calciferol

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calciferol

 [kal-sif´er-ol]
1. see vitamin D.

er·go·cal·cif·er·ol

(er'gō-kal-sif'ĕr-ol),
Activated ergosterol, the vitamin D of plant origin; it arises from ultraviolet irradiation of ergosterol, which is cleaved at the 9,10 bond and develops a double bond between C-10 and C-19; used in prophylaxis and treatment of vitamin D deficiency.

calciferol

/cal·cif·er·ol/ (kal-sif´er-ol)
1. a compound having vitamin D activity, e.g., cholecalciferol or ergocalciferol.

calciferol

(kăl-sĭf′ə-rôl′, -rōl′)

calciferol

[kalsif′ərôl]
Etymology: L, calx, lime, ferre, to bear
a fat-soluble, crystalline unsaturated alcohol produced by ultraviolet irradiation of ergosterol in plants. It is used as a dietary supplement in the prophylaxis and treatment of rickets, osteomalacia, and other hypocalcemic disorders. Also called ergocalciferol, oleovitamin D2, vitamin D2. See also rickets, viosterol.

calciferol

A vitamin D derived from steroids by breaking the B ring’s 9-10 bond (e.g., cholecalciferol and ergocalciferol), which is produced by the body when exposed to UV light. Supplemental vitamin D3 reduces all-cause mortality, especially in elderly women, an effect not seen with vitamin D2, alfacalcidol or calcitriol (intrinsic vitamin D). However, too much or too little vitamin D is associated with increased mortality in a U-shaped risk curve.

calciferol

Vitamin D. A fat-soluble vitamin necessary for the absorption of calcium from the intestine. Deficiency causes RICKETS in infants and OSTEOMALACIA in adults.

calciferol

or

vitamin D2

a compound that has vitamin D properties and is obtained by ultraviolet irradiation of ergosterol.

calciferol

vitamin D synthesized within skin under influence of sunlight; see ergocalciferol

er·go·cal·cif·er·ol

(ĕr'gō-kal-sif'ĕr-ol)
Activated ergosterol, the vitamin D of plant origin; used in prophylaxis and treatment of vitamin D deficiency.
Synonym(s): calciferol, vitamin D2.

calciferol

vitamin d2; ergocalciferol.

calciferol-25-hydroxylase
a hepatic microsomal enzyme which controls the conversion of cholecalciferol to 25-hydroxycholecalciferol.
References in periodicals archive ?
WASHINGTON, March 19 /PRNewswire/ -- With spring upon us, there is no better time to shine the spotlight on the sunshine vitamin and the important role it plays in our health.
Fake tanning brand Fake Bake has started adding vitamin D to its products, meaning you get a naturallooking fake tan and a boost of the sunshine vitamin at the same time.
Health professionals can also download a shorter flier to share with their clients, called "Vitamin D: What You Need to Know about the Sunshine Vitamin," which reflects some of the new research as well as practical tips for achieving adequate intake of vitamin D.
ALMOST half the population is suffering sunshine vitamin deficiency, a study has revealed.
Known as the sunshine vitamin because the body naturally makes it when exposed to the sun, vitamin D is essential to optimal absorption of calcium, needed for bone deposition.
AS THE days get shorter and duller, the UK gets less and less sunlight - which means its residents get less and less vitamin D -the sunshine vitamin.
Byline: As National Vitamin D Awareness Week gets under way, LISA SALMON reports on how children can get more of this essential sunshine vitamin
The scientists measured blood levels of vitamin D, also known as the sunshine vitamin, in 1,658 men and women with an average age of 73 and without dementia at the start of the study.
Survey commissioned by Vitamin D Mission shows parents are in the dark about the lack of sunshine vitamin during winter and the importance of vitamin D to their children's diet [sup.
While earlier studies have suggested that a lack of the sunshine vitamin is linked to an increased risk of Alzheimer's disease, this study found that people with very low vitamin D levels were more than twice as likely to develop any kind of dementia.
Dr Tijani pointed out that Vitamin D was often known as the sunshine vitamin as the body produces it in response to sunlight, however it can also be included in the diet, naturally occurring in some fish and egg yolk as well as in fortified functional dairy and grain products.