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vitamin D CHORUS

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Location: http://chorus.rad.mcw.edu/doc/00659.html

Description: (1) (2) (3) 7-DHC -----> D3 -----> 25-OH vit D3 -----> 1,25-OH vit D3
(1) skin
* sunlight converts 7-dehydrocholesterol to vit D3 (cholecalciferol)
(2) liver 25-hydroxylation
(3) kidneys
* 1-hydroxylation to active form
* requires parathyroid hormone (PTH)
vit D promotes calcium absorption from bowel
* deficiency ==> rickets

Type: Reference Material
Author/Contact: Charles Kahn MD
Institution: CHORUS
Primary Subject/Category:

Language: English

Submitted by: admin
Hits: 117
Added: Thu Jan 31 2002
Last Modified: Tue Aug 04 2009