ESPE Abstracts

Introduction: Aggrecan is a major proteoglycan component of the articular and growth plate extracellular matrix, encoded by the ACAN gene (MIM: 155760). Although short stature and various dysmorphic findings are observed in individuals with ACAN mutations, the relationship between genotype and phenotype is not clear.Case: A 6.75-year-old pre-pubertal girl presented with disproportionate short stature. She was full term f...

Introduction: The aim of this study was to investigate the molecular genetic etiology and to determine the relationship between genotype and phenotype with targeted next-generation sequence (NGS)analysis.Method: Patients with a clinical diagnosis of OI were included in the study. Initially, mutations in COL1A1 and COL1A2 genes which are known to be most responsible for OI were investigated. In the second step, a targeted...

We investigated the reference values of liver enzymes based on cardiometabolic risks among children and adolescents using the Korea National Health and Nutrition Examination Survey (KNHANES). A total of 8,091 subjects aged 10-18 years were included data from 2007-2017. Overall, Aspartate aminotransferase (AST), alanine aminotransferase (ALT), and the AST/ALT ratio varied with sex and age. AST levels tended to decrease with age, but ALT levels had a U-shaped curve, which result...

Background: Normal thyroid function is necessary for the optimal growth promoting effects of GH. Changes in the hypothalamic-pituitary-thyroid (HPT) axis following GH have been reported in subjects initially thought to be euthyroid. A specific group of patients, children with Prader-Willi syndrome (PWS), are thought to have a ‘vulnerable’ HPT axis.Objective and hypotheses: To evaluate the impact of paediatric GH therapy on thyroid hormone statu...

Introduction: In cases of disorder of sex development (DSD), the change between the gender assigned at birth and the individual's chosen gender identity can occur especially after puberty.Aim: was to determine the relationship between genetic sex, gender assigned at birth and gender identity, and the importance of molecular diagnosis.Method:154patients older than 14years of ag...

Giant prolactinomas are rare tumours, with a prevalence of 0.5–4.4% among all pituitary tumours. In the literature, relatively few series describing their management and outcomes are available; moreover, only individual case reports of giant prolactinomas in children have been documented. We report a 10-year-old boy presented with painless progressive vision loss, insidious in onset, and bitemporal headache of six mounths duration. On physical examination; height: 134.2 ...

Background: Aldosterone synthase deficiency (ASD) caused by mutations in the CYP11B2 gene is characterized by isolated mineralocorticoid deficiency. Data is scarce regarding clinical and biochemical outcomes of the disease in the follow-up.Objective: Assessment of the growth and steroid profiles of patients with ASD at the time of diagnosis and after termination of treatment.Design an...

Background: Mutations in the nicotinamide nucleotide transhydrogenase (NNT) gene are a rare cause of primary adrenal insufficiency (PAI), as well as cardiomyopathies and functional impairment of the gonads.Objective: Despite the description of different NNT mutations in homozygosis and compound heterozygosis in PAI patients, it remains to be clarified to which extent the function and expression of the m...

Background: Congenital Central Hypoventilation Syndrome (CCHS) is a rare disorder of respiratory control resulting from heterozygous polyalanine repeat expansions within the Paired-Like Homeobox 2B (PHOX2B) gene. A hypoglycaemic seizure in a 4-year-old girl with CCHS, lead to a more detailed examination of glycaemic control in a cohort of children with CCHS.Objective: To describe glucose homeostasis in children with CCHS.M...

Background: Prader-Willi Syndrome (PWS) is a complex genetic disorder characterised by developmental and growth abnormalities, insatiable appetite, and excessive eating (hyperphagia). Hyperphagia is thought to be driven by supraphysiological levels of the appetite stimulating hormone ghrelin; however, the underlying causes of hyperghrelinaemia in PWS are currently unknown. Recently, ghrelin-reactive autoantibodies (isotype IgG) were identified in non-genetic obesity and were f...