ESPE Abstracts

Background: Loss of imprinting has been implicated in the pathogenesis of several human diseases. Monogenic causes of central precocious puberty (CPP) were identified in families with loss-of-function mutations in two paternally expressed imprinted genes: Makorin zinc finger 3 (MKRN3) and Delta-like 1 homolog (DLK1). The role of imprinting defects in CPP has not been described so far.Objective: To inves...

Background: Children born small for gestational age (SGA) exhibit wide variations in the activity of growth hormone (GH)/insulin–like growth factor–I (IGF-I) axis and this heterogeneity may result in supra physiological concentrations of IGF-I during GH treatment. The long-term effects of elevated IGF-I levels has been a matter of concern. We explored the variations in total IGF-I and bioactive IGF-I and the associations with growth and glucose metab...

Backgrounds/Aims: Studies related to changes in thyroid hormone metabolism in the course of chronic liver diseases have been conducted mostly in adults. In this study, we aimed to investigate the thyroid dysfunction in childhood chronic liver diseases.Methods: Between 2005 and 2018, 960 chronic liver disease patient file that followed in our gastroenterology department are reviewed. Among all study subjects, 107 (53 fema...

Introduction: The most common causes of hyperthyroidism in the pediatric age group are autoimmune conditions (Graves' disease or Hashitoxicosis). Hyperfunctioning thyroid carcinomas are rarely reported. In this case report, we present a 17-year-old girl who was diagnosed with papillary thyroid carcinoma upon testing for hyperthyroidism.Case: A 17-year-old girl had presented to another center with a 1-month history of...

Background: The Low dose dexamethasone suppression test (LDDST) is an important investigation for suspected Cushing’s Syndrome (CS). The traditional definition of normal suppression of serum cortisol to ≤50 nmol/l during the LDDST (0.5 mg 6 hrly × 48 h) comes from a time when biochemical autoanalysers did not routinely detect very low values. Previous studies reported 5.1–8.3% of patients with Cushing’s Disease (CD) suppressed to <50 nmol/l at 48 ...

Objective: Type 1 diabetes in childhood is associated with an increased risk of psychiatric morbidities. We investigated predictors and diabetes outcomes in a pediatric population with psychiatric comorbidities.Research Design and Methods: Nationwide pediatric registerbased study. Data from the Danish national childhood diabetes register (DanDiabKids) and The National Patient Register were collected (1996–2015) for this population-based study. We us...

Introduction: Duplications of SOX3 at Xq27.1 are known to be associated with a spectrum of midline defects, isolated/multiple pituitary hormone deficiencies and learning difficulties. We report 5 cases of SOX3 duplication with hypopituitarism and differing presentations. 1)Male neonate presented with poor feeding and prolonged jaundice. Investigations revealed central hypothyroidism and inadequate cortisol response to Synacthen. Appropriate hormone replacemen...

Background: A mutation in EIF2S3 (NM_001415; Xp22.11) was previously associated with microcephaly and developmental delay in a single pedigree. EIF2S3 encodes the eukaryotic translation initiation factor 2 subunit 3 (eIF2γ), the largest of three EIF2 subunits. EIF2 initiates protein synthesis by forming a ternary complex with GTP and initiator methionyl-tRNA which then binds to the 40S ribosomal subunit, enabling scanning of mRNA from the 5′ end to...

Background: DLK1 or PREF1 is an imprinted gene highly expressed from the paternal allele in embryonic tissues and placenta. It has been recently implicated in adipose tissue expansion and diabetes development. The human rs1802710 polymorphism (SNP) in DLK1 gene has been associated with early-onset extreme obesity but its role determining growth is unknown.Objective and hypotheses: To study the preferential paternal transmission...

Background: The phenotypic effects of single nucleotide polymorphisms (SNPs) may depend on their parental origin. PLAGL1 is an imprinted gene expressed from the paternal allele in placenta that is associated with fetal growth, transient neonatal diabetes mellitus and postnatal growth disorders. The mechanisms whereby PLAG1 regulates fetal growth are, however, unknown.Objective and hypotheses: To study if the preferential paternal transm...