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Updates on Rickets and Osteomalacia. Biological function of osteocyte and FGF23/klotho system. Amizuka Norio 1 , Hasegawa Tomoka 2 , Sasaki Muneteru 2 , Yamamoto Tomomaya 2 , Yamamoto Tsuneyuki 3 1Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Japan. 2Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Japan. 3Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Hokkaido University, Japan. pp.1453-1461
Published Date 2013/9/28
DOI https://doi.org/10.20837/4201310061
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 Osteocytes are known to synthesize FGF23 which would bind to FGFR1c/klotho complex in proximal renal tubules in kidney, thereby, reducing serum concentration of Pi and the activity of 1α-hydroxylase. Meanwhile, recent studies suggest the possibility that osteocytes might induce osteolysis of lacuna walls. Compact, cortical bone develops well-organized distribution of osteocyte-lacunar canalicular system(OLCS),which appears to be efficient for osteocytic function. There seems some relation between the geometrical regularity of OLCS and osteocytic regulation of systemic and local mineral balance.



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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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