ESPE Abstracts

Background: Congenital hypothyroidism (CH) comprises a heterogeneous group of disorders that includes diseases of the hypothalamo-hypophyseal system. The latter are missed on TSH based screening programs leading to increased morbidity and mortality. Additional T4 determinations, allows an early detection of CH of central origin (CH-C).Objective and hypotheses: To report the findings of a neonatal screening program based on determination of TSH...

Background: MEN1 is an autosomal dominant disorder that is due to mutations in the tumor suppressor gene MEN1, which encodes a 610-amino acid protein, menin. MEN1 is characterized by the occurrence of parathyroid, pancreatic islet, and anterior pituitary tumors. The prognosis for MEN1 patients might be improved by presymptomatic tumor detection and undertaking treatment specific for MEN1 tumors.Objective and Hypotheses: Genetics is increasingly becoming ...

The pathogenesis of altered bone metabolism leading to bone mass loss and fractures in patients with cystic fibrosis (CF) is complex, and can involve malnutrition, malabsorption, lack of physical activity, vitamin D and K insufficiency, systemic inflammation, respiratory failure, liver disease, hypogonadism, and treatment with glucocorticosteroids. Many studies reported osteopenia, osteoporosis and fractures in adults with CF, with bone loss starting at an earlier age than in ...

Approximately 12% to 17% of MEN1 patients are diagnosed with the disease in the first two decades of life. Clinical evident disease appears uncommon before adolescence, with consensus guidelines currently recommending phenotype screening of confirmed MEN1 carriers commencing by age 5 years. A recent publication reviewed the recent literature in this area, that demonstrates that mortality is rare in children and young adults, whereas morbidity is not uncommon for various endocr...

Aim: Recommendations for the management of Congenital Adrenal Hyperplasia (CAH) outline a target 17-OH Progesterone (17OHP) of 12-36nmol/l, but do not specify target concentrations for Androstenedione (D4). We aimed to study the temporal variations of these biomarkers in patients from different geographical regions.Method: This retrospective multi-centre study, including 21 centres (14 countries), analysed serum biomarke...

Background: Hypercalciuria, short stature and low bone mineral density are features of distal renal tubular acidosis (dRTA) and osteogenesis imperfecta (OI). If untreated, the presence of dRTA in patients with OI may worsen the prognosis and lead to poorer height outcomes. We describe two unrelated children with an unusual association between OI and dRTA.Cases: Patient 1 is a 7-year-old female diagnosed prenatally with a COL1A2 mutation and postnatally w...

Aim: Recommendations for replacement glucocorticoids in CAH suggest a dose per body surface area (BSA) of glucocorticoids of 10-15mg/m2/day to maintain a 17-OH Progesterone (17OHP) level of 12-36 nmol/l across all ages. We used longitudinal analysis to assess whether biomarkers and dose of hydrocortisone varied with age in children within the I-CAH registry .Method: This retrospective multi-centre study, inclu...

Introduction: Leydig cell tumors are rare (3% of testicular neoplasms). 80% of cases occurs in adult population, although a quarter is described in prepubertal patients older than four years. The clinic differs according to the patient's age. Activating mutations, acquired and limited to the tumor tissue, are described in exon 11 of the LH receptor gene. And in mixed Sertoli-Leydig tumors activating mutations of the Gs-alpha subunit of the stimulat...

Puberty is a crucial biological process normally occurring at a specific time during the lifespan, during which sexual and somatic maturation are completed, and reproductive capacity is reached. Pubertal timing is not only determined by genetics, but also by endogenous and environmental cues, including nutritional and metabolic signals. During the last decade, we have learned much regarding the essential roles of kisspeptins and the neuropeptide pathways that converge on these...

Background: Several studies have suggested that vitamin D supplementation in early childhood is successful in decreasing the risk of type 1 diabetes (T1D) through a complex immunomodulatory role. However, Intervening in disease once clinical symptoms have appeared and autoreactive immune responses are active might be more challenging. Controlled trials with vitamin D supplementation in recent-onset T1D have shown mixed results.Objective and hypotheses: T...