Kidney and Metabolic Bone Diseases Vol.26 No.1(6)

Theme Physiological roles of phosphorus in nutritional science
Title Phosphorus and bone metabolism
Publish Date 2013/01
Author Mayu Haraikawa Department of Food and Nutrition, Faculty of Human Sciences and Design, Japan Women's University
Author Masae Goseki-Sone Department of Food and Nutrition, Faculty of Human Sciences and Design, Japan Women's University
[ Summary ] Alkaline phosphatase (ALP, EC 3.1.3.1) hydrolyzes a variety of monophosphate esters into inorganic acids and alcohol. Human ALPs are classified into four types : tissue-non specific liver/bone/kidney (TNSALP), intestinal, placental, and germ cell types. Bone-specific ALP is one important bone formation marker. Recent studies have revealed that bone-specific ALP is indispensable for bone mineralization because it controlls concentrations of inorganic pyrophosphates, a potent calcification inhibitor. In this review, we describe the role of "ALP in phosphate metabolism" in relation to skeletal metabolism.
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