7-Dehydrocholesterol (7-DHC) is a zoosterol that functions in the serum as a cholesterol precursor, and is photochemically converted to vitamin D3 in...
12 KB (1,110 words) - 21:39, 21 August 2024
7-Dehydrocholesterol reductase, also known as DHCR7, is a protein that in humans is encoded by the DHCR7 gene. The protein encoded by this gene is an enzyme...
11 KB (1,486 words) - 03:12, 11 July 2024
Cholecalciferol (redirect from Activated 7-dehydrocholesterol)
"VitaminDSynthesis_WP1531". 7-Dehydrocholesterol is the precursor of cholecalciferol. Within the epidermal layer of skin, 7-dehydrocholesterol undergoes an electrocyclic...
41 KB (4,157 words) - 16:35, 28 August 2024
Smith–Lemli–Opitz syndrome (redirect from 7-dehydrocholesterol reductase deficiency)
multiple malformation syndrome caused by a mutation in the enzyme 7-Dehydrocholesterol reductase encoded by the DHCR7 gene. It causes a broad spectrum of...
56 KB (6,560 words) - 23:49, 7 July 2024
defined and shown to result from the ultraviolet irradiation of 7-dehydrocholesterol. Although a chemical nomenclature for vitamin D forms was recommended...
163 KB (17,848 words) - 09:24, 29 August 2024
a lubricant grease where corrosion would otherwise be a problem. 7-Dehydrocholesterol from lanolin is used as a raw material for producing vitamin D3 by...
19 KB (2,169 words) - 22:33, 7 August 2024
of vitamin K. Provitamin D2 is ergosterol, and provitamin D3 is 7-dehydrocholesterol. They are converted by UV light into vitamin D. The human body produces...
2 KB (208 words) - 01:34, 15 June 2024
colestolone. 7-Dehydrocholesterol reductase (7-DHCR) inhibitors such as AY-9944 and BM-15766 inhibit the production of cholesterol from 7-dehydrocholesterol, one...
37 KB (2,107 words) - 17:27, 8 June 2024
selection for lighter skin that allows UV rays to produce vitamin D from 7-dehydrocholesterol. Conversely, latitudes near the equator have selection for darker...
46 KB (4,731 words) - 15:34, 11 August 2024
specifically UVB light of wavelengths between 295 and 300 nm, acting on 7-dehydrocholesterol in the epidermal layers of the skin. The B ring of the steroid nucleus...
5 KB (266 words) - 20:36, 16 July 2024