hrp0094p2-67 | Bone, growth plate and mineral metabolism | ESPE2021

X-linked hypophosphatemic rickets caused by a large deletion in PHEX gene in a Brazilian family

Chini Larissa , Cabral Larissa , Cavalieri Marilene , Isaac Alvaro , Carneiro Zumira , Hirose Thiago , Lourenco Charles ,

Background: X linked hypophosphatemic rickets (XLHR; OMIM 307800) is an X linked dominant disorder caused by mutations in the phosphate regulating neutral endopeptidase homolog X linked (PHEX) gene, which is located at Xp22.11.Objective: To clarify the underlying mechanism of a Brazilian family with hypophosphatemic rickets whose clinical manifestations were very broad among members of different generations.<p class=...

hrp0094p2-68 | Bone, growth plate and mineral metabolism | ESPE2021

Mutational analysis and genotype-phenotype correlation of the PHEX gene in Brazilian patients with X-linked hypophosphatemic rickets

Samartino Ana , Azevedo Eduardo , Peixinho Julha , Marcatto Fernanda , Silva Isabella , Nunes Julia , Carneiro Zumira , Hirose Thiago , Lourenco Charles ,

Background: X-Linked hypophosphatemic rickets (XLH) is a disorder of phosphate homeostasis, characterized by renal phosphate wasting and hypophosphatemia, with normal to low 1,25-dihydroxy vitamin D3 serum levels. PHEX is the gene defective in XLH and different mutations and genomic rearrangements have been described in different families affected by this disease.Objectives: To detect inactivating mutations in the PHEX g...