Evidence map›Paper›PMID 16790780›Full record

ArticleInfection and immunity2006

Identification of markers for Helicobacter pylori strains isolated from children with peptic ulcer disease by suppressive subtractive hybridization.

Mónica Oleastro, Lurdes Monteiro, Philippe Lehours, Francis Mégraud, Armelle Ménard

Open access · greenAbstract readValidation Study
In one paragraph

Article in Infection and immunity, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 7% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Narra J · 2025
    Article
  4. Biofilm ofAntibiotics (Basel, Switzerland) · 2023
    Review
  5. Review
  6. 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
  7. Review
  8. World journal of gastroenterology · 2019
    Review
  9. DifferentialPathogens (Basel, Switzerland) · 2019
    Article
  10. Article
  11. ArsRS-Dependent Regulation ofFrontiers in microbiology · 2018
    Article
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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

5 authors at 2 institutions in 2 countries.

Mónica OleastroUnidade Helicobacter/Campylobacter, Centro de Bacteriologia, Instituto Nacional Saúde Dr Ricardo Jorge, Av. Padre Cruz 1649-016 Lisbon, Portugal. monica.oleastro@insa.min-saude.pt
Lurdes Monteiro
Philippe Lehours
Francis Mégraud
Armelle Ménard
Inserm · FRNational Institute of Health Dr. Ricardo Jorge · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Peptic ulcer disease (PUD) occurs after a long-term Helicobacter pylori infection. However, the disease can develop earlier, and rare cases have been observed in children, suggesting that these H. pylori strains may be more virulent. We used suppressive subtractive hybridization for comparative genomics between H. pylori strains isolated from a 5-year-old child with duodenal ulcer and from a sex- and age-matched child with gastritis only. The prevalence of the 30 tester-specific subtracted sequences was determined on a collection of H. pylori strains from children (15 ulcers and 30 gastritis) and from adults (46 ulcers and 44 gastritis). Two of these sequences, jhp0562 (80.0% versus 33.3%, P = 0.008) and jhp0870 (80.0% versus 36.7%, P = 0.015), were highly associated with PUD in children and a third sequence, jhp0828, was less associated (40.0% versus 10.0%, P = 0.048). Among adult strains, none of the 30 sequences was associated with PUD. However, both jhp0562 and jhp0870 were less prevalent in adenocarcinoma strains than in PUD strains from children and adults, the difference being statistically significant for jhp0870. In conclusion, two H. pylori genes were identified as being strongly associated with PUD in children, and their putative roles as an outer membrane protein for jhp0870 and in lipopolysaccharide biosynthesis for jhp0562, suggest that they may be novel virulence factors of H. pylori.

Indexed as

In Situ HybridizationAdultBiomarkersChildChild, PreschoolFemaleGene LibraryHelicobacter pyloriHumansMaleMiddle AgedPeptic UlcerPolymerase Chain ReactionBiomarkers

Identifiers

PMID16790780
PMCPMC1489719
OpenAlexW2100525384

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.