Evidence map›Paper›PMID 19201928›Full record

ArticleAmerican journal of respiratory and critical care medicine2009

Attenuated P2X7 pore function as a risk factor for virus-induced loss of asthma control.

Loren C Denlinger, Lei Shi, Arturo Guadarrama, Kathy Schell, Dawn Green, Alison Morrin, Kirk Hogan, Ronald L Sorkness, William W Busse, James E Gern

Abstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. P2XAmerican journal of physiology. Lung cellular and molecular physiology · 2023
    Article
  3. P2RX7 at the Host-Pathogen Interface of Infectious Diseases.Microbiology and molecular biology reviews : MMBR · 2021
    Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Personalized management of asthma exacerbations: lessons from genetic studies.Expert review of precision medicine and drug development · 2016
    Article
  9. Nasal lavage VEGF and TNF-α levels during a natural cold predict asthma exacerbations.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2014
    Article
  10. Differential requirement for P2X7R function in IL-17 dependent vs. IL-17 independent cellular immune responses.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2014
    Article
  11. Update in asthma 2013.American journal of respiratory and critical care medicine · 2014
    Review
  12. Article
  13. Article
  14. Virus/allergen interactions in asthma.Current allergy and asthma reports · 2013
    Review
  15. Article
  16. Article
  17. Protection from asthma in a high-risk birth cohort by attenuated P2X(7) function.The Journal of allergy and clinical immunology · 2012
    Article
  18. Article
  19. Lower airway rhinovirus burden and the seasonal risk of asthma exacerbation.American journal of respiratory and critical care medicine · 2011
    Article
  20. Activation of beta1 integrins on blood eosinophils by P-selectin.American journal of respiratory cell and molecular biology · 2011
    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

10 authors at 3 institutions in 1 country.

Loren C DenlingerSection of Allergy, Pulmonary, and Critical Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, P.O. Box 9988, Madison, WI 53792, USA. ldenling@wisc.edu
Lei Shi
Arturo Guadarrama
Kathy Schell
Dawn Green
Alison Morrin
Kirk Hogan
Ronald L Sorkness
William W Busse
James E Gern
Pulmonary and Allergy Associates · USUniversity of Wisconsin–Madison · USUniversity of Wisconsin Carbone Cancer Center · US

Funding

RV-Mediated Mechanisms of Neutrophil Motility /InflammatU19AI070503 · NIAID · UNIVERSITY OF WISCONSIN-MADISON · PI GERN, JAMES E. · 2006 to 2010
$6.8M
Rhinovirus infection of bronchial epithelium &IL-8 mRNAP01AI050500 · NIAID · UNIVERSITY OF WISCONSIN MADISON · PI GERN, JAMES E. · 2001 to 2005
$5.6M
Variant Nucleotide Receptor Function in Airway DisordersK23HL081492 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI DENLINGER, LOREN C · 2008 to 2010
$428k
NCRR NIH HHS K12 RR01761401NHLBI NIH HHS K23 HL081492NIAID NIH HHS P01 AI5050001NIAID NIH HHS U19 AI070503
6 · The paper itself

Abstract

rationaleUpper respiratory tract infection is a guideline accepted risk domain for the loss of asthma control. The ionotrophic nucleotide receptor P2X(7) regulates compartmentalized acute inflammation and the immune response to airway pathogens.

objectivesWe hypothesized that variability in P2X(7) function contributes to neutrophilic airway inflammation during a cold and thereby is linked to acute asthma.

methodsResearch volunteers with asthma were enrolled at the onset of a naturally occurring cold and monitored through convalescence, assessing symptoms, lung function, and airway inflammation. P2X(7) pore activity in whole blood samples was measured using a genomically validated flow cytometric assay. MEASUREMENTS AND MAIN

resultsThirty-five participants with mild to moderate allergic asthma were enrolled and 31 completed all visits. P2X(7) pore function correlated with the change in nasal lavage neutrophil counts during the cold (R(s) = 0.514, P = 0.004) and was inversely related to the change in asthma symptoms (R(s) = -0.486, P = 0.009). The change in peak expiratory flow recordings, precold use of inhaled corticosteroids, and P2X(7) pore function were multivariate predictors of asthma symptoms (P = 0.001, < 0.001 and = 0.003 respectively). Attenuated P2X(7) activity was associated with the risk of losing asthma control (crude odds ratio, 11.0; 95% confidence interval, 1.1-106.4) even after adjustment for inhaled corticosteroids and rhinovirus (odds ratio, 15.0).

conclusionsA whole blood P2X(7) pore assay robustly identifies participants with loss-of-function genotypes. Using this assay as an epidemiologic tool, attenuated P2X(7) pore activity may be a novel biomarker of virus-induced loss of asthma control.

Indexed as

Adrenal Cortex HormonesAlbuterolAsthmaBiomarkersBronchitisBronchodilator AgentsCommon ColdFlow CytometryHumansIon Channel GatingNasal Lavage FluidNeutrophilsNuclear PoreOdds RatioPeak Expiratory Flow RateReceptors, Purinergic P2Adrenal Cortex HormonesAlbuterolBiomarkersBronchodilator AgentsP2RX7 protein, humanReceptors, Purinergic P2Receptors, Purinergic P2X7

Identifiers

PMID19201928
PMCPMC2643076
OpenAlexW2107137580

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.