Evidence map›Paper›PMID 20569429›Full record

ArticleBMC immunology2010

Duplex real-time reverse transcriptase PCR to determine cytokine mRNA expression in a hamster model of New World cutaneous leishmaniasis.

Claudia M Espitia, Weiguo Zhao, Omar Saldarriaga, Yaneth Osorio, Lisa M Harrison, Michael Cappello, Bruno L Travi, Peter C Melby

Open access · goldAbstract read
In one paragraph

Article in BMC immunology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

33 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. A single intranasal dose of a live-attenuated parainfluenza virus-vectored SARS-CoV-2 vaccine is protective in hamsters.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Interleukin (IL)-21 in Inflammation and Immunity During Parasitic Diseases.Frontiers in cellular and infection microbiology · 2019
    Review
  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

8 authors at 4 institutions in 1 country.

Claudia M EspitiaResearch Service, Department of Veterans Affairs Medical Center, South Texas Veterans Health Care System, 7400 Merton Minter, San Antonio, Texas, USA.
Weiguo Zhao
Omar Saldarriaga
Yaneth Osorio
Lisa M Harrison
Michael Cappello
Bruno L Travi
Peter C Melby
South Texas Veterans Health Care System · USThe University of Texas System · USYale University · USThe University of Texas Health Science Center at San Antonio · US

Funding

The role of MIF in hookworm infection and diseaseR01AI058980 · NIAID · YALE UNIVERSITY · PI CAPPELLO, MICHAEL · 2005 to 2009
$2.1M
NOS2 and arginase in visceral leishmaniasisR01AI061624 · NIAID · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI MELBY, PETER C. · 2005 to 2009
$1.5M
NIAID NIH HHS AI058980NIAID NIH HHS AI61624
6 · The paper itself

Abstract

backgroundThe Syrian hamster, Mesocricetus auratus, has distinct immunological features and is uniquely susceptible to intracellular pathogens. Studies in hamsters are limited by the relative unavailability of tools to conduct immunological studies. To address this limitation we developed duplex real-time reverse transcriptase (RT) PCR assays for the relative quantification of the mRNAs of hamster cytokines, chemokines, and related immune response molecules.

resultsReal-time RT-PCR primers and probes were synthesized for analysis of interleukin (IL)-4, IFN-gamma, TNF-alpha, IL-10, IL-12p40, TGF-beta, IL-13, IL-21, chemokine ligand (CCL) 22, CCL17, Chemokine (C-C motif) receptor 4 and FoxP3 expression. Standard curves and validation experiments were performed for each real-time RT-PCR assay, allowing us to use the comparative Ct (2-DeltaDeltaCt) method to calculate changes in gene expression. Application of the real-time RT PCR assays to a biological model was demonstrated by comparing mRNA expression in skin and lymph node tissues between uninfected and Leishmania panamensis infected hamsters.

conclusionsThe duplex real-time RT PCR assays provide a powerful approach for the quantification of cytokine transcription in hamsters, and their application to a model of cutaneous leishmaniasis suggests that a balanced type 1 and type 2 cytokine response contributes to the chronic, nonprogressive course of disease. These new molecular tools will further facilitate investigation into the mechanisms of disease in the hamster, not only for models of leishmaniasis, but also for other viral, bacterial, fungal, and parasitic infections.

Indexed as

Gene Expression RegulationAnimalsCricetinaeCytokinesDisease Models, AnimalDisease ProgressionDNA, ComplementaryLeishmania guyanensisLeishmaniasis, CutaneousLymph NodesReference StandardsReproducibility of ResultsReverse Transcriptase Polymerase Chain ReactionRNA, MessengerSkinCytokinesDNA, ComplementaryRNA, Messenger

Identifiers

PMID20569429
PMCPMC2909172
OpenAlexW2016503483

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.