ESPE Abstracts

Background: The post-authorisation registry, European Increlex® (mecasermin (rDNA origin) injection) Growth European Increlex Growth Forum Database (EU-IGFD), initiated in December 2008, collects safety and efficacy data in children receiving Increlex® for growth failure. Hypoglycaemia has been reported as a common adverse event (AE) during any IGF1 replacement therapy in randomised clinical trials, and is therefore of interest in real-life sett...

Introduction: X-linked hypophosphataemic rickets (XLH), due to mutations in the PHEX (Phosphate-regulating Endopeptidase homolog; X-linked) gene, causes reduced bone and dentin mineralisation and decreased renal phosphate reabsorption. Mosaic PHEX mutations are reported only in a few case reports.We report three male cases, with mosaic pathogenic PHEX variants, showing importance of considering this in the diagnosis of XLH.Case 1 pre...

Abnormal phenotypes in patients with ring chromosome X can be ascribed to failed or partial X inactivation due to loss of XIST on Xq13. We describe a mother and 1 daughter with the same mosaic karyotype, and another daughter with 45, X. KZ, 12 years old and recently moved from Poland, was investigated for short stature (Ht SDS -2.1), her mother was 142.9 cm, father 176.1cm. Both were healthy and not dysmorphic. Birth weight at 37 weeks was 2.63kg (20th centile Polis...

Introduction: The diagnosis of GHD requires the coexistence of anamnestic, auxological and laboratory data. The latter are burdened by the poor accuracy and adverse effects of the stimulation tests. A recent european audit (Horm Res Paediatr 2019;92(3): 150-156) on GH diagnostic reported as preferred tests in Italy Insulin tolerance test (ITT), glucagon, clonidine, arginine and Arg-GHRH. We conducted a survey to explore which of them are most used in It...

The most common hyperthyroidism in children is Graves' disease. The other rare cause of hyperthyroidism is activating mutation in receptor TSHR in thyroid gland.We would like to introduce a case of familial hyperthyroidism with a novel mutation M453V in the TSHR in three membersActually 11-year-old boy is a patient in outpatient clinic for first days after birth. During gestation his mother was treated with thyreostatic drugs b...

Background: Many organs of human body are attacked by autoimmune processes and countless number of genes are involved in their pathogenesis. Diabetes mellitus type 1 (T1DM) attaching pancreas is a common autoimmune disease in childhood. Among autoimmune thyroid diseases (AITD) we can distinguish less frequent in children population- Graves’ disease (GD). Thyroid stimulating hormone receptor (TSHR) gene encodes membrane protein responsible for thyroid metabolism. Interfero...

Background: Severe GH deficiency (GHD) is associated with significant body composition abnormalities. However there is no data assessing initial body composition parameters in the children with partial GHD.Objective and hypotheses: Study objective was initial body composition assessment in the short stature children diagnosed for GHD.Method: 54 consecutively diagnosed for GHD short statured children (40 boys) in the mean age 10.83&...

Background: Congenital hyperinsulinism in infancy (CHI) is a neonatal disorder of uncontrolled insulin release leading to profound hypoglycaemia. In addition to defects in pancreatic β-cell function, we have recently demonstrated that the CHI pancreas is highly proliferative, with rates of proliferation up to 14-fold higher than in age-matched controls.Objective and hypotheses: As patients require pancreatectomy to alleviate hypoglycaemia, our aim w...

Background: Central precocious puberty (CPP) results from activation of the hypothalamic-pituitary-gonadal axis before the age of 8 years in girls and 9 years in boys. The molecular basis of the maturation of this axis is still poorly understood. The MRKN3 gene located in the Prader-Willi syndrome critical region (chromosome 15q11–q13), inhibit factors stimulating pulsative. GnRH secretion. In 2013 inactivating mutations in the MRKN3 gene were discovered...

Background: Lipodystrophy syndromes comprise a large group of extremely rare diseases characterized by loss or dysfunction of adipose tissue. Due to their extreme rarity and variability, research in the field of lipodystrophy is difficult for single centres warranting larger co-operations.Methods: Therefore, the European Consortium of Lipodystrophies decided to found an international registry in 2016. This registry is ba...