VITAMIN D METABOLISM

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Abstract
During the past decade, an explosion of information has become available on the metabolism and function of vitamin D which is of great importance to clinicians in the treatment of metabolic bone disease. We have learned that vitamin D is the precursor of at least one hormone and that this hormone carries out functions in calcium and phosphorus metabolism bringing about mineralization of bone on one hand, and the prevention of hypocalcaemic tetany on the other. It may also function in the prevention of such degenerative bone diseases as osteoporosis. An important analogue of this hormone, 1alpha-hydroxyvitamin D3 has been prepared and is used successfully in the treatment of a variety of clinical conditions. This presentation will summarize these findings and their possible implications in these metabolic bone diseases.
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