Evidence map›Paper›PMID 16040963›Full record

ArticleInfection and immunity2005

Resistance to intestinal Entamoeba histolytica infection is conferred by innate immunity and Gr-1+ cells.

Amon Asgharpour, Carol Gilchrist, Duza Baba, Shinjiro Hamano, Eric Houpt

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 79 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Evaluation of the PEJournal of immunology research · 2021
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Frontiers in cellular and infection microbiology · 2018
    Article
  10. Frontiers in cellular and infection microbiology · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. The Entamoeba histolytica serum-inducible transmembrane kinase EhTMKB1-9 is involved in intestinal amebiasis.International journal for parasitology. Drugs and drug resistance · 2012
    Article
  19. Article
  20. 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

5 authors at 1 institution in 1 country.

Amon AsgharpourDivision of Infectious Diseases and International Health, MR4 Building, Room 2144, University of Virginia, Charlottesville, VA 22908-1363, USA.
Carol Gilchrist
Duza Baba
Shinjiro Hamano
Eric Houpt
University of Virginia · US

Funding

Mucosal immune regulation in murine amebic colitisK08AI052444 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI HOUPT, ERIC R · 2003 to 2007
$591k
NIAID NIH HHS AI052444-01A1NIAID NIH HHS K08 AI052444
6 · The paper itself

Abstract

Establishment of intestinal infection with Entamoeba histolytica depends on the mouse strain; C57BL/6 mice are highly resistant, and C3H/HeJ mice are relatively susceptible. We found that resistance to intestinal infection was independent of lymphocyte activity or H-2 haplotype and occurred in the first hours to days postchallenge according to in vivo imaging. At 18 h postchallenge, the ceca of resistant C57BL/6 mice were histologically unremarkable, in contrast to the severe inflammation observed in susceptible C3H/HeJ mice. Comparison of cecal gene expression in C3H/HeJ and C57BL/6 mice demonstrated that there was parasite-induced upregulation of proinflammatory and neutrophil chemotaxis transcripts and there was downregulation of transforming growth factor beta signaling molecules. Pretreatment with dexamethasone abrogated the partial resistance of C3H/HeJ or CBA mice through an innate, lymphocyte-independent mechanism, but it had no effect on the high-level resistance of C57BL/6 mice. Similarly, administration of a neutrophil-depleting anti-Gr-1 monoclonal antibody (RB6-8C5) decreased the partial resistance of CBA mice and led to severe pathology compared to control antibody-treated mice, but it had no effect on C57BL/6 resistance. These data indicate that there are discrete mechanisms of innate resistance to E. histolytica depending on the host background and, in contrast to other reports, imply that neutrophils are protective and not damaging in intestinal amebiasis.

Indexed as

Immunity, InnateAnimalsAnti-Inflammatory AgentsDexamethasoneDysentery, AmebicEntamoeba histolyticaEntamoebiasisGene Expression ProfilingH-2 AntigensInflammationIntestinesLymphocytesMiceMice, Inbred C3HMice, Inbred CBAMice, SCIDAnti-Inflammatory AgentsDexamethasoneH-2 Antigens

Identifiers

PMID16040963
PMCPMC1201199
OpenAlexW2128154150

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.