All About Vitamins: Vitamin A and Reproductive System

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.,.
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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.

In the study to investigate two groups of 100 white leghorn hens were fed rations either supplemented or deficient in vitamin A for 32 weeks, showed that the ovaries of vitamin A-deficient chickens had increased numbers of atretic follicles compared with the ovaries of vitamin A-supplemented hens (20, 24, 28, and 32 weeks), and these atretic follicles contained moderate to severe hemorrhage. Hemorrhage was located either uniformly throughout the follicle or more commonly between the detached granulosa cell layer and the theca interna. Hemorrhagic follicles were uncommon in both vitamin A-supplemented hens and low-production vitamin A-supplemented hens(1). Recent evidence describes how the enzymes which control vitamin A metabolism in the testis could be targeted to generate effective male contraceptives; however, the detailed mechanism(s) regarding how vitamin A regulates normal spermatogenesis are still unknown(2)

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Sources
(1) http://medicaladvisorjournals.blogspot.ca/2012/02/phytochemicals-in-foods-11-health_22.html
(38) http://www.ncbi.nlm.nih.gov/pubmed/8363493