Vitamin D

A vitamin that includes both CHOLECALCIFEROLS and ERGOCALCIFEROLS, which have the common effect of preventing or curing RICKETS in animals. It can also be viewed as a hormone since it can be formed in SKIN by action of ULTRAVIOLET RAYS upon the precursors, 7-dehydrocholesterol and ERGOSTEROL, and acts on VITAMIN D RECEPTORS to regulate CALCIUM in opposition to PARATHYROID HORMONE.

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Tree Number(s): D04.210.500.812.768

MeSH Unique ID: D014807

Registry Number: 1406-16-2

See Also:

• Receptors, Calcitriol

Pharmacologic Action:

• Vitamins
• Bone Density Conservation Agents

All MeSH Categories
Chemicals and Drugs Category
Polycyclic Compounds
Fused-Ring Compounds
Steroids
Secosteroids
Vitamin D
Cholecalciferol
Hydroxycholecalciferols +
Ergocalciferols
25-Hydroxyvitamin D 2
Dihydrotachysterol