| Autor: |
Masato Hatao, Ross StC Barnetson, Aamir Badruddin, Gary M. Halliday, Terence S. C. Poon, Johanna M. Kuchel, Haruhi Shiseido Res. Cen. Iwaki |
| Rok vydání: |
2007 |
| Předmět: |
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| Zdroj: |
Photochemistry and Photobiology. 78:331-336 |
| ISSN: |
0031-8655 |
| Popis: |
Very little information exists on the amount of natural and artificial UV light required to cause sunburn and tanning in individuals with very pale skin who are at the greatest risk of developing skin cancer. We have investigated minimal erythema dose (MED) and minimal melanogenic dose (MMD) in a group of 31 volunteers with Fitzpatrick skin types I and II using an Oriel 1000 W xenon arc solar simulator and natural sunlight in Sydney, Australia. We measured the erythemal and melanogenic responses using conventional visual scoring, a chromameter and an erythema meter. We found that the average MED measured visually using the artificial UV source was 68.7 ± 3.3 mJ/cm2 (3.4 ± 0.2 standard erythema doses [SED]), which was significantly different from the MED of sunlight, which was 93.6 ± 5.6 mJ/cm2 (P < 0.001) (11.7 ± 0.7 SED). We also found significant correlations between the solar-simulated MED values, the melanin index (erythema meter) and the L* function (chromameter). The average MMD (obtained i... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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