ESPE Abstracts

Objective: Most children with short stature remain without an etiologic diagnosis after extensive clinical and laboratory evaluation and are classified as idiopathic short stature (ISS). This study aimed to determine the diagnostic yield of a multigene gene analysis in children classified as ISS.Design and Methods: We selected 102 children with ISS and performed the genetic analysis as part of the initial investigation. ...

GHD diagnosis in neonates and infants is a challenge owing to the fact that GH pharmacological stimulation tests (GHST) are not approved at this age. In a retrospective study, we found that a random GH<6.5 µg/L confirmed GHD diagnosis in neonates with clinical suspicion of GHD with high diagnostic accuracy (1). The accuracy of GH and its surrogates of action have not been set for infants with current standardized immunoassays.Objective</...

Introduction: Tuberous sclerosis complex (TSC) is an autosomal dominant condition caused by a loss-of-function mutation in tumor suppressor genes TSC1/TSC2 which are involved in the inhibition of mTOR signaling implicated in cell proliferation. Major clinical features includes cardiac rhabdomyomas, renal cysts, epilepsy associated to cerebral dysplasia evidenced by cortical tubers and skin manifestation as: angiofibromas, fibrous plaques and the Shagreen patch...

Background: Protein intake is crucial for growth. Many inherited metabolic diseases (IMD) require a strict controlled protein diet.Aim: to evaluate growth, pubertal status and body composition in IMD requiring a strict controlled protein diet.Patients & Méthods: Longitudinal follow up cohort study. We recorded data before 4years (early childhood, n=189); betwe...

Introduction: Studies about pubertal onset and the menarcheal age in girls with the antecedent of idiopathic premature adrenarche (IPA) are limited and with discordant results. For these reasons, we created a cohort of girls with the diagnosis of IPA. The objectives of our study were: a) to know the age of pubertal onset; b) to evaluate menarcheal age; c) to determine the growth rate in the first two years after the IPA diagnosis; d) to collect adult height da...

Introduction: Childhood obesity means a Public Health problem. It is related to chronic diseases in adults, a decrease in quality of life, and an increase in social and sanitary costs. In Spain, the National Health Service (ENSE 2017) stood the prevalence of overweight in toddler between 2 to 7 years old, in 18,26% and obesity in 10,30%, no differences between sex. In 2015 the prevalence of overweight and obesity in childhood are 21, 3 % and 6, 2 &...

Neonatal screening tests are used for the screening of genetic, endocrine and metabolic diseases. Preterm newborns have a higher false-positive and false-negative results in neonatal screening. The objective of this study was to estimate the prevalence of false-positive and false-negative results in the neonatal screening tests for phenylketonuria, congenital hypothyroidism, biotinidase deficiency and congenital adrenal hyperplasia (CAH) in preterm newborns in Curitiba, to ana...

Growth hormone (GH) is commonly used during childhood to treat short stature in Silver-Russell syndrome (SRS), but final height and long-term body mass index (BMI) data are limited.Objective: To evaluate height and BMI in older individuals with molecularly confirmed SRS and compare those previously treated with GH to those untreated.Methods: Growth data on individuals aged ≥13 years with SRS were evaluated from UK, French and...

Background: A portion of 160 kb on Xp21.2 is defined as dosage sensitive sex reversal, including NR0B1, which is considered the most likely candidate gene involved in XY gonadal dysgenesis if overexpressed. The excess of NR0B1 gene product seems to disturb testicular development by down regulating NR5A1, WT1, and SOX9. Xp duplication causes insufficient SRY expression leading to testis development failure. However, NR0B1 si...

Background: Homozygous natriuretic peptide receptor-2 (NPR2) mutations cause acromesomelic dysplasia, type Maroteaux, a skeletal dysplasia with extreme disproportionate short stature and recently, heterozygous NPR2 mutations have been identified also in patients with idiopathic short stature (ISS, 2–6%). SHOX mutations are found in ~2–5% of ISS cases and ~70% of Léri-Weill dyschondrosteosis (LWD) cases, characterized by disproportionat...