hrp0089p1-p128 | Fat, Metabolism and Obesity P1 | ESPE2018

Rate of Accumulation of Abdominal Fat is Associated with Fasting Glucose Levels in Early Childhood

Anand Sadananthan Suresh , Thway Tint Mya , Michael Navin , Wei Pang Wei , Ling Loy See , Soh Shu-E , Shek Lynette , Yap Fabian , Hian Tan Kok , Kramer Michael , Eriksson Johan , Godfrey Keith , Gluckman Peter , Seng Chong Yap , Karnani Neerja , Seng Lee Yung , Fortier Marielle , Sendhil Velan S

Objectives: Abdominal fat has been strongly linked to increased cardiometabolic risk and impaired glucose regulation in adults. Owing to the lack of detailed body composition phenotyping in most previous child cohort studies, the temporal links between abdominal fat accumulation and impaired glucose regulation have not been well established. In this study, we evaluated the associations of abdominal fat assessed by MRI at early infancy (≤21 days after birth) and at 4.5 ye...

hrp0094p2-411 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2021

Rationale for a reduced dexamethasone dose in prenatal congenital adrenal hyperplasia therapy based on pharmacokinetic modelling

Neumann Uta , Stachanow Viktoria , Blankenstein Oliver , Fuhr Uwe , Huisinga Wilhelm , Reisch Nicole , Kloft Charlotte

Context: Prenatal dexamethasone (Dex) therapy is used in female foetuses with congenital adrenal hyperplasia (CAH) to suppress adrenal androgen excess and prevent virilisation of the external genitalia. The prenatal dexamethasone dose of 20 µg/kg/d has been used for decades in prenatal CAH. Despite the risks for the treated mother and potentially for the unborn child, no clinical study or evaluation had been conducted in order to determine a Dex dose with a scientific rat...

hrp0098rfc8.1 | Adrenals and HPA Axis 2 | ESPE2024

Predict – A randomized investigation of a reduced prenatal dexamethasone dose to reduce virilization in female fetuses with congenital adrenal hyperplasia

Neumann Uta , Stachanow Viktoria , Kloft Charlotte , Blankenstein Oliver , Lajic Svetlana , Reisch Nicole

Introduction: Prenatal dexamethasone (Dex) therapy in female fetuses with congenital adrenal hyperplasia (CAH) has been conducted for 40 years but the dose given to the pregnant woman has never been fully evaluated in a randomized clinical trial. Prenatal Dex therapy is associated with potential side effects for both mother and child.Methods: In a study funded by the German Federal Ministry of Education and Research (BMB...

hrp0095rfc5.5 | Adrenals and HPA Axis | ESPE2022

Mosaic PRKACA duplication causing a novel and distinct phenotype of early-onset Cushing syndrome and acral cutaneous mucinosis

M McGlacken-Byrne Sinead , Abdelmaksoud Ashraf , Haini Mohammad , Palm Liina , Ashworth Michael , Li Juan , Wang Wei , Wang Xiumin , Wang Jian , Callaghan Bridget , A Kinsler Veronica , Faravelli Francesca , T Dattani Mehul

Introduction: Genetic alterations within the cAMP/PKA pathway, including the genes GNAS, PDE11A, PDE8, PRKAR1A/B, and PRKACA, result in a spectrum of adrenocortical disorders. To date, somatic PRKACA variants and germline PRKACA copy number gain have been associated with the development of cortisol-secreting adrenocortical adenomas and bilateral adrenal hyperplasia, respectively. While variants within the PRKAR1A ge...

hrp0095p1-136 | Multisystem Endocrine Disorders | ESPE2022

Time Taken to Reach a Diagnosis In Children With XY DSD In Expert Endocrine Centres In Europe

Ali Salma , Bryce Jillian , Hiort Olaf , Verrijn Stuart Annemarie , Cools Martine , Luczay Andrea , De Sanctis Luisa , Baronio Federico , Navardauskaite Ruta , Claahsen-van der Grinten Hedi , Yeste Diego , Gan Hoong-Wei , Persani Luca , Capalbo Donatello , Nordenstrom Anna , Faisal Ahmed S.

Background: Reaching a definitive diagnosis in individuals with XY DSD is challenging and the time taken to reach a diagnosis is an important clinical benchmark that has not been sufficiently explored in this group of conditions.Objective: To evaluate the diagnostic process with a focus on the time to diagnosis in children with XY DSD reported via the e-reporting platform (e-REC) of the European Registries for Rare Endoc...

hrp0092fc5.5 | Thyroid | ESPE2019

Identification of TRPC4AP as a Novel Candidate Gene Causing Thyroid Dysgenesis

Eberle Birgit , Choukair Daniela , Vick Philipp , Hermanns Pia , Weiß Birgit , Paramasivam Nagarajan , Schlesner Matthias , Wiemann Stefan , Roeth Ralph , Klutmann Carina , Hoffmann Georg F. , Pohlenz Joachim , Rappold Gudrun A. , Bettendorf Markus

Background: Congenital hypothyroidism (CH) is the most common endocrine disorder in neonates and is predominantly caused by developmental abnormalities known as thyroid dysgenesis (TD). Several transcription factors have been described in its aetiology, but defects in the known genes only account for a small proportion of cases.Methods: To identify novel genes involved in TD, we performed exome sequencing in 7 unrelated ...

hrp0092fc15.2 | Late Breaking Abstracts | ESPE2019

HDAC4 Mutations Cause Diabetes and Induce β-Cell FoxO1 Nuclear Exclusion

Gong Maolian , Yu Yong , Vuralli Dogus , Fröhler Sebastian , Kühnen Peter , Du Bois Philipp , Zhang Jingjing , Hussain Khalid , Fielitz Jens , Jia Shiqi , Chen Wei , Raile Klemens

Background: Studying patients with rare Mendelian diabetes has highlighted molecular mechanisms regulating β-cell pathophysiology. Previous, experimental studies have shown that Class IIa histone deacetylases (HDAC4, 5, 7, and 9) modulate mammalian pancreatic endocrine cell differentiation, function and finally glucose homeostasis.Methods: We performed exome sequencing in one adolescent boy with non-autoimmune di...

hrp0086ha1 | KCNQ1 Mutations Cause Both Neonatal Diabetes and Hyperinsulinemic Hypoglycaemia of Infancy | ESPE2016

KCNQ1 Mutations Cause Both Neonatal Diabetes and Hyperinsulinemic Hypoglycaemia of Infancy

Liang Lei , Jia Shiqi , Frohler Sebastian , Kuhnen Peter , Blankenstein Oliver , Krill Winfried , Khodaverdi Semik , Cao Aidi , Hummel Oliver , Elbarbary Nancy , Hussain Khalid , Voelkl Jacob , Chen Wei , Gong Maolian , Raile Klemens

Background: Mutations in genes involved in insulin secretion or regulation of β cell identity cause both persistent neonatal diabetes (PND) and hyperinsulinemic hypoglycemia of infancy (HHI) pinpointing shared pathogenic mechanisms. KCNQ1 encodes a potassium channel protein, Kv7.1, which is a voltage-gated potassium channel expressed in cardiac tissue, pancreas, inner ear neurons, and other tissues. Variants in or nearby to KCNQ1 were linked t...

hrp0094p1-72 | Fetal Endocrinology and Multisystem Disorders A | ESPE2021

Clinical characteristics of children with Congenital Hyperinsulinism: Results from the European Registries for Rare Endocrine Conditions (EuRRECa) Project

Plachy Lukas , Bryce Jillian , Mohnike Klaus , Gan Hoong-Wei , Shaikh Guftar , Rozenkova Klara , Mozzillo Enza , Maltoni Giulio , Navardauskaite Ruta , Casteels Kristina , Stuart Annemarie Verrijn , Dastamani Antonia , Empting Susann , Verkauskiene Rasa , Ahmed S. Faisal , Sumnik Zdenek ,

Introduction: Congenital hyperinsulinism (CHI) is a group of rare endocrine disorders characterized by repeated episodes of hypoglycemia caused by an excessive insulin secretion from the pancreas beta cells. The etiopathogenesis, phenotype, treatment, and prognosis of individual CHI cases are variable and not completely described.Aims: To gather and describe clinical and genetic data about CHI cases diagnosed within the large EuRRECa net...

hrp0094p1-114 | Fat, Metabolism and Obesity B | ESPE2021

EuRRECa Registry Genetic Obesity Survey Results

Shaikh Guftar , Akker Erica van den , Bryce Jillian , Ali Salma , Amin Rakesh , Cools Martine , Dattani Mehul , Grugni Graziano , Khairi Ranna El , Persani Luca , Peters Catherine , Rossum Elisabeth van , Waele Kathleen De , Gan Hoong-Wei , Ahmed Faisal ,

Introduction: The diagnosis and treatment of patients with rare diseases is often difficult as most clinicians do not encounter them. Therefore, centralization and collaboration between centers of expertise is necessary. European Reference Networks (ERN’s) such as RareEndoERN provide a platform for this, with one of its main thematic groups having a specific focus on rare growth and obesity disorders. Genetic obesity encompasses a heterogeneous group of c...