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...

hrp0092fc5.4 | Thyroid | ESPE2019

Thyroid Dysgenesis: Exome-Wide Analysis Identifies Rare Variants in Genes Involved in Thyroid Development and Cancer

Larrivée-Vanier Stéphanie , Jean-Louis Martineau , Magne Fabien , Bui Helen , Samuels Mark E. , Polak Michel , Van Vliet Guy , Deladoëy Johnny

Context: Congenital hypothyroidism from thyroid dysgenesis (CHTD) is mainly a sporadic and non-syndromic condition occurring in 1:4,000 live births. In contrast to rare cases of syndromic monogenic CHTD, non-syndromic (NS) CHTD shows low familial recurrence risk (~2%) and low concordance rate between MZ twins, suggesting a two-hit scenario combining post-zygotic events with either a de novo monogenic mutation or incomplete penetrance of polyg...

hrp0092p2-176 | Growth and Syndromes (to include Turner Syndrome) | ESPE2019

Efficacy and Safety of Growth Hormone (GH) in the Treatment of Children with Hypochondroplasia (HCH): Comparison with a Historical Cohort of Untreated Children with HCH

Pinto Graziella , Samara-Boustani Dinane , Viaud Magali , Cormier-Daire Valérie , Lopez Yeriley , Fresneau Laurence , Piketty Marie , Claude Pineau Jean , Polak Michel

Hypochondroplasia (HCH) is a skeletal dysplasia, mainly caused by mutations in the fibroblast growth factor receptor3 (FGFR3) gene and characterized by disproportionate short stature.Our main was to determine the efficacy of growth hormone therapy in children with HCH, compared with a historical cohort of 40 untreated children with HCH.Diagnosis of subjects was confirmed by the Bone Dysplasia Center2. Height standard dev...

hrp0089fc5.2 | Thyroid | ESPE2018

Enrichment of Inherited Rare Variants in Non-Syndromic Congenital Hypothyroidism from Thyroid Dysgenesis Identified By Exome Sequencing: the Contribution of IKBKE to Vasculogenesis and Thyroid Development

Larrivee-Vanier Stephanie , Magne Fabien , Jean-Louis Martineau , Carre Aurore , Bui Helen , Samuels Mark E. , Polak Michel , Van Vliet Guy , Deladoey Johnny

Congenital hypothyroidism from thyroid dysgenesis (CHTD) is mainly a sporadic and non-syndromic condition occurring in 1:4,500 live births. In contrast to rare cases of syndromic monogenic CHTD, non-syndromic (NS) CHTD shows low familial recurrence risk (~2%) and low concordance rate between MZ twins, suggesting a two-hit scenario combining post-zygotic events with either a de novo monogenic mutation or incomplete penetrance of polygenic inherited variants,. As this l...

hrp0089p2-p293 | Multisystem Endocrine Disorders P2 | ESPE2018

What is the Impact of a Structured Healthcare Pathway Dedicated to Patients in Transition on Their Long-term Follow-up?

Menesguen Florence , Tejedor Isabelle , Malivoir Sabine , Faucher Pauline , Halbron Marine , Popelier Marc , Leger Juliane , Netchine Irene , Polak Michel , Bruckert Eric , Poitou Christine , Touraine Philippe

Management of patients presenting a chronic endocrine or metabolic disease during transition period is a challenge for multiple reasons. The department of Adult Endocrinology and Reproductive Medicine in Pitie Salpêtrière Hospital, Paris has been involved in the management of such patients for many years. However, in our own experience, 81% of patients are still followed-up after 1 year, 71% after 3 years and only 49% after 5 years. Based on such experience, we decid...

hrp0086fc5.4 | Management of Disorders of Insulin Secretion | ESPE2016

Persistent Beneficial Metabolic Effect after Five Years in a Cohort of 28 Subjects with Neonatal Diabetes owing to Potassium Channel Mutation and Transferred from Insulin to Sulfonylureas

Hoarau Marie , Fauret Anne-Laure , Busiah Kanetee , Godot Cecile , Colas Sandra , Treluyer Jean-Marc , Scharfmann Raphael , Cave Helene , Polak Michel , Beltrand Jacques

Background: Sulfonylureas (SU) have proven to be effective in patients with monogenic diabetes owing to potassium channel mutation. They allow the discontinuation of insulin and a good metabolic control. Long-term data arguing for a persistent beneficial effect of SU are missing.Objective and hypotheses: SU provide a good metabolic control maintained over time in patients with neonatal diabetes.Method: From a French cohort of 34 pa...

hrp0086fc11.3 | Thyroid | ESPE2016

Genetic Heterogeneity Revealed by WES in a Cohort of Patients with Brain-Lung-Thyroid Syndrome

Stoupa Athanasia , Kariyawasam Dulanjalee , Gueriouz Manelle , Malan Valerie , Fanen Pascale , Nitschke Patrick , Zarhrate Mohammed , Bole-Feysot Christine , Besmond Claude , Polak Michel , Carre Aurore

Background: Brain-Lung-Thyroid (BLT) syndrome (OMIM# 610978) is characterized by congenital hypothyroidism (CH), infant respiratory distress syndrome (IRDS), and benign hereditary chorea and is caused by thyroid transcription factor 1 (NKX2-1/TTF1) haploinsufficiency. The phenotype can be partial or complete and there is a large phenotypic variability.Objectives and hypotheses: Identify new genes in a selected group of patients presenting thyroi...

hrp0086rfc1.8 | Adrenals | ESPE2016

Adrenal Dysfunction in HIV-Exposed Uninfected Infants Receiving Ritonavir-Boosted Lopinavir, an HIV Protease Inhibitor, for the Prevention of Breastfeeding HIV Transmission. An ANRS 12174 Substudy

Polak Michel , Wudy Stefan , Meda Nicolas , Hartmann Michaela , Kankasa Chipepo , Tumwine James , Laborde Kathleen , Hofmeyr Justus , Vallo Roselyne , Nagot Nicolas , Tylleskar Thorkild , Van de Perre Philippe , Blanche Stephane

Background: We recently demonstrated that both ritonavir-boosted lopinavir (LPV/r) and lamivudine (3TC, a nucleoside analogue) given to breastfed infants can reduce the risk of post natal HIV transmission (ANRS 12174 trial; Nagot, Lancet 2016). In another setting we previously showed the occurrence of adrenal dysfunction in newborn perinatally exposed to LPV/r leading to acute adrenal insufficiency in premature babies (Simon, JAMA 2011).Objective and hyp...

hrp0086rfc3.6 | Pituitary | ESPE2016

Priority Target Conditions of Growth-Monitoring in Children: Toward Consensus

Scherdel Pauline , Reynaud Rachel , Pietrement Christine , Salaun Jean-Francois , Bellaiche Marc , Arnould Michel , Chevallier Bertrant , Carel Jean-Claude , Piloquet Hugues , Jobez Emmanuel , Cheymol Jacques , Heude Barbara , Chalumeau Martin

Background: Growth monitoring of apparently healthy children aims at early detection of severe underlying conditions. Strong empirical evidence shows that current practices of growth monitoring are suboptimal. Practice standardisation with validated tools requires answering two questions: Which conditions should be targeted? How should abnormal growth be defined?Objective and hypotheses: To obtain consensus on a short list of priority target conditions o...

hrp0086rfc5.6 | Management of Disorders of Insulin Secretion | ESPE2016

Clinical Management of the Mitchell-Riley Syndrome Due to RFX6 Gene Mutations: Aggressive Support Results in Improved Outcome

Poidvin Amelie , Chandra Vikash , Fauret-Amsellem Anne-Laure , Cave Helene , Beltrand Jacques , Tubiana-Rufi Nadia , Carel Jean-Claude , Polak Michel , Scharfmann Raphael

Background: Homozygous mutations in the transcription factor RFX6 are the cause of the Mitchell-Riley syndrome associating neonatal diabetes, pancreatic hypoplasia, gallbladder agenesis, duodenal atresia, and severe chronic diarrhea. Nine cases have been reported so far and the condition has a poor prognosis with five of nine patients died before the age of 6 months.Objective and hypotheses: To report on the clinical management and outcome of tw...