Evidence map›Paper›PMID 21711105›Full record

ArticleThe Journal of parasitology2011

Cryptosporidium-malnutrition interactions: mucosal disruption, cytokines, and TLR signaling in a weaned murine model.

Lourrany B Costa, Eric A JohnBull, Jordan T Reeves, Jesus Emmanuel Sevilleja, Rosemayre S Freire, Paul S Hoffman, Aldo A M Lima, Reinaldo B Oriá, James K Roche, Richard L Guerrant and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of parasitology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

40 citing papers in PubMed, 74 citations in OpenAlex.

  1. Early life infection withGut microbes · 2025
    Article
  2. Review
  3. Article
  4. Early immune and host cell responses toFrontiers in parasitology · 2023
    Article
  5. Article
  6. Article
  7. Cryptosporidiosis and malnutrition in children.Journal of infection prevention · 2022
    Article
  8. Article
  9. Article
  10. Observational
  11. Article
  12. Apicomplexan lineage-specific polytopic membrane proteins inJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2020
    Article
  13. A Brazilian regional basic diet-induced chronic malnutrition drives liver inflammation with higher ApoA-I activity in C57BL6J mice.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2020
    Article
  14. Review
  15. Article
  16. Review
  17. Amixicile Reduces Severity of Cryptosporidiosis but Does Not HaveAntimicrobial agents and chemotherapy · 2018
    Article
  18. Article
  19. Review
  20. 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

11 authors at 2 institutions in 2 countries.

Lourrany B CostaCenter for Global Health, University of Virginia, Charlottesville, Virginia 22908, USA.
Eric A JohnBull
Jordan T Reeves
Jesus Emmanuel Sevilleja
Rosemayre S Freire
Paul S Hoffman
Aldo A M Lima
Reinaldo B Oriá
James K Roche
Richard L Guerrant
Cirle Alcantara Warren
University of Virginia · USUniversidade Federal do Ceará · BR

Funding

Vaccine strategy for broad spectrum protection agains non-typhoidal salmonellU54AI057168 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI LEVINE, MYRON MAX · 2003 to 2013
$91.5M
Global Infectious Disease Research Training Program at UVAD43TW006578 · FIC · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI GUERRANT, RICHARD L · 2003 to 2018
$2.7M
Nitrothiazolides:Broad-Spectrum Category B Anti-parasitic/bacterial TherapeuticsU01AI075520 · NIAID · UNIVERSITY OF VIRGINIA · PI HOFFMAN, PAUL STOKES · 2007 to 2011
$2.6M
FIC NIH HHS D43 TW0006578FIC NIH HHS D43 TW006578NIAID NIH HHS U01 AI075520NIAID NIH HHS U01 AI75520NIAID NIH HHS U54 AI057168
6 · The paper itself

Abstract

Cryptosporidiosis is a leading cause of persistent diarrhea in children in impoverished and developing countries and has both a short- and long-term impact on the growth and development of affected children. An animal model of cryptosporidial infection that mirrors closely the complex interaction between nutritional status and infection in children, particularly in vulnerable settings such as post-weaning and malnourishment, is needed to permit exploration of the pathogenic mechanisms involved. Weaned C57BL/6 mice received a protein-deficient (2%) diet for 3-12 days, then were infected with 5 × 10(7) excysted C. parvum oocyts, and followed for rate of growth, parasite stool shedding, and intestinal invasion/morphometry. Mice had about 20% reduction in weight gain over 12 days of malnutrition and an additional 20% weight loss after C. parvum challenge. Further, a significantly higher fecal C. parvum shedding was detected in malnourished infected mice compared to the nourished infected mice. Also, higher oocyst counts were found in ileum and colon tissue samples from malnourished infected mice, as well as a significant reduction in the villous height-crypt depth ratio in the ileum. Tissue Th1 cytokine concentrations in the ileum were significantly diminished by malnutrition and infection. mRNA for toll-like receptors 2 and 4 were diminished in malnourished infected mice. Treatment with nitazoxanide did not prevent weight loss or parasite stool shedding. These findings indicate that, in the weaned animal, malnutrition intensifies cryptosporidial infection, while cryptosporidial infection further impairs normal growth. Depressed TLR2 and 4 signaling and Th1 cytokine response may be important in the mechanisms underlying the vicious cycle of malnutrition and enteric infection.

Indexed as

AnimalsAntiparasitic AgentsCryptosporidiosisCryptosporidium parvumCytokinesDisease Models, AnimalDNA, ProtozoanFecesFemaleIleumIntestinal MucosaMalnutritionMiceMice, Inbred C57BLNitro CompoundsRNA, MessengerAntiparasitic AgentsCytokinesDNA, ProtozoannitazoxanideNitro CompoundsRNA, MessengerThiazolesToll-Like Receptors

Identifiers

PMID21711105
PMCPMC3247658
OpenAlexW2104721573

What OpenQuestion holds

Textmetadata
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.