogeneity and emerging treatment strategies.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2026
    Review
  3. Article
  4. Allelic Variation ofMicroorganisms · 2025
    Article
  5. Article
  6. A study of prevalence and risk factors forArchives of Razi Institute · 2024
    Article
  7. Article
  8. Study ofCancers · 2023
    Article
  9. Review
  10. Review
  11. Demographic Profile of Gastric Cancer in Afghanistan.Indian journal of surgical oncology · 2020
    Article
  12. Article
  13. Gastric cancer & prospects of cancer in Saudi Arabia peninsula.Saudi journal of biological sciences · 2019
    Review
  14. Article
  15. Article
  16. Trends and Risk Factors of Gastric Cancer in Iran (2005-2010).International journal of preventive medicine · 2019
    Article
  17. Article
  18. Article
  19. Article
  20. 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

1 author at 1 institution in 1 country.

Nawfal R HusseinInstitute of Infection, Immunity and Inflammation and the Centre for Biomolecular Sciences, University of Nottingham, Nottingham, NG7 2RD, UK. nawfal.hussein@nottingham.ac.uk
University of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Middle East is the home of ethnic groups from three main backgrounds: Semitic (Arabs and Jews), Indo-European (Persians and Kurdish) and Turkic (Turkish and Turkmens). Its geographic location, which has been under continuous influences from Asia, Europe and Africa, has made it an ideal site for epidemiological studies on Helicobacter pylori (H. pylori) infection and genotyping. The gastric cancer rate differs in this region from very high in Iran (26.1/10(5)) to low in Israel (12.5/10(5)) and very low in Egypt (3.4/10(5)). Epidemiological studies showed that the prevalence of H. pylori is almost similar in those countries with a high level of infection in childhood. Importantly, the frequency of vacA s1 and m1 regions and cagA+ genotypes were higher in non Semitic populations who inhabit the North than Semitic populations, the inhabitants of Southern parts of the Middle East. H. pylori infection prevalence, distribution pattern of virulence factors, diet and smoking could not have explained the difference in cancer rate. This reflects the multifactorial aetiology of gastric cancer and suggests that H. pylori infection does not always directly correlate with the risk for gastrointestinal disease, such as gastric cancer. Further detailed investigations and international comparative studies of each risk factor need to be performed to investigate whether this represents a true enigma.

Indexed as

Antigens, BacterialBacterial ProteinsDietGenes, BacterialHelicobacter InfectionsHelicobacter pyloriHumansIncidenceMiddle EastPrevalenceRisk FactorsSmokingStomach NeoplasmsVirulenceAntigens, BacterialBacterial ProteinscagA protein, Helicobacter pyloriVacA protein, Helicobacter pylori

Identifiers

PMID20614477
PMCPMC2900713
OpenAlexW2155135894

What OpenQuestion holds

Textmetadata
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.