ESPE Abstracts

Background: Hereditary hypophosphatemic rickets (HR) is a group of rare diseases with disordered phosphate metabolism. The Norwegian cohort of HR patients has not previously been described.Objective and hypotheses: The aim of the study was to characterize the genotype, phenotype, and complications to treatment in a national cohort of Norwegian children HR.Method: For assessment of genotype, Sanger sequencing of PHEX, FGF23, DMP...

Background: Transient hypoparathyroidism is a recognised cause of hypocalcaemia during the neonatal period and difficult to differentiate from permanent forms.Objective and hypotheses: We present the challenges of monitoring and managing neonates with hypocalcaemia and inappropriately low PTH.Method: Cases 1 and 2 had congenital heart disease (CHD) but were FISH negative for 22q11 deletion. Both were treated with supplemental doses...

Background: Prolactinomas are relatively rare during childhood, with an incidence of 0.1 per million. Children with hyperprolactinaemia have widely varied presentations depending on age, sex, and tumour size. Whilst adults typically present with galactorrhoea or hypogonadism, children tend to present with pubertal delay and growth issues.Objective and hypotheses: Poorer surgical outcomes have been reported in children with macroprolactinomas compared to ...

Objective: Silver-Russell Syndrome (SRS) is a rare disorder characterized by growth restriction and distinctive phenotypic features. The underlying mechanisms include loss of methylation on chromosome 11p15 and maternal uniparental disomy of chromosome 7. While feeding difficulties and gastrointestinal (GI) symptoms are prevalent during childhood, their manifestation and severity in adulthood remain unclear. This study aim ed to evaluate the presence and sever...

Background: Many children with short stature (defined as height SDS <−2S.D.) have no identified cause for their growth impairment and are classified as either small for gestational age or idiopathic short stature depending on birth size. Whole exome sequencing (WES) is a useful tool to identify new genetic diagnoses in this group. Here we describe a recurrent NDUFB3 mutation in children with intra-uterine growth retardation, short stature and ...

Background: In a Phase 3 trial in participants with obesity due to Bardet-Biedl syndrome (BBS) and Alström syndrome, setmelanotide was associated with significant reduction from baseline in body weight and hunger at Week 52 (primary endpoint), with outcomes driven by responses in individuals with BBS.Methods: In the same trial (NCT03746522), individuals with BBS or Alström syndrome were randomized and received ...

Introduction: Adolescents are considered the main consumer group of Energy Drinks (EDs). EDs are associated with adverse cardiovascular events, such as severe cardiac arrhythmia or arterial hypertension. Recent studies of our department revealed a significantly increased brachial blood pressure and arterial stiffness after the acute ED consumption in healthy adolescents. Increased central blood pressure is linked with the onset of end-organ damages such as lef...

Introduction: Turner syndrome (TS) is a rare X-chromosomal disease, which affects one in 2500-3000 female newborns. TS is associated with a distinct cardiovascular morbidity and mortality. Arterial hypertension is present in up to 50% of young TS women and closely related to the onset of aortic dilatation and dissection. The effective management of arterial hypertension can be considered as crucial to improve overall cardiovascular outcome of TS women. In the ...

Background: Children born SGA are known to develop cardiometabolic conditions in adulthood1. Nothing is known about the relationship of the transcriptome (gene expression) and epigenome (DNA methylation) to birth size and the future development of cardiometabolic disease.Aim: To identify, I) differences and functional links between epigenome age-7years, transcriptome age-9years associated and ...

Background: Current data from genome wide association studies (GWAS) explains 24.6% of the variation in adult height from 3290 single nucleotide polymorphisms (SNPs)1. Data on the genetic control of growth velocity during childhood is more limited and no previous studies have linked childhood growth to changes in the transcriptome (gene expression) or epigenome (DNA methylation). Here we present a systems biology approach to understand mid-child...