Evidence map›Paper›PMID 21752289›Full record

ArticleRespiratory research2011

The prevalence of alpha-1 antitrypsin deficiency in Ireland.

Tomás P Carroll, Catherine A O'Connor, Olwen Floyd, Joseph McPartlin, Dermot P Kelleher, Geraldine O'Brien, Borislav D Dimitrov, Valerie B Morris, Clifford C Taggart, Noel G McElvaney

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 14% 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, 3 syntheses or guidelines pooled it, 87 citations in OpenAlex.

  1. Pooled it
  2. Prevalence of αEuropean respiratory review : an official journal of the European Respiratory Society · 2020
    Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Testing Alpha-1 Antitrypsin Deficiency in Black Populations.Advances in respiratory medicine · 2023
    Review
  8. Article
  9. Observational
  10. Review
  11. Review
  12. The emerging role of proteases in αERJ open research · 2021
    Review
  13. Article
  14. Variants ofTherapeutic advances in chronic disease · 2021
    Review
  15. Clarifying the Risk of Lung Disease in SZ Alpha-1 Antitrypsin Deficiency.American journal of respiratory and critical care medicine · 2020
    Observational
  16. Clinical considerations in individuals with αThe European respiratory journal · 2020
    Review
  17. Article
  18. Diagnosis and management of αERJ open research · 2019
    Article
  19. Article
  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

10 authors at 4 institutions in 2 countries.

Tomás P CarrollDepartment of Medicine, Royal College of Surgeons in Ireland Education and Research Centre, Beaumont Hospital, Dublin 9, Ireland. tcarroll@rcsi.ie
Catherine A O'Connor
Olwen Floyd
Joseph McPartlin
Dermot P Kelleher
Geraldine O'Brien
Borislav D Dimitrov
Valerie B Morris
Clifford C Taggart
Noel G McElvaney
Beaumont Hospital · IERoyal College of Surgeons in Ireland · IESt. James's Hospital · IEQueen's University Belfast · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlpha-1 antitrypsin deficiency (AATD) results from mutations in the SERPINA1 gene and classically presents with early-onset emphysema and liver disease. The most common mutation presenting with clinical evidence is the Z mutation, while the S mutation is associated with a milder plasma deficiency. AATD is an under-diagnosed condition and the World Health Organisation recommends targeted detection programmes for AATD in patients with chronic obstructive pulmonary disease (COPD), non-responsive asthma, cryptogenic liver disease and first degree relatives of known AATD patients.

methodsWe present data from the first 3,000 individuals screened following ATS/ERS guidelines as part of the Irish National Targeted Detection Programme (INTDP). We also investigated a DNA collection of 1,100 individuals randomly sampled from the general population. Serum and DNA was collected from both groups and mutations in the SERPINA1 gene detected by phenotyping or genotyping.

resultsThe Irish National Targeted Detection Programme identified 42 ZZ, 44 SZ, 14 SS, 430 MZ, 263 MS, 20 IX and 2 rare mutations. Analysis of 1,100 randomly selected individuals identified 113 MS, 46 MZ, 2 SS and 2 SZ genotypes.

conclusionOur findings demonstrate that AATD in Ireland is more prevalent than previously estimated with Z and S allele frequencies among the highest in the world. Furthermore, our targeted detection programme enriched the population of those carrying the Z but not the S allele, suggesting the Z allele is more important in the pathogenesis of those conditions targeted by the detection programme.

Indexed as

alpha 1-Antitrypsinalpha 1-Antitrypsin DeficiencyChi-Square DistributionDNA Mutational AnalysisGene FrequencyGenetic Predisposition to DiseaseGenetic TestingHealth SurveysHumansIrelandMass ScreeningMutationOdds RatioPhenotypePrevalenceRisk Assessmentalpha 1-AntitrypsinSERPINA1 protein, human

Identifiers

PMID21752289
PMCPMC3155497
OpenAlexW2131837116

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.