From Vitamin A to Retinoids: Chemical and Pharmacological Aspects
Vitamin A is necessary for the development and maintenance of human life. It cannot be synthesized by the body and must therefore be taken in with the food. Either vitamin A alcohol (retinol) and its esters or β-carotene, a provitamin which is split in the intestine to vitamin A, serve as sources. The most important metabolic products are vitamin A esters, which are stored in the liver, vitamin A aldehyde (retinal), which is necessary in its 11-cis isomer form for visual function and vitamin A acid (retinoic acid).
KeywordsActinic Keratose Lichen Ruber Planus Ethyl Amide Skin Papilloma Mouse Papilloma
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