Evidence map›Paper›PMID 22197766›Full record

ReviewInfection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases2012

Molecular epidemiology, population genetics, and pathogenic role of Helicobacter pylori.

Rumiko Suzuki, Seiji Shiota, Yoshio Yamaoka

Open access · greenAbstract readReview
In one paragraph

Review in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 1 pooled it
12.7field-weighted citation impact, top 1% 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

68 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Helicobacter pylori in oral cavity: current knowledge.Clinical and experimental medicine · 2024
    Review
  5. Article
  6. Relative risk of gastric cancer between those with and withoutJGH open : an open access journal of gastroenterology and hepatology · 2022
    Article
  7. Review
  8. EPIYA Motif Genetic Characterization fromAdvanced biomedical research · 2022
    Article
  9. Article
  10. Helicobacter pylori virulence dupA gene: risk factor or protective factor?Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2021
    Article
  11. Article
  12. Review
  13. Detection ofPathogens (Basel, Switzerland) · 2020
    Article
  14. Article
  15. Molecular Phylogenetic Analysis ofInternational journal of microbiology · 2020
    Article
  16. Article
  17. Article
  18. DifferentialPathogens (Basel, Switzerland) · 2019
    Article
  19. Article
  20. Article

8 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 2 countries.

Rumiko SuzukiDepartment of Environmental and Preventive Medicine, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu-City, Oita 879-5593, Japan.
Seiji Shiota
Yoshio Yamaoka
Oita University · JP

Funding

REGULATION OF CXC CHEMOKINE EXPRESSION BY H. PYLORIR01DK062813 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI YAMAOKA, YOSHIO · 2004 to 2013
$3.0M
NIDDK NIH HHS DK62813NIDDK NIH HHS R01 DK062813
6 · The paper itself

Abstract

Helicobacter pylori infection is linked to various gastroduodenal diseases; however, only approximately 20% of infected individuals develop severe diseases. Despite the high prevalence of H. pylori infection in Africa and South Asia, the incidence of gastric cancer in these areas is much lower than in other countries. Furthermore, the incidence of gastric cancer tends to decrease from north to south in East Asia. Such geographic differences in the pathology can be explained, at least in part, by the presence of different types of H. pylori virulence factors, especially cagA, vacA, and the right end of the cag pathogenicity island. The genotype of the virulence genes is also useful as a tool to track human migration utilizing the high genetic diversity and frequent recombination between different H. pylori strains. Multilocus sequence typing (MLST) analysis using seven housekeeping genes can also help to predict the history of human migrations. Population structure analysis based on MLST has revealed seven modern population types of H. pylori, which derived from six ancestral populations. Interestingly, the incidence of gastric cancer is closely related to the distribution of H. pylori populations. The different incidence of gastric cancer can be partly attributed to the different genotypes of H. pylori circulating in different geographic areas. Although approaches by MLST and virulence factors are effective, these methods focus on a small number of genes and may miss information conveyed by the rest of the genome. Genome-wide analyses using DNA microarray or whole-genome sequencing technology give a broad view on the genome of H. pylori. In particular, next-generation sequencers, which can read DNA sequences in less time and at lower costs than Sanger sequencing, enabled us to efficiently investigate not only the evolution of H. pylori, but also novel virulence factors and genomic changes related to drug resistance.

Indexed as

AnimalsEmigration and ImmigrationGenome, BacterialGenome-Wide Association StudyHelicobacter InfectionsHelicobacter pyloriHigh-Throughput Nucleotide SequencingHumansMultilocus Sequence TypingPopulationVirulence FactorsVirulence Factors

Identifiers

PMID22197766
PMCPMC3294018
OpenAlexW2045209229

What OpenQuestion holds

Textmetadata
LicenceTDM
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.