All About Vitamins: The Effects of Vitamin A on Skin tumors

Kyle J. Norton(Scholar, Master of Nutrients), all right reserved.
Health article writer and researcher; Over 10.000 articles and research papers have been written and published on line, including world wide health, ezine articles, article base, healthblogs, selfgrowth, best before it's news, the karate GB daily, etc.,.
Named TOP 50 MEDICAL ESSAYS FOR ARTISTS & AUTHORS TO READ by Disilgold.com Named 50 of the best health Tweeters Canada - Huffington Post
Nominated for shorty award over last 4 years
Some articles have been used as references in medical research, such as international journal Pharma and Bio science, ISSN 0975-6299.
Vitamins are organic compounds and vital nutrients needed by your body to grow and develop in a profound way.
Vitamin A
Vitamin A, a bi-polar molecule formed by bonds between carbon and hydrogen, is a fat soluble vitamin which can not be stored in the liver but it can be converted from beta-carotene, a powerful antioxidant. The vitamin is best known fir its strong effects in improving vision and enhancing bone growth.

 13-cis-retinoic acid and retinyl palmitate , the 2 retinoids have been shown to exert a good preventive effect in chemically induced papillomas and carcinomas of the skin in female Swiss mice study over a period of 23 weeks(1) .Dietary retinyl palmitate yielded a dose-dependent inhibition of the number and weight of tumors promoted by 12-O-tetradecanoylphorbol-13-acetate, whereas dietary 13-cis-retinoic acid resulted in a decrease in weight but not in number of tumors promoted by 12-O-tetradecanoylphorbol-13-acetate(2).

Furthermore, given with water, DFMO at 0.25% concentration inhibited the number of papillomas by 50%. Inhibition of skin tumor promotion by combined treatments with dietary 13-cis-RA (100 mg/kg) and DFMO (0.25%)(3).

All Forms of Arthritis are Curable
You Can Eliminate Osteoarthritis
By addressing the Underlying Causes through Clinical Trials and Studies

Ovarian Cysts And PCOS Elimination
Holistic System In Existence That Will Show You How To
Permanently Eliminate All Types of Ovarian Cysts Within 2 Months

Super foods Libr ary, Eat Yourself Healthy With The Best of the Best Nature Has to Offer

Sources
1. Prevention of 3-methylcholanthrene-induced skin tumors in mice by simultaneous application of 13-cis-retinoic acid and retinyl palmitate (vitamin A palmitate). by Abdel-Galil AM, Wrba H, El-Mofty MM.
(2) Effects of dietary retinyl palmitate or 13-cis-retinoic acid on the promotion of tumors in mouse skin by Gensler HL, Watson RR, Moriguchi S, Bowden GT.
(3). Modulation of mouse skin tumor promotion by dietary 13-cis-retinoic acid and alpha-difluoromethylornithine by Verma AK, Duvick L, Ali M.