Evidence map›Paper›PMID 9864228›Full record

ArticleInfection and immunity1999

Cloning and characterization of a novel membrane-associated antigenic protein of Helicobacter pylori.

M Yoshida, Y Wakatsuki, Y Kobayashi, T Itoh, K Murakami, A Mizoguchi, T Usui, T Chiba, T Kita

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Quantum changes in Helicobacter pylori gene expression accompany host-adaptation.DNA research : an international journal for rapid publication of reports on genes and genomes · 2017
    Article
  5. Article
  6. Article
  7. Tumor promoters: from chemicals to inflammatory proteins.Journal of cancer research and clinical oncology · 2013
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
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

9 authors at 3 institutions in 2 countries.

M YoshidaDivisions of Clinical Bio-Regulatory Science, Graduate School of Medicine, Kyoto University, Japan.
Y Wakatsuki
Y Kobayashi
T Itoh
K Murakami
A Mizoguchi
T Usui
T Chiba
T Kita
Centre for Innovation in Regulatory Science · GBShionogi (Japan) · JPKyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Infection by Helicobacter pylori, a noninvasive bacterium, induces chronic leukocyte infiltration in the stomach by still largely unknown molecular mechanisms. We investigated the possibility that a membrane protein of H. pylori induces an inflammatory reaction in the subepithelial tissue of the stomach. By generating an expression library of H. pylori chromosomal DNA and screening with rabbit antiserum raised to a membrane fraction of H. pylori and sera of infected patients, we cloned a 16.0-kDa protein (HP-MP1) which appeared to attach to the inner membrane of the H. pylori in a homodimeric form. Anti-HP-MP1 antibodies were detected in the sera of infected patients but not in those of uninfected controls. Coincubation of monocytes with recombinant HP-MP1 led to cell activation and production of interleukin-1alpha (IL-1alpha), tumor necrosis factor alpha, IL-8, and macrophage inflammatory protein 1alpha. The results indicate that HP-MP1 is an antigenic membrane-associated protein of H. pylori which potentially activates monocytes. This suggests that HP-MP1 may play roles in the pathogenesis of perpetual tissue inflammation associated with H. pylori infection.

Indexed as

Antibodies, BacterialAntigens, BacterialBacterial Outer Membrane ProteinsCells, CulturedCloning, MolecularCytokinesGenes, BacterialHelicobacter pyloriHumansImmunoblottingMolecular Sequence DataMonocytesRecombinant ProteinsUreaseAntibodies, BacterialAntigens, BacterialBacterial Outer Membrane ProteinsCytokinesHP-MP1 protein, Helicobacter pyloriRecombinant ProteinsUrease

Identifiers

PMID9864228
PMCPMC96309
OpenAlexW1948053391

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.