Cited by 42Vitamin D Research StudiesRetinoids in leukemia and cellular processesParathyroid Disorders and Treatments

All-trans retinoic acid antagonizes the action of calciferol and its active metabolite, 1,25-dihydroxycholecalciferol, in rats

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Rohde, Cynthia M., DeLuca, Hector F.·2005·The Journal of Nutrition

Abstract

An antagonistic interaction between retinol and calciferol has been established. However, the mechanism by which this antagonism occurs is unclear. One possibility is that retinol affects the metabolism of calciferol. To investigate this hypothesis, retinol- and calciferol-depleted rats were given various amounts of ergocalciferol, cholecalciferol, 1alpha,25-dihydroxycholecalciferol [1,25(OH)2D3], or 24,24-difluoro-1alpha,25-dihydroxycholecalciferol [24-F2-1,25(OH)2D3] in combination with various amounts of retinyl acetate or all-trans retinoic acid (ATRA) in a series of studies. Rats administered 1720 or 3440 microg retinyl acetate once every 3 d for 33 d in combination with 25.8 ng ergocalciferol or 25 ng cholecalciferol every 3 d had lower serum calcium and greater serum phosphorus concentrations than rats fed 0 or 11.4 mug retinyl acetate every 3 d. In addition, rats fed 400 microg ATRA/d in combination with 25.8 ng ergocalciferol every 3 d, 25 ng cholecalciferol every 3 d, 2-5 ng 1,25(OH)2D3/d, or 0.5-1 ng 24-F2-1,25(OH)2D3/d had significantly lower serum calcium and higher serum phosphorus concentrations than rats not given ATRA in the diet. Therefore, both retinyl acetate and ATRA are able to antagonize the action of ergocalciferol and cholecalciferol in vivo. Additionally, ATRA antagonizes the in vivo action of 1,25(OH)2D3 and an analog, 24-F2-1,25(OH)2D3, that cannot be 24-hydroxylated. Together, these results suggest that retinol does not antagonize the action of calciferol by altering the metabolism of calciferol or 1,25(OH)2D3, but does so by another mechanism.

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  • High vitamin A levels decrease calcium absorption by mediating the vitamin D-calcium response.

    “and similarly, high vitamin A levels decrease calcium absorption by mediating the vitamin D-calcium response [274,275]”

    From Vitamin A Update: Forms, Sources, Kinetics, Detection, Function, Deficiency, Therapeutic Use and Toxicity (2021) · cites this paper as [275]

    The Discussion reports that high, nontoxic amounts of retinyl acetate inhibited vitamin D’s ability to maintain serum calcium in rats. The paper measured serum calcium, not calcium absorption, and says the mechanism of the vitamin A–vitamin D interaction remains unclear. It therefore supports an effect on the vitamin D–calcium response, but not the claimed decrease in absorption or a specific mediating mechanism. (LLM, conf=0.86)

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Research works printed but not linked: 2

  1. [20]20. Mangelsdorf, D. J., Umesono, K. & Evans, R. M. (1994) The retinoid receptors. In: The Retinoids: Biology, Chemistry, and Medicine (Sporn, M. B., Rob- erts, A. B. & Goodman, D. S., eds.), pp. 319 -349. Raven Press, New York, NY.
  2. [30]30. Horst, R. L. & Reinhardt, T. A. (1997) Vitamin D metabolism. In: Vitamin D (Feldman, D., Glorieux, F. H. & Pike, J. W., eds.), pp. 13-31. Academic Press, New York, NY.

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Authors
Rohde, C. M., & DeLuca, H. F.
Affiliations
  • Pfizer (United States) (US)
  • University of Wisconsin–Madison (US)
Corresponding author
DeLuca, Hector F.
Venue
The Journal of Nutrition
Publisher
Elsevier BV
Published
2005-07
Volume
135
Issue
7
Pages
1647-1652
ISSN
0022-3166 (ISSN-L)
OpenAlex
W2112717101
Cited by
42
References
31
Citations by year
2024: 1 · 2021: 2 · 2020: 3 · 2019: 1 · 2017: 2 · 2016: 1 · 2015: 2 · 2014: 2 · 2013: 3 · 2012: 7
FWCI
1.11
Type
journal article
Language
en
Open access
Locations
  • Journal of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Vitamin D Research Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinoids in leukemia and cellular processes
  • Health Sciences › Medicine › Nephrology › Parathyroid Disorders and Treatments
Keywords
all-trans retinoic acid, calciferol, vitamin D2, vitamin D3, 1,25-dihydroxyvitamin D3, vitamin D metabolism, serum calcium, serum phosphorus, retinyl acetate
MeSH terms
Retinyl Esters, Animals, Calcitriol, Calcium, Diterpenes, Ergocalciferols, Male, Phosphorus, Tretinoin, Vitamin A, Rats, Sprague-Dawley, Rats

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