ESPE Abstracts

Background: Nephrogenic diabetes insipidus (NDI) is caused by inability of renal collecting duct cells to respond to arginine vassopresin (AVP)/antidiurethic hormone (ADH).Objective and hypotheses: The majority of patients (about 90%) have type 1, X-linked recessive form, of NDI caused by mutation in gene encoding the vassopresin V2 receptor. Type 2, autosomal NDI, have the rest 10% of patients. This type is caused by the aquaporin-2 water channel (AQP2)...

Background: Beckwith Wiedemann syndrome (BWS) is an overgrowth disorder with vari-able phenotype (hemihypertrophy, macroglossia, visceromegaly, malformations, and hypo-glycaemia in 30–50%) and predisposition for tumors, during the second part of pregnancy and first few years of life.Objective and hypotheses: Molecular characterisation of a patient with BWS was perfor-med to ensure adequate clinical management. This analysis revealed the most common ...

Introduction: Gender incongruence (GI) is a condition where a person's gender identity does not match their assigned sex at birth, and can lead to significant distress and gender dysphoria (GD). In various studies it has been associated with a predisposition to developing pathological eating behaviours, which in turn negatively influence the individual’s metabolic health. In our study we examine selected markers of metabolic condition and assess sur...

Introduction: Gender incongruence (GI) is a condition where a person's gender identity does not match their assigned sex at birth and can lead to significant distress and gender dysphoria (GD). Some studies have shown a higher prevalence of hyperandrogenism (HA) in transboys/transmen than among the cisgender female population and considered its meaning in the context the of gender identity development. Therefore, further studies confirming this observatio...

Background and Aim: Several genetic variants associating with hepatic fat content in adults have been identified in genome-wide association studies. Their effects in children remain unclear. This study aimed to test the effect of genetic variants known to associate with hepatic fat in adults, individually and combined as a genetic risk score (GRS), on cardiometabolic traits, and to investigate the predictive ability of the GRS for hepatic steatosis in children...

A PROP1 homozygous mutation was found in an 8 years old boy who was referred for fatigue, general slowness, dry skin, normal weight and slow growth. His T4 and TSH were low, while tests of pituitary reserve were normal as well as the concentrations of ACTH and cortisol. FSH/LH/T/E were in the pre-pubertal range. TRH test resulted in no increased TSH and T4, confirming the pituitary origin of the defect. MRI of the pituitary hypothalamic region revealed an enlargement of the an...

Background: Thyroid hormones are necessary for normal child development. Hypothyroidism, associated with insufficient amounts of free triiodothyronine and thyroxine, may not only cause poor growth rate, but also results in impaired central nervous system development. In Poland, newborn screening for congenital primary hypothyroidism, the incidence of which is reported to be 1:2500- 1:4000 births, has been performed for many years. Secondary hypothyroidism, cau...

Pathway involving insulin-like growth factor 1 (IGF-1) plays significant role in growth and development. Crucial role of IGF-1 was discovered inter alia through studies involving deficient patients with short stature, including SPIGFD individuals. Noteworthy, despite disturbances in proper growth, elevated values for selected stem cell populations were found in IGF-1 deficient patients. Therefore, here we focused on investigating role of these cells - very small embryonic-like...

Introduction: The genomic disorders caused by rearrangements in region 5q35, including the NSD1 (nuclear receptor SET domain containing protein-1) gene have various phenotypes depending on presence of deletions, duplications or inversions. Patients carrying microduplication have microcephaly, short stature, and mild to moderate intellectual delay or learning disability.Patients and methods: A six-year-old boy wa...

Graves’ disease (GD) is hyperthyroidism associated with organ-specific autoimmune inflammation. GD occurs more frequently in adults than in children, however, pediatric patients are a therapeutic challenge due to cycles of remissions and relapses requiring constant monitoring at every stage of treatment administered. Dendritic cells (DCs) are considered a link between innate and adaptive immunity. DCs as antigen-presenting cells (APCs) are involved in antigen presentatio...