ESPE Abstracts

Background: CYP11A1 encodes the P450 side chain cleavage (scc) enzyme. This protein localises to the mitochondrial inner membrane and catalyses the conversion of cholesterol to pregnenolone which is the first and rate-limiting step in the synthesis of all steroid hormones. P450scc deficiency is a rare disorder that can present as adrenal insufficiency and varying degrees of disorder in sex development (DSD) in 46XY individuals. Typically, this disorde...

Background: Proteins encoded by LEP, LEPR and MC4R genes are principally involved in driving the leptin-melanocortin pathway. Mutations in these genes induce a rare and severe form of monogenic obesity but the long-term evolution of these afflictions is unknown. Here, we carried out a clinical investigation on 132 children with LEP, LEPR and MC4R deficiency from Pakistan to evaluate progression of the disease and its impact on co-mor...

Treatment of short stature in children born small for gestational age (SGA) requires daily growth hormone (GH) injections that can be burdensome for patients and caregivers. Once-weekly somapacitan is a long-acting GH in phase 3 development for replacement therapy in children with GH deficiency. We report the 52-week results of the first phase 2, multinational, randomised, open-label, controlled, dose-finding trial (NCT03878446) investigating efficacy and safety of somapacitan...

Background and Aims: Type 1 diabetes mellitus (T1DM) belongs to the most common chronic diseases affecting children and adolescents. Technological advances have improved metabolic control over the past decades, thereby decreasing the risk of long-term complications. However, only a minority of patients meets the treatment goals of maintaining a glycated hemoglobin (HbA1c) level below 7.5% (58 mmol/mol). Webdia is an application for mobile devices developed by the fath...

Background: Maturity Onset Diabetes of the Young (MODY) is a heterogeneous group of disorders characterized by pancreatic beta-cell dysfunction, and usually referred to monogenic forms of diabetes mellitus to distinguish them from the more common type 1 (T1D) or type 2 diabetes (T2D). Fourteen different MODY genetic subtypes have been identified so far. Making a definite diagnosis is very challenging because of overlapping clinical phenotypes between diabetes subtypes. Neverth...

Background: We recently demonstrated that both ritonavir-boosted lopinavir (LPV/r) and lamivudine (3TC, a nucleoside analogue) given to breastfed infants can reduce the risk of post natal HIV transmission (ANRS 12174 trial; Nagot, Lancet 2016). In another setting we previously showed the occurrence of adrenal dysfunction in newborn perinatally exposed to LPV/r leading to acute adrenal insufficiency in premature babies (Simon, JAMA 2011).Objective and hyp...

Background: Monogenic diabetes is a heterogeneous group of metabolic disorders resulting from defects in single genes. Over 90% of the subjects remain undiagnosed, mainly because of lack of access to genetic testing.Objective and hypotheses: The aim of our study was to do a comprehensive genetic analysis of the whole pediatric and young adult autoimmune antibody negative diabetes population of Lithuania.Method: 860 children (age 0&...

Background: Although growth hormone (GH) and the GH releasing hormone receptor (GHRHR) are known as etiologic factors in non-syndromic isolated growth hormone deficiency (IGHD), very few mutations have been identified in this rare condition (accounting for only 6–12.5% and 0–6.7% of IGHD cases depending on studies). The functional consequences of the identified variants have rarely been assessed.Objective and hypotheses: To assess the contribut...

Background: Vitamin D deficiency in children is a common cause of rickets, and a potential risk factor for extraskeletal adverse health outcomes. Its prevalence in Haiti has not been assessed.Objective and hypotheses: To examine the prevalence of vitamin D deficiency in dark-skinned young children in Haiti.Method: Cross-sectional study of healthy Haitian children 9 months to 6 years across thr...

Background: Maternal bariatric surgery is associated with increased risk of small-for-gestational-age infants. Risk of nutritional deficiencies in neonates of mothers with prior gastric bypass (GBP) is unclear.Methods: This study compared the clinical and cord blood biological characteristics of 56 newborns of GBP mothers and 56 newborns of healthy mothers, in the Obstetrics Department of Angers University Hospital between 01/03/2008 and 31/10/2012. Afte...