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Cited by 1,436

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Aging decreases the capacity of human skin to produce vitamin D3.

Open access
MacLaughlin, J, Holick, M F·1985·Journal of Clinical Investigation

Abstract

An evaluation of surgically obtained skin (age range, 8-92 yr) revealed that there is an age-dependent decrease in the epidermal concentrations of provitamin D3 (7-dehydrocholesterol). To ascertain that aging indeed decreased the capacity of human skin to produce vitamin D3, some of the skin samples were exposed to ultraviolet radiation and the content of previtamin D3 was determined in the epidermis and dermis. The epidermis in the young and older subjects was the major site for the formation of previtamin D3, accounting for greater than 80% of the total previtamin D3 that was produced in the skin. A comparison of the amount of previtamin D3 produced in the skin from the 8- and 18-yr-old subjects with the amount produced in the skin from the 77- and 82-yr-old subjects revealed that aging can decrease by greater than twofold the capacity of the skin to produce previtamin D3. Recognition of this difference may be extremely important for the elderly, who infrequently expose a small area of skin to sunlight and who depend on this exposure for their vitamin D nutritional needs.

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Metadata

Authors
MacLaughlin, J., & Holick, M. F.
Venue
Journal of Clinical Investigation
Published
1985-10-01
Volume
76
Issue
4
Pages
1536-1538
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2003465607
Cited by
1,436
References
0
FWCI
6.09
Type
journal article
Language
en
Open access
bronze

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