Vitamin A
Last revised by Daniel J Bell ◉ on 10 Jul 2021
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Bell D, Hacking C, et al. Vitamin A. Reference article, Radiopaedia.org (Accessed on 04 Oct 2023) https://doi.org/10.53347/rID-2275
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rID:
2275
Article created:
Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosuresLast revised:
10 Jul 2021, Daniel J Bell ◉
Disclosures:
At the time the article was last revised Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosuresRevisions:
28 times, by 7 contributors - see full revision history and disclosures
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Synonyms:
- Vitamin A related abnormality
- Vitamin A associated abnormalities
- Vitamin A
- Retinoid
- Retinoids
Vitamin A are a group of fat-soluble vitamers (the retinoids) required for many physiological functions, mainly vision, reproduction and epithelial maintenance. In the retina, a specific retinoid, 11-cis-retinal, is formed by photoisomerisation within the rods and cones. The retinoids are hematinics.
Related pathology
Pathological manifestations can occur with both excess and deficiency:
References
- 1. Miller JH, Hayon II. Bone scintigraphy in hypervitaminosis A. AJR Am J Roentgenol. 1985;144 (4): 767-8. AJR Am J Roentgenol (citation) - Pubmed citation
- 2. Pennes DR, Ellis CN, Madison KC et-al. Early skeletal hyperostoses secondary to 13-cis-retinoic acid. AJR Am J Roentgenol. 1984;142 (5): 979-83. AJR Am J Roentgenol (abstract) - Pubmed citation
- 3. Pamela C. Champe, Richard A. Harvey (Ph. D.), Denise R. Ferrier. Biochemistry. ISBN: 0781769604
Related articles: Biochemistry
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chemical elements
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non-essential elements
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