ESPE Abstracts

Background: In vitro studies suggest a broader role for aldosterone, beyond elevating blood pressure. Clinical data support the notion that aldosterone can directly alter the function of the immune system and can participate in low-grade inflammation which leads to blood pressure elevation and end organ damage.Objective and hypothesis: To assess in humans, whether aldosterone plasma levels and mineralocorticoid receptor (MR) expression associate...

Background: Apparent mineralocorticoids excess syndrome (AME) is an unusual cause of hypertension, caused by genetic mutation of type 2 11β-hidroxysteroid desydrogenase (11BHSD2) enzime, which metabolizes cortisol(F) to cortisone(E). Patients with AME born from consanguineous parents, are small for gestagional age (SGA) and could have nephrocalcinosis, hypokalemia and high plasma cortisol/cortisone relation (F/E).Objective: To tell the clinical and ...

Introduction: Cortisol homeostasis dysregulation has been associated to essential hypertension in adults. Higher levels of cortisol have been described in preterm-born individuals, who have also a higher risk of hypertension at younger ages. Several enzymes modulate peripheric cortisol metabolism. The 11b-hydroxysteroid dehydrogenase (11b-HSD) type 2 metabolizes cortisol into cortisone, preventing mineralocorticoid receptors’ activation by cortisol. The i...

Background: Severe deficiency of 11β-hydroxysteroid dehydrogenase type 2 (11βHSD2) triggers activation of mineralocorticoid receptor (MR) by cortisol and causing apparent mineralocorticoid excess (AME) syndrome characterized mostly by low-renin arterial hypertension and hypokalemia. In 2003, we studied a patient with AME (3 years-old) having two homozygous mutation, D223N (rs121917833) and a SNP C>T in intron 3 (rs376023420) (Carvajal et al. JCEM 2003).<p cla...

Introduction: The dichotomous nature of the definition of Metabolic Syndrome (MS) in both children and adults can under-diagnose subjects at risk and prevents adequate follow-up of therapeutic interventions. Recently, a continuous score of MS (sSMp) was validated in the pediatric population based on the IDF criteria for a population> 16 years.Objectives: To apply sSMp in a Chilean pediatric population cohort and corr...

Introduction: Previous studies have demonstrated that hypertension may begin early in the life. Under physiological conditions, the Renin-Angiotensin-Aldosterone System (RAAS) is highly variable due to variations in salt intake and other factors, making it difficult to interpret results. We measured aldosterone and renin, and compared them with sodium and potassium excretion in a normotensive pre-pubertal population.Methods: A cross-sectional study was ...

Background: Thyroid dysfunction is a common condition in children and has been associated with metabolic syndrome, hypertension, cardiovascular disease and mortality. Due to the obesity epidemic in paediatric population exists a higher prevalence of nonalcoholic fatty liver disease (NAFLD), a condition associated with insulin resistance and metabolic syndrome. In adults it has been observed that elevated TSH, even within the normal range, are positively correlated with increas...

Background: Familial hyperaldosteronism type 1 (FH-1), is caused by the presence of a chimeric CYP11B1/CYP11B2 gene that produces high amounts of aldosterone in response to ACTH and severe hypertension. An early diagnosis and treatment are important, not only to manage hypertension but also to avoid possible deleterious effects of aldosterone on the endothelium and cardiovascular diseases.Clinical case: A 3 months old boy was referred for evalua...

Background: EuRRECa (European Registries for Rare Endocrine Conditions) is a new project incorporating the development of a core endocrine registry and the development of an e-reporting programme for rare endocrine conditions (e-REC) that are covered within Endo-ERN (https://eurreca.net/e-rec/).Methods: 24 Endo-ERN centres within 12 countries participated in a pilot phase of e-REC...

Background: Oxidative stress has been implicated in the development and progression of complications in type 1 diabetes (T1DM). Vitamin E (α-tocopherol) undergoes β-oxidation of its chomanol ring and the resulting metabolite α-TLHQ has been proposed as a potential biomarker of oxidative stress. HbA1c relates in T1DM to microvascular complications predominantly although the end-points are late in disease development. The oxidative stress process may act independe...