Review
doi: 10.1097/00041552-199401000-00008.
The mechanisms of regulation of vitamin D metabolism in the kidney
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- PMID: 7850413
- DOI: 10.1097/00041552-199401000-00008
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Review
The mechanisms of regulation of vitamin D metabolism in the kidney
Curr Opin Nephrol Hypertens.
1994 Jan.
Abstract
Recently, the 24-hydroxylase enzyme of 25-hydroxyvitamin D3 was purified from rat and chick kidney, and its complementary DNA was cloned. The length of the rat 24-hydroxylase gene is about 15 kbp with 12 exons. Cloning of the 24-hydroxylase gene made it possible to examine the mechanism of regulation of vitamin D metabolism at the gene level. Expression of renal 24-hydroxylase mRNA is regulated by a balance of plasma parathyroid hormone and 1 alpha,25-dihydroxyvitamin D3 levels, whereas intestinal 24-hydroxylase mRNA is regulated mainly by plasma 1 alpha,25-dihydroxyvitamin D3. This article reviews recent progress in understanding the molecular aspects of vitamin D metabolism.
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