Evidence map›Paper›PMID 16772309›Full record

ArticleThorax2006

Arginine-16 beta2 adrenoceptor genotype predisposes to exacerbations in young asthmatics taking regular salmeterol.

C N A Palmer, B J Lipworth, S Lee, T Ismail, D F Macgregor, S Mukhopadhyay

3 registry-linked trialsOpen access · bronzeAbstract readMulticenter Study
In one paragraph

Article in Thorax, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 40 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 6 pooled it
9.3field-weighted citation impact, top 1% 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.

NCT00595361 nacompletednot on this mapstarted 2008, after this paper: background citation

The Effect of Beta-2 Adrenergic Polymorphisms on the Bronchoprotective Effects of Regular Salmeterol Treatment in Asthma

TypeinterventionalSponsorBrigham and Women's HospitalRan2008 to 2012Enrolled30ConditionsAsthmaArmssalmeterol
NCT00655616 nacompletednot on this mapstarted 2007, after this paper: background citation

A Proof-of-concept Study to Evaluate the Benefit From add-on Therapy With Montelukast Versus Salmeterol in Children With Asthma Carrying the Arg/Arg-16 beta2-receptor Genotype

TypeinterventionalSponsorUniversity of DundeeRan2007 to 2009Enrolled64ConditionsAsthmaArmsMontelukast Placebo, Salmeterol, Montelukast
NCT02758873 nacompletednot on this mapstarted 2016, after this paper: background citation

Prescribing Asthma Controller Medication According to Gene Status to Improve Quality of Life in Young People With Asthma

TypeinterventionalSponsorUniversity of SussexRan2016 to 2019Enrolled241ConditionsAsthmaArmsPersonalised medicine (Salmeterol), Personalised medicine (Montelukast), Standard care
3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 6 syntheses or guidelines pooled it, 154 citations in OpenAlex.

  1. ADRB2 haplotypes and asthma exacerbations in children and young adults: An individual participant data meta-analysis.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2021
    Pooled it
  2. Genome-wide association studies of exacerbations in children using long-acting beta2-agonists.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2021
    Pooled it
  3. Pooled it
  4. Pooled it
  5. ST13 polymorphisms and their effect on exacerbations in steroid-treated asthmatic children and young adults.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2015
    Pooled it
  6. Pooled it
  7. Trial
  8. Trial
  9. Article
  10. Review
  11. Article
  12. Activation of βArchives of pharmacal research · 2021
    Review
  13. Review
  14. How does race and ethnicity effect the precision treatment of asthma?Expert review of precision medicine and drug development · 2019
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. βHandbook of experimental pharmacology · 2017
    Review
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

C N A PalmerAsthma and Allergy Research Group, Division of Medicine and Therapeutics, Ninewells Hospital, Dundee, UK.
B J Lipworth
S Lee
T Ismail
D F Macgregor
S Mukhopadhyay
Ninewells Hospital · GBUniversity of Dundee · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe homozygous presence of the arginine-16 variant of the beta(2) adrenoceptor gene ADRB2 reverses the benefits from the regular use of short acting beta(2) agonists in asthmatic adults compared with the homozygous glycine-16 genotype. We studied the effect of this polymorphic variation on asthma exacerbations in children and young adults and its relation to long acting beta(2) agonists.

methodsA cross-sectional survey was undertaken using electronic records, direct interviews, and genotype determination of position 16 and 27 of the ADRB2 gene in DNA from mouthwash samples of 546 children and young asthmatics attending paediatric and young adult asthma clinics in Tayside, Scotland during 2004-5. The primary outcome measure was asthma exacerbations over the previous 6 months.

resultsThere was an increased hazard of asthma exacerbations across all treatment steps of the British Thoracic Society (BTS) asthma guidelines when the homozygous genotypes Arg/Arg and Gly/Gly were compared (OR 2.05, 95% CI 1.19 to 3.53, p = 0.010), particularly in patients treated with salmeterol (OR 3.40, 95% CI 1.19 to 9.40, p = 0.022). The Glu27Gln polymorphism had no significant effect on asthma exacerbations in any treatment group.

conclusionsThe arginine-16 genotype of ADRB2 predisposes to exacerbations in asthmatic children and young adults, particularly in those exposed to regular salmeterol. This may be explained by genotype selective salmeterol induced downregulation and impaired receptor coupling, and associated subsensitivity of the response.

Indexed as

AdolescentAdrenergic beta-AgonistsAlbuterolArginineAsthmaChildCross-Sectional StudiesFemaleGenetic Predisposition to DiseaseGenotypeHumansMaleReceptors, Adrenergic, beta-2Salmeterol XinafoateScotlandAdrenergic beta-AgonistsAlbuterolArginineReceptors, Adrenergic, beta-2Salmeterol Xinafoate

Identifiers

PMID16772309
PMCPMC2121164
OpenAlexW2144438866

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.