| vitamin D refractory rickets |
A rare form of rickets that is not caused by vitamin D deficiency and is thus not responsive to vitamin D treatment. It is caused by a defect in renal tubular function that results in excessive loss of phosphorus.
출처:
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| vitamin D m. |
cow's milk supplemented with 400 IU of vitamin D per quart.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| vitamin D u. |
see international u. of vitamin D.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| vitamin D–dependent r., type I |
an autosomal recessive disorder of rickets with myopathy, hypocalcemia, moderate hypophosphatemia, secondary hyperparathyroidism, and subnormal serum concentrations of 1,25-dihydroxyvitamin D. The disorder can be overcome by high doses of vitamin D or physiologic doses of calcitriol; the defect is reduced or absent calcidiol 1-monooxygenase activity.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| vitamin D–dependent r., type II |
an autosomal recessive disorder similar to type I but with elevated serum concentrations of 1,25-dihydroxyvitamin D. The disorder cannot be overcome by high levels of vitamin D or its metabolites and is believed to be due to end organ refractoriness to the active metabolite, owing to defective receptor binding, absence of the receptors, or post-receptor defects. Multiple variants exist, subdivided as those with or without alopecia.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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