The Role of Abnormal Vitamin D Metabolism in X-Linked Hypophosphatemic Rickets and Osteomalacia

  • Marc K. Drezner
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 178)


The contemporary theory for the pathogenesis of X-linked hypophosphatemic rickets/osteomalacia (XLH) has as its central tenet that a primary defect in transepithelial transport of phosphate in the kidney accounts for all of the biochemical and skeletal abnormalities characteristic of the disease. Consistent with this view phosphorus depleted animals develop abnormalities in bone morphology similar to those observed in XLH and treatment of affected subjects with orthophosphate promotes healing of the rickets and linear growth in childhood. Moreover, apparent localization of the proposed defect in renal phosphate wasting to the parathyroid hormone sensitive locus of the proximal renal tubule1,2 lends further support to the primacy of a renal phosphate leak in the pathogenesis of XLH.


Phosphate Transport Hypophosphatemic Rickets Affected Subject Renal Phosphate Phosphate Depletion 


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Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • Marc K. Drezner
    • 1
  1. 1.Duke University Medical CenterDurhamUSA

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