ESPE Abstracts

MicroRNAs (miRNAs) are small non-coding RNA molecules and play an important role in the post-transcriptional regulation of gene expression and thereby influence important cellular functions. In adipocytes, miRNAs regulate key processes such as differentiation, inflammation, metabolism, and adipokine secretion. Recently, we found that miR-27a is upregulated under proinflammatory conditions in human adipocytes. Thus, our goal was to better understand the function of miR-27a in a...

Background and Objective: Homozygous mutations in the “Centrosomal Protein-19 (CEP19)” gene are extremely rare causes of early-onset severe monogenic obesity. We, herein, report three siblings with CEP19 mutation.Case Presentation and Method: The index case was a 12-years-old female who presented with severe obesity (BMI:62.7kg/m2), metabolic syndrome and diabetic ketoacidosis. Her non-identical twin female s...

Introduction: Following the onset of the COVID-19 pandemic in spring 2020, the European Registries For Rare Endocrine Conditions (EuRRECa), which is a collaboration between Endo-ERN, ESPE and ESE provided the possibility for registration of cases. Obesity is a risk factor for severe COVID-19 disease course in adults. In children and adolescents, COVID-19 disease course is much milder, but has also been identified as risk factor. As rare genetic obesity disorde...

Objectives: Despite high prevalence rates of childhood obesity, youth-onset T2DM occurs in a comparably lower incidence in Europe than in other world regions. Available data from cohorts of obese children and adolescents living in the US suggest a parallel decline of insulin sensitivity and β-cell function as key factors in the pathophysiology of early-onset T2DM. If these results can be applied to European children and adolescents is currently unknown.</...

Introduction: Congenital leptin deficiency can be treated with the human leptin analogon metreleptin as first reported in 1999. To date, the long-term effects (> 1 year) of metreleptin treatment on anthropometry and comorbidities have only been described in 8 patients with leptin deficiency. Here, we present the long-term effects of metreleptin substitution on weight and comorbidities in a patient with bioinactive leptin.Metho...

The 5α-reductase deficiency type 2 is a rare autosomal recessive 46,XY disorder of sexual development (DSD), presenting with a wide clinical spectrum ranging from a male phenotype with hypospadias to a female phenotype with wolffian structures. Here we report about the clinical, hormonal and molecular characterization of two siblings with a mutation in the SRD5A2 gene, as well as the challenge of gender identity and the importance of psychosocial care. The older sibling ...

Congenital hyperinsulinism (CHI) is a complex heterogeneous disease affecting 1 in 40.000 newborns. Recurrent hypoketotic hypoglycaemia led to permanent mental and motor disabilities in 30-40% of children. Histologically three types had been differentiated: focal, diffuse and atypical. Up to now, only focal-type CHI can be permanently cured by focus removal. Focal-type CHI is characterized by paternal inherited mutation of ABCC8 or KCNJ11 mutations. Therefore mutation anal...

Purpose: To track the effects of growth hormone on bone geometry and maturation in children with isolated growth hormone deficiency (GHD).Methods: 299 left hand X-rays from 77 short prepubertal children (54 boys and 23 girls) with isolated GHD were analysed for changes in metacarpal thickness, width, length, medullary diameter, the Bone Health Index (BHI) and bone age (BA) from one year preceding until four years after s...

Objectives: Impaired fasting glucose (IFG) is a risk factor for the development of type 2 diabetes in adults. In obese children and adolescents, IFG and impaired glucose tolerance constitute distinct prediabetic stages, which do not necessarily coexist. Pathophysiological mechanisms leading to IFG in children have not been fully elucidated. Available data from cohorts of obese adolescents living in the US suggest a concurrent worsening of insulin sensitivity a...

Duplications of the dosage sensitive sex locus Xp21.2 have been associated with 46,XY gonadal dysgenesis (GD) for nearly 25 years. In the past, duplications have always included the NR0B1 (nuclear receptor subfamily 0 group B, member 1, also known as DAX1) gene, a known antagonist of SF1 (Steroidogenic Factor 1) dependent SOX9 (SRY Box 9) activation and the GD was attributed to its "double gene dose". However, recent findings have questioned the neces...