hrp0097p1-400 | Adrenals and HPA Axis | ESPE2023

11-oxygenated androgens as biomarkers in congenital adrenal hyperplasia: reference intervals for children

P.H. Adriaansen Bas , oude-Alink Sandra , W. Swinkels Dorine , A.M. Schröder Mariska , N. Span Paul , C.G.J. Sweep Fred , L. Claahsen - van der Grinten Hedi , E. van Herwaarden Antonius

Background: Patients with congenital adrenal hyperplasia (CAH) might suffer from hyperandrogenism. For diagnosing and treatment monitoring, usually levels of androstenedione (A4) and testosterone (T) are measured in blood. More recently, adrenal-specific 11-oxygenated androgens such as 11- hydroxyandrostenedione (11OHA4), 11-ketoandrostenedione (11KA4), 11-hydroxytestosterone (11OHT), and 11-ketotestosterone (11KT) were introduced as promising biomarkers, but ...

hrp0092fc12.3 | Growth and Syndromes (to include Turner Syndrome) | ESPE2019

Growth Hormone Treatment in Adults with Prader-Willi Syndrome has Sustained Positive Effects on Body Composition

Damen Layla , Donze Stephany , Kuppens Renske , Bakker Nienke , de Graaff Laura , Alfen-van der Velden Janiëlle van , Stikkelbroeck Nike , Hokken-Koelega Anita

Context: In children with Prader-Willi syndrome (PWS), the benefits of growth hormone (GH) treatment are well established. Currently, when young adults with PWS have attained adult height (AH), they have to stop GH treatment. Several one year studies have shown that GH treatment is also beneficial for adults with PWS, improving body composition. However, little is known about the longer-term effects.Objective: To investi...

hrp0092fc13.2 | Adrenals and HP Axis | ESPE2019

Sexual Dimorphism in Cortisol Production and Metabolism Throughout Pubertal Development: A Longitudinal Study

van Keulen Britt , Dolan Conor , van der Voorn Bibian , Andrew Ruth , Walker Brian , Boomsma Dorret , Hulshoff-Pol Hilleke , Rotteveel Joost , Finken Martijn

Background: Sex differences in disease susceptibility might be explained by a sexual dimorphism in hypothalamic-pituitary-adrenal axis activity, which has been postulated to emerge during puberty. The aim of this study is to assess the contribution of pubertal development to sexual dimorphism in cortisol production and metabolism.Methods: Participants, born between 1995 and 1996, were enrolled from the population-based N...

hrp0092p1-377 | Growth and Syndromes (to include Turner Syndrome) (2) | ESPE2019

International Consensus: Ovarian Tissue Cryopreservation in Young Turner Syndrome Patients. Outcomes of an Ethical Delphi Study Including 55 Experts from 16 Different Countries.

Schleedoorn Myra , Mulder Bjarne , Braat Didi , Beerendonk Catharina , Peek Ron , Nelen Willianne , van Leeuwen Evert , van der Velden Janielle , Fleischer Kathrin

Summary Answer: The majority of the expert panel states that ovarian tissue cryopreservation (OTC)should be offered to young females with Turner syndrome (TS)Background: OTC is a valid option to preserve the fertility of young females at risk of iatrogenic premature ovarian insufficiency (POI). Offering OTC to females with a genetic cause of POI seems a logical next step. One of the most common genetic disorders related ...

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...

hrp0089p1-p005 | Adrenals and HPA Axis P1 | ESPE2018

Elevated Concentrations of Adrenal Steroid Precursors with Glucocorticoid Activity Might Prevent Addisonian Crisis in Untreated Patients with Classic Congenital Adrenal Hyperplasia

Engels Manon , Pijnenburg-Kleizen Karijn , Utari Agustini , Faradz Sultana , Heuvel Joop , Herwaarden Teun van , Span Paul , Sweep Fred , Grinten Hedi Claahsen-van der

Introduction: Congenital adrenal hyperplasia (CAH) is most often caused by 21-hydroxylase deficiency (21OHD: 95%) or by 11-hydroxylase deficiency (11OHD). Classic CAH results in impaired cortisol production and consequently elevated ACTH concentrations leading to chronic adrenal stimulation with strongly elevated adrenal steroid precursors before the enzymatic defect. In contrast to other forms of adrenal insufficiency, some untreated classic CAH patients seem to have less cli...

hrp0086rfc1.6 | Adrenals | ESPE2016

Pediatric Patients with Congenital Adrenal Hyperplasia have Unfavorable Changes in their Cardiovascular Risk Profile

Mooij Christiaan F. , van Herwaarden Antonius E. , Roeleveld Nel , de Korte Chris L. , Kapusta Livia , Claahsen - van der Grinten Hedi L.

Background: Patients with congenital adrenal hyperplasia (CAH) are at risk of developing an unfavorable cardiovascular risk (CVR) profile. Data on the CVR profile in pediatric CAH patients are scarce.Objective and hypotheses: To evaluate the CVR profile of pediatric CAH patients.Method: A cross-sectional study in CAH patients (8–16 years) was performed (n=27). Blood was taken to evaluate several circulating CVR marker...

hrp0084lbp-1259 | Late Breaking Posters | ESPE2015

Adrenal Steroid Precursors Accumulating in Congenital Adrenal Hyperplasia lead to Transactivation of the Glucocorticoid Receptor

Pijnenburg-Kleizen Karijn , Engels Manon , Mooij Christiaan , Griffin Aliesha , Krone Nils , Span Paul , van Herwaarden Antonius , Sweep Fred , Claahsen-van der Grinten Hedi

Background: Congenital adrenal hyperplasia (CAH) patients are clinically often less severely affected by cortisol deficiency than anticipated from their enzymatic defect.Objective and hypotheses: We hypothesize that adrenal steroid hormone precursors that accumulate in untreated or poorly controlled CAH have glucocorticoid activity and partially compensate for cortisol deficiency. We aimed to determine the in vitro binding, translocation and tra...

hrp0097t2 | Section | ESPE2023

Effects of tiratricol treatment withdrawal in MCT8 deficiency: ReTRIACt Trial

Freund Matthijs , Chatterjee Krishna , van Geest Ferdy , van der Most Floor , Bowers Dominic , Persson Anders , J Bauer Andrew , Edward Visser W.

We introduce the ReTRIACt Trial (NCT05579327) of tiratricol (Triac) for MCT8-deficiency, a rare X-linked disease resulting from disordered thyroid hormone transport and characterized by profound neurodevelopmental delay and features of chronic peripheral thyrotoxicosis. The ReTRIACt Trial aims to verify the effects of tiratricol observed in previous studies. It is a double-blind, randomized, multicenter, placebo-controlled study to evaluate the effects of tiratricol discontinu...

hrp0097p1-332 | Multisystem Endocrine Disorders | ESPE2023

Results from learner’s feedback on the use of free, globally accessible CME-accredited e-learning modules in Paediatric Endocrinology and Diabetes

Idkowiak Jan , van Wijngaard-deVugt Conny , van der Zwan Yvonne , Abu-Libdeh Abdulsalam , Kalaitzoglou Evangelia , Karabouta Zacharoula , Drop Sten , M Boot Annemieke , May Ng Sze

Introduction: The ESPE e-Learning web portal is a free, globally accessible online tool to enhance learning in Paediatric Endocrinology and Diabetes. Since August 2022, the e-learning content includes 30 accredited hours of ESPE/ISPAD e-learning Continuing Medical Education (CME) courses with ten core modules each in Paediatric Endocrinology, Paediatric Endocrinology in Resource Limited Setting (RLS) and Paediatric Diabetes. The CME modules were created by wor...