Evidence map›Paper›PMID 19247698›Full record

ArticleEuropean journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology2009

Helicobacter pylori cagA gene variants in Malaysians of different ethnicity.

Ramelah Mohamed, Alfizah Hanafiah, Isa M Rose, Mohd Rizal A Manaf, Shiekh Anwar Abdullah, Ismail Sagap, A van Belkum, Jasmi A Yaacob

Abstract read
In one paragraph

Article in European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Cells · 2020
    Review
  6. Genetic variation in the cag pathogenicity island of Helicobacter pylori strains detected from gastroduodenal patients in Thailand.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2020
    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

8 authors.

Ramelah MohamedUKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Bandar Tun Razak, 56000 Cheras, Kuala Lumpur, Malaysia. ramelah@mail.hukm.ukm.my
Alfizah Hanafiah
Isa M Rose
Mohd Rizal A Manaf
Shiekh Anwar Abdullah
Ismail Sagap
A van Belkum
Jasmi A Yaacob

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have defined DNA repeat variability in the 3'-terminus of the cagA gene of Helicobacter pylori strains from Malaysian patients of different ethnicities. We identified different alleles based on the EPIYA repeats. cagA types A-B-D and A-B-B-D are more similar to the sequence of Japanese strains, whereas cagA types A-B-C, A-B-C-C, A-B and A-C displayed similarity to strain 26695 sequences. A significant association was found between cagA genotypes and patients' ethnicity, with cagA type A-B-D being predominantly isolated from Chinese patients and cagA type A-B-C from Malays and Indians. Our data further corroborate the possibility that variant biological activity of CagA may affect the host specificity and/or pathogenicity of H. pylori.

Indexed as

Polymorphism, GeneticAmino Acid SequenceAntigens, BacterialBacterial ProteinsDNA, BacterialHelicobacter InfectionsHelicobacter pyloriHumansMalaysiaMolecular Sequence DataPolymerase Chain ReactionRacial GroupsRepetitive Sequences, Nucleic AcidSequence Analysis, DNAAntigens, BacterialBacterial ProteinscagA protein, Helicobacter pyloriDNA, Bacterial

Identifiers

PMID19247698
PMCPMC2693772

What OpenQuestion holds

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Registered trials

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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.