Evidence map›Paper›PMID 25741404›Full record

ArticleOxidative medicine and cellular longevity2015

Blue-violet light irradiation dose dependently decreases carotenoids in human skin, which indicates the generation of free radicals.

Staffan Vandersee, Marc Beyer, Juergen Lademann, Maxim E Darvin

Open access · hybridAbstract read
In one paragraph

Article in Oxidative medicine and cellular longevity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
11.3field-weighted citation impact, top 1% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 103 citations in OpenAlex.

  1. The cutaneous effects of blue light from electronic devices: a systematic review with health hazard identification.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2023
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Sunscreens in pigmentary disorders: time to revise the message.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2025
    Article
  9. Sunscreen Formula of FeO(OH)·HJournal of cosmetic dermatology · 2025
    Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Skin Protection by Carotenoid Pigments.International journal of molecular sciences · 2024
    Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Blue Light in Dermatology.Life (Basel, Switzerland) · 2021
    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

4 authors at 1 institution in 1 country.

Staffan VanderseeCharité-Universitätsmedizin Berlin, Department of Dermatology, Venereology and Allergology, Charitéplatz 1, 10117 Berlin, Germany.
Marc BeyerCharité-Universitätsmedizin Berlin, Department of Dermatology, Venereology and Allergology, Charitéplatz 1, 10117 Berlin, Germany.
Juergen LademannCharité-Universitätsmedizin Berlin, Department of Dermatology, Venereology and Allergology, Charitéplatz 1, 10117 Berlin, Germany.
Maxim E DarvinCharité-Universitätsmedizin Berlin, Department of Dermatology, Venereology and Allergology, Charitéplatz 1, 10117 Berlin, Germany.
Charité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In contrast to ultraviolet and infrared irradiation, which are known to facilitate cutaneous photoaging, immunosuppression, or tumour emergence due to formation of free radicals and reactive oxygen species, potentially similar effects of visible light on the human skin are still poorly characterized. Using a blue-violet light irradiation source and aiming to characterize its potential influence on the antioxidant status of the human skin, the cutaneous carotenoid concentration was measured noninvasively in nine healthy volunteers using resonance Raman spectroscopy following irradiation. The dose-dependent significant degradation of carotenoids was measured to be 13.5% and 21.2% directly after irradiation at 50 J/cm² and 100 J/cm² (P < 0.05). The irradiation intensity was 100 mW/cm². This is above natural conditions; the achieved doses, though, are acquirable under natural conditions. The corresponding restoration lasted 2 and 24 hours, respectively. The degradation of cutaneous carotenoids indirectly shows the amount of generated free radicals and especially reactive oxygen species in human skin. In all volunteers the cutaneous carotenoid concentration dropped down in a manner similar to that caused by the infrared or ultraviolet irradiations, leading to the conclusion that also blue-violet light at high doses could represent a comparably adverse factor for human skin.

Indexed as

LightAdultAntioxidantsCarotenoidsFemaleFree RadicalsHumansMaleMiddle AgedSkinSpectrum Analysis, RamanAntioxidantsCarotenoidsFree Radicals

Identifiers

PMID25741404
PMCPMC4337113
OpenAlexW2047608542

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.