Quick Biochemistry - Vitamins (Section 5 - No. 2)
What process does calcitriol slow down?
Cholesterol into 7-dehydrocholesterol
Cholecalciferol into 1-hydroxycholecalciferol
Cholecalciferol into 25-hydroxycholecalciferol
25-Hydroxycholecalciferol into 1,25-dihydroxycholecalciferol