Evidence map›Paper›PMID 10023340›Full record

ArticleJournal of clinical pathology1998

Chemokine mRNA expression in gastric mucosa is associated with Helicobacter pylori cagA positivity and severity of gastritis.

T Shimoyama, S M Everett, M F Dixon, A T Axon, J E Crabtree

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical pathology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
15.0field-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

44 citing papers in PubMed, 141 citations in OpenAlex.

  1. Article
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  4. Epidemiology ofToxins · 2018
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  8. The Role of RANTES Promoter Polymorphism in Functional Dyspepsia.Journal of clinical biochemistry and nutrition · 2009
    Article
  9. Article
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  11. CXCL5 overexpression is associated with late stage gastric cancer.Journal of cancer research and clinical oncology · 2007
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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 1 institution in 1 country.

T ShimoyamaMolecular Medicine Unit, St James's University Hospital, Leeds, UK.
S M Everett
M F Dixon
A T Axon
J E Crabtree
St James's University Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo investigate the association between the quantity of gastric chemokine mRNA expression, severity of gastritis, and cagA positivity in Helicobacter pylori associated gastritis.

methodsIn 83 dyspeptic patients, antral and corpus biopsies were taken for semiquantitative reverse transcription polymerase chain reaction (RT-PCR) and histological grading of gastritis. Gastritis was evaluated by visual analogue scales. Quantities of chemokine (IL-8, GRO alpha, ENA-78, RANTES, MCP-1) RT-PCR products were compared with G3PDH products. Each sample was also evaluated for the presence of cagA and ureA mRNA by RT-PCR.

resultsmRNA expression of all five chemokines was significantly greater in H pylori positive than in H pylori negative mucosa. In H pylori positive patients, in the antrum C-X-C chemokine mRNA expression was significantly greater in cagA positive patients than in cagA negative patients, but there were no significant differences in C-C chemokine mRNA expression. In H pylori positive patients, chemokine mRNA expression in the corpus was less than in the antrum. In contrast to the antrum, only GRO alpha mRNA expression was significantly greater in cagA positive infection. Polymorphonuclear cell infiltration was correlated with C-X-C chemokine mRNA expression. Significant correlations were also found between bacterial density and C-X-C chemokine mRNA expression.

conclusionsIn H pylori infection, C-X-C chemokines may play a primary role in active gastritis. Infection with cagA positive H pylori induces greater gastric chemokine mRNA expression in the antral mucosa, which may be relevant to the increased mucosal damage associated with cagA positive H pylori infection.

Indexed as

Antigens, BacterialBacterial ProteinsChemokinesGastric MucosaGastritisGene ExpressionGenes, BacterialHelicobacter InfectionsHelicobacter pyloriHumansProspective StudiesReverse Transcriptase Polymerase Chain ReactionRNA, MessengerAntigens, BacterialBacterial ProteinscagA protein, Helicobacter pyloriChemokinesRNA, Messenger

Identifiers

PMID10023340
PMCPMC500932
OpenAlexW2104203899

What OpenQuestion holds

Texttitle and abstract
Read underepoch 390

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.