Translations:7-Dehydrocholesterol/4/en: Difference between revisions

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Message definition (7-Dehydrocholesterol)
==Radiation==
Synthesis of pre-vitamin D<sub>3</sub> in the skin involves [[UVB radiation]], which effectively penetrates only the epidermal layers of skin. 7-Dehydrocholesterol absorbs UV light most effectively at [[wavelength]]s between 295 and 300 [[nanometer|nm]] and, thus, the production of vitamin D<sub>3</sub> will occur primarily at those wavelengths. The two most important factors that govern the generation of pre-vitamin D<sub>3</sub> are the quantity (intensity) and quality (appropriate wavelength) of the UVB irradiation reaching the 7-dehydrocholesterol deep in the stratum basale and stratum spinosum. Light-emitting diodes ([[LED]]s) can be used to produce the radiation.

Radiation

Synthesis of pre-vitamin D3 in the skin involves UVB radiation, which effectively penetrates only the epidermal layers of skin. 7-Dehydrocholesterol absorbs UV light most effectively at wavelengths between 295 and 300 nm and, thus, the production of vitamin D3 will occur primarily at those wavelengths. The two most important factors that govern the generation of pre-vitamin D3 are the quantity (intensity) and quality (appropriate wavelength) of the UVB irradiation reaching the 7-dehydrocholesterol deep in the stratum basale and stratum spinosum. Light-emitting diodes (LEDs) can be used to produce the radiation.

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