Preliminary trials with 24,25-dihydroxyvitamin D3 in dialysis osteomalacia |
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Authors: | A B Hodsman E G Wong D J Sherrard A S Brickman D B Lee F R Singer A W Norman J W Coburn |
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Affiliation: | 1. Los Angeles, California, USA;2. Dr. Lee was a Research Associate, Veterans Administration USA |
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Abstract: | Fifteen patients with dialysis osteomalacia were treated with 24,25-dihydroxyvitamin D3 in dosages up to 10 micrograms per day for two to 24 months. All had previously had no improvement during treatment with calcitriol but had been remarkably susceptible to hypercalcemia. When 24,25-dihydroxyvitamin D3 was given with either calcitriol or dihydrotachysterol, serum calcium levels were significantly lower than during treatment with calcitriol or dihydrotachysterol alone. Eight of nine patients who received combined therapy with 24,25-dihydroxyvitamin D3 and calcitriol for longer than two months had clinical improvement; six patients underwent repeated bone biopsy and showed evidence of improved bone mineralization. Patients who received 24,25-dihydroxyvitamin D3 alone did not improve clinically. Since 24,25-dihydroxyvitamin D3 appears to improve calcium homeostasis and bone mineralization in some patients with severe dialysis osteomalacia when administered with 1-hydroxylated vitamin D metabolites, further controlled studies are warranted. |
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Keywords: | Requests for reprints should be addressed to Dr. Jack W. Coburn Nephrology Section (691/11 1L) Veterans Administration Wadsworth Medical Center Wilshire and Sawtelle Boulevards Los Angeles California 90073. |
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