7-dehydrocholesterol

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7-dehydrocholesterol /7-de·hy·dro·cho·les·ter·ol/ (de-hi″dro-kŏ-les´ter-ol) a sterol present in skin which, on ultraviolet irradiation, produces vitamin D.

activated 7-dehydrocholesterol cholecalciferol.

7-de·hy·dro·cho·les·ter·ol (-d

-h

-k

-l

-rôl

, -r

)

A provitamin present in the skin of humans as well as the milk of mammals that becomes vitamin D₃ when exposed to ultraviolet light.

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activated 7-dehydrocholesterol cholecalciferol dehydrocholesterol provitamin provitamin A provitamin D2 Smith-Lemli-Opitz syndrome vitamin vitamin A vitamin B complex vitamin B1 vitamin B12 vitamin B2 Vitamin B6 vitamin C vitamin D vitamin D 3 vitamin D3 vitamin E			Because of the effect of sunlight on 7-dehydrocholesterol in the skin, vitamin D levels are affected by such variables as season, geographic location, population ethnicity, and gender. Details create the big picture by Tiffany, Debbi / Medical Laboratory Observer 3] The multistep biochemical pathway from acetoacetyl-CoA to cholesterol includes 7-dehydrocholesterol as its immediate precursor (Figure 1). Benefits of vitamin D supplementation by Kauffman, Joel M. / Journal of American Physicians and Surgeons Older individuals are at greater risk for deficiency, because aging lowers the amount of 7-dehydrocholesterol in the skin and thus the ability to produce vitamin D, as well as lower absorption. Essential concepts and updates in HRT, breast cancer, and osteoporosis by Hudson, Tori / Townsend Letter			5-HIAA 5-HT 5-HTP 5-hydroxy-N 5-hydroxyindole acetic acid 5-hydroxyindoleacetic acid 5-hydroxyindoleacetic acid test 5-hydroxytryptamine 5-hydroxytryptophan 5-methoxy-N-methyl-tryptamine 5-methoxydimethyltryptamine 5-methyltetrahydrofolate 5-oxoproline 5-oxoprolinuria 55 rule 5FC 6-aminopenicillanic acid 6-mercaptopurine 6-MP 6-phosphofructokinase 6-phosphofructokinase 1 6-phosphofructokinase 2 6-phosphogluconate pathway 60S ribosomal particle 7-day fever 7-dehydrocholesterol 70s, the rules of 72-Hour Fast 8-hydroxyquinoline 8-methoxypsoralen 8-MOP 9-cis-retinoic acid 9-fluorocortisol 90-90 traction 911 99mTc sulfur colloid 99mTc-labeled RBC scintigraphy a Å a 1 -antitrypsin A 2 a a A antigen A band A cell A chain A CRASH PLAN A fiber A fibers a nativitate A point			7 segment display 7 segment display 7 September 7 Sisters 7 weeks war 7 Wonders of the Ancient World 7 World Trade Center 7 year war 7 year war 7 Year's War 7 Year's War 7 years war 7 years war 7 Years' War 7 Years' War 7&7 7,8-Diacetoxy-4-Methyl Coumarin 7,8-dihydro-6-hydroxymethylpterin-pyrophosphokinase 7-6 7-ACA 7-Amino-4-Methylcoumarin-3-acetic Acid 7-Aminocephalosporanic Acid 7-bit ASCII 7-bit ASCII 7-Chloro-4-Hydroxyquinoline 7-Chloro-4-Hydroxyquinoline-3-Carboxylate 7-Chloro-4-Hydroxyquinoline-3-Carboxylic Acid 7-D-glucoside 7-day fever 7-dehydrocholesterol 7-dehydrocholesterol reductase deficiency 7-DOF 7-Eleven, Inc 7-Ethoxy-4-Trifluoromethyl-Coumarin Deethylase 7-Ethoxycoumarin O-Deethylase 7-Ethoxyresorufin O-Dealkylase 7-Fluoro-4-Hydroxyquinoline 7-Fluoro-4-Hydroxyquinoline-3-Carboxylate 7-hydroxycoumarin 7-membered 7-O-MPA-Beta-Glucuronide 7-Propoxycoumarin O-Depropylase 7-segment digit 7-segment digit 7-segment display 7-segment display 7-track 7-track 7-Zip 7.1 channel 7.1 channel 7.1ch 7.1ch 7.2 channel 7.2 channel 7.62 RK 54 7.62 RK 54 TP 7/23 7/24 7/24

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