Evidence map›Paper›PMID 24256489›Full record

SynthesisBMC infectious diseases2013

Association of presence/absence and on/off patterns of Helicobacter pylori oipA gene with peptic ulcer disease and gastric cancer risks: a meta-analysis.

Jingwei Liu, Caiyun He, Moye Chen, Zhenning Wang, Chengzhong Xing, Yuan Yuan

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in BMC infectious diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 3 pooled it
2.3field-weighted citation impact, top 12% 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

34 citing papers in PubMed, 3 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Microbiology and molecular biology reviews : MMBR · 2026
    Review
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  6. Pivotal role ofFrontiers in medicine · 2024
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  7. The immunopathogenesis ofFrontiers in microbiology · 2024
    Review
  8. Study ofCancers · 2023
    Article
  9. Role of non-World journal of gastroenterology · 2023
    Review
  10. Article
  11. Article
  12. Helicobacter pylori virulence dupA gene: risk factor or protective factor?Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2021
    Article
  13. Article
  14. Overview ofGut and liver · 2021
    Review
  15. World journal of gastrointestinal oncology · 2021
    Review
  16. Review
  17. World journal of gastroenterology · 2021
    Review
  18. Microbiome in human cancers.Access microbiology · 2021
    Review
  19. Frontiers in microbiology · 2021
    Review
  20. Virulence of Helicobacter pylori outer membrane proteins: an updated review.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020
    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

6 authors at 1 institution in 1 country.

Jingwei LiuTumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China. xcz1966@126.com.
Caiyun He
Moye Chen
Zhenning Wang
Chengzhong Xing
Yuan Yuan
China Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are increasing studies examining the relationship between the status of H. pylori oipA gene and peptic ulcer disease (PUD) and gastric cancer (GC) but the results turn out to be controversial. We attempted to clarify whether oipA gene status is linked with PUD and/or GC risks.

methodsA systematically literature search was performed through four electronic databases. According to the specific inclusion and exclusion criteria, seven articles were ultimately available for the meta-analysis of oipA presence/absence with PUD and GC, and eleven articles were included for the meta-analysis of oipA on/off status with PUD and GC.

resultsFor the on/off functional status analysis of oipA gene, the "on" status showed significant associations with increased risks of PUD (OR = 3.97, 95% CI: 2.89, 5.45; P < 0.001) and GC (OR = 2.43, 95% CI: 1.45, 4.07; P = 0.001) compared with gastritis and functional dyspepsia controls. Results of the homogeneity test indicated different effects of oipA "on" status on PUD risk between children and adult subgroups and on GC risk between PCR-sequencing and immunoblot subgroups. For the presence/absence analysis of oipA gene, we found null association of the presence of oipA gene with the risks of PUD (OR = 1.93, 95% CI: 0.60, 6.25; P = 0.278) and GC (OR = 2.09, 95% CI: 0.51, 8.66; P = 0.308) compared with gastritis and functional dyspepsia controls.

conclusionsTo be concluded, when oipA exists, the functional "on" status of this gene showed association with increased risks for PUD and GC compared with gastritis and FD controls. However, merely investigating the presence/absence of oipA would overlook the importance of its functional on/off status and would not be reliable to predict risks of PUD and GC. Further large-scale and well-designed studies concerning on/off status of oipA are required to confirm our meta-analysis results.

Indexed as

Bacterial Outer Membrane ProteinsGenotypeHelicobacter InfectionsHelicobacter pyloriHumansPeptic UlcerPolymerase Chain ReactionRisk FactorsStomach NeoplasmsBacterial Outer Membrane ProteinsOipA protein, Helicobacter pylori

Identifiers

PMID24256489
PMCPMC4225565
OpenAlexW2083370573

What OpenQuestion holds

Textmetadata
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.