Evidence map›Paper›PMID 26842231›Full record

ArticleArchives of dermatological research2016

Exploration of scalp surface lipids reveals squalene peroxide as a potential actor in dandruff condition.

Roland Jourdain, Alain Moga, Philippe Vingler, Charles El Rawadi, Florence Pouradier, Luc Souverain, Philippe Bastien, Nicolas Amalric, Lionel Breton

Open access · hybridAbstract read
In one paragraph

Article in Archives of dermatological research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 51 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Significance of Singlet Oxygen Molecule in Pathologies.International journal of molecular sciences · 2023
    Review
  16. Article
  17. Targeted Delivery of Zinc Pyrithione to Skin Epithelia.International journal of molecular sciences · 2021
    Review
  18. Host Responses in anFrontiers in cellular and infection microbiology · 2020
    Article
  19. Frontiers in cellular and infection microbiology · 2020
    Review
  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

9 authors at 1 institution in 1 country.

Roland JourdainL'OREAL Research and Innovation, Aulnay-sous-Bois, France. rjourdain@rd.loreal.com.
Alain MogaSynelvia SAS, Labège, France.
Philippe VinglerL'OREAL Research and Innovation, Aulnay-sous-Bois, France.
Charles El RawadiL'OREAL Research and Innovation, Aulnay-sous-Bois, France.
Florence PouradierL'OREAL Research and Innovation, Saint-Ouen, France.
Luc SouverainL'OREAL Research and Innovation, Aulnay-sous-Bois, France.
Philippe BastienL'OREAL Research and Innovation, Aulnay-sous-Bois, France.
Nicolas AmalricSynelvia SAS, Labège, France.
Lionel BretonL'OREAL Research and Innovation, Aulnay-sous-Bois, France.
L'Oréal (France) · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dandruff is a common but complex disorder with three major contributing factors: (1) individual predisposition, (2) scalp sebum and (3) Malassezia yeast colonization. To obtain further insights into the role of sebum in dandruff biogenesis, we analyzed scalp lipid species in a cohort of ten dandruff-free (control) and ten dandruff-afflicted volunteers by gas chromatography coupled to mass spectrometry. Lipid peroxidation levels and biochemical markers of oxidative stress were also assessed. Squalene, a major sebum component, was significantly more peroxidized in dandruff-affected scalps, resulting in significantly higher ratios of squalene monohydroperoxide (SQOOH)/squalene. This was observed when comparing dandruff-affected zones of dandruff subjects to both their non-affected zones and control subjects. In addition, other biomarkers such as malondialdehyde indicated that oxidative stress levels were raised on dandruff scalps. Surprisingly, differences regarding either free or bound fatty acids were fairly rare and minor. Certain novel findings, especially squalene peroxidation levels, were then confirmed in a validation cohort of 24 dandruff-affected subjects, by comparing dandruff-affected and non-dandruff zones from the same individuals. As SQOOH can induce both keratinocyte inflammatory responses and hyperproliferation in vitro, we hypothesized that increased SQOOH could be considered as a new etiological dandruff factor via its ability to impair scalp barrier function. Our results also indicated that Malassezia could be a major source of squalene peroxidation on the scalp.

Indexed as

Lipid PeroxidationAdultBiomarkersCohort StudiesDandruffFatty AcidsFemaleGas Chromatography-Mass SpectrometryHealthy VolunteersHumansKeratinocytesMalasseziaMaleMalondialdehydeMiddle AgedOxidative Stress2,3-oxidosqualeneBiomarkersFatty AcidsMalondialdehydeSqualeneDandruff scalpLipidsMalasseziaOxidative stressSebumSqualene peroxide

Identifiers

PMID26842231
PMCPMC4796319
OpenAlexW2258195058

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.