Evidence map›Paper›PMID 32092410›Full record

ReviewFree radical biology & medicine2020

Air pollutants disrupt iron homeostasis to impact oxidant generation, biological effects, and tissue injury.

Andrew J Ghio, Joleen M Soukup, Lisa A Dailey, Michael C Madden

Open access · greenAbstract readReview
In one paragraph

Review in Free radical biology & medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Article
  3. The Role of Particle Inhalation in Idiopathic Pulmonary Fibrosis.International journal of molecular sciences · 2025
    Review
  4. Cyanobacterial blooms, iron, and environmental pollutants.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2024
    Review
  5. Article
  6. Article
  7. Asbestos and Iron.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Article
  10. Ultraviolet Light Protection: Is It Really Enough?Antioxidants (Basel, Switzerland) · 2022
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Oxidative stress in air pollution research.Free radical biology & medicine · 2020
    Review
  16. Article
  17. 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

4 authors at 1 institution in 1 country.

Andrew J GhioFrom the National Health and Environmental Effects Research Laboratory, Environmental Protection Agency, Chapel Hill, NC, USA. Electronic address: ghio.andy@epa.gov.
Joleen M SoukupFrom the National Health and Environmental Effects Research Laboratory, Environmental Protection Agency, Chapel Hill, NC, USA.
Lisa A DaileyFrom the National Health and Environmental Effects Research Laboratory, Environmental Protection Agency, Chapel Hill, NC, USA.
Michael C MaddenFrom the National Health and Environmental Effects Research Laboratory, Environmental Protection Agency, Chapel Hill, NC, USA.
Environmental Protection Agency · US

Funding

Intramural EPA EPA999999
6 · The paper itself

Abstract

Air pollutants cause changes in iron homeostasis through: 1) a capacity of the pollutant, or a metabolite(s), to complex/chelate iron from pivotal sites in the cell or 2) an ability of the pollutant to displace iron from pivotal sites in the cell. Through either pathway of disruption in iron homeostasis, metal previously employed in essential cell processes is sequestered after air pollutant exposure. An absolute or functional cell iron deficiency results. If enough iron is lost or is otherwise not available within the cell, cell death ensues. However, prior to death, exposed cells will attempt to reverse the loss of requisite metal. This response of the cell includes increased expression of metal importers (e.g. divalent metal transporter 1). Oxidant generation after exposure to air pollutants includes superoxide production which functions in ferrireduction necessary for cell iron import. Activation of kinases and phosphatases and transcription factors and increased release of pro-inflammatory mediators also result from a cell iron deficiency, absolute or functional, after exposure to air pollutants. Finally, air pollutant exposure culminates in the development of inflammation and fibrosis which is a tissue response to the iron deficiency challenging cell survival. Following the response of increased expression of importers and ferrireduction, activation of kinases and phosphatases and transcription factors, release of pro-inflammatory mediators, and inflammation and fibrosis, cell iron is altered, and a new metal homeostasis is established. This new metal homeostasis includes increased total iron concentrations in cells with metal now at levels sufficient to meet requirements for continued function.

Indexed as

Air PollutantsHomeostasisIronIron Chelating AgentsOxidantsParticulate MatterAir PollutantsIronIron Chelating AgentsOxidantsParticulate MatterAir pollutionIronOxidantsOzoneParticulate matter

Identifiers

PMID32092410
PMCPMC8274387
OpenAlexW3008120590

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.