Evidence map›Paper›PMID 23895351›Full record

ArticleInhalation toxicology2013

Effects of copy center particles on the lungs: a toxicological characterization using a Balb/c mouse model.

Sandra Pirela, Ramon Molina, Christa Watson, Joel M Cohen, Dhimiter Bello, Philip Demokritou, Joseph Brain

Abstract read
In one paragraph

Article in Inhalation toxicology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing 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

34 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. The influence of PMExperimental and therapeutic medicine · 2019
    Article
  11. Review
  12. Review
  13. Oxidative stress and cell cycle arrest induced by short-term exposure to dustfall PMEnvironmental science and pollution research international · 2018
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

7 authors.

Sandra PirelaCenter for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard School of Public Health, Boston, MA 02115, USA.
Ramon Molina
Christa Watson
Joel M Cohen
Dhimiter Bello
Philip Demokritou
Joseph Brain

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SUSAN A KORRICK · 1985 to 2026
$44.6M
Training Program in Molecular and Integrative Physiological SciencesT32HL007118 · NHLBI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI LU, QUAN · 1985 to 2025
$14.3M
PUBLIC HEALTH TRAINING FOR UNDERREPRESENTED MINORITIESR25GM055353 · NIGMS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI KAWACHI, ICHIRO · 1998 to 2013
$6.8M
NHLBI NIH HHS HL007118NHLBI NIH HHS T32 HL007118NIEHS NIH HHS ES-000002NIEHS NIH HHS P30 ES000002NIGMS NIH HHS 5R25GM055353NIGMS NIH HHS R25 GM055353PHS HHS 212-2012-M-51174
6 · The paper itself

Abstract

contextPrinters and photocopiers release respirable particles into the air. Engineered nanomaterials (ENMs) have been recently incorporated into toner formulations but their potential toxicological effects have not been well studied.

objectiveTo evaluate the biological responses to copier-emitted particles in the lungs using a mouse model.

methodsParticulate matter (PM) from a university copy center was sampled and fractionated into three distinct sizes, two of which (PM0.1 and PM0.1-2.5) were evaluated in this study. The particles were extracted and dispersed in deionized water and RPMI/10% FBS. Hydrodynamic diameter and zeta potential were evaluated by dynamic light scattering. The toxicological potential of these particles was studied using 8-week-old male Balb/c mice. Mice were intratracheally instilled with 0.2, 0.6, 2.0 mg/kg bw of either the PM0.1 and PM0.1-2.5 size fractions. Fe2O3 and welding fumes were used as comparative materials, while RPMI/10% FBS was used as the vehicle control. Bronchoalveolar lavage (BAL) was performed 24 hours post-instillation. The BAL fluid was analyzed for total and differential cell counts, and biochemical markers of injury and inflammation.

resultsParticle size- and dose-dependent pulmonary effects were found. Specifically, mice instilled with PM0.1 (2.0 mg/kg bw) had significant increases in neutrophil number, lactate dehydrogenase and albumin compared to vehicle control. Likewise, pro-inflammatory cytokines were elevated in mice exposed to PM0.1 (2.0 mg/kg bw) compared to other groups.

conclusionOur results indicate that exposure to copier-emitted nanoparticles may induce lung injury and inflammation. Further exposure assessment and toxicological investigations are necessary to address this emerging environmental health pollutant.

Indexed as

InkPrintingAir PollutantsAlbuminsAnimalsBronchoalveolar Lavage FluidCytokinesLeukocyte CountL-Lactate DehydrogenaseLungMaleMiceMice, Inbred BALB CParticulate MatterAir PollutantsAlbuminsCytokinesL-Lactate DehydrogenaseParticulate Matter

Identifiers

PMID23895351
PMCPMC4393332

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.