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Updates on Rickets and Osteomalacia. The role of NaPi-2c/SLC34A3 and hypophosphataemic rickets. Segawa Hiroko 1 , Shiozaki Yuji 2 , Minoshima Sakura 2 , Miyamoto Ken-ichi 3 1Department of Molecular Nutrition, Institute of Health Bioscience, University of Tokushima Graduate School, Tokushima, Japan. 2Department of Molecular Nutrition, Institute of Health Bioscience, University of Tokushima Graduate School, Tokushima, Japan. 3Department of Molecular Nutrition, Institute of Health Bioscience, University of Tokushima Graduate School, Tokushima, Japan. pp.1445-1450
Published Date 2013/9/28
DOI https://doi.org/10.20837/4201310053
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 Hereditary hypophosphatemic rickets with hypercalciuria(HHRH),an autosomal recessive disorder first identified in a large Bedouin tribe, is characterized by hypophosphatemia secondary to renal inorganic phosphate(Pi)wasting, resulting in increased serum1,25-dihydroxyvitamin D3 concentrations with associated intestinal calcium hyperabsorption, hypercalciuria, rickets, and osteomalacia. Recent studies identified several mutations in the NaPi-2c/NPT2c transporter gene(SLC34A3)as the cause of HHRH. The fact that HHRH is caused by NaPi-2c loss-of-function mutations is compatible with the HHRH phenotype and the prevailing view of renal Pi regulation. The NaPi-2c mutants in HHRH show defective processing and stability.



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電子版ISSN 印刷版ISSN 0917-5857 医薬ジャーナル社

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