Cited by 539Vitamin D Research StudiesSkin Protection and AgingCholesterol and Lipid Metabolism

Spectral Character of Sunlight Modulates Photosynthesis of Previtamin D 3 and Its Photoisomers in Human Skin

MacLaughlin, J. A., Anderson, R. R., Holick, M. F.·1982·Science

Abstract

The photosynthesis of previtamin D 3 from 7-dehydrocholesterol in human skin was determined after exposure to narrow-band radiation or simulated solar radiation. The optimum wavelengths for the production of previtamin D 3 were determined to be between 295 and 300 nanometers. When human skin was exposed to 295-nanometer radiation, up to 65 percent of the original 7-dehydrocholesterol content was converted to previtamin D 3 . In comparison, when adjacent skin was exposed to simulated solar radiation, the maximum formation of previtamin D 3 was about 20 percent. Major differences in the formation of lumisterol 3 and tachysterol 3 from previtamin D 3 were also observed. It is concluded that the spectral character of natural sunlight has a profound effect on the photochemistry of 7-dehydrocholesterol in human skin.

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Crossref · 10.1126/science.6281884

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Authors
MacLaughlin, J. A., Anderson, R. R., & Holick, M. F.
Affiliations
Massachusetts General Hospital (US)
Venue
Science
Published
1982-05-28
Volume
216
Issue
4549
Pages
1001-1003
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2017458967
Cited by
539
References
10
Citations by year
2026: 5 · 2025: 10 · 2024: 11 · 2023: 15 · 2022: 8 · 2021: 23 · 2020: 20 · 2019: 15 · 2018: 19 · 2017: 22 · 2016: 25 · 2015: 23 · 2014: 29 · 2013: 22 · 2012: 31
FWCI
3.89
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Vitamin D Research Studies
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
previtamin D3, 7-dehydrocholesterol, vitamin D synthesis, human skin, solar spectrum, narrow-band radiation, simulated solar radiation, lumisterol, tachysterol, photoisomers, photochemistry, ultraviolet radiation
MeSH terms
Cholecalciferol, Dehydrocholesterols, Ergosterol, Humans, Isomerism, Photochemistry, Skin, Spectrum Analysis, Structure-Activity Relationship, Ultraviolet Rays, In Vitro Techniques

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