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57th Annual ESPE

Athens, Greece
27 Sep 2018 - 29 Sep 2018

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ESPE 2018 57th European Society for Paediatric Endocrinology Annual Meeting 27-29 September 2018 Athens, Greece

hrp0089fc5.1 | Thyroid | ESPE2018

Beta1-Tubulin Gene (TUBB1) Mutations Cause Thyroid Dysgenesis Associated to Abnormal Platelet Morphology and Hyper-Aggregation

Carre Aurore , Stoupa Athanasia , Adam Frederic , Kariyawasam Dulanjalee , Strassel Catherine , Gawade Sanjay , Szinnai Gabor , Kauskot Alexandre , Lasne Dominique , Janke Carsten , Natarajan Kathiresan , Schmitt Alain , Bole-Feysot Christine , Nitschke Patrick , Leger Juliane , Jabot-Hanin Fabienne , Tores Frederic , Michel Anita , Munnich Arnold , Besmond Claude , Scharfmann Raphael , Lanza Francois , Borgel Delphine , Polak Michel , Federation Parisienne pour le Depistage et la Prevention des Handicaps de l'Enfant FPDPHE Michel

Background: Congenital hypothyroidism (CH) is the most common neonatal endocrine disorder, with an incidence of 1:3000 neonates, and one of the most frequent preventable causes of mental retardation worldwide. Most (65%) cases of primary permanent CH are due to thyroid dysgenesis (TD). However, a genetic cause is identified in less than 5% of CH due to DT.Methods: We performed WES (Whole Exome Sequencing) for siblings with childhood-onset TD and we analy...

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...

hrp0089fc5.3 | Thyroid | ESPE2018

Computational Analysis of the Ligand Binding Domain of the Thyroid Hormone Receptor for the Rational Design of an Efficient Protein-Based Biosensor for the Detection of Thyroid Hormone Disrupting Chemicals

Verma Sonia , Pandey Amit V

Background: Thyroid hormone disrupting chemicals (THDCs) which are present in the environment, food and everyday consumer products, interfere with thyroid hormone signaling, possibly by interacting with thyroid hormone receptors (THRs). This alters the thyroid hormone homeostasis and affects various functions regulated by the thyroid hormone e.g. macronutrient metabolism, cardiovascular function, and normal brain development. Therefore, there is a necessity for detection and m...

hrp0089fc5.4 | Thyroid | ESPE2018

Thyroid Hormone Analog Therapy in Patients with MCT8 deficiency: the Triac Trial

Groeneweg Stefan , de Coo Rene , van Beynum Ingrid , van der Knoop Marieke , Aarsen Femke , de Rijke Yolanda , Peeters Robin , Visser Theo , Visser Edward

Introduction: Mutations in the thyroid hormone (TH) transporter MCT8 result in MCT8 deficiency, which is characterized by severe intellectual and motor disability and high serum T3 concentrations inducing thyrotoxicity in peripheral tissues. At present, no effective treatment is available, although preclinical studies suggest that the T3 analog Triac is a promising candidate to i) normalize serum T3 levels and thus alleviate the thyrotoxicosis and ii) restore TH signaling in t...

hrp0089fc5.5 | Thyroid | ESPE2018

Guidelines for the Management of Paediatric Differentiated Thyroid Carcinoma; a UK Endeavour

Howard Sasha , Newbold Kate , Freeston Sarah , Natu Sonali , Pomplun Sabine , Izatt Louise , Gaze Mark , Barney Harrison , Spoudeas Helen , Wilne Sophie

Objectives: Differentiated thyroid cancer (DTC) has shown increasing incidence in children and young people <19 years (CYP), and CYP present with more extensive disease than in adults and are at risk of long-term morbidity. A paucity of randomised controlled trials in the field has led to a lack of consensus on how these children should best be managed. These ChildrenÂ’s Cancer and Leukaemia Group and British Society for Paediatric Endocrinology and Diabetes commission...

hrp0089fc5.6 | Thyroid | ESPE2018

Alterations in DNA Methylation Status of Gene Promoters in Children and Adolescents with Autoimmune Thyroid Disease

Kyrgios Ioannis , Fragkou Aikaterini , Efraimidou Smaragda , Tzimagiorgis Georgios , Emporiadou-Petikopoulou Maria , Galli-Tsinopoulou Assimina

Background: Hashimoto Thyroiditis (HT) and Graves Disease (GD) are conditions known to be caused by abnormal immune response against self-tissues. The biological processes at molecular lever are still poorly understood. A few epigenetic studies have been published so far.Objective: To investigate whether there are differences in DNA methylation within the HLADRB1, CD40L, FOXP3, CTLA4, FCRL3, IL2RA and PTPN22 promoters between young patients with autoimmu...