ESPE Abstracts

Introduction: In 2009/2010 Hospital Virgen del Rocío, Seville, Spain changed the treatment of patients with GH deficiency (GHD) from various original recombinant human GH (rhGH) to a biosimilar rhGh (Omnitrope®, Sandoz).Objective: To evaluate the consequences on growth parameters of switching treatment, from original rhGHs to Omnitrope® in children with GHD, in a window period of 36 months.Metho...

Introduction: The circadian rhythmicity of the hypothalamic–pituitary–adrenal (HPA) axis depends on the synchronization of the clock molecular systems in the suprachiasmatic nucleus and in the adrenals. When and how this process occurs in the adrenal is unknown.Objective: To assess the ontogeny of daily variation of the expression of the adrenal clock genes (Clock, Arntl, Per1, Per2, Per3, Cry1, Cry2, Rora, and Nr1d1), steroid...

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=...

Background: Signaling through the phosphoinositid-3-kinase (PI3K) pathway modulates bone development and remodeling. We aimed to dissect the role of phosphatase and tensin homolog (Pten), a negative regulator of PI3K signaling, in osteoprogenitor cells.Methods: Femura, tibiae and bone marrow stromal cells (BMSCs) from mice with Cre-inducible Pten knockdown in cells expressing the transcription factor Osterix (Pten cKO) a...

Background: Raine syndrome (RS) also known as lethal osteosclerotic bone dysplasia, is a rare autosomal recessive bone disorder. Most of patients with RS die within the first days or weeks of life due to pulmonary hypoplasia. The causative gene FAm20C is located on chromosome 7p22.3. FAm20C is one of the genes that regulate phosphate production. Here, we present a case of RS with hypophosphatemic rickets and a new mutation in FAm2</s...

Introduction&Aim: Activation of mechanistic target of rapamycin (mTOR) as a major regulator of adipogenesis and lipid accumulation is controlled by upstream regulators hamartin/tuberous sclerosis complex (TSC) 1 and tuberin/TSC2. Hamartin and tuberin form a protein complex that inhibits signal transduction to mTOR. The impact of TSC1 deficiency is not clearly defined in human adipose tissue. We identified a likely pathogenic TSC1 splicing variant in a lipo...

Background: Bone development and remodeling are controlled by the phosphoinositid-3-kinase (PI3K) signaling pathway. We investigated the effects of downregulation of phosphatase and tensin homolog (Pten), a negative regulator of PI3K signaling, in osteoprogenitor cells.Methods: Femura, tibiae and bone marrow stromal cells (BMSCs) from mice with Cre-inducible Pten knockdown in cells expressing the transcription factor Ost...

Background: Neuroendocrine tumors from adrenal and extra-adrenal chromaffin cells are characterized by overproduction of catecholamines (CA), leading to the increase of urinary O-methylated metabolites (uO-Met) excretion, reliable biomarkers for the initial screening, diagnosis and monitoring of patients with pheochromocytoma and paragangliomas (PPGLs).Objective: To develop and validate a UHPLC-MS/MS method for the simul...

Introduction: Adolescents are considered the main consumer group of Energy Drinks (EDs). EDs are associated with adverse cardiovascular events, such as severe cardiac arrhythmia or arterial hypertension. Recent studies of our department revealed a significantly increased brachial blood pressure and arterial stiffness after the acute ED consumption in healthy adolescents. Increased central blood pressure is linked with the onset of end-organ damages such as lef...

Background: Thyroid hormones regulate metabolism and play a significant role in cardiovascular homeostasis. However, the association between thyrotropin (TSH), thyroid hormones and cardiometabolic risk factors has not been elucidated in euthyroid children and adolescents with overweight and obesity.Aim: Τo evaluate the relation of TSH and thyroid hormones with cardiometabolic parameters in euthyroid obese, overweight...