Evidence map›Paper›PMID 33382170›Full record

ArticleClinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology2021

Second-hand smoke and NFE2L2 genotype interaction increases paediatric asthma risk and severity.

Elisabet Johansson, Lisa J Martin, Hua He, Xiaoting Chen, Matthew T Weirauch, John W Kroner, Gurjit K Khurana Hershey, Jocelyn M Biagini

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Persistent exposure to second-hand smoke and asthma endotypes in a study of Puerto Rican youth.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2026
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Gene-environment interactions in childhood asthma revisited; expanding the interaction concept.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2022
    Review
  11. 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

8 authors at 1 institution in 1 country.

Elisabet JohanssonDivision of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
Lisa J MartinDivision of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
Hua HeDivision of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
Xiaoting ChenCenter for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
Matthew T WeirauchDepartment of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
John W KronerDivision of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
Gurjit K Khurana HersheyDivision of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.ORCID 0000-0001-6663-977X
Jocelyn M BiaginiDivision of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.ORCID 0000-0002-4378-6133
Cincinnati Children's Hospital Medical Center · US

Funding

TSLP, IL-9-producing mucosal mast cells, and allergic inflammationU19AI070235 · NIAID · CINCINNATI CHILDRENS HOSP MED CTR · PI Gurjit K. Khurana Hershey · 2006 to 2026
$31.3M
NIAID NIH HHS U19 AI070235
6 · The paper itself

Abstract

backgroundSecond-hand smoke (SHS) exposure is associated with paediatric asthma, and oxidative stress is believed to play a role in mediating this association. The nuclear factor (erythroid-derived 2)-like 2 (NFE2L2) is important for the defence against oxidative stress.

objectiveTo explore interactions between NFE2L2 genotype and SHS exposure in paediatric asthma risk.

methodsWe used a genotyped subset of patients of European ancestry (N = 669, median age at enrolment = 6.8 years) enrolled in the clinical cohort Greater Cincinnati Pediatric Clinic Repository as the study population, and a population-based paediatric cohort (N = 791) to replicate our findings. History of asthma diagnosis was obtained from medical records, and SHS exposure was obtained from questionnaires. Four NFE2L2 tagging SNPs were included in the analysis, and interactions between SHS and NFE2L2 genotype were evaluated using logistic regression.

resultsThree of the analysed SNPs, rs10183914, rs1806649 and rs2886161, interacted significantly with SHS exposure to increase asthma risk (p ≤ .02). The interaction was replicated in an independent cohort for rs10183914 (p = .04). Interactions between SHS exposure and NFE2L2 genotype were also associated with an increased risk of hospitalization (p = .016). In stratified analyses, NFE2L2 genotype was associated with daily asthma symptoms in children with SHS exposure (OR = 3.1; p = .048). No association was found in children without SHS exposure. Examination of publicly available chromatin immunoprecipitation followed by sequencing (ChIP-seq) data sets confirmed the presence of active histone marks and binding sites for particular transcription factors overlapping the coordinates for the significantly associated SNPs. CONCLUSIONS AND CLINICAL RELEVANCE: Our study provides evidence that NFE2L2 genotype interacts with SHS exposure to affect both asthma risk and severity in children and identifies a population of children at increased risk of asthma development.

Indexed as

AsthmaChildChild, PreschoolFemaleGene-Environment InteractionGenetic Predisposition to DiseaseHumansMaleNF-E2-Related Factor 2Polymorphism, Single NucleotideSeverity of Illness IndexTobacco Smoke PollutionNFE2L2 protein, humanNF-E2-Related Factor 2Tobacco Smoke Pollutionasthmachildrengene-environment interactionNFE2L2second-hand smoke

Identifiers

PMID33382170
PMCPMC9248014
OpenAlexW3115169834

What OpenQuestion holds

Textmetadata
LicenceTDM
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.