ESPE Abstracts

Background: 80–95% of congenital adrenal hyperplasia (CAH) cases are due to mutations in the CYP21A2 gene encoding 21 hydroxylase. The residual activity of the gene defines the clinical form. Routine mutational screening of CYP21A2 defects is shown to effectively support the complex diagnostic and treatment procedure of newborns with CAH.Objective: We aimed to characterise the phenotype of a girl with compound heterozygosity of ...

The purpose of this study is to determine the frequency of occurrence and molecular-genetic characteristics of MODY in patients with diabetes mellitus aged 1 to 18 years, residents of St. Petersburg.Materials and methods: In St. Petersburg in 2017, there were 1620 patients with diabetes mellitus under the age of 18 years. 54 of them had evidence of hereditary variants of diabetes with chronic hyperglycemia at normal c-peptide indices for 2 years after th...

Background: Insulin-like growth factor I (IGF-I) is one of the important hormonal mediators of human growth. Circulating IGF-I exists in a ternary complex bound to the acid-labile subunit (ALS) and one of its six binding proteins (BPs). IGF-I bound to ALS and BPs needs to be liberated by either Pregnancy Associated Plasma Protease A (PAPP-A) or A2 (PAPP-A2) to reach its receptor. Stanniocalcin 2 (STC2) is a potent inhibitor of both PAPP-A and PAPP-A2. Genome-wide association s...

Background: Pituitary gigantism is an extremely rare disorder characterised by GH excess that occurs before fusion of the epiphyseal growth plates.Case summary: A 13 years 6 month old Chinese boy presented to the paediatric endocrine outpatient clinic with tall stature. He was noted by his parents to have a continued growth spurt since 9 years old, and he required new shoes and clothes every school term. He had no headaches or visual disturbances. There ...

Background: Congenital hyperinsulinism (CHI) is a rare group of genetic disorders resulting in persistent hypoglycemia which can lead to a considerable risk of neurological damage and developmental delay.Aim: To assess the neurodevelopmental outcome in children with CHI.Methods: Thirty-three patients with СHI aged from 7 to 58 months were included. All subjects underwent clinic...

Background: This case underlines the importance of a newborn screening programme combined with genotyping for confirmation and prognosis of disease severity.Objective and hypotheses: Case presentation of a girl with three CYP21A2 mutations.Method: Girl, born from first uneventful pregnancy per vias naturalis. Birthweight 3200 g, birthlenght 50 cm. Intensive jaundice, start at d3, necessitating phototherapy. Discharged from...

Background: Noonan Syndrome (NS) can overlap clinically and biochemically with growth hormone insensitivity [GHI; short stature (SS), low IGF-I and normal/elevated GH levels]. Mutations in multiple genes regulating RAS/MAPK pathway have been identified in NS including LZTR1 variants. Function of LZTR1 is poorly understood and its role in growth retardation is unknown.Objectives: To functionally characte...

Background: Acquired hypothalamic damage frequently causes obesity (BMI ≥30 kg/m2), often refractory to treatment. The interaction of hormonal, neuronal and psychological factors underlying hypothalamic obesity (HO) remains poorly understood.Methods: In fasted and fed states participants underwent blood sampling (GLP-1, insulin, PYY, ghrelin and glucose), fMRI scanning (viewing food/non-food photographs) and assessment of hunger and sati...

Introduction: Congenital hyperinsulinism(CHI) is a rare complex disorder of hypoglycaemia attributable to inappropriate and dysregulated insulin secretion from the pancreas with an incidence of 1:50 000(1:2500 in consanguineous populations). Genetics involves defects mainly in the KATP channel genes ABCC8 and KCNJ11.Aim: We describe a male infant, presented with refractory hypoglycaemia the first week of life.<p clas...

Introduction: Autoimmune polyendocrinopathy syndrome (APS) is an inherited rare autosomal recessive disorder caused by mutations of the AIRE (autoimmune regulator) gene with organ-specific autoimmune destruction of several, mostly endocrine. APS patients may develop autoimmune enteropathies and other intestinal dysfunctions.Aim: We describe a case of eosinophilic ascites in a nine-year-old girl with APS.<p c...