ESPE Abstracts

Background: The mechanisms responsible for inappropriate insulin release from β-cells in congenital hyperinsulinism in infancy (CHI) have largely focused upon defects in KATP channels. Little is known about insulin biogenesis, the profiles of insulin in insulin-containing secretory granules or whether the impact of KATP channel defects is the same in diffuse- and focal disease.Objective and hypotheses: To define the ultrastruct...

Background: α-klotho is a transmembrane protein which can be cleaved and act as a circulating hormone. Since low α-klotho levels were found in organic GH deficiency (GHD) and high levels in acromegaly, an interaction between α-klotho, GH and linear growth has been suggested.Objective and hypotheses: We investigated the role of α-klotho protein as a reliable marker of GH secretion in short children and the factors influencing its secre...

Background: Congenital hyperinsulinism of infancy (CHI) mainly arises from loss-of-function mutations in the KATP channel genes. As a consequence, insulin release is uncontrolled and causes persistent or recurrent episodes of hypoglycaemia in neonates. In patients with diffuse-CHI (CHI-D) increased rates of cell proliferation has been reported, but the causes of proliferation are unknown.Objective/Hypotheses: To assess the extent of cell proliferation an...

Background: The diagnosis of GH deficiency (GHD) in children and adolescents is classically established when GH concentrations fail to reach an arbitrary cut-off level (usually 7–10 μg/l) after at least two provocative tests (PT).Objective and hypotheses: Aim of the study was to define optimal GH cut-offs to different PT in children and adolescent with short stature.Method: This was a retrospective study in 437 subjects w...

Background: Diabetes is the third commonest chronic disease of childhood. When a child or an adolescent is diagnosed with type 1 diabetes (T1D), adaptation to a new life is usually a challenge for the whole family. There are specific challenges posed by T1D on the affected children, and their families, at different developmental age groups. The correlation between HbA1c and age specific psychological challenges, to our knowledge, has not been previously explored in the Middle ...

Background: Triple A syndrome (AAAS, OMIM#231550) is a very rare inherited disease characterized by the association of chronic adrenal insufficiency, achalasia, alacrima and central and peripheral neurological disorders. It is caused by mutations in the AAAS gene which encodes the nuclear pore complex scaffolding protein ALADIN. The relative prevalence and genotype of AAAS in the Maghreb countries has not been ascertained.Objective and hypotheses: To est...

Background: Congenital adrenal hyperplasia (CAH), resulting from mutations in CYP11B1 (gene encoding 11β-hydroxylase), is a rare autosomal recessive disorder due to an impairment of the last steroidogenesis step. Consequences are a decreased cortisol secretion, elevated plasma levels of ACTH, and accumulation of steroid precursors responsible of hyperandrogenism and hypertension. It is the second most frequent cause of CAH after 21-Hydroxylase de...

In the history of biosynthetic GH, first prediction models on long term outcome of therapy were based on large multinational cohorts of various growth disorders and have concentrated on GH dose. In this study we analyzed the 1st year and final height (FH) data in a large single center cohort (center of expertise for rare growth disorders) and compared patient outcome and predictions in GHD and SGA. Our aim was to predict treatment outcome using simple previously suggested para...

Background: Advances in the treatment of childhood and adolescence cancer treatment have led to significant increase in survival rate. Current 5-survival rate of childhood cancer is nearly 80%. Hematopoietic stem cell transplant (HSCT) is treatment of choice in many clinical conditions including malignant and non-malignant hematological diseases, solid tumors and immunodeficiency diseases. Children receiving HSCT are prepared with different pre-transplant cond...

Key words: hot nodule, pediatrics, papillary thyroid carcinoma A nodule over 1 centimeter observed in pediatrics need further evaluation. Not having ultrasound changes during monitoring does not mean being benign. Moreover, normal FNA does not rule out a malignancy and it is necessary to repeat the test every 3-6 months. The case was a 15-year-old girl with a 23 mm fixed nodule on ultrasound and normal FNA. She developed hyperthyroidism after two years; a hot ...