Evidence map›Paper›PMID 9596724›Full record

ArticleInfection and immunity1998

Experimental Helicobacter pylori infection induces antral gastritis and gastric mucosa-associated lymphoid tissue in guinea pigs.

N H Shomer, C A Dangler, M T Whary, J G Fox

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1998. 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
6.6field-weighted citation impact, top 3% 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, 56 citations in OpenAlex.

  1. Managing dangerous liaisons: lessons fromJournal of bacteriology · 2026
    Review
  2. Article
  3. A critical review onFrontiers in cellular and infection microbiology · 2025
    Review
  4. Animal Models andJournal of clinical medicine · 2022
    Review
  5. Article
  6. Article
  7. Pathogenesis of Helicobacter pylori infection.Clinical microbiology reviews · 2006
    Review
  8. Article
  9. Article
  10. Rapid genetic analysis of Helicobacter pylori gastric mucosal colonization in suckling mice.Proceedings of the National Academy of Sciences of the United States of America · 2002
    Article
  11. Article
  12. Review
  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

4 authors at 1 institution in 1 country.

N H ShomerDivision of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. nirah@mit.edu
C A Dangler
M T Whary
J G Fox
Massachusetts Institute of Technology · US

Funding

POSTDOCTORAL TRAINING IN COMPARATIVE MEDICINET32RR007036 · NCRR · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI FOX, JAMES G · 1988 to 2011
$3.6M
NCRR NIH HHS R01A1-RR37740NCRR NIH HHS RR07036NCRR NIH HHS T32 RR007036
6 · The paper itself

Abstract

Humans infected with Helicobacter pylori have abnormally low levels of the antioxidant vitamin C, which protects against the formation of carcinogenic nitrosamines, in gastric juice. Guinea pigs, like humans and nonhuman primates, have a dietary requirement for vitamin C. As such, these species have gastrointestinal vitamin C transport systems not found in other animals. We have developed and characterized a guinea pig model of chronic gastric H. pylori infection with the rodent-adapted Sydney strain of H. pylori. At 4 weeks postinfection, five of six animals of the infected group and zero of two animals of the control group were positive for H. pylori as determined by culture or PCR. At 15 weeks, six of six animals of the infected group and zero of two animals of the control group were positive. H. pylori-specific seroconversion was observed among infected animals. There were no histologic abnormalities in the gastric antra or fundi of control guinea pigs. In contrast, there was multifocal, mild to moderate lymphohistiocytic antral gastritis and formation of antral lymphoid follicles in H. pylori-infected animals. The lesion distribution in the gastric antra paralleled that observed in H. pylori-infected humans. The H. pylori-infected guinea pig should prove useful in modeling the interaction of helicobacter and vitamin C in gastric carcinogenesis.

Indexed as

Helicobacter pyloriAnimalsAntibodies, BacterialColony Count, MicrobialDisease Models, AnimalFecesFemaleGastric MucosaGastritisGuinea PigsHelicobacter InfectionsHistiocytosis, Non-Langerhans-CellLymphoid TissuePolymerase Chain ReactionPyloric AntrumStomachAntibodies, Bacterial

Identifiers

PMID9596724
PMCPMC108246
OpenAlexW2143630106

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.