ESPE Abstracts

Background: In children with Prader–Willi Syndrome (PWS), hypothalamic dysfunction plays a key role in the development of aberrant energy regulation, sleep-related breathing disorders, hypogonadism and impaired linear growth. Dysfunction of the hypothalamic–pituitary–adrenal (HPA) axis may contribute to the high incidence of sudden death. The prevalence and the extent of the dysfunction of HPA axis remain unclear.Method: Thirty-one (10M/21...

Background: Neonatal vitamin D deficiency (VDD) can result in symptomatic hypocalcemia, seizures and cardiomyopathy and has been associated with reduced bone mineralization in childhood, but is potentially preventable with antenatal cholecalciferol supplementation. Single nucleotide polymorphisms (SNP) in the vitamin D metabolism pathway are associated with serum 25-hydroxyvitamin D [25(OH)D] in adulthood. We assessed whether maternal and/or offspring SNPs in ...

Monogenic autoimmune diabetes results from a single highly penetrant mutation that causes autoimmunity leading to destruction of the beta-cells. Identifying monogenic autoimmune diabetes can be a challenge; early-onset type 1 diabetes (T1D) can cluster with additional autoimmune diseases due to shared polygenic risk, particularly from the HLA DR3 and DR4 alleles, and islet and other organ specific autoantibodies are present in patients with both monogenic and polygenic aetiolo...

Traditional medical management of children born with atypical genitals includes genital surgery during early childhood. Young children cannot give informed consent and surgery is usually undertaken after a decision made by the multidisciplinary team with parental input. Long-term outcomes are uncertain and there is scanty research supporting the benefits of surgery on physical or mental well-being. Adult patients clearly describe the distress of multiple genital operations dur...

Introduction: To investigate the association between Turners Syndrome (TS) and Gastrointestingal Stromal tumours (GIST) in a single case study. There is a known link between RASopathies such as TS and solid tumours (gonadoblastoma, neuroblastoma and brain tumours,) however no known link between TS and GIST. The aim is to increase awareness into a rare condition and discuss growth hormone (GH) therapy.Case: An 11-year-old girl with backgr...

Introduction: Glucose sensor usage is increasing in the paediatric type 1 diabetes population. The sensor downloads can provide valuable information about glycaemic levels over a 90-day period and generate an estimated HbA1c based on the average glucose level.Aim: We aimed to test whether the sensor-estimated HbA1c over 90 days was an accurate prediction of the measured HbA1c and whether its accuracy correlated with perc...

Introduction: De novo and inherited cases of 16p11.2 microdeletion and duplication syndromes have a spectrum of clinical manifestations, with incomplete penetrance and variable expressivity.16p11.2 copy number variants have shared phenotypic features (autism, developmental delay). Mirror phenotypes have also been described: deletions – obesity, hyperphagia, macrocephaly; duplications – underweight, feeding/eating disor...

Background: Pancreatic agenesis has been reported as a cause of neonatal diabetes. Most commonly it was associated with severe neurodevelopmental problems caused by homozygous mutations in the transcription factor PTF1A. Isolated pancreatic agenesis was related to biallelic mutations in an enhancer located near PTF1A gene, which suggests that the enhancer is tissue specific to the pancreas. PDX1 is another transcription factor gene in which biallelic mutation ...

A 16 year old boy initially presented with short stature at age 6, with height <0.4th centile (HSDS -2.78). Bone age was 1.9 years delayed, and growth hormone deficiency was diagnosed after 2 stimulation tests. The rest of his pituitary function was normal. He never had pituitary imaging. Growth hormone treatment was started, and he had an excellent growth response with HSDS improving to -1.57 by 10 years. The growth hormone treatment was discontinued when the family reloca...

Short-chain L-3-hydroxyacyl-CoA (SCHAD, HADH) deficiency is characterized by diazoxide-responsive hyperinsulinemic hypoglycemia in the neonatal or infancy periods. These patients have severe protein (especially leucine) sensitivity. HADH mutations are recessively inherited with less than 50 patients reported so far. The mechanism behind unregulated insulin secretion in SCHAD deficiency is not understood but may involve changes in protein-protein interactions with glutamate deh...