Ads
related to: 25 hydroxyvitamin d2+d3 ia 50 unitsebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
The name 25(OH)D refers to any combination of calcifediol (25-hydroxy-cholecalciferol), derived from vitamin D 3, and ercalcidiol (25-hydroxy-ergocalciferol), [1] derived from vitamin D 2. The first of these (also known as 25-hydroxy vitamin D3) is made by the body, or is sourced from certain animal foods or cholecalciferol supplements.
[40] [61] [62] Ultraviolet light alone - sunlight or tanning beds - can raise serum 25(OH)D concentration to a bit higher than 100 nmol/L, but not to a level that causes hypervitaminosis D, the reasons being that there is a limiting amount of the precursor 7-dehydrocholesterol synthesized in the skin and a negative feedback in the kidney ...
24,25-dihydroxyvitamin D 3 is formed from 25-hydroxyvitamin D 3 by the action of CYP24A1 (25-hydroxyvitamin D3-24-hydroxylase). CYP24A1 appears to be "a multicatalytic enzyme catalyzing most, if not all, of the reactions in the C-24/C-23 pathway of 25-OH-D 3 metabolism." [5]
The liver is required to transform vitamin D into 25-hydroxyvitamin D. This is an inactive metabolite of vitamin D but is a necessary precursor (building block) to create the active form of vitamin D. [1] The kidneys are responsible for converting 25-hydroxyvitamin D to 1,25-hydroxyvitamin D. This is the active form of vitamin D in the body.
Vitamin D is essential for bone health and immune function, and deficiency is common. Consoider one of these vitamin D supplements if you're not getting enough.
Research has shown that vitamin D3 tends to be more effective than vitamin D2 supplementation when trying to increase serum vitamin D levels, says Pelitera. “In bloodwork, we measure Vitamin D ...
25-Hydroxyvitamin D 1-alpha-hydroxylase (VD 1A hydroxylase) also known as calcidiol 1-monooxygenase [5] or cytochrome p450 27B1 (CYP27B1) or simply 1-alpha-hydroxylase is a cytochrome P450 enzyme that in humans is encoded by the CYP27B1 gene. [6] [7] [8]
Retrieved from "https://en.wikipedia.org/w/index.php?title=25-hydroxyvitamin_D&oldid=257668059"This page was last edited on 13 December 2008, at 10:34
Ads
related to: 25 hydroxyvitamin d2+d3 ia 50 unitsebay.com has been visited by 1M+ users in the past month