hrp0086p1-p593 | Growth P1 | ESPE2016

The Mechanistic Role of Fibroblast Growth Factor 21 (FGF21) in Growth Hormone Resistance Secondary to Chronic Childhood Conditions

Mistry Jayna , Ruiz-Babot Gerard , Guasti Leonardo , Dunkel Leo

Background: Both undernutrition and chronic inflammation impair linear growth through resistance to GH. Fibroblast growth factor 21 (FGF21) is known as an important regulator of the metabolic adaptation to fasting. Elevated expression of FGF21, secondary to prolonged undernutrition has been identified to develop GH resistance and subsequent attenuation of skeletal growth and growth plate chondrogenesis in both mice and human. However, the mechanism of FGF21&#1...

hrp0094fc1.5 | Adrenal | ESPE2021

Outcome of COVID-19 infections in patients with adrenal insufficiency

Nowotny Hanna , Bryce Jillian , Giordano Roberta , Baronio Federico , Chifu Irina , Cools Martine , van den Akker Erica L.T. , Falhammar Henrik , Appelman-Dijkstra Natasha , Persani Luca , Beccuti Guglielmo , Grozinsky-Glasberg Simona , Pereira Alberto M. , Husebye Eystein , Hahner Stefanie , Ahmed S. Faisal , Reisch Nicole

Background: Clinical outcome data of patients with adrenal insufficiency, who were affected by COVID-19, have been collected as a common initiative by the ESE Rare Disease Committee and ENDO-ERN via the European Registries for Rare Endocrine Conditions (EuRRECa) project. Methods: This Webropol-based questionnaire included a total of 32 questions collecting quantitative and qualitative data. Of the 19 medical centres out ...

hrp0086rfc11.1 | Thyroid | ESPE2016

Central Hypothyroidism and Biallelic Defect Near the D/ERY Motif of the TRHR Gene

Garcia Marta , de Buitrago Jesus Gonzalez , Pardo Leonardo , Hinkle Patricia M. , Moreno Jose C.

Background: The TRH receptor (TRHR) is a G-protein coupled receptor activated by hypothalamic TRH. In thyrotropes, TRH-TRHR signalling controls synthesis, secretion and bioactivity of TSH. Human TRHR defects are extremely rare, and only three cases are known with central hypothyroidism and short stature as variable presenting feature.Objective and hypotheses: Phenotypical characterization of a family with suspected central hypothyroidism and inv...

hrp0097fc13.3 | Pituitary, neuroendocrinology and puberty 2 | ESPE2023

Variants in Methyl-CpG-binding protein 2 (MECP2) are associated with X-Linked Central Precocious Puberty

E Read Jordan , Guasti Leonardo , Paganoni Alyssa , Korbonits Marta , R Howard Sasha

Whilst several key genetic contributors to the phenotype of central precocious puberty (CPP) have been recognized, many familial cases remain without clear a genetic aetiology. Causal genetic variants are reported in imprinted genes Makorin ring finger protein 3 (MKRN3) and Delta-like homolog 1 (DLK1), alongside Kisspeptin-1 (KISS1) and (KISSR1), implicating mis-regulation of transcriptional control of the kisspeptin and GnRH neuroendocrine systems in onset of CPP. We recently...

hrp0097p1-102 | GH and IGFs | ESPE2023

Assessment of clinical pediatric perception of short stature in childhood and challenges to treat with Growth Hormone in Brazil: A exploratory evaluation of a developing country daily practice.

Barquero Paula , Aranha Pedro , Souza Leonardo , Careli Guilherme , Veçoso Marcos , Freire Daniel , Sato Cleber

Background: Concerns about a child's growth are one of the most common topics parents express during pediatric visits and are a leading cause for referral to a pediatric endocrinologist. For the general pediatric, when short stature is diagnosed, its clinical management remains a challenge.Objective: The aim of the study was to approach and understand the perception from the general pediatrician about short stature,...

hrp0094p2-234 | Fetal, neonatal endocrinology and metabolism (to include hypoglycaemia) | ESPE2021

Continuous Glucose Monitoring (CGM) Reveals Undertreated Hypoglycemia in Patients with Congenital Hyperinsulinism

Hood Davelyn E. , Roberts Brian K. , Neale Ann , Raskin Julie ,

Introduction: Congenital Hyperinsulinism (CHI) is the most frequent cause of severe, persistent hypoglycemia in children. Despite current treatments, patients/caregivers report continued hypoglycemia according to the HI Global Registry 2020 Annual Report. Published literature characterizing hypoglycemia in CHI patients on standard of care (SOC) therapies is lacking.Objective: To quantify the extent of hypoglycemia in CHI...

hrp0092fc15.4 | Late Breaking Abstracts | ESPE2019

Defects in the GnRH Neuroendocrine Network Affect the Timing of Puberty

Saengkaew Tansit , Mancini Alessandra , Ruiz-Babot Gerard , Cabrera Claudia , Barnes Michael , Dunkel Leo , Guasti Leonardo , Howard Sasha

Background: Self-limited delayed puberty (DP) is an extreme variant of normal pubertal timing and it often clusters in families. Although it is highly heritable and is the most common cause of delayed puberty, little is known about the genetic control. GnRH neuronal biology has been implicated as a key element in the pathogenesis of DP. By focusing on genes involved in GnRH neuron development, migration and function we may understand more about the genetic bas...

hrp0089ha1 | EAP1 mutations cause an impaired transcriptional activity on GnRH promoter that leads to self-limited delayed puberty | ESPE2018

EAP1 Mutations Cause an Impaired Transcriptional Activity on GnRH Promoter that Leads to Self-Limited Delayed Puberty

Mancini Alessandra , Howard Sasha R , Cabrera Claudia P , Barnes Michael R , Heger Sabine , Guasti Leonardo , Ojeda Sergio , Dunkel Leo

Background: The initiation of puberty is orchestrated by the augmentation in the secretion of gonadotropin-releasing hormone (GnRH) from a few thousand neurons located in the hypothalamus. Recent findings identified that the neuroendocrine control of puberty is regulated by a network of transcriptional factors hierarchically organized, but this still remains not fully elucidated. Enhanced At Puberty 1 (EAP1) is one of the main regulators of pubertal onset and it is ex...

hrp0086fc12.2 | Neuroendocrinology | ESPE2016

LGR4 and EAP1 Mutations are Implicated in the Phenotype of Self-limited Delayed Puberty

Mancini Alessandra , Howard Sasha R , Ruiz-Babot Gerard , Cabrera Claudia P , Barnes Michael R , Guasti Leonardo , Dunkel Leo

Background: Aberrations in the timing of puberty may result in significant adverse health outcomes, including cancers, cardiovascular and neurological pathologies. Self-limited delayed puberty (DP) (i.e. constitutional delay of puberty) runs in families with either autosomal dominant or complex inheritance patterns in >70% of families, indicating a strong genetic basis of the trait. However, only a few genes have been identified underlying DP so far....

hrp0094fc7.1 | Fetal Endocrinology and Multisystem Disorders | ESPE2021

The Use Of e-REC For Capturing The Occurrence Of COVID-19 Infections In People With Rare Endocrine Conditions

Bryce Jillian , Di Guisto Vicki , Ali Salma R. , Alexandraki Krystallenia , Badiu Corin , Baronio Federico , Biermasz Nienke R. , Brandi Maria Luisa , Castinetti Frederic , Ceccato Filippo , Chifu Irina-Oana , Cools Martine , Danne Thomas , Druce Maralyn , Esposito Daniela , Falhammar Henrik , Fugazzola Laura , Gan Hoong-Wei , Giordano Roberta , Isidori Andrea M. , Johannsson Gudmundur , Karavitaki Niki , Linglart Agnes , Luger Anton , Maffei Pietro , Marazuela Monica , Jaksic Vladka Pandzic , Paschou Stavroula A. , Persani Luca , Domingo Manuel Puig , Reisch Nicole , Schalin-Jantti Camilla , Akker van den Erica L.T. , Vassiliadi Dimitra , Young Jacques , Appelman-Dijkstra Natasha , Grozinsky-Glasberg Simona , Pereira Alberto M. , Ahmed S. Faisal ,

Introduction: Following the onset of the COVID-19 pandemic in early spring 2020, there was a need to identify the burden of this infection on people with rare endocrine conditions. The European Registries For Rare Endocrine Conditions (EuRRECa) was launched in 2018 in collaboration with Endo-ERN, ESPE and ESE to support the needs of the wider endocrine community. The project consists of an e-reporting (e-REC) platform that allows monthly reporting of new clini...