ESPE Abstracts

Introduction: Pediatric obesity is a global public health problem that is associated with severe cardiometabolic consequences. Weight management interventions focusing on lifestyles have shown some promising results, but attrition rates are often high and reasons for dropout are poorly understood.Objectives: We aimed toestimate the prevalence, and identify the determinants of attrition among pediatric participants in the first year of a 2-year lifestyle ...

Context: The early activation of the hypothalamic-pituitary-gonadal axis during infancy can be used in the evaluation of infants suspected of disorders of sex development (DSD). However, few data exists on sex-specific reference ranges for these hormones during early life.Objective: To evaluate sex-differences in reproductive hormone concentrations in serum from healthy infants in order to define sex-specific cut-off values and to apply these in infants ...

Background: Sulfonylureas (SU) have proven to be effective in patients with monogenic diabetes owing to potassium channel mutation. They allow the discontinuation of insulin and a good metabolic control. Long-term data arguing for a persistent beneficial effect of SU are missing.Objective and hypotheses: SU provide a good metabolic control maintained over time in patients with neonatal diabetes.Method: From a French cohort of 34 pa...

Background: Prenatal androgen exposure can lead to variable virilization of external female genitalia. The lack of a consensus definition of clitoromegaly and the limited data available on normal steroid levels in female neonates makes its diagnosis difficult.Objective and hypotheses: The aims of this study were (i) to define reference sizes for external female genitalia in term and preterm neonates as a function of gestational age and birth weight; and ...

Context: The mouse ERα−/− knock-out model and rare human ESR1 gene mutations identified to date have demonstrated crucial role of ERα in control of energy homeostasis and glucose metabolism. Subjects with ERα deficiency show features of estrogen resistance (ESTRR) with continuous linear growth in adulthood.Patient: We describe a 20-year-old female, with unknown family history, who presented...

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: Nephrogenic syndrome of inappropriate antidiuresis (NSIAD) is a very rare clinical condition. Patients suffer from hyponatremia, hypo-osmolality with inappropriately elevated urinary osmolality and undetectable AVP levels. Activating mutations of AVPR2, the vasopressin receptor type 2 (V2R), induce a prolonged signaling of the intracellular cAMP/PKA pathway and cause NSIAD in patients.Objective and hypotheses: To describe a new phenotype in a...

Background: Central precocious puberty (CPP) results from premature activation of the hypothalamic-pituitary-gonadal axis and increasing evidence suggests a genetic origin. Premature activation of the GnRH secretion in CPP may arise either from gain-of-function mutations of the KISS1 and KISS1R genes or loss-of-function manner mutations of the MKRN3 gene leading to MKRN3 deficiency.Objective and hypotheses: To identify loss-of-...

Aims: The TEENs study is an international, cross-sectional observational study aiming to assess type 1 diabetes (T1D) management and psychosocial parameters in children, adolescents, and young adults, to identify approaches to optimise glycaemic control and outcomes. Results from 11 European countries are presented.Methods: 111 centres providing diabetes care to young T1D patients collected data by participant interview, medical record review and partici...

Background: Isolated gonadal dysgenesis due to NR0B1 locus duplication is a rare cause of 46,XY DSD. Almost reported cases were a total gonadal dysgenesis with complete female phenotype associated with primary amenorrhea. Only two unrelated cases of isolated partial gonadal dysgenesis with molecular characterization have been reported. The risk of gonadoblastoma is high.Objective and hypotheses: Phenotype correlation study (clinical, hormonal, and histol...