ESPE Abstracts

Background: One of the limiting factors in adherence to GH therapy, is satisfaction with the administration device used.Objective and hypotheses: With the emergence of a new biosmiliar GH (BGH) administration device, we will assess the simplicity, ease of use, management and pain perceived by the patients.Method: Prospective through survey caregivers and children treated with BGH at least for 6 months. Signed informed consent was r...

Background: Maturity Onset Diabetes of the Young (MODY) constitutes a genetically and clinically heterogeneous type of Monogenic Diabetes (MD). It is characterized by early onset, autosomal dominant inheritance and a defect in β cell insulin secretion. To date 14 different MODY subtypes have been reported each one with a distinct genetic aetiology. However four are the most common subtypes, namely MODY 1 (HNF4A), MODY2 (GCK), MODY3 (HNF1A), MODY...

Background: Disorders of sex development (DSDs) refer to congenital disorders where the chromosomal, gonadal or anatomical sex is atypical. Patients typically present neonatally with ambiguous genitalia preventing immediate gender assignment or during adolescence where atypical sexual development becomes apparent. Genetic testing is key in establishing a diagnosis, allowing for personalised patient management and may significantly reduce the period of uncertainty for families ...

Wilson disease (WD) is a relatively common genetic hepatic disease in pediatric area and is characterized by excessive copper accumulation, predominantly in the liver and brain. It is an autosomal recessive disease caused by an ATP7B mutation that causes brain degeneration and is potentially fatal if diagnosed late or untreated. In the early phase of WD, its initial presentation may include mild hepatic involvement that may not be noticable. In obese patients, WD coul...

Background: Congenital hypothyroidism is the most common neonatal metabolic disorder and detected at a rate of 1 in 3000 to 4000 live births. Compared to congenital hypothyroidism caused by defects in thyroid development leading to thyroid dysgenesis, thyroid dyshormonogenesis has tendency to be detected at older age and its clinical manifestations are individually different. Thus, to evaluate exact causes and predict clinical course for congenital thyroid dys...

Background: Disorders of sex development (DSD) are classified as a congenital discrepancy between external genitalia, and gonadal and chromosomal sex. Despite extensive laboratory and imaging investigations, the etiology of DSD is unknown in more than 50% of patients. We aimed to evaluate the etiology of DSD using whole exome sequencing (WES) technique.Methods: Eleven patients with DSD (ten with 46,XY and one with 46...

Background: Generalized lymphatic anomaly (GLA) is a rare congenital disorder characterized by aggressive proliferation of dilated lymphatic vessels. The etiology of GLA is poorly understood.Objective and hypotheses: To identify the underlying genetic basis for GLA.Method: Exome sequencing (ES) was performed in two families, including a multigenerational family (family-1) with six affected members. RNA-seq was performed on skin bio...

Background: Maturity-onset diabetes of the young (MODY) is a monogenic form of diabetes that accounts for 2–5% of all cases but it is underestimated because it’s often misdiagnosed as T1D or T2D whose symptoms are often overlapping. It is a phenotypically and genetically heterogeneous disorder characterised by autosomal dominant inheritance, a young age of onset and pancreatic β-cell dysfunction.Objective and hypotheses: Actually in about ...

Background: Dyshormonogenic hypothyroidism is classically a monogenic disease with recessive inheritance. Thyroid dysgenesis showed a multigenic origin in a mouse model of double-heterozygous deletions of Nkx2.1/Pax8 transcription factor genes, suggesting a possible polygenic nature of certain cases of human hypothyroidism.Objective and Hypotheses: To investigate genetic traits of polygenic involvement in dyshormonogenic hypothyroidism,...

Background: Skeletal dysplasias (SD) are a heterogeneous group of heritable conditions with generalized bone and cartilage impairment caused by pathogenic variants in genes primarily affecting skeletogenesis and/or bone homeostasis. In this study, we conducted a next-generation sequencing (NGS) in patients with a suspected SD to reveal the underlying etiologies of skeletal dysplasia.Methods: Thirty-four pediatric patient...