Hypophosphataemic rickets, also known as vitamin D resistant rickets, is a group of genetic disorders characterized by defective reabsorption of inorganic phosphorus by the renal tubules resulting in hypophosphatemia and rickets associated with mineralization defect. Fibroblast growth factor-23 (FGF23) regulates phosphate reabsorption in the kidney and therefore plays an essential role in phosphate balance in humans. There is a host of defects that ultimately lead to excess FGF23 levels and thereby cause renal phosphate wasting and hypophosphatemic rickets.
Category
Inherited metabolic disorder
Brite
Human diseases in ICD-11 classification [BR:br08403]
05 Endocrine, nutritional or metabolic diseases
Metabolic disorders
Disorders of metabolite absorption or transport
5C63 Disorders of vitamin or non-protein cofactor absorption or transport
H00214 Hypophosphatemic rickets
Pathway-based classification of diseases [BR:br08402]
Endocrine system
nt06325 Hormone/cytokine signaling
H00214 Hypophosphatemic rickets