hrp0094p1-119 | Fat, Metabolism and Obesity B | ESPE2021

Diagnostic precision of the Tri-Ponderal Mass Index (kg/m3) to identify the metabolic risk phenotype in obese children and adolescents.

Arciniegas Larry , Tomasini Rosangela , Vega Elizabeth , Fabregas Ana , Clemente Maria , Yeste Diego ,

Introduction: The metabolically healthy obese phenotype (MHOF) defines obese patients who have preserved insulin sensitivity and who do not have metabolic complications: lower risk of cardiovascular disease and type 2 diabetes in adulthood. Recent studies indicate that TMI (kg/m3) estimates the percentage of body fat more accurately than the BMI and it has been proposed to substitute the use of the BMI z-score values by those of the TMI. TMI values ...

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...

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...

hrp0095p1-322 | Growth and Syndromes | ESPE2022

Analysis of genetic variability in 134 women with Turner Syndrome using high-throughput next-generation sequencing

P. Suntharalingham Jenifer , Ishida Miho , Cameron-Pimblett Antoinette , M. McGlacken-Byrne Sinead , Del Valle Ignacio , Buonocore Federica , Brooks Anthony , Kaur Madhan Gaganjit , Genomics Sequencing Facility UCL , S. Conway Gerard , C. Achermann John

Background: Turner syndrome (TS) affects 1:2,500 females and results from complete or partial loss of one of the X chromosomes. Typical traits associated with TS include short stature, primary ovarian insufficiency (POI), autoimmune diseases, and cardiovascular and endocrine disorders. Long-term follow-up is needed from the time of presentation into adult life. Several genetic mechanisms have been proposed to account for the development of TS-associated featur...

hrp0094fc4.6 | Diabetes | ESPE2021

Clinical and genetic heterogeneity of HNF4A/HNF1A mutations in a multicentre paediatric cohort

McGlacken-Byrne Sinead M. , Mohammad Jasmina Kallefullah , Conlon Niamh , Gubaeva Diliara , Siersbaek Julie , Jorgen Schou Anders , Demibilek Huseyin , Dastamani Antonia , Houghton Jayne , Brusgaard Klaus , Melikyan Maria , Christesen Henrik , Flanagan Sarah E. , Murphy Nuala P. , Shah Pratik ,

Objective: The complex clinical phenotypes arising from HNF4A and HNF1A mutations are similar and include diazoxide-responsive CHI from infancy and maturity-onset diabetes of the young (MODY) from adolescence. We aimed to characterise the clinical and genetic aspects of a cohort of paediatric patients with HNF4A or HNF1A mutations.Methods: Patients from five international centres over ...

hrp0094p1-170 | Growth B | ESPE2021

Facilitating Telehealth In A Tertiary Paediatric Endocrine Service: A Quality Improvement Initiative To Reduce The Discrepancy Between Parent-reported And Auxologist Height Measurements

McGlacken-Byrne Sinead M , Alexander Ashley , Tollerfield Sally , Atterbury Abigail , Antell Hannah , Mead Victor , Dastamani Antonia , Peters Catherine , Gan Hoong Wei , Amin Rakesh , Dattani Mehul T , Hoskins Steve , Katugampola Harshini ,

Background: The COVID-19 crisis required paediatric endocrinologists to rapidly adopt telehealth into their clinical practice. Accurate auxology is a cornerstone of paediatric endocrinology care and is needed to monitor growth and guide medication changes. Remote consultations depend upon parent-reported measurements. However, home height measurements are often inaccurate.Aim: We designed a quality improvement study with...

hrp0097fc7.2 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2023

Mapping the transcriptomic landscape of early human fetal ovary development through a clinically-focused lens

M McGlacken-Byrne Sinead , Del Torres Ignacio , P Suntharalingham Jenifer , Buonocore Federica , HDBR ICH , Crespo Berta , Moreno Nadjeda , C Simcock Ian , Arthurs Owen , Xenakis Theodoros , Niola Paola , Brooks Tony , T Dattani Mehul , C Achermann John

Introduction: Ovary development was once considered a largely passive process. RNA sequencing (RNAseq) approaches have allowed us to begin to characterise ovary development in previously unparalleled detail, revealing the process to be complex and, still, little understood. A challenge is synthesising and using these data to advance our understanding of clinical disease. Through a clinically-focused lens, we elucidate novel aspects of the transcriptional lands...

hrp0089rfc7.2 | Fetal, Neonatal Endocrinology and Metabolism | ESPE2018

Outcomes of a Quality Improvement Project Integrating Continuous Glucose Monitoring Systems into the Routine Management of Neonatal Hypoglycaemia

McGlacken-Byrne Sinead , Jenkinson Allan , O'Neill Roisin , Murphy John

Introduction: Empirical research studies suggest that continuous glucose monitoring systems (CGMS) are safe and could optimize neonatal hypoglycaemia management. However, they need to be tested within resource-limited, time-constrained clinical practice. CGMS was piloted in our Level 3 Neonatal Intensive Care Unit (NICU) in June 2017. Five key barriers to its effective implementation were identified: i) Lack of NICU staff confidence in device usage ii) Infant discomfort during...

hrp0082p1-d3-126 | Fat Metabolism &amp; Obesity (2) | ESPE2014

Dysautonomia and Acyl Ghrelin in Prader–Willi syndrome

Nyunt Ohn , Archbold Sinead , Donelly Jennifer , Jeffery Penelope , Cotterill Andrew , Davies Peter , Harris Mark

Background: Poor temperature regulation in Prader–Willi syndrome (PWS) suggests dysautonomia probably secondary to hypothalamic dysfunction. Autonomic nervous system (ANS) has control over orexigenic ghrelin.Objective and hypotheses: We aim to assess ANS function in PWS and its association with acyl ghrelin.Method: We recruited 16 genetically-confirmed children with PWS and 16 controls. Exclusion criteria were diabetes mellitu...

hrp0082p2-d3-481 | Hypoglycaemia | ESPE2014

Presentation, Clinical and Genetic Outcomes in a Series of Infants With Congenital Hyperinsulinism

Carroll Aoife , Gibney Brian , McDonnell Ciara , Moloney Sinead , Monavari Ardeshir , Murphy Nuala

Background: Congenital hyperinsulinism (CHI) is a rare condition but a significant cause of recurrent hypoglycaemia in infancy and childhood. Prompt recognition and appropriate management is important to avoid long-term neurological sequelae.Objective and hypotheses: To describe the presentation, clinical and genetic outcomes in a series of infants with CHI.Method: Retrospective case series of 35 patients diagnosed with CHI between...