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58th Annual ESPE

Vienna, Austria
19 Sep 2019 - 21 Sep 2019

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The theme of this year’s meeting is Variety and Variation in Paediatric Endocrinology. Join us in Vienna to explore the diversity we encounter in our discipline and the care that we have to exercise when using the term “normality”. Whilst gaining an update on the latest treatments, clinical best practice and cutting edge research in the field of paediatric endocrinology.

Free Communications

Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology

hrp0092fc10.1 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Investigating the Roles of Androgens in Male Reproductive Development, Maintenance and Function by Characterisation of Androgen and Cortisol Deficient 11ß-Hydroxylase Mutant Zebrafish Lines

Oakes James A , Storbeck Karl-Heinz , Cunliffe Vincent T , Krone Nils P

The zebrafish is established as an important model system for studying development and disease, and characterisation of the developmental and functional roles of steroids is crucial for its effective employment in this remit. Whilst oestrogens are known to be essential for female development in zebrafish, the roles of androgens in the development, maintenance and function of the male reproductive system remain unclear.In order to investigate these proces...

hrp0092fc10.2 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

The Fruit Fly, Drosophila Melanogaster, as a Model to Elucidate Human Differences of Sex Development (DSD)

Mercadé Ivan Domènech , Sotillos Sol , Gutiérrez Daniel Rodríguez , Nef Serge , Hombría James C-G , Biason-Lauber Anna

Background: An activation cascade of specific genes sets up the initiation of sex determination leading in males to testes formation and synthesis of testicular hormones. Disruption of this gene cascade may cause a spectrum of disorders/differences of sex development (DSD) phenotypes. Here we describe for the first time two sisters suffering from 46,XY DSD, who by whole exome sequencing were shown to carry a mutation in the X-linked StAR-related lipid transfer...

hrp0092fc10.3 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Mutations in the DEAH-box RNA Helicase DHX37 are a Frequent Cause of 46,XY Gonadal Dysgenesis and 46,XY Testicular Regression Syndrome

McElreavey Ken , Jorgensen Anne , Eozenou Caroline , Merel Tiphanie , Bignon-Topalovic Joelle , Tan Daisy , Houzelstein Denis , Buonocore Federica , Warr Nigel , Kay Raissa , Peycelon Mathieu , Siffroi Jean-Pierre , Mazen Inas , Achermann John , Shcherbak Yuliya , Leger Julienne , Sallai Agnes , Carel Jean-Claude , Martinerie Laetitia , Le Ru Romain , Conway Gerald , Mignot Brigitte , Van Maldergem Lionel , Bertalan Rita , Globa Evgenia , Brauner Raja , Jauch Ralf , Nef Serge , Greenfield Andy , Bashamboo Anu

XY individuals with Disorders/Differences of Sex development (DSD) are characterized by reduced androgenization caused, in some children, by gonadal dysgenesis or, more rarely, testis regression during early fetal development. The genetic etiology for most patients with 46,XY gonadal dysgenesis and for all patients with testicular regression syndrome (TRS) is unknown. Identification of novel genes involved in DSD is crucial for providing an accurate clinical diagnosis, aiding ...

hrp0092fc10.4 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Loss-Of-Function and Missense Mutations in MYRF are a Novel Cause of Autosomal Dominant 46,XY Leydig Cell Hypoplasia and 46,XY Gonadal Dysgenesis

McElreavey Ken , Globa Evgenia , Bertalan Rita , Bignon-Topalovic Joelle , Brauner Raja , Bashamboo Anu

MYRF is known to regulate the myelination of the central nervous system and mice with a conditional deletion of MYRF in oligodendrocyte precursors has anomalies of motor skill. Recently, several loss-of-function and missense mutations in MYRF have been reported in association with syndromic forms of congenital heart disease (CHD) with elements of Scimitar syndrome and/or with congenital diaphragmatic hernia (CDH). In most 46,XY individuals a range of...

hrp0092fc10.5 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Transcriptome Analysis of Novel Sertoli Cell Models to Highlight Potential Genes Involved in DSD Mechanism of Disease

Gutiérrez Daniel Rodríguez , Sproll Patrick , Biason-Lauber Anna

Background: Determination of the gonads in men is closely dependent on Sertoli cells differentiation and maturation. Many cases of differences of sex development (DSD) are caused by variations in these processes. The study of the mechanisms underlying these complex conditions is crucial for optimal clinical management and Sertoli cells would be an ideal model for this purpose. Our human Sertoli-like cell model (SLCs) may shed some light on the identification o...

hrp0092fc10.6 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Evaluation of Basal and GNRH-stimulated AMH Levels in Central Precocious Puberty, Peripheral Precocious Puberty and Premature Thelarche

Sahin Nursel Muratoglu , Yilmaz Aslihan Arasli , Erdeve Senay Savas , Cetinkaya Semra , Aycan Zehra

Objective: AMH decreases by 30% in the first two years following puberty. Although it is known that AMH is associated with FSH and LH, the AMH response to rapid changes in GnRH is not known clearly in puberty. It has been shown that AMH levels in central precocious puberty (CPP) are lower than in premature thelarche (PT), but the levels of AMH in peripheral precocious puberty (PPP) have not been evaluated. The aim of this study was to evaluate the basal an...