ESPE Abstracts

Introduction: Pituitary stalk interruption syndrome (PSIS) is a rare congenital disorder characterized by absent, thin, or interrupted pituitary stalk, absent or ectopic neurohypophysis, and hypoplasia or aplasia of the adenohypophysis. It often accompanies midline abnormalities and diverse endocrine dysfunction, with its etiology largely unknown. Recent reports have linked mutations in the ROBO1 gene to PSIS.Aim: To des...

Introduction: Congenital disorders of glycosylation (CDG) are metabolic conditions resulting from defects in the glycosylation pathway. In addition to the primary neurological symptoms, other possible clinical findings may include distinctive coagulation abnormalities, as well as hepatic, gastrointestinal and, less frequently, hormonal disorders. The ALG1 gene defect is the third most prevalent CDG and compromises β-1,4 mannosyltransferase activity, which...

Introduction: Hereditary causes of rickets often take longer to be diagnosed because they are not very frequent. 1α-hydroxylase alteration is the most frequent vitamin D-dependent rickets. A delay in the treatment associated to a late diagnosis generates an abrupt parathormone deficiency. When initiating treatment, these patients have a risk of hungry bone syndrome.Case: 2-year-8-month-old male patient, with a history of psychomotor...

Background: Mauriac Syndrome (MS) is currently an extremely rare complication in type 1 diabetes mellitus (DM1). It is characterized by the triad: poor metabolic control, dwarfism and hepatomegaly. Other findings are elevated transaminases, dyslipidemia, cushingoid features and delayed puberty.Case: Male patient with DM1 since 5 years age. Coinciding with a family breakdown, from the age of 7 his metabolic control deteriorated significan...

Background: PAPP-A2 (pregnancy-associated plasma protein A2) deficiency, caused by homozygous mutations in the PAPP-A2 gene results in a novel syndrome of significant growth failure. PAPP-A2 cleaves IGF binding proteins 3 and 5, thereby freeing IGF-I from its ternary complex and allowing it to become biologically active. We recently reported the first two families with PAPP-A2 mutations. Response to recombinant human IGF-I (rhIGF-1) in these patients is unknown.<p class="a...

Background: Familial isolated growth hormone deficiency (IGHD) type II is autosomal dominantly inherited and caused by splice-site mutations and nucleotide substitutions in the GH1 gene. The missense mutation R183H is a well-described genetic variant that causes familial IGHD type II. Individuals with this mutation have releasable GH stores, but GH secretion is severely reduced resulting in short stature.Objective and hypotheses: This study aimed to repo...

Background: GH treatment is proven to increase adult final height in some pathology and first year response is assumed as an index of treatment’s effectiveness.Objective and hypotheses: Identify the prevalence of each indication in children treated with GH in our hospital and evaluate the first year response to treatment.Method: We retrospectively analysed the files of 30 patients followed for short stature and on GH treatment...

Introduction: Pediatric obesity is an important public health problem. Exogenous obesity represents most cases; in some children, obesity is attributable to endocrine or genetic disorders. Genetic etiology should be considered in children with dysmorphic features, global developmental delay, early onset severe obesity (before 5 years), hyperphagia or severe obesity family history. Regardless of the etiology, treatment must begin with long-term lifestyle change...

Introduction: Congenital Adrenal Hyperplasia (CAH) is a group of genetic diseases characterized by impaired cortisol synthesis. 95% of CAH cases result from mutation in the CYP21A2 gene encoding 21-hydroxilase. TNX-B gene partially overlaps CYP21A2 and encodes a matrix protein called Tenascin-X (TNX). Complete tenascin deficiency causes Enlers-Danlos syndrome (EDS). A variant called CAH-X, has recently been described, resulting from CYP21...

Introduction: CHARGE syndrome is a rare constellation of congenital malformations caused by mutations in CHD7 gene. The acronym stands for coloboma, heart defect, choanal atresia, retarded growth and development, genital hypoplasia, ear abnormalities, and/or hearing loss. Endocrine disorders associated with this syndrome include hypogonadotropic hypogonadism, ...