ESPE Abstracts

Introduction: Vosoritide increases growth in children with achondroplasia aged 5–18 years (Savarirayan et al, Genet Med, 2021). We recently reported results from a phase 2, randomized, double-blind, placebo-controlled study (111-206) in young children with achondroplasia aged 3 months–5 years Here we present results from an open-label extension study (111-208) spanning up to 4 years of treatment in the children aged 2-5 years at study star...

Background: Medium chain acyl-CoA dehydrogenase deficiency (MCADD) is an autosomal recessive fatty acid β-oxidation defect. The enzyme is important in the breakdown of medium chain fats into acetyl-CoA to produce ketones, alternative energy source when glucose hepatic glycogen stores become depleted during prolonged fasting. In MCADD, during periods of fasting/ acute illness, there are insufficient ketones to compensate for the glucose energy deficit, ...

Background: Despite extensive evidence in adults that lifestyle modification, including a healthy diet, may prevent the onset of type 2 diabetes, studies examining the impact of chronic dietary exposures on insulin dynamics in at-risk children are lacking.Objective and hypotheses: To assess how dietary intake predicts insulin sensitivity and secretion over a 2-year period in children with a family history of obesity.Method: Data st...

Background: Physical activity is beneficial to lipid profiles, however the association between sedentary behaviours and paediatric dyslipidaemia remains controversial. Understanding these associations is critical given that youth are increasingly engaging in sedentary pursuits, and are sleeping, on average, 1 h less than children were 20 years ago.Objective and hypotheses: To investigate whether various forms of sedentary behavior/sleep predict lipid pro...

Background: Neonatal diabetes (NDM) is defined as diabetes developing before 6 months of age, affecting one in 100 000 live births. Permanent NDM is diagnosed in the first 6 months of life with no remission. The majority have a mutation in the ATP-sensitive potassium (KATP) channel (KCNJ11 in 31%, ABCC8 in 13%). Autosomal dominant and recessive forms are described. The majority of patients with NDM caused by KATP mutations respond to sulphonylureas.<p...

Context: Monogenic obesity (MO) is a rare form of obesity due to pathogenic variants in genes implicated in the leptin-melanocortin signaling pathway and accounts for around 5% of severe early-onset obesity. Mutations in the MC4R and Leptin genes are the commonest causes of MO. Determining the genetic causes has important clinical benefits as novel therapeutic interventions were developed for some forms of MO.Objective:<...

Background: Bi-allelic GHR mutations are classically responsible for Laron syndrome, a severe growth hormone (GH) resistance syndrome. A few GHR missense mutations have also been implicated in mild GH resistance or idiopathic short stature. IGFALS mutations are responsible for recessive or semi-dominant short stature with normal GH provocative test contrasting with extremely low IGF-I levels.Objective and hypotheses: To assess the contribution of GHR and...

Initially discovered in the 1970s, the C21 steroidal acids α-cortolic acid, β-cortolic acid, α-cortolonic acid and β-cortolonic acid present the terminal oxidative products of cortisol metabolism. Undergoing renal elimination, these cortoic acids have been assumed to represent up to 25% of total urinary cortisol metabolites. However, their analysis has been difficult, only few data has been published in adults, and this class of steroids has beco...

Background: The MAMLD1 gene (Xp28) is thought to cause disorder of sex development (DSD) in 46, XY patients, mostly presenting with hypospadias, and, recently, also gonadal dysgenesis. However, there is some controversy about the role of MAMLD1 in sex development because i) some MAMLD1 variants are also detected in normal individuals, ii) others are not present in all affected DSD individuals of the same family; iii) several MAMLD1 mutations...

Background: Childhood obesity is still increasing worldwide. Early recognition of overweight or obesity in children by healthcare professionals is of utmost importance, allowing interventions to start at a young age.Objective and hypotheses: We studied whether healthcare professionals adequately perceive preschool children’s overweight and whether this is influenced by their own BMI.Method: Healthcare professionals received a ...