2005 年 14 巻 Supplement23 号 p. S23_17-S23_20
The overview on X-linked hypophosphatemia (XLH) was presented by summarizing the current findings on the relationships between PHEX and FGF23 as well as on the homeostasis of extracellular phosphorus and vitamin D metabolism. There are urgent needs in the identification of phosphatonin. Concerning FGF23, its expression mechanisms, physiological roles, as well as the intracellular signaling pathway should be clarified.