Evidence map›Paper›PMID 31661571›Full record

ArticlePhotodermatology, photoimmunology & photomedicine2020

High-energy visible light at ambient doses and intensities induces oxidative stress of skin-Protective effects of the antioxidant and Nrf2 inducer Licochalcone A in vitro and in vivo.

Tobias Mann, Kerstin Eggers, Frank Rippke, Mirko Tesch, Anette Buerger, Maxim E Darvin, Sabine Schanzer, Martina C Meinke, Jürgen Lademann, Ludger Kolbe

Abstract read
In one paragraph

Article in Photodermatology, photoimmunology & photomedicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–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

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. Article
  5. Dilating the aging clock with light.Innovation (Cambridge (Mass.)) · 2026
    Review
  6. Visible light induces skin darkening in vivo: comparative pilot studies reveal enhanced susceptibility in melasma and its mitigation by a human tyrosinase inhibitor.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
    Article
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  14. Review
  15. Article
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  20. Impact of blue light on skin pigmentation in patients with melasma.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
    Observational
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

10 authors.

Tobias MannBeiersdorf AG, Research and Development, Hamburg, Germany.
Kerstin EggersBeiersdorf AG, Research and Development, Hamburg, Germany.
Frank RippkeBeiersdorf AG, Research and Development, Hamburg, Germany.
Mirko TeschBeiersdorf AG, Research and Development, Hamburg, Germany.
Anette BuergerBeiersdorf AG, Research and Development, Hamburg, Germany.
Maxim E DarvinCenter of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Sabine SchanzerCenter of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Martina C MeinkeCenter of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Jürgen LademannCenter of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Ludger KolbeBeiersdorf AG, Research and Development, Hamburg, Germany.ORCID https://orcid.org/0000-0001-8608-8901

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSolar radiation causes skin damage through the generation of reactive oxygen species (ROS). While UV filters effectively reduce UV-induced ROS, they cannot prevent VIS-induced (400-760 nm) oxidative stress. Therefore, potent antioxidants are needed as additives to sunscreen products.

methodsWe investigated VIS-induced ROS formation and the photoprotective effects of the Nrf2 inducer Licochalcone A (LicA).

resultsVisible spectrum of 400-500 nm dose-dependently induced ROS in cultured human fibroblasts at doses equivalent to 1 hour of sunshine on a sunny summer day (150 J/cm

conclusionLicA may be a useful additive antioxidant for sunscreens.

Indexed as

AntioxidantsOxidative StressSunscreening AgentsChalconesDermisFibroblastsGlycyrrhizaHumansNF-E2-Related Factor 2SunlightAntioxidantsChalconeslicochalcone ANFE2L2 protein, humanNF-E2-Related Factor 2Sunscreening Agentsantioxidantlicochalcone Areactive oxygen speciessunscreenvisible light

Identifiers

PMID31661571
PMCPMC7078816

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.