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Vitamin D2 and D3 Separation by New Highly Hydrophobic UHPLC/HPLC PhaseYMC Europe GmbH
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Vitamin D is produced in the skin upon exposure to ultraviolet light (sunlight). It is activated in two steps to function as a key regulator of mineral ion homeostasis. Vitamin D becomes bound to the vitamin D binding protein, DBP, in the circulation and is transported to the liver where ...
人将呈现特有的病态。 根据这四个特点，人体一共需要13种维生素，也就是通常所说的13种必要维生素： 维生素A，维生素B，维生素C，维生素D，维生素E，维生素K，维生素H（生物素），维生素P，维生素PP，维生素M，维生素T，维生素U，水溶性维生素。 编辑本段 维生素A的生理功能 维生素A简介
on the risk and development of prostate cancer [11]. Furthermore, a U-shaped association between 25-hydroxyvitamin D levels and cancer risk has been reported [17], suggesting that either an increase or decrease in serum 25-hydroxyvitamin D is associated with an increased risk for prostate ...
We therefore collected data on 25-hydroxyvitamin D2/ D3 levels in the serum at recruitment to the Leeds Melanoma Cohort. A cohort has been recruited in the period 2000 till 2012, now comprised of 2180 cases. We analyzed the data on serum 25-hydroxyvitamin D2/D3 levels in the time ...
With the use of such definitions, it has been estimated that 1 billion people worldwide have vi- tamin D deficiency or insufficiency.7-12,15-22 Ac- cording to several studies, 40 to 100% of U.S. and European elderly men and women still living in the community (not in nursing homes)...
affording D2 a lower affinity for vitamin D-binding protein (DBP), increasing clearance and reduced bioavailability; thus, vitamin D3 is the main form of vitamin D used by humans. Generation of active, hormonal, vitamin D3 involves a series of non-enzymatic and enzymatic processes. Firstly, ...
Vitamin D deficiencies are linked to multiple human diseases. Optimizing its synthesis, physicochemical properties, and delivery systems while minimizing s