Evidence map›Paper›PMID 23462851›Full record

ArticleMutagenesis2013

Thirdhand smoke causes DNA damage in human cells.

Bo Hang, Altaf H Sarker, Christopher Havel, Saikat Saha, Tapas K Hazra, Suzaynn Schick, Peyton Jacob, Virender K Rehan, Ahmed Chenna, Divya Sharan and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Mutagenesis, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% 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

83 citing papers in PubMed, 1 synthesis or guideline pooled it, 167 citations in OpenAlex.

  1. Analysis of Assessment Methods for Detecting Nicotine Residue and Its Impact on Humans: A Systematic Review.International journal of environmental research and public health · 2025
    Pooled it
  2. Trial
  3. Trial
  4. Thirdhand Smoke in the Homes of Medically Fragile Children: Assessing the Impact of Indoor Smoking Levels and Smoking Bans.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2016
    Trial
  5. Trial
  6. Article
  7. Review
  8. Article
  9. Low dose thirdhand smoke exposure enhances platelet functional responses in mice.Experimental biology and medicine (Maywood, N.J.) · 2026
    Article
  10. Review
  11. Memory under siege: the cognitive costs of smoking and vaping.Brain, behavior, & immunity - health · 2025
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Third-Hand Smoke Exacerbates HTurkish journal of pharmaceutical sciences · 2024
    Article
  18. Article
  19. Article
  20. Article

23 more citing papers are in PubMed but not listed here.

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

13 authors at 5 institutions in 1 country.

Bo HangLife Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Bo_Hang@lbl.gov
Altaf H Sarker
Christopher Havel
Saikat Saha
Tapas K Hazra
Suzaynn Schick
Peyton Jacob
Virender K Rehan
Ahmed Chenna
Divya Sharan
Mohamad Sleiman
Hugo Destaillats
Lara A Gundel
Lawrence Berkeley National Laboratory · USSan Francisco General Hospital · USThe University of Texas Medical Branch at Galveston · USUCLA Medical Center · USUniversity of California, San Francisco · US

Funding

UCLA Clinical and Translational Science InstituteUL1TR000124 · NCATS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI DUBINETT, STEVEN M. · 2012 to 2015
$57.0M
Research Support CoreP30DA012393 · NIDA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ST.HELEN, GIDEON · 1999 to 2024
$17.1M
Liquid Chromatograph-Triple Quadrupole Mass SpectrometerS10RR026437 · NCRR · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JACOB, PEYTON · 2010 to 2010
$448k
NCATS NIH HHS UL1 TR000124NCRR NIH HHS S10 RR026437NIDA NIH HHS P30 DA012393
6 · The paper itself

Abstract

Exposure to thirdhand smoke (THS) is a newly described health risk. Evidence supports its widespread presence in indoor environments. However, its genotoxic potential, a critical aspect in risk assessment, is virtually untested. An important characteristic of THS is its ability to undergo chemical transformations during aging periods, as demonstrated in a recent study showing that sorbed nicotine reacts with the indoor pollutant nitrous acid (HONO) to form tobacco-specific nitrosamines (TSNAs) such as 4-(methylnitrosamino)-4-(3-pyridyl)butanal (NNA) and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). The goal of this study was to assess the genotoxicity of THS in human cell lines using two in vitro assays. THS was generated in laboratory systems that simulated short (acute)- and long (chronic)-term exposures. Analysis by liquid chromatography-tandem mass spectrometry quantified TSNAs and common tobacco alkaloids in extracts of THS that had sorbed onto cellulose substrates. Exposure of human HepG2 cells to either acute or chronic THS for 24h resulted in significant increases in DNA strand breaks in the alkaline Comet assay. Cell cultures exposed to NNA alone showed significantly higher levels of DNA damage in the same assay. NNA is absent in freshly emitted secondhand smoke, but it is the main TSNA formed in THS when nicotine reacts with HONO long after smoking takes place. The long amplicon-quantitative PCR assay quantified significantly higher levels of oxidative DNA damage in hypoxanthine phosphoribosyltransferase 1 (HPRT) and polymerase β (POLB) genes of cultured human cells exposed to chronic THS for 24h compared with untreated cells, suggesting that THS exposure is related to increased oxidative stress and could be an important contributing factor in THS-mediated toxicity. The findings of this study demonstrate for the first time that exposure to THS is genotoxic in human cell lines.

Indexed as

DNA DamageCell LineComet AssayDNA BreaksHumansMutagensNitrous AcidOxidative StressTobacco Smoke PollutionMutagensNitrous AcidTobacco Smoke Pollution

Identifiers

PMID23462851
PMCPMC3681537
OpenAlexW2189202059

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.