hrp0086fc11.1 | Thyroid | ESPE2016

Mutations in TBL1X as a Novel Cause of Familial Central Hypothyroidism

Heinen Charlotte , Losekoot Monique , Sun Yu , Watson Peter , Fairall Louise , Joustra Sjoerd , Zwaveling-Soonawala Nitash , Oostdijk Wilma , van den Akker Erica , Santen Gijs , van Rijn Rick , Dreschler Wouter , Surovtseva Olga , Biermasz Nienke , Hennekam Raoul , Wit Jan , Schwabe John , Boelen Anita , Fliers Eric , van Trotsenburg Paul

Background: Congenital central hypothyroidism (CeH) may occur isolated, or in combination with other pituitary hormone deficiencies. Although a third causative gene for CeH was recently reported (IGSF1), the aetiology of isolated CeH has remained unexplained in most cases.Objective and hypotheses: We hypothesized that in three relatives with unexplained isolated CeH a mutation in another gene might be responsible for the phenotype.<p class="...

hrp0094p2-180 | Fat, metabolism and obesity | ESPE2021

Impact of the COVID-19 pandemic and related lockdown measures on lifestyle behaviours and quality of life in children and adolescents with severe obesity

Welling MS , Abawi O , van den Eynde E , van Rossum EFC , Halberstadt J , Brandsma AE , Kleinendorst L , van den Akker ELT , van der Voorn B ,

Introduction: Lockdown measures following the COVID-19 pandemic are shown to have greatly affected lifestyle behaviours and health-related quality of life (HRQoL) of children. The impact on children with severe obesity has not yet been described. Aim of this study was to investigate the impact of COVID-19 lockdown on eating behaviours, physical activity (PA), screen time, and HRQoL of children (including adolescents) with severe obesity....

hrp0095rfc4.2 | Fat, Metabolism and Obesity | ESPE2022

Effect of Setmelanotide Treatment in Children and Adolescents With Proopiomelanocortin (POMC) Deficiency, Leptin Receptor (LEPR) Deficiency, and Bardet-Biedl Syndrome (BBS)

Argente Jesús , Kühnen Peter , M. Haqq Andrea , Wabitsch Martin , K. Chung Wendy , van den Akker Erica , Á. Martos-Moreno Gabriel , Mohamed Iqbal Anoop , Forsythe Elizabeth , Dubern Béatrice , Malhotra Sonali , Yuan Goujun , Touchot Nicolas , Dollfus Hélène , Farooqi Sadaf , Clément Karine

Background: The melanocortin-4 receptor (MC4R) pathway is a key regulator of energy balance and satiety. Variants in genes upstream of MC4R encoding leptin receptor (LEPR), proopiomelanocortin (POMC), proprotein convertase subtilisin/kexin type 1(PCSK1) and those involved in Bardet-Biedl syndrome (BBS) can impair MC4R pathway signaling. Clinically, these variants are characterized by hyperphagia (Pathologic insatiable hunger) and early-onset, severe obesity. E...

hrp0095p1-381 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2022

Gynaecomastia And Its Management In Partial Androgen Insensitivity Syndrome (PAIS)

Patjamontri Supitcha , Lucas-Herald Angela , Bryce Jillian , Cools Martine , Gianni Russo , Globa Evgenia , Zelinska Natalia , Guerra-Junior Gil , Holterhus Paul-Martin , A Hughes Ieuan , Tadokoro-Cuccaro Rieko , Nordenstrom Anna , Rita Stancampiano Marianna , Weintrob Naomi , van den Akker Erica , Hiort Olaf , Hoffman Paul , Juul Anders , Nimali Seneviratne Sumudu , Faisal Ahmed S.

Introduction: In adolescents and men with PAIS, gynaecomastia has been reported in the majority but its management remains challenging.Objectives: To assess the current management of gynaecomastia as well as clinical characteristics in male PAIS.Materials and Methods: Retrospective review in the I-DSD registry of 46, XY male PAIS who were over the age of 10 years.<p class="abst...

hrp0097fc3.1 | Fat, metabolism and obesity 1 | ESPE2023

Early childhood height and weight development in children with monogenic obesity: A European multicenter cohort study

Zorn Stefanie , de Groot Corjan , Brandt Stephanie , von Schnurbein Julia , Abawi Ozair , Bounds Rebecca , Ruck Lisa , Guijoa Blanca , A. Martos-Moreno Gabriel , Nicaise Clarisse , Courbage Sophie , Dubern Béatrice , Poitou Christine , Clément Karine , Argente Jesús , Kühnen Peter , Farooqi Sadaf , Wabitsch Martin , van den Akker Erica

Introduction: Monogenic defects in the leptin-melanocortin pathway result in hyperphagia and severe, early-onset obesity. Knowledge of the natural history of anthropometric parameters in patients with monogenic obesity is essential for diagnosis. However, reliable data on early childhood weight and height development in affected patients are lacking. This study aimed to evaluate the history of height, weight, and BMI development in early childhood in a Europea...

hrp0094p1-6 | Adrenal A | ESPE2021

International practice of therapy monitoring in congenital adrenal hyperplasia – Real World data from the I-CAH registry

Lawrence Neil , Bacila Irina , Dawson Jeremy , Bryce Jillian , Akker Erica van den , Bachega Tania Aparecida Sartori Sanchez , Baronio Federico , Birkebaek Niels Holtum , Bonfig Walter , Claahsen Hedi , Costa Eduardo Correa , Devries Liat , Elsedfy Heba , Guven Ayla , Hannema Sabine , Iotova Violeta , Kamp Hetty J van der , Leon Maria Clemente , Lichiardopol Corina Raducanu , Milenkovic Tatjana , Neumann Uta , Nordenstrom Ana , Poyrazoglu Sukran , Probst-Scheidegger Ursina , Sanctis Luisa De , Thankamony Ajay , Vieites Ana , Yavas Zehra , Ahmed Faisal , Krone Nils ,

Aim: Recommendations for the management of Congenital Adrenal Hyperplasia (CAH) outline a target 17-OH Progesterone (17OHP) of 12-36nmol/l, but do not specify target concentrations for Androstenedione (D4). We aimed to study the temporal variations of these biomarkers in patients from different geographical regions.Method: This retrospective multi-centre study, including 21 centres (14 countries), analysed serum biomarke...

hrp0094p2-216 | Fat, metabolism and obesity | ESPE2021

The effects of dextroamphetamine treatment in children with hypothalamic obesity

Samaan J , Welling MS , de Groot CJ , Abawi O , Burghard M , Kleinendorst L , van der Voorn B , van Haelst MM , Oude Ophuis B , Kamp GA , Rotteveel J , van Schouten-Meeteren AYN , van den Akker ELT , van Santen HM ,

Introduction: Children with hypothalamic dysfunction, e.g. due to a genetic or acquired cause such as suprasellar tumours, often suffer from hyperphagia and/or decreased resting energy expenditure (REE). This process induces uncontrollable weight gain, resulting in severe hypothalamic obesity (HO). No effective treatment is available yet for HO. Amphetamines are psychostimulants that are known for their appetite reducing and REE stimulating side effects. Here,...

hrp0086p2-p969 | Thyroid P2 | ESPE2016

An Unusual Presentation of Hashimoto Thyroiditis (HT) and Precocious Puberty: The Van Wyk-Grumbach Syndrome

Leka-Emiri Sofia , Karachaliou Feneli , Fotinou Aspasia , Petrou Vassilis , Michalakos Stefanos

Background: The association of primary hypothyroidism and isosexual precocious pseudopuberty in females was first described in 1960 by Van Wyk and Grumbach. The unique elements that lead to the diagnosis are FSH-dominated sexual precocity with non advanced bone age in the presence of hypothyroidism.Objective and methods: Describe an 8.5 years old girl with hypothyroidism due to HT and clinical and hormonal features of Van-Wyk and Grumbach syndrome.<p...

hrp0095fc6.3 | Sex Development and Gonads | ESPE2022

Gonadal morphology in 46,XY gonadal dysgenesis: I-DSD Registry-based study

Tadokoro-Cuccaro Rieko , Hughes Ieuan , Cools Martine , van de Vijver Koen , Bilharinho de Mendonça Berenice , Domenice Sorahia , L Batista Rafael , Thomazini Dallago Renata , Lisboa Gomes Nathalia , Costa Elaine F. , Maciel-Guerra Andréa T. , Guerra-Junior Gil , Gabriel Ribeiro de Andrade Juliana , Lucas-Herald Angela , Bryce Jillian , Hannema Sabine , Juul Anders , Globa Eugenia , MсElreavey Kenneth , Baronio Federico , Lopez Dacal Jimena , Darendeliler Feyza , Poyrazoglu Sukran , Kolesińska Zofia , Niedziela Marek , Claahsen – van der Grinten Hedi L. , van den Akke Erica L.T. , Herrmann Gloria , Atapattu Navoda , Jain Vandana , Sharma Rajni , Bettendorf Markus , Konrad Daniel , Martin Holterhus Paul , Fica Simona , Skae Mars , Russo Gianni , Rita Stancampiano Marianna , Gazdagh Gabriella , H Davies Justin , Mohamed Zainaba , Nimali Seneviratne Sumudu , Guran Tulay , GÜVEN Ayla , Wasniewska Malgorzata , Mladenov Vilhelm , Verkauskas Gilvydas , Markosyan Renata , Korbonits Marta , Faisal Ahmed S , Hiort Olaf , Wagner Isabel , Thankamony Ajay

Background/Aims: 46,XY gonadal dysgenesis (GD) is classified as complete (CGD) or partial (PGD) depending on gonadal morphology and function. In contrast to the typical female external genitalia in CGD, the phenotype of PGD is variable depending on androgen production. A diagnosis of PGD is based on clinical/biochemical features, gonadal histology and genetic findings. The aim of this study is to characterise these features, particularly histological, in a lar...