ESPE Abstracts

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: Sulfation is required for the metabolism of numerous compounds, including proteoglycans, steroid hormones, neurotransmitters, toxic chemicals, and drugs like acetaminophen. The sulfate transporter SLC13A1 is responsible for the intestinal absorption and the renal reabsorption of inorganic sulfate, but loss-of-function mutations in this gene have never been described in man. Here, we describe a male with a biallelic loss-of-function variant, i.e.,...

Background: Patients with autosomal dominant hypocalcemia type 1 (ADH1), due to germline gain-of-function calcium-sensing receptor (CASR) mutations, have hypocalcemia and seizures, hyperphosphatemia, hypercalciuria and inappropriately low parathyroid hormone (PTH) concentrations. Treatment for ADH1 comprises calcium and vitamin D analogs, however, their use predisposes to nephrocalcinosis and renal impairment. In contrast, recombinant human PTH(1-34) may incre...

Background & Aims: Hypoglycaemia is a constant threat for all patients with congenital hyperinsulinism (CHI) and, left untreated, can lead to neurological damage and impaired development. To improve glycaemic monitoring, self-monitoring-blood-glucose (SMBG) is increasingly being replaced by Continuous Glucose Monitoring (CGM) with potential to identify illness patterns and treatment responses although with unproven benefit for patients and families. Explor...

Background: GnRH analogue and subsequent oestradiol treatments are indicated to alleviate gender dysphoriain adolescent male to female young people (MtF; transgirls). Side effects include impairments in gonadal histology that may cause infertility or biological sterility. Current guidelines encourage professionals to address potential infertility risk and fertility preservation options with transgender youth and their families before starting these treatments.<p class="abs...

Background: There is increasing recognition that the in utero environment might influence obesity risk.Objective and Hypotheses: We explored the hypothesis that smoking and alcohol consumption in pregnancy are associated with offspring body composition using the Southampton Women’s Survey mother-offspring birth cohort study.Method: At 34 weeks’ gestation, maternal smoking and any alcohol intake in the preceding 1...

Background: Hyperinsulinism (HI) due to excess and dysregulated insulin secretion is the most common cause of severe and recurrent hypoglycaemia in childhood. High cerebral glucose utilisation in the early hours results in high risk of hypoglycaemia for people with diabetes and carries a significant risk of brain injury. Prevention of hypoglycaemia is the cornerstone of management for HI but the risk of hypoglycaemia at night or indeed the timing of hypoglycae...

Introduction: Congenital Hyperinsulinism (CHI) is a rare disease of hypoglycaemia due to excess insulin production. Patients with both focal and diffuse forms of CHI may have severe hypoglycaemia not responsive to medical therapies. Such patients require lesionectomy or subtotal pancreatectomy with a corresponding necessity for enhanced glycaemic monitoring during the peri-operative period. Subcutaneous Continuous Glucose Monitoring (CGM) provides real-time hi...

Background: Birth chest circumference (BC) may be related to Insulin-like-Growth-Factor-I blood serum levels (IG1) in the human newborn (NWB).Objective and hypotheses: We evaluated the relevance of birth body weight (BW) to birth crown-heel length (BL) ratio (BW through BL, BW/BL) in BC relations to IG1 after control for BW for birth gestational age (GA)<=10th centile (SGA), respiratory oxygen supplementation (O2S) and assisted ventilation of any kin...

Background: Premature adrenarche (PA) has been associated to increased metabolic risk. Areas of controversy regarding associated co-morbidities are precocious pubarche, PCOS and lower birth weight, which may depend on ethnic background.Objective and hypotheses: To describe the risk of precocious thelarche (PT, <8 years), pubarche (PP, <8 years F, <9 years M) and gonadarche (PG, <9 years) in children with premature adrenarche.<p class=...