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Indian J Endocrinol Metab. 2012 Mar;16(2):177-82. doi: 10.4103/2230-8210.93733.

Hypophosphatemic rickets.

Author information

  • 1Department of Endocrinology, Seth G. S. Medical College, Parel, Mumbai, India.

Abstract

Hypophosphatemic rickets is a disorder of bone mineralization caused due to defects (inherited/acquired) in the renal handling of phosphorus. This group includes varied conditions, X-linked hypophosphatemic rickets being the most common inheritable form of rickets. The other common forms are autosomal dominant hypophosphatemic rickets and tumor-induced osteomalacia. Although these conditions exhibit different etiologies, increased phosphatonins form a common link among them. Fibroblast growth factor 23 (FGF23) is the most widely studied phosphatonin. Genetic studies tend to show that the phosphorus homeostasis depends on a complex osteo-renal axis, whose mechanisms have been poorly understood so far. Newer disorders are being added as the mechanisms in this axis get discovered. This review focuses on the clinical, biochemical, genetic features and management of hypophosphatemic disorders leading to defective mineralization.

KEYWORDS:

1; 25(OH)2D3; X-linked hypophosphatemic rickets; autosomal dominant hypophosphatemic rickets; fibroblast growth factor 23; hypophosphatemia; tumor-induced osteomalacia

PMID:
22470852
[PubMed]
PMCID:
PMC3313733
Free PMC Article
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