hrp0082p1-d1-136 | Growth | ESPE2014

A Homozygous Point Mutation in the GH1 Promoter (−161T>C) Leads to Reduced GH Expression in Siblings with Isolated GH Deficiency

Madeira Joao , Martin Regina , Montenegro Luciana , Franca Marcela , Costalonga Everlayny , Correa Fernanda , Otto Aline , Arnhold Ivo , Freitas Helayne , Machado Ubiratan , Mendonca Berenice , Jorge Alexander , Carvalho Luciani

Introduction: Mutations in the GH1 promoter are a rare cause of isolated GH deficiency (IGHD). In order to find the molecular cause of short stature due to IGHD, three siblings (2 M) born to consanguineous parents without mutations in the GHRHR and GH1 coding regions were screened for mutations in the GH1 promoter and locus control region. All patients harbored two variants (c.−123T>C and −161C>T) in homozygous state in the GH1 promoter, not found in 100 co...

hrp0084p2-535 | Puberty | ESPE2015

GH Deficiency with Advanced Bone Age: GHRH Receptor Mutation Detected by Exome Sequencing Associated to Non-Classical Congenital Adrenal Hyperplasia (CAH)

Correa Fernanda de Azevedo , Franca Marcela M , Fang Qing , Ma Qianyi , Bachega Tania A , Mendonca Berenice B , LJorge Alexander , Carvalho Luciani R , Camper Sally A , Arnhold Ivo J P

Background: Isolated Growth Hormone Deficiency (IGHD) is usually associated with a delayed bone age. A genetic cause for IGHD is more frequently found in patients with familial cases and/or consanguineous parents.Objective and hypotheses: To diagnose the genetic cause of IGHD and clarify the unusual clinical presentation of advanced bone age in one patient born to consanguineous parents.Method: Sanger sequencing of GH1, <e...

hrp0084p2-523 | Puberty | ESPE2015

Copy Number Variants in Patients with Congenital Hypopituitarism Associated with Complex Phenotypes

Correa Fernanda A , Franca Marcela M , Canton Ana P M , Otto Aline P , Costalonga Everlayny F , Brito Vinicius N , Carvalho Luciani R , Costa Silvia , Arnhold Ivo J P , Jorge Alexander A L , Rosenberg Carla , Mendonca Berenice B

Background: The aetiology of congenital hypopituitarism (CH) is unknown in the majority of patients. In our cohort of 200 cases, it was possible to establish the genetic cause in only 13 patients (6.5%). Copy number variants (CNVs) have been implicated as the cause of genetic syndromes with previously unknown aetiology.Objective: To study the presence of CNVs and its relevance in patients with CH of unknown cause associated with complex phenotypes.<p...