ESPE Abstracts

Background: Calculation of a urinary steroid metabolite ratio (uSMR) may be a useful method of improving diagnostic yield when investigating disorders of steroid hormone synthesis. Our aim was to investigate the range of uSMR in children with suspected disorders of steroid hormone synthesis.Methods: Ten ratios were calculated on steroid metabolite data analysed by GC-MS in urine samples collected between 2008 and 2010 from 94 children who were undergoing...

Background: MEHMO (microcephaly, epilepsy, hypogenitalism, mental retardation, obesity) is a rare disorder with X-linked inheritance. Only three families with this disorder were described previously, with the linkage to a region on X chromosome. No specific gene has been identified so far.Aims and objectives: The aim was to identify the genetic etiology in two unrelated Slovak male probands (4.5 and 1.5 years old respectively) with the clinical diagnosis...

Introduction: The ideal TSH filter value (TSHf) in the neonatal screening tests for Congenital hypothyroidism (CH) is worldwide controversial. Local cutoff point of TSHf was 9.0 mIU/L until recently. OBJECTIVE: To evaluate the clinical and laboratory characteristics of newborns with CH (confirmatory serum TSH > 10 mIU/L) after a lower TSH cutoff. METHODS: Cross-sectional study using data from Neonatal Screening Reference Center of State Rio Grande do Sul, ...

Congenital adrenal hyperplasia is an autosomal recessive inborn error of metabolism due to impaired activity of one enzyme required for cortisol biosynthesis. Steroid 21-hydroxylase (21OH) deficiency is the cause in more than 90% of the patients. The 21OH is encoded by the CYP21A2 gene located on the chromosome 6 in the region known as the RCCX module. Due to the high homology and tandem-repeat organization of the RCCX module, this region of the genome is subjected to...

Background: A good metabolic control in preschool children with type 1 diabetes (DM1) is particularly challenging, being easier and safer with continuous subcutaneous insulin infusion (CSII) compared with multiple daily injections (MDI).Objective and hypotheses: Evaluate and compare metabolic control of preschool children with DM1, before and 9 months after CSII therapy.Method: Analytical retrospective study of children under the a...

Background: Functional insulin therapy allows precise insulin adjustments to achieve normoglycaemia.Objective and hypotheses: To assess metabolic control (A1c) and lipid profile in children and adolescents with DM1 in a 3-year period under multiple daily injections (MDI) since the diagnosis.Method: Retrospective analysis of children and adolescents under functional insulin therapy since the diagnosis of DM1. The variables studied w...

Background: Craniosynostosis, defined as the premature fusion of the cranial sutures, presents many challenges in aetiology. One known form associated to steroid biosynthesis impairment is the Antley-Bixler Syndrome (ABS). ABS-phenotype and normal steroidogenesis have FGFR mutations, whereas those with ambiguous genitalia and altered steroidogenes should be recognized as possibly having P450 oxidoreductase deficiency, with mild do moderate 17 OH progesterone (17HOP) elevation ...

Objectives: Osteogenesis imperfecta (OI) is an extremely heterogeneous connective tissue disorder characterized by low bone mass, which together with altered bone matrix properties leads to skeletal fragility. Due to the wide range of symptoms, the pathophysiology of the OI is not fully understood. Null mutations in SERPINF1, encoding the potent antiangiogenic factor PEDF, cause type VI OI with excessive osteoid formation, abnormal osteoblast-osteocyt...

Background and Aim: A substantial proportion of SGA patients have a syndrome underlying their growth restriction. Most SGA cohorts comprise both syndromic (S-SGA) and non-syndromic patients (nonS-SGA) impeding delineation of the recombinant human growth hormone (rhGH) response. We present a detailed characterization of the Belgian SGA cohort and analyze rhGH response based on adult height (AH).Patients & Methods: Cli...

Background: Reaching a definitive diagnosis in individuals with XY DSD is challenging and the time taken to reach a diagnosis is an important clinical benchmark that has not been sufficiently explored in this group of conditions.Objective: To evaluate the diagnostic process with a focus on the time to diagnosis in children with XY DSD reported via the e-reporting platform (e-REC) of the European Registries for Rare Endoc...