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():
1. . 7 - Dehydrocholesterol pre vitamin D3 vitamin D3.
2. . () ʡ (D3) . (D2) . ѡ (D3) (D2) . () ϡ . 400 600 (01 = 0025 "). . () .
() : . () . ǡ ɡ . () . () (Hydroxylation) - (hydroxyvitamin D25). () ̡ () . Hydroxylation 1,25 Dihydroxy vitamin D. (). 1,25 Dihydroxy vitamin D : ǡ ǡ () .
ɡ ӡ () : .
() () ɡ () . () - hydroxyvitamin D25 1,25 Dihydroxy vitamin D . ʡ .
ӡ 1,25 Dihydroxy vitamin D (Receptors) - 1,25 Dihydroxy vitamin D. 1,25 Dihydroxy vitamin D (Osteoporosis). ߡ () . - 1,25 Dihydroxy vitamin D - 1,25 Dihydroxy vitamin D . ().
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() :
- .
- .
- ( - Multiple sclerosis .)
- (Osteoporosis) ( )
- ȡ .
()
(Osteoporosis) () . . () . () : ء ʡ ӡ (Cystic fibrosis) (Crohn's disease).
()
() ӡ () . ɡ 1,25 Dihydroxy vitamin D .
: \ \ \ http://www.webteb.com/general-health...#ixzz203rKQOuQ
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