hrp0084p3-986 | Gonads | ESPE2015

Optimal Strategy for Ovarian Function Assessment in Girls with Central Precocious Puberty before and During GnRH Analogue Treatment

Freire Analia , Gryngarten Mirta , Arcari Andrea , Ballerini Maria , Loreti Nazareth , Ambao Veronica , Bergada Ignacio , Campo Stella , Ropelato Maria

Background: The degree of suppression of the pituitary-ovarian axis in girls with central precocious puberty (CPP) under GnRH analogue (GnRHa) treatment is usually assessed at pituitary levels. However, the extent of ovarian function suppression under GnRHa treatment has not been evaluated.Objective: To evaluate ovarian activity in CPP girls before and during treatment with GnRHa.Patients and methods: In this prospective study, 11 ...

hrp0084p3-1040 | Growth | ESPE2015

Psychomotor Development in Children Born Small for Gestational Age During Early Infancy

Puga Beatriz , Olivan Maria J , Galve Zenaida , Rite Segundo , de Arriba Antonio , Ferrer Marta , Labarta Jose Ignacio , Ferrandez Angel

Background: Neurocognitive retardation is one of the most important consequences that small for gestational age (SGA) children may suffer although conflicting results have been published.Objective and hypotheses: The aim of this study was to study psychomotor development (PD) in children born SGA during the first two years of life in order to identify children at risk as early as possible.Method: 108 cases borh SGA have been studie...

hrp0097rfc7.5 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2023

Sex differences in endocrine mechanisms during early human fetal brain development

Buonocore Federica , Del Valle Ignacio , P. Suntharalingham Jenifer , Moreno Nadjeda , Developmental Biology Resource Human , C. Achermann John

Introduction: The influence of sex chromosomes and sex hormones on early human brain development is still poorly understood. Expression of Y chromosome genes may influence aspects of brain maturation in the 46,XY fetus, but the contribution of different Y genes is unknown. Furthermore, a marked increase in testicular testosterone biosynthesis/release from the testis occurs at around 8 weeks post conception (wpc) in the 46,XY fetus, but it is unclear whether te...

hrp0097t13 | Section | ESPE2023

Single-nuclei RNA sequencing reveals potential mechanisms of ovarian insufficiency in 45,X Turner Syndrome

M McGlacken-Byrne Sinead , Del Valle Ignacio , Xenakis Theodoros , Nel Lydia , Liptrot Danielle , Solanky Nita , C Conway Gerard

Background: Turner syndrome (TS) arises from a complete or partial loss of one X chromosome (45,X) and is the most common genetic cause of primary ovarian insufficiency (POI) in women. Surprisingly little is understood about the pathogenesis of POI in TS beyond an acknowledged germ cell loss throughout the second trimester. Although X chromosome haploinsufficiency likely contributes, the variability in reproductive phenotype in 45,X TS suggests it is not the o...

hrp0094p2-111 | Diabetes and insulin | ESPE2021

Prevalence of skin reactions among pediatrics patients with Type 1 Diabetes users of glucose sensors.

German Angulo Paloma , Del Valle Ferreras Marcos , Cristina Lopez Menau Maria , Lopez Sanchez Belen , Luna Bastante Loreto , Remedios Mateo Laura , Corredor Andres Beatriz ,

Introduction: Glucose sensors are medical devices used in glycaemic control of patients with type 1 diabetes (T1D) . Its use prevents multiple capillary measurements, improving disease control and quality of life. However, these systems are not exempt from unforeseen events. The rise in the number of users has resulted in the increasing detection of local skin reactions by these devices, being the most frequent the eczematous ones, which may correspond to irri...

hrp0095p1-147 | Pituitary, Neuroendocrinology and Puberty | ESPE2022

Prevalence of Polycystic Ovarian Syndrome (PCOS) In Girls with History of Idiopathic Central Precocious Puberty (ICPP).

Josefina Arcari Andrea , Verónica Freire Analía , Gabriela Ballerini María , María Díaz Marsiglia Yenifer , Bergadá Ignacio , Gabriela Ropelato María , Graciela Gryngarten Mirta

Introduction: The prevalence of PCOS in adolescents and young women was established at 4.3%. Whether women with a history of ICPP are at increased risk for PCOS is still controversial. There is no clear evidence that ICPP girls treated with GnRH analogues (GnRHa) are more likely to develop PCOS than their age-matched peers.Objectives: To assess the prevalence of PCOS in adolescents with a history of ICPP and further comp...

hrp0095p1-371 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2022

Exome sequencing reveals a high proportion of causal and candidate gene variants in a large early-onset Primary Ovarian Insufficiency cohort

M McGlacken-Byrne Sinead , P Suntharalingham Jenifer , Ishida Miho , Buonocore Federica , Del Valle Ignacio , Cameron-Pimblett Antoinette , Genomics UCL , T Dattani Mehul , S Conway Gerard , C Achermann John

Background: The presentation of early-onset Primary Ovarian Insufficiency (EO-POI), most often with primary amenorrhea, is at one end of a spectrum spanning 40 years. The aetiology of POI is frequently unclear but next generation sequencing of varied age groups has identified several associated genetic variants. Whether girls with EO-POI are more likely to have a genetic aetiology than those with later presentations remains unknown.<stro...

hrp0095p2-163 | Growth and Syndromes | ESPE2022

Beckwith-Wiedemann Syndrome: Two Familial Cases with CDKN1C gene variants

Freire Analía , Braslavsky Débora , Scaglia Paula , Esnaola Azcoiti María , Armando Romina , Rothenfusser Anna , Casali Bárbara , Arberas Claudia , Rey Rodolfo , Gabriela Ropelato María , Bergadá Ignacio

Introducción: Beckwith-Wiedemann syndrome (BWS) is a congenital disorder that includes features such as overgrowth, macroglossia, abdominal wall defects, neonatal hyperinsulinism, lateralized overgrowth and predisposition to embryonal tumors during infancy. BWS may be clinically diagnosed by a scoring system and genetic diagnosis is mainly focused to imprinting disorders on the 11p15.5 region. The presence of pathogenic inactivating variants on the mate...

hrp0095p2-185 | Growth and Syndromes | ESPE2022

Coexistence of (likely) pathogenic variants in two genes, EZH2 and PTEN, contribute to overgrowth and developmental delay phenotype in a female patient

Suco Sofia , Scaglia Paula , Esnaola Azcoiti Maria , Armando Romina , Braslavsky Debora , Sanguineti Nora , Arberas Claudia , Gabriela Ropelato Maria , Izquierdo Agustin , Bergada Ignacio , Keselman Ana

Introduction: Overgrowth syndromes comprise an heterogeneous group of rare disorders characterized by generalized or segmental excessive growth commonly associated with additional features, such as developmental delay, visceromegaly and macrocephaly. They may present with inherent health concerns and, in some instances, an increased risk of tumor development requiring prompt diagnosis and appropriate referral.Objective: ...

hrp0092fc14.1 | GH and IGF1 | ESPE2019

Inhibition of IGF1R by IGF1R/IR Inhibitor OSI906 as a Targeted Therapy for Glioblastoma: in vitro & in vivo Studies

Fernandez Maria Celia , Martin Ayelen , Clément Florencia , Venara Marcela , Fernanda Castro Julia , Lombardi Mercedes Garcia , Bergadá Ignacio , Pennisi Patricia

Background: CNS tumours are the most frequent solid tumours in children. In pediatric gliomas, IGF1R nuclear localization was significantly associated with both high grade tumours and increased risk of death and contributed to the aggressive phenotype of glioblastoma by increasing motility and metabolism of tumour cells rather than increasing its proliferation. For children chemotherapy after surgical resection is the mainstay of therapy. However, the best reg...