hrp0086p1-p125 | Bone & Mineral Metabolism P1 | ESPE2016

Spectrum of the Genetic Defects in Hypophosphatemic Rickets in A Group of Turkish Children

Acar Sezer , Al-Rijjal Roua A. , Demir Korcan , Kattan Walaa E. , Catli Gonul , BinEssa Huda , Abaci Ayhan , Dundar Bumin , Zou Minjing , Kavukcu Salih , Meyer Brian , Bober Ece , Shi Yufei

Background: There exists limited data regarding genetic etiology of hypophosphatemic rickets in Turkey.Objective and hypotheses: To investigate the type of genetic defect in 16 index children and their families (12 unrelated, 1 related).Method: Following clinical and laboratory assessment, PHEX analysis was made initially unless a mutation in another gene was suspected. If negative, FGF23, SLC34A3, SL...

hrp0084p2-239 | Bone | ESPE2015

Novel CYP27B1 Gene Mutations in Children with Vitamin D-Dependent Rickets Type 1A

Demir Korcan , Kattan Walaa E , Zou Minjing , Durmaz Erdem , BinEssa Huda , Nalbantoglu Ozlem , Al-Rijjal Roua A , Meyer Brian , Ozkan Behzat , Shi Yufei

Background: The CYP27B1 gene encodes 25-hydroxyvitamin D-1α-hydroxylase. Mutations of this gene cause a rare autosomal recessive disorder, vitamin D-dependent rickets type 1A.Objective and hypotheses: To investigate CYP27B1 mutations in children when rickets was associated with normal or high vitamin D levels and low or inappropriately normal calcitriol levels.Method: All coding exons and intron-exon boundari...