hrp0082fc4.4 | Growth | ESPE2014

Short Stature, Accelerated Bone Maturation, and Early Growth Cessation due to Heterozygous Aggrecan Mutations

Nilsson Ola , Guo Michael , Dunbar Nancy , Popovic Jadranka , Flynn Daniel , Jacobsen Christina , Lui Julian , Hirschhorn Joel , Baron Jeffrey , Dauber Andrew

Background: Most children with idiopathic short stature (ISS) have a delayed bone age (BA). ISS with advanced BA is far less common. We studied three families with autosomal dominant short stature, unexplained BA acceleration, and premature growth cessation.Objective and hypotheses: To identify the genetic cause of this condition and describe its clinical spectrum.Method: Whole exome sequencing was performed in selected individuals...

hrp0086fc14.1 | Growth : Mechanisms | ESPE2016

Clinical Characterization of Children with Autosomal Dominant Short Stature due to Aggrecan Mutations Broadens the Phenotypic Spectrum

Gkourogianni Alexandra , Andrew Melissa , Crocker Melissa , Dunbar Nancy , Jorge Alexander , Lafranchi Stephen , Lalani Seema , Lebl Jan , Lin Lynda , Los Evan , Newbern Dorothee , Nowak Catherine , Olson Micah , Popovic Jadranka , Pruhova Stepanka , Quintos Jose Bernardo , Sentchordi Lucia , Baron Jeffrey , Nilsson Ola , Dauber Andrew

Background: Heterozygous mutations in the Aggrecan gene (ACAN) cause autosomal dominant short stature with bone age (BA) acceleration, and premature growth cessation.Objective and methods: To characterize the phenotypic spectrum, associated conditions and describe response to growth-promoting therapies, detailed clinical evaluation of 73 mutation positive individuals from 16 families different families with heterozygous ACAN mutations was perfor...