ESPE Abstracts

NMDA (N-Methyl-D-aspartic acid) receptors have been shown to control the timing of sexual maturation in laboratory animals. Therefore, variants in genes impacting NMDA receptor signaling might be predicted to affect human puberty. We studied an extended family with extremely delayed puberty (menarche at 16.5 - 18 years for female family members and pubertal onset at 16 years for male family members). Exome sequencing revealed a rare missense variant (F900V) in DLG2, w...

Introduction: The envelope protein of Human Endogenous Retrovirus type W (HERV-W-Env) has been shown to be associated with type 1 diabetes (T1D) pathogenesis in adults patients. This protein is expressed in pancreas of T1D patients and it seems to correlate with macrophage infiltrations. In vitro and in vivo studies have demonstrated that HERV-W-Env inhibits insulin secretion and promotes hyperglycemia. Furthermore, HERV could be implicated in other auto-immune disorders. The ...

Background: Anti-Mullerian hormone (AMH) concentration is now well studied for prepubertal boys (Plotton, 2009, 2012) or women in reproductive medicine, but there is few data about reference value in newborns. This dosage could be helpful for the management of disorders of sex development.Objective: The objective was to determine reference values of AMH on umbilical cord blood and to compare the values to DSD new born diagnosed during the evaluation....

Background: Anti-Müllerian hormone (AMH) inhibits the in utero growth of the Müllerian structures in female fetuses. In neonates with suspected disorders of sexual development (DSDs), the presence of testicular tissues and functioning Sertoli cells can be investigated by testing for serum AMH concentration.Objective: To evaluate the performance of two new AMH assays in a hospital laboratory.Method: The technical performan...

Introduction: Prader-Willi Syndrome (PWS) is a complex genetic condition associated with feeding difficulties, hypotonia, developmental delay in infancy; hyperphagia leading to extreme obesity, growth failure and behavioral problems in childhood. Coeliac disease (CD), is an autoimmune disease characterized by gluten intolerance and a variety of symptoms most commonly diarrhea or constipation and failure to thrive. In PWS the challenge is to optimize growth while avoiding obesi...

Background: In children with Prader–Willi Syndrome (PWS), hypothalamic dysfunction plays a key role in the development of aberrant energy regulation, sleep-related breathing disorders, hypogonadism and impaired linear growth. Dysfunction of the hypothalamic–pituitary–adrenal (HPA) axis may contribute to the high incidence of sudden death. The prevalence and the extent of the dysfunction of HPA axis remain unclear.Method: Thirty-one (10M/21...

Background: The positive effect of GH therapy in small for gestational age (SGA) singletons has been shown in previous studies. Little is known about twin growth and GH treatment where only one twin is born SGA.Objective and hypotheses: We present data from two set of twins where one was appropriate for gestational age (control) and the other twin was SGA (treatment).Method: Twin pair 1: male monochorionic diamniotic (MCDA) twins b...

Background: Research has demonstrated that technologies to support diabetes self-management for people living with diabetes can have positive effects on medical and quality of life outcomes. It also shows that there may be an additional burden of wearing and using these technologies. Both diabetes and its treatment can have significant deleterious effect on quality of life, thus it is crucial that the interaction between the technology and the user offers maximum benefit with ...

For the safe delivery of Paediatric Diabetes services at DBTH during the COVID pandemic a postal HbA1c service with patients collecting capillary blood samples to send to the laboratory for analysis was proposed. The aim of this pilot study was to assess stability of HbA1c at ambient temperature in capillary whole blood samples collected into Sarstedt Microvette EDTA tubes. Samples were analysed on the day of collection on the TOSOH G11 analyser and then re-assayed daily for u...

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