Evidence map›Paper›PMID 21750885›Full record

ArticleJournal of gastroenterology2011

Expression of angiotensin II type 1 and type 2 receptor mRNAs in the gastric mucosa of Helicobacter pylori-infected Mongolian gerbils.

Mitsushige Sugimoto, Tomoyuki Ohno, Yoshio Yamaoka

Open access · greenAbstract read
In one paragraph

Article in Journal of gastroenterology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Angiotensin receptor blocker and angiotensin-converting enzyme inhibitor use and survival in gastric cancer patients: a Finnish nationwide cohort study.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025
    Article
  3. Article
  4. Review
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  7. Article
  8. Article
  9. Article
  10. Helicobacter pylori virulence and cancer pathogenesis.Future oncology (London, England) · 2014
    Review
  11. Role of renin-angiotensin system in gastric oncogenesis.Journal of gastroenterology and hepatology · 2012
    Review
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 2 institutions in 2 countries.

Mitsushige SugimotoDepartment of Medicine-Gastroenterology, Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, TX, USA.
Tomoyuki Ohno
Yoshio Yamaoka
Michael E. DeBakey VA Medical Center · USBaylor College of Medicine · US

Funding

Tissue Analysis & Molecular Imaging CoreP30DK056338 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI James Versalovic · 2001 to 2026
$28.3M
REGULATION OF CXC CHEMOKINE EXPRESSION BY H. PYLORIR01DK062813 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI YAMAOKA, YOSHIO · 2004 to 2013
$3.0M
NIDDK NIH HHS DK56338NIDDK NIH HHS DK 62813NIDDK NIH HHS P30 DK056338NIDDK NIH HHS R01 DK062813
6 · The paper itself

Abstract

backgroundThe renin-angiotensin system (RAS) plays an important role in normal homeostasis, carcinogenesis-related angiogenesis, and cell proliferation. Helicobacter pylori infection causes infiltration of inflammatory cells into the gastric mucosa and is considered the major cause of gastric cancer. Whether RAS plays a role in H. pylori infection-related gastric diseases remains unclear. We investigated the changes in gastric mucosal angiotensin II type 1 receptor (AT1R) and type 2 receptor (AT2R) mRNA levels throughout the time course of H. pylori infection in Mongolian gerbils.

methodsMongolian gerbils were infected with wild-type H. pylori (for 12 months) or with its isogenic oipA mutant (for 3 months). Gastric mucosal AT1R and AT2R mRNA levels were assessed using real-time reverse transcription-polymerase chain reaction.

resultsThe gastric mucosal AT1R mRNA level was significantly associated with the severity of inflammatory cell infiltration into the gastric mucosa that reached maximal levels at 12 months after infection in both the antrum and body. Inflammatory cell infiltration scores and AT1R and AT2R mRNA levels were significantly lower in oipA mutant than wild-type infections. Mucosal AT1R and AT2R mRNA expressions in wild-type H. pylori-infected gerbils with gastric ulcers were significantly higher than in those without ulcers (P < 0.01).

conclusionsGastric mucosal ATR expression gradually increases during the course of H. pylori infection. Up-regulation of the RAS in association with progressive gastric inflammation suggests a potential role of the RAS in gastric carcinogenesis. OipA appears to play a role in AT1R and AT2R expression and the resulting inflammation.

Indexed as

AnimalsBacterial Outer Membrane ProteinsGastric MucosaGerbillinaeHelicobacter InfectionsHelicobacter pyloriInflammationMaleReceptor, Angiotensin, Type 1Receptor, Angiotensin, Type 2Reverse Transcriptase Polymerase Chain ReactionRNA, MessengerTime FactorsUp-RegulationBacterial Outer Membrane ProteinsOipA protein, Helicobacter pyloriReceptor, Angiotensin, Type 1Receptor, Angiotensin, Type 2RNA, Messenger

Identifiers

PMID21750885
PMCPMC3404294
OpenAlexW1976479481

What OpenQuestion holds

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LicenceTDM
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.