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Bonekey Rep. 2014 Mar 5;3:510. doi: 10.1038/bonekey.2014.5. eCollection 2014.

Mutations in the vitamin D receptor and hereditary vitamin D-resistant rickets.

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Department of Medicine, Stanford University , Stanford, CA, USA.
Department of Pediatrics, Stanford University , Stanford, CA, USA.


Heterogeneous loss of function mutations in the vitamin D receptor (VDR) interfere with vitamin D signaling and cause hereditary vitamin D-resistant rickets (HVDRR). HVDRR is characterized by hypocalcemia, secondary hyperparathyroidism and severe early-onset rickets in infancy and is often associated with consanguinity. Affected children may also exhibit alopecia of the scalp and total body. The children usually fail to respond to treatment with calcitriol; in fact, their endogenous levels are often very elevated. Successful treatment requires reversal of hypocalcemia and secondary hyperparathyroidism and is usually accomplished by administration of high doses of calcium given either intravenously or sometimes orally to bypass the intestinal defect in VDR signaling.

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