Evidence map›Paper›PMID 25063579›Full record

SynthesisMolecular biology reports2014

Association between vacA genotypes and the risk of duodenal ulcer: a meta-analysis.

Bei-Bei Zhang, Yong Li, Xue-Qiang Liu, Pei-Jian Wang, Bo Yang, Dong-Lin Bian

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Molecular biology reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 25% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Histology and histopathology · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Diagnostic methods for Helicobacter pylori infection: ideals, options, and limitations.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019
    Review
  12. Peptic Ulcer Disease andMissouri medicine
    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 2 institutions in 1 country.

Bei-Bei ZhangDepartment of Medical Affairs, General Hospital of PLA Chengdu Military Area Command, Chengdu, 610083, China, zbb1983918@163.com.
Yong Li
Xue-Qiang Liu
Pei-Jian Wang
Bo Yang
Dong-Lin Bian
Chengdu Military General Hospital · CNFirst Affiliated Hospital of Chengdu Medical College · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epidemiological studies have reported the relationship between vacuolating cytotoxin A (vacA) s-/m- region genotypes and duodenal ulcer (DU), but the results remained inconclusive. We performed the present meta-analysis to investigate a more authentic association between vacA s-/m- region genotypes and DU. Literature search was performed by searching Embase, PubMed and ISI Web of Science databases as well as checking references from identified articles, reviews and the abstracts presented at related scientific societies meetings. The association was assessed by combined odds ratio (OR) with 95% confidence interval (CI). A total of 42 studies were included in our final meta-analysis. The combined ORs (95% CIs) showed that vacA s1 (OR = 2.96, 95% CI = 2.34-3.75), m1 (OR = 1.46, 95% CI = 1.05-2.04) and s1m1 (OR = 1.89, 95% CI = 1.47-2.42) were associated with increased DU risk significantly in the overall studied population. Subgroup analyses by ethnicity showed that vacA s1 increased the risk of DU in Asian countries (OR = 1.92, 95% CI = 1.30-2.83), European countries (OR = 3.58, 95% CI = 2.13-6.03) and Latin American countries (OR = 4.20, 95% CI = 2.21-7.98); vacA m1 increased the risk of DU in Latin American countries (OR = 2.98, 95% CI = 1.59-5.56); vacA s1m1 increased the risk of DU in Asian countries (OR = 2.04, 95% CI = 1.12-3.73) and Latin American countries (OR = 2.05, 95% CI = 1.20-3.48); vacA s2m1 increased the risk of DU in Latin American countries (OR = 2.30, 95% CI = 1.17-4.50). The data suggest that genotype testing of vacA s- and m- region will be useful in screening susceptible individuals for DU development.

Indexed as

Bacterial ProteinsComputational BiologyDuodenal UlcerGenetic Association StudiesHelicobacter pyloriHumansOdds RatioRisk FactorsBacterial ProteinsVacA protein, Helicobacter pylori

Identifiers

PMID25063579
OpenAlexW2026006977

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.