ESPE Abstracts

Introduction: Thyroid dyshormonogenesis (TD) is a heterogeneous group of genetic diseases caused by the total or partial defect in the synthesis or secretion of thyroid hormones. It presents clinical heterogeneity, from subclinical hypothyroidism (SH) to goitre. The clearer understanding of the pathways and enzymatic activities involved in the synthesis of thyroid hormones has allowed us to identify an important number of causal genes. Defective organification...

Introduction: The thyrotropin receptor (TSHR) has a key role in the thyroid gland. It is involved in folliculogenesis, differentiation, organogenesis, and thyroid hormone synthesis and production. Its genetic defects can cause poor differentiation (thyroid dysgenesis) and/or thyroid malfunction (thyroid dyshormonogenesis, TD). Therefore, its phenotype spectrum is wide, ranging from severe congenital hypothyroidism (CH) to mild hyperthyrotropinemia. Some hetero...

Background: Prader–Willi syndrome (PWS) is caused by absence of expression of imprinted genes on the paternal chromosome 15 (15q11.2–q13) due to a paternal deletion, maternal uniparental disomy 15 and rarely an imprinting defect. The clinical signs of PWS are hypotonia, muscle weakness, excessive eating, morbid obesity, delayed global development, hypogonadism, and short stature. Marfan syndrome is caused by mutations in the FBN1 gene, located on chromosome ...

Objective: To describe efficacy and security of treatment protocol with gonadotropins in adolescents with hypogonadotropic hypogonadism (HH).Methods: Prospective study of patients with HH who received hGH and rhFSH in puberty. HH diagnosed during first months of life or in adolescence (testicular volume<4cc in >16 year-old with FSH<1.2UI/L, testosterone<40ng/dL and GnRH-test with LH-peak<6UI/L)<p class...

Background: Congenital hypogonadotropic hypogonadism (CHH) is defined by a partial or complete failure of pubertal development due to inadequate secretion of gonadotropins, which is triggered by deficient GnRH activity. Diagnosis is confirmed by low sex hormone levels and low or inappropriately normal levels of LH and FSH, in the absence of anatomical abnormalities in the hypothalamic-pituitary axis, and without other pituitary hormone deficiencies.<p clas...

Introduction: Excessive exposure of children to electronic devices is related to an increased risk for diabetes and obesity and greater chance of developing visual and cognitive disorders.Objective: To understand the time spent with screens (cell phone, tablet, computer, and television) by children under 5 years old in Goiânia-Goiás-Brazil and analyze the consequent impacts of this habit and parental positio...

Primary adrenal insufficiency (PAI) is a rare but life-threatening condition. It is defined as insufficient production or lack of action of glucocorticoids. Congenital adrenal hyperplasia (CAH) is the most common childhood cause, although numerous monogenic causes unrelated to CAH have been identified. Description of the etiology, age at diagnosis, clinical and biochemical characteristics, treatment and genetics of patients diagnosed with PAI between 0-18 years of age reviewed...

Introduction: Dyslipidemia secondary to obesity is a risk factor related to cardiovascular disease events, however a pathological conventional lipid profile (CLP) is infrequently found in obese children. The objective of our study is to evaluate the advanced lipoprotein profile (ALP) and its relationship with cardiac changes, metabolic syndrome and inflammatory markers in a population of morbidly obese adolescents with normal CLP and without type 2 diabetes me...

Introduction: Pituitary adenomas (PPAs) are uncommon in childhood and adolescence, accounting for 2-6% of all intracranial neoplasms. Most data are based on case reports and only a few series have been reported. Delayed puberty, short stature, galactorrhea and weight gain are common features at presentation in pediatric patients. Functional tumors constitute a vast majority (90%) of PPAs including corticotropinomas in the first decade followed by relative upsu...

Classic features of inactivating PTH/PTHrP Signaling Disorder 2 or 3 (iPPSD2, iPPSD3), i.e. former pseudohypoparathyroidism include multi-hormone resistance, short stature, subcutaneous ossifications, brachydactyly, and early-onset obesity and a molecular defect at the GNAS region. In addition, patients may present with less-known features including craniosynostosis (CSO).Objective: To describe the prevalence of CSO in a cohort ...