Evidence map›Paper›PMID 33087044›Full record

SynthesisBMC immunology2020

Interleukin 4 gene polymorphism (-589C/T) and the risk of asthma: a meta-analysis and met-regression based on 55 studies.

Ahmad Kousha, Armita Mahdavi Gorabi, Mehdi Forouzesh, Mojgan Hosseini, Markov Alexander, Danyal Imani, Bahman Razi, Mohammad Javad Mousavi, Saeed Aslani, Haleh Mikaeili

Abstract readMeta-Analysis
In one paragraph

Synthesis in BMC immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. 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.

Ahmad KoushaDepartment of Health Education and Health Promotion, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran.
Armita Mahdavi GorabiResearch Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.
Mehdi ForouzeshLegal medicine Research Center, Legal Medicine organization, Tehran, Iran.
Mojgan HosseiniDepartment of Science, Islamshahr Branch, Islamic Azad University, Islamshahr, Tehran, Iran. mojgan-hosseini@iiau.ac.ir.
Markov AlexanderTyumen State Medical University, Tyumen, Russian Federation.
Danyal ImaniDepartment of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Bahman RaziDepartment of Hematology and Blood Banking, School of Medicine, Tarbiat Modares University, Tehran, Iran.
Mohammad Javad MousaviDepartment of Hematology, Faculty of Allied Medicine, Bushehr University of Medical Sciences, Bushehr, Iran.
Saeed AslaniDepartment of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Haleh MikaeiliTuberculosis and Lung Diseases Research Center, Tabriz University of Medical sciences, Tabriz, Iran. mikaeilihale@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNumerous investigations have previously evaluated the association of interleukin (IL) 4 gene polymorphisms and the risk of asthma, conferring inconsistent results. To resolve the incongruent outcomes yielded from different single studies, we conducted the most up-to-date meta-analysis of IL4 gene -589C/T (rs2243250) polymorphism and susceptibility to asthma.

methodsA systematic literature search was performed in ISI web of science, Scopus, Medline/PubMed databases prior to September 2020, and the pooled odds ratio (OR) and their corresponding 95% CI were calculated to determine the association strength.

resultsLiterature search led to retrieving of 49 publications (55 case-control studies) containing 9572 cases and 9881 controls. It was revealed that IL4 gene -589C/T polymorphism increased the risk of asthma across all genetic models, including dominant model (OR = 1.22), recessive model (OR = 1.17), allelic model (OR = 1.21), and TT vs. CC model (OR = 1.34), but not the CT vs. TT model. The subgroup analysis by age indicated that IL4 gene -589C/T polymorphism was significantly associated with asthma risk in both pediatrics and adults. Additionally, the subgroup analysis by ethnicity revealed significant association in Asian, American, and Europeans. Finally, subgroup analysis by East Asian and non-East Asian populations indicated significant associations.

conclusionsThe current meta-analysis revealed that IL4 gene -589C/T polymorphism was a susceptibility risk in both pediatrics and adults in the whole and different ethnic groups.

Indexed as

GenotypeAllelesAsthmaCase-Control StudiesEthnicityGenetic Association StudiesGenetic Predisposition to DiseaseHumansInterleukin-4Polymorphism, Single NucleotideIL4 protein, humanInterleukin-4AsthmaGenetic susceptibilityInterleukin 4Meta-analysisPolymorphism

Identifiers

PMID33087044
PMCPMC7579954

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.