With or without the kidney: the role of FGF23 in CKD

Abstract
The systemic balance of phosphate is maintained mainly by three organs, i.e. the intestine, kidney and bone. Several factors including parathyroid hormone (PTH) and vitamin D play a critical role in this system. Fibroblast growth factor 23 (FGF23) is a recently identified phosphatonin which also is implicated [1,2].