Evidence map›Paper›PMID 9952230›Full record

ArticleDigestive diseases and sciences1999

One stomach--one strain: does Helicobacter pylori strain variation influence disease outcome?

H Enroth, O Nyrén, L Engstrand

Abstract read
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In one paragraph

Article in Digestive diseases and sciences, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Heterogeneity ofInfection and drug resistance · 2021
    Article
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  7. An enzymatic ruler modulates Lewis antigen glycosylation of Helicobacter pylori LPS during persistent infection.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
  8. Article
  9. Article
  10. Article
  11. Concordance of Helicobacter pylori strains within families.Journal of clinical microbiology · 2003
    Article
  12. Article
  13. Infection with cagA-positive and cagA-negative types of Helicobacter pylori among children and adolescents with gastrointestinal symptoms in Latvia.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2003
    Article
  14. Article
  15. 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

3 authors at 1 institution in 1 country.

H EnrothDepartment of Medical Epidemiology, Karolinska Institute, Stockholm, Sweden.
O Nyrén
L Engstrand
Karolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of the study was to determine inter- and intrapatient variation of Helicobacter pylori strains based on genomic fingerprinting and cagA (cytotoxin-associated gene A) status. Ten bacterial colonies from each of 10 patients with gastric cancer (GC), 10 with duodenal ulcer (DU), and 10 with gastritis (GI) were used. The presence of the putative adhesin gene, the cagA gene, and the strain specific banding pattern obtained by arbitrary primed (AP-) PCR was analyzed. Genomic fingerprinting showed extensive interpatient variation, but the banding patterns obtained from colonies from the same patient were always identical (intrapatient variation). In five patients, the cagA status varied between the colonies despite identical banding patterns. Among patients in a developed country such as Sweden, the proportion with multiple-strain infection of H. pylori is low, but subclones with differing cagA status exist within the strain.

Indexed as

Adhesins, BacterialAgedCytotoxinsDNA FingerprintingDuodenal UlcerFemaleGastritisHelicobacter InfectionsHelicobacter pyloriHumansMalePolymerase Chain ReactionSpecies SpecificityStomachStomach NeoplasmsAdhesins, BacterialCytotoxins

Identifiers

PMID9952230
OpenAlexW1486898924

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.