ESPE Abstracts

Background: Hyperinsulinemic hypoglycemia (HH) is a consequence of unregulated insulin secretion by pancreatic β-cells. Congenital HH is caused by mutations in genes involved in regulation of insulin secretion (ABCC8, KCNJ11, GLUD1, CGK, HADH, SLC16A1, HNF4A and UCP2). Severe forms of congenital HH are caused by inactivating mutations in ABCC8 and KCNJ11, which encode the two components of th...

Background: Autoimmune diseases (AIDs) have familial aggregation and frequently share a common genetic background, but few studies have evaluated autoimmune clusters in children with AIDs and their families.Objective and hypotheses: To identify clusters of AIDs in children and their first-degree relatives.Method: A cross-sectional study was performed in subjects with an AID of pediatric onset (<18 years) recruited at Pediatric ...

Background: NSIAD is a rare genetic cause of hyponatremia, due to activating mutations in AVPR2 gene, encoding the Arginine Vasopressin Receptor Type 2, and located on Xq28. Of the fewer than 30 reported cases, most have been managed with fluid restriction and urea.Objective and hypotheses: Illustration of the presentation of a family with this genetic abnormality and approach to management.Method: The clinical, biochemical and gen...

Background: Nicotinamide nucleotide transhydrogenase (NNT) gene mutations have been recently shown to cause familial glucocorticoid deficiency (FGD), by decreasing reactive oxygen species (ROS) detoxification in adrenocortical cells. Affected infants present within the first few months with isolated glucocorticoid deficiency.Objective and Hypotheses: To study the genetic etiology of four cases presenting uniquely with neonatal addisonian crisis (both min...

Background: The rise of TG in patients with ketoacidosis is connected with the impairment of lipoprotein lipase activity – the enzyme strictly dependent on insulin.Objective and hypotheses: The authors present a case report of 2.5 years old boy in whom diabetes manifestation was connected with severe metabolic disorders: ketoacidosis and extreme hyperlipidaemia.Method: The child without any significant medical history, admitte...

Background: Apparent mineralocorticoid excess (AME) is a rare congenital autosomal recessive disorder resulting from mutations in the HSD11B2 gene, which encodes the kidney isozyme of 11-β-hydroxysteroid dehydrogenase type 2, inactivating circulating cortisol to the less-active metabolite cortisone. Less than 100 cases of AME have been reported in the literature so far. Affected individuals have elevated renal concentrations of cortisol, which can cross-react and activate...

Background: 3β-Hydroxysteroiddehydrogenase (3β-HSD) is a key enzyme in steroidogenesis, responsible for the conversion of Δ5- to Δ4-steroids. Deficiency in 3β-HSD results in congenital adrenal hyperplasia (CAH). The molecular etiology of 3β-HSD deficiency lies in a defect in HSD3B2 gene.Clinical case: A healthy newborn girl was admitted on day of life (DOL) 8 due to increased 17-OH-progesterone (17OHP) in newborn sc...

Background: In autoimmune thyroiditis type Hashimoto the key role in thyrocytes destruction plays the spontaneous cytotoxic activity of T cells, and antibodies dependent mechanisms are of a less value. A spontaneous cytotoxicity is associated with the number and degree of activity of NK cells. An important role in this process plays perforin contributed in permabilization of target cells.Objective and hypotheses: The aim of the study was to evaluate the ...

Background: Anorexia nervosa (AN) is associated with a number of endocrine abnormalities including a low serum free thyroxine level. Hypothyroidism in AN is a recognised condition which is associated with a low normal free thyroxine and triiodothyronine levels (FT4, FT3) with an elevated reverse T3 (rT3). Serum TSH levels are normal or slightly reduced, suggesting a hypothalamic origin to the suppressed thyroid function which is norm...

Background: Fulminant type 1 diabetes (FT1D) is presented as a severe diabetes subtype among adults, however, we have no idea whether it’s worth being taken seriously among children and adolescents.Objective and hypotheses: We aim to clarify the clinical significance of the subtype. It’s supposed that we may needn’t pay special attention to the subtype.Method: Case–control study design. Data from hospitalized al...