ESPE Abstracts

Background: The molecular genetics of isolated hypogonadotropic hypogonadism (IHH) has been a subject of interest and recent discoveries. Multiple genetic variants with x-linked and autosomal inheritance are involved in the regulation of the hypothalamic pituitary gonadal axis.Objective and hypotheses: We undertook an extensive genetic evaluation to elucidate a possible genetic aetiology in two brothers with clinical and biochemical evidence of IHH. We h...

Background: Testicular adrenal rest tumor (TART) is one of the main causes of decreased fertility in men with congenital adrenal hyperplasia (CAH). TART may occurs in childhood but there is no currently identified factors influencing the development of this condition.Objective and hypotheses: To study the role of glucocorticoid and mineralocorticoid undertreatment in the TART development in children and adolescents with CAH, 21-hydroxylase deficiency.</p...

Background: DAX-1 mutation is a rare genetic cause of adrenal insufficiency also causing hypogonadotropic hypogonadism.Case presentation: The patient was born to a G1P1 mother. At the age of 1 month he developed acidosis, hyponatremia, hyperkalemia, diagnosed with congenital adrenal hyperplasia and started on hydrocortisone and fludrocortisone. No CYP 21 mutation was identified, fludrocortisone was continued for presumed hypoaldosteronism, hydrocortisone...

Background: Genes in the HLA region confer about 50% of the genetic risk of type 1 diabetes (T1DM). More than 40 different genes give a minor contribution to T1DM risk, some of them are related to the immune function.Case presentation: A girl was referred at the age of 9 months with severe ketoacidosis in T1DM at onset. Anti-insulin autoantibodies were positive. She was the only daughter of unrelated Caucasian parents, born at term by vaginal delivery. T...

Background: The pseudohypoparathyroidism (PHP) encompasses a heterogeneous group of clinical entities caused by a defect in the peripheral action of parathyroid hormone (PTH). Biochemically it manifests itself with hypocalcemia, hyperphosphatemia and elevated PTH. PHP-Ia is the most frequent and multiple hormone resistance, associated signs of Albright hereditary osteodisfrofia (OHA) and mutations in the gene encoding GNAS Gsa protein.Case presentation: ...

Background: The Fanconi syndrome (FS) and GH deficiency (GHD) is a rare association. The FS is a dysfunction in the proximal tubule that can be idiopathic or primary. This dysfunction leads to renal loss of bicarbonate, phosphate, glucose, potassium and amino acids. One of the clinical feature is a delay in body growth. The correction of acidosis can protect the loss of growth. According to the prevalence of idiopathic GHD, it would be expected that 1 in 4 000 patients and, wi...

Background: Wolf–Hirschhorn syndrome (WHS) is caused by variably-sized deletion of chromosome 4 involving 4p16 whose typical craniofacial features are ‘Greek warrior helmet appearance’ of the nose, microcephaly and prominent grabella. Almost all patients show mental retardation and growth delay.Case presentation: We report on a patient carrying a 4p16 deletion and GH deficiency treated with recombinant human GH (rhGH). The patient is male,...

Background: GH deficiency (GHD) occurs due to different aetiologies, morphological abnormalities in pituitary, or mutations leading the individual to lose the genetic growth potential. The pituitary dysfunction can be as GHD alone or associated with other hormones deficiencies. Patients with abnormalities in pituitary may present a greater height loss than others and couldn’t reach the target height (TH) according to final height (FH).Objectives: To...

Background: Children with congenital heart disease (CHD) are predisposed to growth failure, due to the decreased intake of nutrients and also due to the increased energy requirements. Growth failure represents a frequent cause of increase of both morbidity and mortality in children with CHD.Objective and hypotheses: Assessment of physical development in children with CHD and identification of significant factors that influence z scores.<p class="abst...

Background: In congenital hyperinsulinism (CHI) there is dysregulation of insulin secretion that leads to hypoglycaemia. It is possible that other pancreatic hormones are also dysregulated in CHI.Objectives: i) To verify the utility of Luminex Multiplex to determine pancreatic hormones in the paediatric age. ii) To investigate the response of pancreatic hormones (insulin, C-peptide, glucagon, amylin and PP) to a fast in children with CHI due to different...