hrp0092p1-257 | Pituitary, Neuroendocrinology and Puberty (1) | ESPE2019

Fetal and Post-Natal Growth are Impaired in Children with Deletions of the GH1 Gene: Description of a Cohort of 14 Patients

Darvish Elsa , Legendre Marie , Netchine Irene , Amselem Serge , Brioude Frederic

Data on the birth parameters of patients with growth hormone deficiency are contradictory; recent studies suggest that congenital growth hormone deficiency is associated with impaired fetal growth. The main objective of this study was to describe the birth parameters of children with GH-1 gene deletion.This study included 13 patients (of 10 families) for whom a homozygous (or compound heterozygous) deletion of the entire GH1 gene has been identi...

hrp0092p3-200 | Pituitary, Neuroendocrinology and Puberty | ESPE2019

Extreme Short Stature and Neurological Impairment in a 17-Year-Old Male with Untreated Combined Pituitary Hormone Deficiency Due to POU1F1 Mutation

Majdoub Hussein , Amselem Serge , Bercovich Dani , Rath Shoshana , Tenenbaum-Rakover Yardena

Introduction: POU1F1 is an essential transcription factor for the differentiation, proliferation and survival of somatotrophs, lactotrophs, and thyrotrophs. Mutations in the POU1F1 gene are characterized by growth hormone (GH), thyrotropin and prolactin deficiencies, commonly presenting with growth retardation and central hypothyroidism. Since the first report in 1992, about 26 mutations have been identified in POU1F1.<...

hrp0084p3-924 | GH &amp; IGF | ESPE2015

Severe Isolated Growth Hormone Deficiency and Myopathy in Two Brothers With RNPC3 Mutation

Gucev Zoran , Polenakovic Momir , Tasic Velibor , LeBouc Yves , Amselem Serge , Klammt Jurgen , Pfaeffle Roland , Filipovska Aleksandra

Background: We present two brothers with very distinct phenotype, possibly constituting a novel clinical and genetic entity. The common phenotype included red hair, obesity, myopathy, severe IGHD and, growth without growth hormone.Case presentation: At the age of 28 months the older brother had a height of 68 cm (−9 SD), his bone age was 6 months. The younger brother had a height of 62 cm at the age of 20 months (−5 SD), bone age 10 months. T...

hrp0086rfc14.1 | Growth : Mechanisms | ESPE2016

Important Contribution of GH, GHRHR and GHSR Mutations in Isolated Growth Hormone Deficiency with a Normal Location of the Posterior Pituitary –Functional Characterization of New Variants

Cohen Enzo , Sobrier Marie-Laure , Dastot Florence , Collot Nathalie , Rose Sophie , Soleyan Aude , Vie-Luton Marie-Pierre , Duquesnoy Philippe , Copin Bruno , Amselem Serge , Legendre Marie

Background: Although growth hormone (GH) and the GH releasing hormone receptor (GHRHR) are known as etiologic factors in non-syndromic isolated growth hormone deficiency (IGHD), very few mutations have been identified in this rare condition (accounting for only 6–12.5% and 0–6.7% of IGHD cases depending on studies). The functional consequences of the identified variants have rarely been assessed.Objective and hypotheses: To assess the contribut...

hrp0084fc11.2 | Neuroendocrinology | ESPE2015

Functional Characterisation of a POU1F1 Mutation Unexpectedly Associated with Isolated Growth Hormone Deficiency (IGHD): A Novel Aetiology of IGHD

Sobrier Marie-Laure , Tsai Yu-Cheng , Perez Christelle , Leheup Bruno , Bouceba Tahar , Duquesnoy Philippe , Sizova Daria , Liebhaber Stephen , Cooke Nancy E , Amselem Serge

Background: In humans, the GHN gene transcription is under the control of a Locus Control Region (LCR) enhancer, HSI, located 14.5 kb 5′ to the hGHN promoter. POU1F1, a pituitary-specific transcription factor, plays an essential role in the specification of the somatotroph, lactotroph and thyrotroph lineages and the activation of GHN, PRL and TSH gene transcription. All POU1F1 mutations so far reported have been linke...

hrp0094p2-253 | Growth hormone and IGFs | ESPE2021

GROWPATI Study: Growth and puberty description pattern in a well-characterized cohort of patients with growth retardation due to severe primary IGF1 deficiency

Stoupa Athanasia , Flechtner Isabelle , Viaud Magali , Pinto Graziella , Samara-Boustani Dinane , Thalassinos Caroline , Netchine Irene , Brioude Frederic , Amselem Serge , Legendre Marie , Polak Michel ,

Background: Severe primary insulin-growth factor-1 (IGF1) deficiency (SPIGF1D) is a rare cause of growth delay. The diagnostic criteria include age- and sex-dependent low basal IGF1 concentration (<2.5th percentile), height SDS < -3SDS, absence of growth hormone deficiency and of any secondary causes of growth failure.Objectives: 1) Report the growth pattern and pubertal status 2) Identify the molecula...

hrp0095p2-144 | GH and IGFs | ESPE2022

Growpati Study: Clinical and genetic characterization of a cohort of patients with short stature due to severe primary IGF1 deficiency

Stoupa Athanasia , Flechtner Isabelle , Viaud Magali , Pinto Graziella , Samara-Boustani Dinane , Gonzalez-Briceno Laura , Thalassinos Caroline , Amselem Serge , Legendre Marie , Netchine Irene , Brioude Frederic , Polak Michel

Background: Severe primary insulin-growth factor-1 (IGF1) deficiency (SPIGF1D) is a rare cause of short stature. Diagnosis is based on low basal IGF1 concentration, short stature, normal or elevated growth hormone concentrations and absence of any secondary causes of growth failure. Thanks to advances in next-generation sequencing (NGS) technologies, genetic etiology of SPIGF1D is expanding.Objectives: • Identify th...

hrp0092p1-80 | GH and IGFs | ESPE2019

Clinical Characteristics, Puberty Pattern and Adult or Near-adult-height Data in a Group of Patients with Growth Failure due to Severe Primary IGF-1 Deficiency (GROWPATI Study)

Stoupa Athanasia , Lorraud Christine , Flechtner Isabelle , Viaud Magali , Pinto Graziella , Samara-Boustani Dinane , Thalassinos Caroline , Brioude Frédéric , Netchine Irène , Amselem Serge , Legendre Marie , Polak Michel

Background: Severe primary insulin-growth factor-1 (IGF-1) deficiency (SPIGF1D) is a rare cause of growth retardation. Diagnostic criteria include age- and sex-dependent low basal IGF-1 levels (<2.5th percentile), height ≤ -3SDS, absence of growth hormone deficiency and of any secondary causes of growth failure.Objectives: Description of pubertal onset and growth spurt, data on adult or near-adult-he...

hrp0089p2-p207 | GH &amp; IGFs P2 | ESPE2018

Clinical and Preliminary Molecular Description of a Cohort of Patients with Growth Retardation due to Severe Primary IGF1 Deficiency (GROWPATI Study)

Stoupa Athanasia , Viaud Magali , Flechtner Isabelle , Pinto Graziella , Samara-Boustani Dinane , Thalassinos Caroline , Briceno Laura Gabriela Gonzalez , Beltrand Jacques , Netchine Irene , Brioude Frederic , Legendre Marie , Amselem Serge , Polak Michel

Background: Severe primary insulin-growth factor-1 (IGF1) deficiency (SPIGF1D) is a rare cause of growth retardation. Diagnostic criteria include age- and sex-dependent low basal IGF1 levels (<2.5th percentile), height ≤ −3SDS, absence of growth hormone (GH) deficiency and of any secondary causes of growth failure.Objectives: Phenotypic description, follow-up and molecular studies in a cohort of patients diagnosed with growth f...

hrp0086fc3.2 | Pituitary | ESPE2016

Spectrum of LHX4 Mutations in a Cohort of 510 Patients with Hypopituitarism

Cohen Enzo , Collot Nathalie , Rose Sophie , Dastot Florence , Duquesnoy Philippe , Copin Bruno , Bertrand Anne-Marie , Brioude Frederic , Hilal Latifa , Leger Juliane , Maghnie Mohamad , Oliver-Petit Isabelle , Polak Michel , Touraine Philippe , Sobrier Marie-Laure , Amselem Serge , Legendre Marie

Background: Mutations in the gene encoding LHX4, a homeodomain-containing factor with two LIM domains, are responsible for dominant hypopituitarisms with incomplete penetrance and variable expressivity. To date, only 14 unambiguous LHX4 mutations have been reported. Among those cases, 12 had an absent or ectopic posterior pituitary (EPP) and/or an abnormal sella turcica.Objective and hypotheses: To i) assess the contribution of LHX4 in combined pituitary...