Evidence map›Paper›PMID 30633296›Full record

ArticlePhotochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology2019

Pigment genes not skin pigmentation affect UVB-induced vitamin D.

Pameli Datta, Peter Alshede Philipsen, Peter Olsen, Bibi Petersen, Jeppe Dyrberg Andersen, Niels Morling, Hans Christian Wulf

Abstract read
PubMed Publisher
In one paragraph

Article in Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. 25-Hydroxyvitamin DCommunications medicine · 2026
    Article
  3. Article
  4. Article
  5. Navigating Complexities: Vitamin D, Skin Pigmentation, and Race.The Journal of clinical endocrinology and metabolism · 2024
    Article
  6. Review
  7. Article
  8. Article
  9. A revised action spectrum for vitamin D synthesis by suberythemal UV radiation exposure in humans in vivo.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  10. Article
  11. Review
  12. Article
  13. The vitamin D-folate hypothesis in human vascular health.American journal of physiology. Regulatory, integrative and comparative physiology · 2019
    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

7 authors at 3 institutions in 1 country.

Pameli DattaDepartment of Dermatology D92, Copenhagen University Hospital, Bispebjerg Hospital, Nielsine Nielsens Vej 17, Copenhagen, NV, 2400, Denmark. pameli@mail.dk.
Peter Alshede PhilipsenDepartment of Dermatology D92, Copenhagen University Hospital, Bispebjerg Hospital, Nielsine Nielsens Vej 17, Copenhagen, NV, 2400, Denmark.
Peter OlsenDepartment of Dermatology D92, Copenhagen University Hospital, Bispebjerg Hospital, Nielsine Nielsens Vej 17, Copenhagen, NV, 2400, Denmark.
Bibi PetersenDepartment of Dermatology D92, Copenhagen University Hospital, Bispebjerg Hospital, Nielsine Nielsens Vej 17, Copenhagen, NV, 2400, Denmark.
Jeppe Dyrberg AndersenSection of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V's Vej 11, Copenhagen, 2100, Denmark.
Niels MorlingSection of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V's Vej 11, Copenhagen, 2100, Denmark.
Hans Christian WulfDepartment of Dermatology D92, Copenhagen University Hospital, Bispebjerg Hospital, Nielsine Nielsens Vej 17, Copenhagen, NV, 2400, Denmark.
Bispebjerg Hospital · DKCopenhagen University Hospital · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Skin pigmentation is believed to contribute to the generally low serum 25-hydroxyvitamin D (25(OH)D) concentrations observed in darker-skinned persons. The influence of measured skin pigmentation on UVB-induced 25(OH)D increase was investigated together with 9 demographic and 13 genetic parameters (pigment SNPs). Forty participants representing a wide range in measured skin pigmentation were exposed to identical UVB doses on identical body areas over nine weeks with weekly measurements of serum 25(OH)D. This study took place in Denmark during winter, a period with negligible ambient UVB, so variation in 25(OH)D synthesis was not influenced by latitude, season, sun and clothing habits. The increase in 25(OH)D concentration displayed considerable variation (range: 2.9 to 139 nmol L-1). Constitutive and facultative skin pigmentation exerted separate influence on the variation of the UVB-induced linear 25(OH)D increase. However, this influence was statistically non-significant in the presence of separate significant pigment SNPs. The variation in the 25(OH)D increase in the combined linear model was not explained by measured skin pigmentation but by sex, height, age and seven SNPs located in the ASIP, MTAP, MIR196A29 and Solute Carrier Family genes. This linear model including individual intercepts and the 10 parameters influencing the slope explained 77.4% of the variation. This study confirmed the influence of sex, age and height on 25(OH)D increase and found that pigment genes provided a better relation to UVB-induced 25(OH)D increase compared to the actual measured skin pigmentation. Therefore, only investigating skin pigmentation obscures other causal parameters for low 25(OH)D.

Indexed as

Ultraviolet RaysAdultFemaleGenotyping TechniquesHumansMaleMiddle AgedPolymorphism, Single NucleotideSeasonsSkin PigmentationVitamin DYoung Adult25-hydroxyvitamin DVitamin D

Identifiers

PMID30633296
OpenAlexW2908430127

What OpenQuestion holds

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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.