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  2. Alfacalcidol - Wikipedia

    en.wikipedia.org/wiki/Alfacalcidol

    Alfacalcidol (or 1-hydroxycholecalciferol) is an analogue of vitamin D used for supplementation in humans and as a poultry feed additive. Alfacalcidol has a weaker impact on calcium metabolism [ 3 ] and parathyroid hormone levels [ 4 ] than calcitriol ; but significant effects on the immune system , including regulatory T cells . [ 5 ]

  3. Vitamin D toxicity - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D_toxicity

    Moreover, the active vitamin D analog, alfacalcidol, seems to protect patients from developing vascular calcification. [20] [21] Serum vitamin D has been found to correlate with calcified atherosclerotic plaque in African Americans as they have higher active serum vitamin D levels compared to Euro-Americans.

  4. Vitamin D analogues - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D_analogues

    These modified vitamin D analogues have a side chain or other modifications. They aim to reduce the classical renal and intestinal effects of calcitriol on calcium and phosphate homeostasis, from its effects on other biologic processes. [5]

  5. Calcifediol - Wikipedia

    en.wikipedia.org/wiki/Calcifediol

    Calcifediol, also known as calcidiol, 25-hydroxycholecalciferol, or 25-hydroxyvitamin D 3 (abbreviated 25(OH)D 3), [1] is a form of vitamin D produced in the liver by hydroxylation of vitamin D 3 (cholecalciferol) by the enzyme vitamin D 25-hydroxylase.

  6. 24,25-Dihydroxycholecalciferol - Wikipedia

    en.wikipedia.org/wiki/24,25-Dihydroxycholecalciferol

    24,25-Dihydroxycholecalciferol, also known as 24,25-dihydroxyvitamin D 3 and (24R)-hydroxycalcidiol (abbreviated as 24(R),25-(OH) 2 D 3), [1] is a compound which is closely related to 1,25-dihydroxyvitamin D 3, the active form of vitamin D 3.

  7. Paricalcitol - Wikipedia

    en.wikipedia.org/wiki/Paricalcitol

    Paricalcitol (chemically it is 19-nor-1,25-(OH) 2-vitamin D 2.Marketed by Abbott Laboratories under the trade name Zemplar) is a drug used for the prevention and treatment of secondary hyperparathyroidism (excessive secretion of parathyroid hormone) associated with chronic kidney failure.

  8. Doxercalciferol - Wikipedia

    en.wikipedia.org/wiki/Doxercalciferol

    Doxercalciferol is the vitamin D 2 analogue of alfacalcidol. [3] It undergoes 25-hydroxylation in the liver to become the active ercalcitriol , without the involvement of kidneys. [ 4 ]

  9. Vitamin D5 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D5

    1α-Hydroxyvitamin D 5 is a chemical derivative of vitamin D 5.The motive to study 1α-hydroxyvitamin D 5 as a potential pharmaceutical drug stemmed from the tendency of calcitriol, a natural metabolite produced in the kidney, to cause toxic hypercalcemia in patients when dosed at concentrations needed to interrupt prostate cancer cells' cycle and stimulate apoptosis.

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