Women's Health Women's Health Home | Balance | Diet & Weight Loss | Fitness | Food & Cooking | Parenting | Preqnancy | Sex & Relationships
Men's Health Men's Health Home | Balance | Diet & Weight Loss | Fitness | Food & Cooking | Parenting | Sex & Relationships
Children's Health Children's Health Home | Fitness | Food & Cooking | Parenting | Preqnancy | Skin & Beauty
 | Skin & Beauty Guide | News & Features | glossary | Frequently Asked Questions
Home > Skin & Beauty Center > glossary >vitamin A
vitamin A
From : Writer : PublicTime : 2008-01-02 20:45:29
  • any -beta--ionone derivative, except provitamin A carotenoids, possessing qualitatively the biologic activity of retinol; deficiency interferes with the production and resynthesis of rhodopsin, thereby causing night blindness, and produces a keratinizing metaplasia of epithelial cells that may result in xerophthalmia, keratosis, susceptibility to infections, and retarded growth;
  • the original vitamin A, now known as retinol.
  • Syn: axerophthol

    Back To Glossary

    WebMD Medical Reference from "Stedman's Medical Dictionary"



    The publisher is not responsible (as a matter of product liability,negligence or otherwise) for any injury resulting from any material containedherein. This publication contains information relating to general principles ofmedical care which should not be construed as specific instructions forindividual patients. Manufacturers¡¯ product information and package insertsshould be reviewed for current information, including contraindications,dosages and precautions.
    Stedman¡¯s Medical Dictionary 28th Edition, Copyright@ 2006_Lippincott Williams & Wilkins. All rights reserved.

     

    Pre : valine (Val, V) 
    Next : vitamin B1

    Relation

    ?????