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A method for the determination of the circulating concentration of vitamin D
T C Chen1, A K Turner, M F Holick
1Vitamin D, Skin, and Bone Research Laboratory, Boston University School of Medicine, Boston, MA 02118, USA.
The Journal of Nutritional Biochemistry
|May 1, 1990
Abstract
No abstract available in PubMed .
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Role of Skin in Vitamin D Synthesis
The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
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