ESPE Abstracts

Iodine is an essential dietary micronutrient required for thyroid hormone synthesis and neurodevelopment in utero. Evidence of iodine insufficiency among British women is of particular concern in the context of pregnancy. The Mothers and Babies at Yorkhill (MABY) study is a Glasgow-based longitudinal cohort study assessing the iodine and thyroid status of pregnant women and their offspring.Pregnant women were recruited from antenatal clinics (20...

Background: In humans, activating mutations in the PRKAR1A gene cause acrodysostosis1 (ACRDYS1). Two striking features of this rare developmental and skeletal disorder are renal resistance to PTH and chondrodysplasia resulting from the constitutive inhibition of PTHR1/Gsa/AC/cAMP/PKA signaling caused by the PRKAR1A mutations.Objective and hypotheses: Document the consequences of the germline expression of a PRKAR1A mutation causing a dominant repression ...

Introduction: Prompt diagnosis in Prader-Willi syndrome (PWS) is important for counselling the family and thus pre-empt the hyperphagic phase of the condition.Objectives: To determine the key diagnostic features of PWS during the perinatal period and hence recommend strategies to ensure early diagnosis.Study design: Retrospective case note review with prospective questionnaire survey of birth details for the affected child and heal...

Background: 14½ year old girl presented with increased skin pigmentation, weakness of limbs and walking difficulty and delayed puberty.Objective and hypotheses: To evaluate the girl for the aetiology of hyperpigmentation, neuromuscular weakness and delayed development of secondary sexual characters.Method: The girl was evaluated by neurologist and found to have development delay, sensory and motor neuropathy, ataxia, amyotroph...

Background: Children born small for gestational age (SGA) exhibit wide variations in the activity of growth hormone (GH)/insulin–like growth factor–I (IGF-I) axis and this heterogeneity may result in supra physiological concentrations of IGF-I during GH treatment. The long-term effects of elevated IGF-I levels has been a matter of concern. We explored the variations in total IGF-I and bioactive IGF-I and the associations with growth and glucose metab...

Background: Bardet-Biedl syndrome (BBS) causes early-onset extreme obesity and hyperphagia that is hypothesized to arise from leptin receptor dysfunction. Setmelanotide, a melanocortin-4 receptor (MC4R) peptide agonist, has been shown to induce weight loss in individuals affected by other rare genetic obesity disorders resulting from leptin-melanocortin pathway dysfunction upstream of MC4R.Objective: Report preliminary data on body weight, hunger scores,...

Aims: To assess trend in the prevalence of severe obesity in a national population-based sample of adolescents and to evaluate the association of severe obesity with major cardio-metabolic morbidities.Methods: Prevalence and severity of obesity was determined among 373,226 Israeli adolescents with abnormal BMI (≥85th percentile for age and sex) examined in an obligatory health assessment at mean age 17.3±0.5 years between 1967 and 2...

Background: Turner Syndrome (TS) with a 45,X phenotype is generally more severe than TS with mosaicism, but the potential role of the degree of mosaicism in modulating TS phenotype has never been investigated. We assessed the impact of various degrees of 45,X/ 46,XX mosaicism on phenotypic features in a cohort of TS patients.Method: We analysed a cohort of TS with 45,X/ 46,XX mosaicism (percentage mosaicism from peripheral blood lymphocytes, known in <em...

Background: Klinefelter syndrome (KFS) is a sex chromosomal disorder characterised by hypogonadism, progressive testicular failure, gynaecomastia and learning difficulties. Genital anomalies are rarely observed in KFS. Androgen insensitivity has been previously postulated, but not proven to cause genital ambiguity in KFS. Androgen receptor (AR) gene defects are reported in AIS, but have not been reported in children with KFS with mild hypospadias. We describe a novel ...

Background: An increase in the incidence of congenital hypothyroidism (CH) with a normally located gland has been reported worldwide. Affected individuals display transient or permanent CH during follow-up in childhood. We aimed to determine the prevalence of transient CH and to assess the possibility of distinguishing between transient and permanent CH in early infancy.Methods: This observational cohort study included all patients identified by systemat...