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Vitamin A

Aka: Vitamin A, Retinol, Retinoic Acid
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  1. See also
    1. Carotenoids (Beta Carotene)
  2. Function
    1. Vision
      1. Forms Carotenoid Proteins
    2. Epithelial Cell function
      1. Forms Glycoproteins
  3. Deficiency signs
    1. Decreased Visual Acuity
      1. Night Blindness
      2. Retinal deterioration
      3. Blindness
    2. Dry bulbar Conjunctiva
    3. Bitot's Spots
      1. Small foamy white or gray Plaques under Conjunctiva
    4. Corneal Ulceration
    5. Endophthalmitis
    6. Skin Hyperkeratosis
    7. Skin dryness
  4. Sources
    1. Liver
    2. Chicken meat
    3. Egg yolk
    4. Fish oil
    5. Whole milk
    6. Butter
    7. Margarine fortified with Vitamin A

Vitamin A (C0042839)

Definition (NCI) Fat-soluble vitamin consisting of 20 carbons with a methyl-substituted cyclic ring on one end of a hydrocarbon chain with 4 double bonds and either a hydroxyl, aldehyde, or carboxylic acid group on the other end.
Definition (NCI) A nutrient that the body needs in small amounts to function and stay healthy. Vitamin A helps in vision, bone growth, reproduction, growth of epithelium (cells that line the internal and external surfaces of the body), and fighting infections. It is fat-soluble (can dissolve in fats and oils). Vitamin A is found in liver, egg yolks, and whole milk dairy products from animals and in fish oils. It can also be made in the body from a substance found in some fruits and vegetables, such as cantaloupes, carrots, spinach, and sweet potatoes. Vitamin A is being studied in the prevention and treatment of some types of cancer.
Definition (MSH) Retinol and derivatives of retinol that play an essential role in metabolic functioning of the retina, the growth of and differentiation of epithelial tissue, the growth of bone, reproduction, and the immune response. Dietary vitamin A is derived from a variety of CAROTENOIDS found in plants. It is enriched in the liver, egg yolks, and the fat component of dairy products.
Definition (PDQ) The fat soluble vitamin retinol. Vitamin A binds to and activates retinoid receptors (RARs), thereby inducing cell differentiation and apoptosis of some cancer cell types and inhibiting carcinogenesis. Vitamin A plays an essential role in many physiologic processes, including proper functioning of the retina, growth and differentiation of target tissues, proper functioning of the reproductive organs, and modulation of immune function. Check for "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=39735&idtype=1" active clinical trials or "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=39735&idtype=1&closed=1" closed clinical trials using this agent. ("http://nciterms.nci.nih.gov:80/NCIBrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&code=C938" NCI Thesaurus)
Concepts Organic Chemical (T109) , Pharmacologic Substance (T121) , Vitamin (T127)
MSH D014801
SnomedCT 329237001, 82622003, 82156005, 270000007
English Vitamin A, vitamin A, VITAMIN A PREPARATIONS, Vitamin A product, Vitamin A USP, A42 VITAMIN A PREPARATIONS, vitamin A (medication), Vitamin A product (product), VITAMIN A, [VT050] VITAMIN A, Vitamin A [Chemical/Ingredient], retinol, retinols, viatmin a, vitamin-a, vit a, a vitamin, Vitamin A preparation, Vitamin A (substance), Vitamin A preparation (product), Vitamin A preparation (substance), VIATMIN A
Swedish Vitamin A
Czech vitamin A
Spanish Vitamin A, Vitamin A product, vitamina A (producto), preparado de vitamina A (producto), preparado de vitamina A, preparado de vitamina A (sustancia), vitamina A (sustancia), vitamina A, Vitamina A
Finnish A-vitamiini
Russian VITAMIN A, RETINOL, ВИТАМИН A, РЕТИНОЛ
Japanese ビタミンA, ビタミンA1, 11-シス-レチノール, レチノール, 11-cis-レチノール
Croatian Not Translated[Vitamin A]
Polish Retinol, Akseroftol, Witamina A
French Rétinol, Vitamine A
German Vitamin A
Italian Vitamina A
Portuguese Vitamina A
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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