ESPE Abstracts

Introduction: Primary adrenal insufficiency (PAI) is a potentially life-threatening condition that requires appropriate diagnosis and treatment. The most common cause of PAI is congenital adrenal hyperplasia (CAH), but other well-established aetiologies include metabolic and autoimmune disorders, and physical damage. Mutations in more than 30 genes have now been associated with PAI, with considerable biochemical and phenotypic overlap. It is therefore importan...

Key Words: Congenital Adrenal Hyperplasia, Advanced bone age, Aromatase inhibitors, Predicted Adult HeightIntroduction: Congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency (21-OHD) is characterized by cortisol and mineralocorticoid deficiency with excess adrenal androgen production. Standard treatment includes glucocorticoid and mineralocorticoid replacement. Slightly supraphysiological glucocorticoid r...

Background: Treatment options in extremely tall adolescents are limited. Bilateral epiphysiodesis has been reported to be a safe and effective method to reduce predicted final height. However, there is still limited data on final height and long-term safety.Objective: The aim was to assess the safety and efficacy of bilateral epiphysiodesis to reduce adult height in adolescent girls and boys with extreme tall stature.</p...

Background: Graves’ Disease (GD) is the most common cause of hyperthyroidism in children and develops because of stimulation of the thyroid gland by TSH receptor auto-antibodies (TSHR Ab). An increased risk of obesity has been described in both adults and children following initiation of anti-thyroid drug (ATD) therapy but the longer term impact of GD and it’s treatment on physique in children is unclear.Aims:</strong...

Introduction: Mammalian sex development is directly dependent on gonadal determination. Whole exome sequencing in patients with differences of sex development (DSD) allows the discovery of new factors involved in human sex development. One of these factors is NWD1 (NACHT and WD repeat domain containing 1) a cytosolic protein that seems to play a role in modulating androgen receptor signaling. We identified variants in the NWD1 gene in six und...

Prader Willi Syndrome (PWS) is a rare neuro-genetic disorder inherited as a result of lack of expression in 15q11-13 gene and 70% are paternally inherited. Characteristic features are dysmorphism, behavioural problems, infantile hypotonia, short stature, hypothalamic dysfunction, hyperphagia and morbid obesity. The long-term morbidity and mortality depend on hypothalamic dysfunction and obesity. While multidisciplinary care is essential, growth hormone (GH) is a recognized...

Neonatal severe primary hyperparathyroidism (NSHPT) is a rare and life-threatening disorder caused by inactivating mutation in CASR gene, which encodes Ca-sensing receptor. NSHPT leads to severe neonatal hypercalcemia with inappropriately increased serum intact parathyroid hormone (iPTH) and decreased urinary Ca excretion. Hydration, forced diuresis, calcitonin, bisphosphonates and cinacalcet have been used to lower serum Ca prior to surgery. Total parathyroidectomy i...

Abstract: Steroidogenic factor 1 (SF1)/"nuclear receptor subfamily 5 group A member 1" (NR5A1) is involved in adrenal and gonadal development, steroidogenesis and reproduction. The first patient, published in 1999 presented with a 46,XY difference of sex development (DSD) and adrenal insufficiency. The following year the first female patient with only adrenal insufficiency was described. Since then, heterozygous changes in SF-1/NR5A1 causing 46,XY DSD ...

Background: Disorders (or differences) of sex development (DSD) are rare congenital conditions in which the development of chromosomal, gonadal, or anatomical sex is atypical. The luteinizing hormone/chorionic gonadotropin receptor (LHCGR) is important for male sex development. LHCGR mutations can cause Leydig cell hypoplasia, which is an autosomal recessive disorder.Objective and hypotheses: We found two heterozygous mutations in the LHCGR, a n...

Multiple epiphyseal dysplasia (MED) is a chondrodysplasia characterised by delayed epiphyseal endochondral ossification, resulting in disproportionate short stature and early onset osteoarthritis. MED can be caused by heterozygous mutations in COMP, MATN3, COL9A1, COL9A2 and COL9A3, or bi-allelic mutations in SLC26A2. Human induced pluripotent stem cells (hiPSCs) are reprogrammed somatic cells which can differentiate to form all body tissues and have excellent potential for ti...