Evidence map›Paper›PMID 19729670›Full record

ArticleAmerican journal of respiratory and critical care medicine2009

Identification of PCDH1 as a novel susceptibility gene for bronchial hyperresponsiveness.

Gerard H Koppelman, Deborah A Meyers, Timothy D Howard, S Lilly Zheng, Greg A Hawkins, Elizabeth J Ampleford, Jianfeng Xu, Henk Koning, Marcel Bruinenberg, Ilja M Nolte and 13 more

Registry-linked trialOpen access · greenAbstract 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. It is linked to trial NCT05365841 (Role of Epithelial Barrier Integrity in Biologic Treatment Response of Severe Asthmatics With/Out Chronic Rhinosinusitis With Nasal Polyps), which is not on this map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
6.1field-weighted citation impact, top 3% 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.

NCT05365841 unknown statusnot on this mapstarted 2022, after this paper: background citation

Role of Epithelial Barrier Integrity in Biologic Treatment Response of Severe Asthmatics With/Out Chronic Rhinosinusitis With Nasal Polyps (CRSwNP). Can Shedding of Epithelial Barrier Proteins be Used as Biomarker in Severe Asthma With/Out CRSwNP Management?

TypeobservationalSponsorUniversity of CreteRan2022 to 2025Enrolled85ConditionsSevere Eosinophilic Asthma w/wo CRSwNPArmsMepolizumab 100 MG
3 · Its place in the literature

Who cites it

56 citing papers in PubMed, 126 citations in OpenAlex.

  1. Frontiers in immunology · 2026
    Article
  2. Article
  3. Article
  4. Ciliary Function, Antigen Stasis and Asthma.International journal of molecular sciences · 2024
    Review
  5. Review
  6. Effect of air pollution on asthma.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2024
    Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. BMI trajectory in childhood is associated with asthma incidence at young adulthood mediated by DNA methylation.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2021
    Article
  13. COPD-associated miR-145-5p is downregulated in early-decline FEVThe Journal of allergy and clinical immunology · 2021
    Article
  14. The Airway Epithelium-A Central Player in Asthma Pathogenesis.International journal of molecular sciences · 2020
    Review
  15. Review
  16. Review
  17. Epithelial barriers in allergy and asthma.The Journal of allergy and clinical immunology · 2020
    Review
  18. Epithelial barrier repair and prevention of allergy.The Journal of clinical investigation · 2019
    Review
  19. Article
  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

23 authors at 8 institutions in 5 countries.

Gerard H KoppelmanDepartment of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, P.O. Box 30001, 9700 RB Groningen, The Netherlands. g.h.koppelman@bkk.umcg.nl
Deborah A Meyers
Timothy D Howard
S Lilly Zheng
Greg A Hawkins
Elizabeth J Ampleford
Jianfeng Xu
Henk Koning
Marcel Bruinenberg
Ilja M Nolte
Cleo C van Diemen
H Marike Boezen
Wim Timens
Paul A Whittaker
O Colin Stine
Sheila J Barton
John W Holloway
Stephen T Holgate
Penelope E Graves
Fernando D Martinez
Antoon J van Oosterhout
Eugene R Bleecker
Dirkje S Postma
Wake Forest University · USInstitute of Infection and Immunity · CABeatrix Kinderziekenhuis · NLUniversity of Arizona · USInstitute of Medical Biology · SGNovartis (United Kingdom) · GBUniversity Medical Center Groningen · NLUniversity of Maryland, Baltimore · US

Funding

GENETICS OF ASTHMA AND BRONCHIAL HYPERRESPONSIVENESSR01HL048341 · NHLBI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI MEYERS, DEBORAH A. · 1994 to 2007
$3.6M
Medical Research Council G0800766NHLBI NIH HHS R01/HL48341
6 · The paper itself

Abstract

rationaleAsthma is a chronic inflammatory airway disease that affects more than 300 million individuals worldwide. Asthma is caused by interaction of genetic and environmental factors. Bronchial hyperresponsiveness (BHR) is a hallmark of asthma and results from increased sensitivity of the airways to physical or chemical stimulants. BHR and asthma are linked to chromosome 5q31-q33.

objectivesTo identify a gene for BHR on chromosome 5q31-q33.

methodsIn 200 Dutch families with asthma, linkage analysis and fine mapping were performed, and the Protocadherin 1 gene (PCDH1) was identified. PCDH1 was resequenced in 96 subjects from ethnically diverse populations to identify novel sequence variants. Subsequent replication studies were undertaken in seven populations from The Netherlands, the United Kingdom, and the United States, including two general population samples, two family samples, and three case-control samples. PCDH1 mRNA and protein expression was investigated using polymerase chain reaction, Western blotting, and immunohistochemistry. MEASUREMENTS AND MAIN

resultsIn seven out of eight populations (n = 6,168) from The Netherlands, United Kingdom, and United States, PCHD1 gene variants were significantly associated with BHR (P values, 0.005-0.05) This association was present in both families with asthma and general populations. PCDH1 mRNA and protein were expressed in airway epithelial cells and in macrophages.

conclusionsPCDH1 is a novel gene for BHR in adults and children. The identification of PCDH1 as a BHR susceptibility gene may suggest that a structural defect in the integrity of the airway epithelium, the first line of defense against inhaled substances, contributes to the development of BHR.

Indexed as

AdultAsthmaBronchial HyperreactivityChildChromosome MappingChromosomes, Human, Pair 5Genetic LinkageGenetic Predisposition to DiseaseHumansNetherlandsUnited KingdomUnited States

Identifiers

PMID19729670
PMCPMC2778155
OpenAlexW2158787262

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.