Evidence map›Paper›PMID 28231283›Full record

ArticlePLoS genetics2017

Rapid evolution of distinct Helicobacter pylori subpopulations in the Americas.

Kaisa Thorell, Koji Yahara, Elvire Berthenet, Daniel J Lawson, Jane Mikhail, Ikuko Kato, Alfonso Mendez, Cosmeri Rizzato, María Mercedes Bravo, Rumiko Suzuki and 4 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
12.6field-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

55 citing papers in PubMed, 99 citations in OpenAlex.

  1. Microbiology and molecular biology reviews : MMBR · 2026
    Review
  2. Article
  3. UnravelingVaccines · 2025
    Review
  4. Antibiotic Resistance and Genetic Determinants ofInternational journal of molecular sciences · 2025
    Article
  5. Helicobacter pylori Infection in Colombia: Phylogeny, Resistome, and Virulome.APMIS : acta pathologica, microbiologica, et immunologica Scandinavica · 2025
    Article
  6. Genomic epidemiology ofFrontiers in microbiology · 2025
    Article
  7. Article
  8. Article
  9. Historical and Molecular Perspectives on the Presence ofInternational journal of molecular sciences · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Pathogenomics of Helicobacter pylori.Current topics in microbiology and immunology · 2023
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 11 institutions in 7 countries.

Kaisa ThorellMicrobiology, Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0002-4447-8968
Koji YaharaDept. of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan.ORCID 0000-0003-4289-1115
Elvire BerthenetMedical Microbiology and Infectious Disease group, Swansea University, Swansea, Wales, United Kingdom.ORCID 0000-0003-4232-9448
Daniel J LawsonIntegrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.ORCID 0000-0002-5311-6213
Jane MikhailMedical Microbiology and Infectious Disease group, Swansea University, Swansea, Wales, United Kingdom.
Ikuko KatoKarmanos Cancer Institute, Wayne State University, Detroit, Michigan, United States of America.
Alfonso MendezInstituto Politecnico Nacional, ENCB, Mexico City, Mexico.ORCID 0000-0003-1871-4311
Cosmeri RizzatoDipartimento di Ricerca Traslazionale e Nuove Tecnologie in Medicina e Chirurgia, Universitá di Pisa, Pisa, Italy.ORCID 0000-0002-7830-2178
María Mercedes BravoGrupo de Investigación en Biología del Cáncer, Instituto Nacional de Cancerología, Bogota, Colombia.ORCID 0000-0002-6472-8362
Rumiko SuzukiDept. of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan.
Yoshio YamaokaDept. of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan.
Javier TorresUnidad de Investigación en Enfermedades Infecciosas, UMAE Pediatria, IMSS, Mexico City, Mexico.ORCID 0000-0003-3945-4221
Samuel K SheppardMilner Center for Evolution, Dept. of Biology and Biochemistry, University of Bath, Bath, United Kingdom.
Daniel FalushMilner Center for Evolution, Dept. of Biology and Biochemistry, University of Bath, Bath, United Kingdom.
Oita University · JPSwansea University · GBUniversity of Bath · GBInstituto Nacional de Cancerología · COInstituto Politécnico Nacional · MXKarolinska Institutet · SEMexican Social Security Institute · MXNational Institute of Infectious Diseases · JPUniversity of Bristol · GBUniversity of Pisa · ITWayne State University · US

Funding

High Resolution Helicobacter SNP Typing to Identify Carcinogenic cagPAI VariantsR21CA182822 · NCI · WAYNE STATE UNIVERSITY · PI KATO, IKUKO · 2014 to 2015
$320k
Medical Research Council MC_UU_12013/1Medical Research Council MR/L015080/1NCI NIH HHS R21 CA182822Wellcome Trust
6 · The paper itself

Abstract

For the last 500 years, the Americas have been a melting pot both for genetically diverse humans and for the pathogenic and commensal organisms associated with them. One such organism is the stomach-dwelling bacterium Helicobacter pylori, which is highly prevalent in Latin America where it is a major current public health challenge because of its strong association with gastric cancer. By analyzing the genome sequence of H. pylori isolated in North, Central and South America, we found evidence for admixture between H. pylori of European and African origin throughout the Americas, without substantial input from pre-Columbian (hspAmerind) bacteria. In the US, strains of African and European origin have remained genetically distinct, while in Colombia and Nicaragua, bottlenecks and rampant genetic exchange amongst isolates have led to the formation of national gene pools. We found three outer membrane proteins with atypical levels of Asian ancestry in American strains, as well as alleles that were nearly fixed specifically in South American isolates, suggesting a role for the ethnic makeup of hosts in the colonization of incoming strains. Our results show that new H. pylori subpopulations can rapidly arise, spread and adapt during times of demographic flux, and suggest that differences in transmission ecology between high and low prevalence areas may substantially affect the composition of bacterial populations.

Indexed as

PhylogenyAllelesDNA, MitochondrialEvolution, MolecularGenome, BacterialHelicobacter InfectionsHelicobacter pyloriHumansIndians, North AmericanLatin AmericaStomach NeoplasmsWhite PeopleDNA, Mitochondrial

Identifiers

PMID28231283
PMCPMC5322909
OpenAlexW2950247734

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.