Evidence map›Paper›PMID 19687199›Full record

ArticleInfection and immunity2009

Cryptosporidium parvum isolate-dependent postinfectious jejunal hypersensitivity and mast cell accumulation in an immunocompetent rat model.

Samira Khaldi, Gilles Gargala, Laetitia Le Goff, Simon Parey, Arnaud Francois, Jean Fioramonti, Jean-Jacques Ballet, Jean-Paul Dupont, Philippe Ducrotté, Loïc Favennec

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
0.9field-weighted citation impact, top 22% 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, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Article
  4. Review
  5. Potential therapeutic and prophylactic effects of Asafoetida in murine cryptosporidiosis.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2020
    Article
  6. Health sequelae of human cryptosporidiosis-a 12-month prospective follow-up study.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019
    Article
  7. Article
  8. Protozoan parasites in irritable bowel syndrome: A case-control study.World journal of gastrointestinal pharmacology and therapeutics · 2017
    Article
  9. Article
  10. Review
  11. Tropical parasitology
    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

10 authors at 3 institutions in 1 country.

Samira KhaldiParasitology Laboratory, Rouen University Hospital, and Institute for Biomedical Research, University of Rouen, Rouen, France.
Gilles Gargala
Laetitia Le Goff
Simon Parey
Arnaud Francois
Jean Fioramonti
Jean-Jacques Ballet
Jean-Paul Dupont
Philippe Ducrotté
Loïc Favennec
Université de Rouen Normandie · FRCentre National de la Recherche Scientifique · FRUniversité de Caen Normandie · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cryptosporidium spp. are a cause of self-limited diarrhea in immunocompetent hosts. In immunocompetent rats, Cryptosporidium parvum infection induced digestive hypersensitivity, a key pathophysiological factor in functional digestive disorders such as irritable bowel syndrome (IBS). In such a rat model, we sought to document whether jejunal hypersensitivity depends on C. parvum isolate and is associated with a mast cell accumulation. Five-day-old rats were orally administered 10(5) oocysts of either Nouzilly (NoI) or Iowa (IoI) C. parvum isolate. NoI-infected rats exhibited the lowest food intake on days 7 and 14 postinfection (p.i.). On day 7 p.i., small intestine villus atrophy, crypt hyperplasia, and inflammatory cell infiltration were prominent in NoI-infected rats, with higher numbers of Cryptosporidium forms than in IoI-infected rats. Compared to uninfected control rats, jejunal intraepithelial lymphocytes (IELs) were increased only in NoI-infected rats on day 14 p.i. On day 50 p.i., jejunal hypersensitivity to distension was found only in NoI-infected rats; this hypersensitivity is associated with activated mast cell accumulation. The number of mast cells in the jejunal lamina propria was increased from day 36 p.i. in NoI-infected rats and only at day 120 p.i. in IoI-infected rats. Our data suggest that both the severity of infection (weight loss, reduced food intake, villus atrophy, and IEL accumulation) and the onset of a jejunal hypersensitivity after infection in association with an activated mast cell accumulation are isolate dependent and related to NoI infection. This cryptosporidiosis rat model is a relevant model for the study of underlying mechanisms of postinfectious IBS-like symptoms.

Indexed as

AnimalsCryptosporidiosisCryptosporidium parvumDisease Models, AnimalImmunohistochemistryIntestinal MucosaJejunumMast CellsPain ThresholdRats

Identifiers

PMID19687199
PMCPMC2772558
OpenAlexW2108784544

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.