Evidence map›Paper›PMID 33989148›Full record

ArticleAmerican journal of respiratory cell and molecular biology2021

Current Smoking Alters Gene Expression and DNA Methylation in the Nasal Epithelium of Patients with Asthma.

Karosham D Reddy, Andy Lan, Ilse M Boudewijn, Senani N H Rathnayake, Gerard H Koppelman, Hananeh Aliee, Fabian Theis, Brian G Oliver, Maarten van den Berge, Alen Faiz

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2021. 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
1.1field-weighted citation impact, top 23% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Inflammasomes in respiratory diseases: from disease pathogenesis to drug development and use of multi-omics.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  2. Review
  3. Integrative multi-omics identifies CYP1B1 as a candidate molecular link between toxicant exposure and ferroptosis-related epithelial stress in COPD.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Early-life exposure to cigarette smoke primes lung function and DNA methylation changes atAmerican journal of physiology. Lung cellular and molecular physiology · 2023
    Article
  9. Article
  10. Elevated EVL Methylation Level in the Normal Colon Mucosa Is a Potential Risk Biomarker for Developing Recurrent Adenomas.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2023
    Article
  11. Article
  12. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 4 countries.

Karosham D ReddySchool of Life Sciences, University of Technology Sydney, Sydney, Australia.ORCID 0000-0001-9002-6930
Andy LanDepartment of Pulmonary Diseases.
Ilse M BoudewijnDepartment of Pulmonary Diseases.
Senani N H RathnayakeSchool of Life Sciences, University of Technology Sydney, Sydney, Australia.ORCID 0000-0002-5631-7264
Gerard H KoppelmanGroningen Research Institute for Asthma and COPD, and.
Hananeh AlieeGerman Research Center for Health and Environment (GmbH), Helmholtz Centre, Munich, Germany.
Fabian TheisGerman Research Center for Health and Environment (GmbH), Helmholtz Centre, Munich, Germany.
Brian G OliverSchool of Life Sciences, University of Technology Sydney, Sydney, Australia.
Maarten van den BergeGroningen Research Institute for Asthma and COPD, and.
Alen FaizSchool of Life Sciences, University of Technology Sydney, Sydney, Australia.
University of Technology Sydney · AUInstitute for Asthma and Allergy · USHelmholtz Zentrum München · DEUniversity Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Current smoking contributes to worsened asthma prognosis and more severe symptoms and limits the beneficial effects of corticosteroids. As the nasal epithelium can reflect smoking-induced changes in the lower airways, it is a relevant source to investigate changes in gene expression and DNA methylation. This study explores gene expression and DNA methylation changes in current and ex-smokers with asthma. Matched gene expression and epigenome-wide DNA methylation samples collected from nasal brushings of 55 patients enrolled in a clinical trial investigation of current and ex-smoker patients with asthma were analyzed. Differential gene expression and DNA methylation analyses were conducted comparing current smokers with ex-smokers. Expression quantitative trait methylation (eQTM) analysis was completed to explore smoking-relevant genes by CpG sites that differ between current and ex-smokers. To investigate the relevance of the smoking-associated DNA methylation changes for the lower airways, significant CpG sites were explored in bronchial biopsies from patients who had stopped smoking. A total of 809 genes and 18,814 CpG sites were differentially associated with current smoking in the nose. The

Indexed as

AdultAsthmaCytochrome P-450 CYP1A1Cytochrome P-450 CYP1B1DNA MethylationEpigenesis, GeneticFemaleGene ExpressionGenome-Wide Association StudyHumansMaleMiddle AgedNasal MucosaSmokersSmokingCYP1A1 protein, humanCYP1B1 protein, humanCytochrome P-450 CYP1A1Cytochrome P-450 CYP1B1asthmaDNA methylationgene expressionnasal epitheliumsmoking

Identifiers

PMID33989148
OpenAlexW3162286076

What OpenQuestion holds

Textmetadata
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.