Evidence map›Paper›PMID 31451642›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Human pollution exposure correlates with accelerated ultrastructural degradation of hair fibers.

Gregoire Naudin, Philippe Bastien, Sakina Mezzache, Erwann Trehu, Nasrine Bourokba, Brice Marc René Appenzeller, Jeremie Soeur, Thomas Bornschlögl

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. 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
3.8field-weighted citation impact, top 7% 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, 40 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Air Pollution and Skin Diseases.Annals of dermatology · 2025
    Review
  5. Proteomic Analysis of Single Hairs.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  6. Assessing the effect of cleansing products on artificially polluted human hairs and skin through in vivo and in vitro models.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2023
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. 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 2 institutions in 2 countries.

Gregoire NaudinAdvanced Research, L'Oréal Research & Innovation, 93601 Aulnay-sous-bois, France.
Philippe BastienAdvanced Research, L'Oréal Research & Innovation, 93601 Aulnay-sous-bois, France.
Sakina MezzacheAdvanced Research, L'Oréal Research & Innovation, 93601 Aulnay-sous-bois, France.
Erwann TrehuAdvanced Research, L'Oréal Research & Innovation, 93601 Aulnay-sous-bois, France.
Nasrine BourokbaAdvanced Research, L'Oréal Research & Innovation, 93601 Aulnay-sous-bois, France.
Brice Marc René AppenzellerHuman Biomonitoring Research Unit, Luxembourg Institute of Health, 1445 Strassen, Luxembourg.
Jeremie SoeurAdvanced Research, L'Oréal Research & Innovation, 93601 Aulnay-sous-bois, France.
Thomas BornschlöglAdvanced Research, L'Oréal Research & Innovation, 93601 Aulnay-sous-bois, France; thomas.bornschloegl@rd.loreal.com.
L'Oréal (France) · FRLuxembourg Institute of Health · LU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Exposure to pollution is a known risk factor for human health. While correlative studies between exposure to pollutants such as polycyclic aromatic hydrocarbons (PAHs) and human health exist, and while in vitro studies help to establish a causative connection, in vivo comparisons of exposed and nonexposed human tissue are scarce. Here, we use human hair as a model matrix to study the correlation of PAH pollution with microstructural changes over time. Two hundred four hair samples from 2 Chinese cities with distinct pollution exposure were collected, and chromatographic-mass spectrometry was used to quantify the PAH-exposure profiles of each individual sample. This allowed us to define a group of less contaminated hair samples as well as a more contaminated group. Using transmission electron microscopy (TEM) together with quantitative image analysis and blind scoring of 82 structural parameters, we find that the speed of naturally occurring hair-cortex degradation and cuticle delamination is increased in fibers with increased PAH concentrations. Treating nondamaged hair fibers with ultraviolet (UV) irradiation leads to a more pronounced cortical damage especially around melanosomes of samples with higher PAH concentrations. Our study shows the detrimental effect of physiological concentrations of PAH together with UV irradiation on the hair microstructure but likely can be applied to other human tissues.

Indexed as

Environmental PollutionAir PollutantsChinaEnvironmental ExposureEnvironmental PollutantsHairHumansPolycyclic Aromatic HydrocarbonsUltraviolet RaysAir PollutantsEnvironmental PollutantsPolycyclic Aromatic Hydrocarbonsair pollutioncortical damagetransmission electron microscopy

Identifiers

PMID31451642
PMCPMC6744867
OpenAlexW2970551848

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.