hrp0086p1-p8 | Adrenal P1 | ESPE2016

The Effect of Obesity on the Stress Response: The Paradigm of Surgical Stress

Fili Foteni , Salakos Christos , Pervanidou Panagiota , Bartzeliotou Anastasia , Papassotiriou Ioannis , Chrousos George , Dacou-Voutetakis Catherine , Voutetakis Antonis

Background: The ability to respond to stress constitutes a defensive protective mechanism; both inadequate and excessive responses may be detrimental.Objective and hypotheses: To investigate the effect of increased body weight on the hormonal response to stress in children. Scheduled surgical procedures include two stressful parts, a psychological one (anticipation of operation) and a biological one (surgical stress per se) and were chosen as a study mod...

hrp0089p3-p149 | Fat, Metabolism and Obesity P3 | ESPE2018

The Effect of Vitamin D Supplementation on Metabolic Syndrome Parameters in Overweight and Obese Children and Adolescents in Greece

Giannios Christos , Nicolaides Nicolas , Farakla Ioanna , Papadopoulos Georgios , Gennitsaridi Sofia , Karampatsou Sofia , Kolaitis Gerasimos , Chrousos George , Charmandari Evangelia

Background: Accumulating evidence suggests that decreased 25-hydroxyvitamin [25(OH)D] concentrations are associated with components of the metabolic syndrome.Objective: The aim of our study was to investigate the effect of vitamin D supplementation on metabolic syndrome parameters in obese children and adolescents.Patients and methods: Two hundred thirty two (n=232) obese children and adolescents aged [mean ±S....

hrp0086p1-p21 | Adrenal P1 | ESPE2016

Increased Salivary and Hair Cortisol and Decreased Salivary Alpha-Amylase Concentrations in Obese Prepubertal Girls

Papafotiou Chrysanthe , Christaki Eirini , van den Akker Erica , Wester Vincent , Apostolakou Filia , Papassotiriou Ioannis , Chrousos George , Pervanidou Panagiota

Background: Obesity has been associated with perturbations of the hypothalamic–pituitary–adrenal (HPA) axis and the sympathetic nervous system (SNS). Scalp hair cortisol has been recognized as a reliable index of long-term cortisol concentrations.Objective and hypotheses: Aim of this study was to compare indices of HPA axis and SNS activities, such as, respectively, the salivary cortisol and alpha-amylase diurnal patterns, and their relations i...

hrp0086p1-p7 | Adrenal P1 | ESPE2016

Transient Generalized Glucocorticoid Hypersensitivity Syndrome

Kyritsi Eleni Magdalini , Nicolaides Nicolas C , Lamprokostopoulou Agaristi , Xaidara Athina , Georgiadou Elizabeth , Dimitropoulou Vassiliki , Stefa Alketa , Sertedaki Amalia , Chrousos George P , Charmandari Evangelia

Background: Transient Generalized Glucocorticoid Hypersensitivity (TGGH) is a rare disorder characterized by increased tissue sensitivity to glucocorticoids and compensatory hypoactivation of the hypothalamic–pituitary–adrenal (HPA) axis. The condition itself and the underlying molecular mechanisms have not been fully elucidated.Objective and hypotheses: To present the clinical manifestations, endocrinologic evaluation and molecular studies in ...

hrp0086p2-p270 | Diabetes P2 | ESPE2016

Seasonality of Type 1 Diabetes in Children and Adolescents According to Date of Diagnosis and Date of Birth in a Large Diabetes Centre

Vasilakis Ioannis Anargyros , Kosteria Ioanna , Tzifi Flora , Christopoulos-Timogiannakis Evangelos , Kotrogianni Paraskevi , Chrousos George , Kanaka-Gantenbein Christina

Background: There are studies supporting the seasonality of diabetes according to date of diagnosis and date of birth, with most T1D children being diagnosed in fall and winter and most of them been born in the same period. That is in concordance with previously published data from 1978 to 2008 in our country.Objective and hypotheses: To assess whether there is a seasonal variation of diabetes onset according to date of diagnosis and date of birth of inc...

hrp0089rfc6.5 | Fat, Metabolism and Obesity | ESPE2018

High-Throughput Untargeted Plasma Metabolomics Unravels Gender Dimorphic Metabolic Trajectories in Naturally Conceived and ICSI Prepubertal Children

Telonis Aristeidis G , Gkourogianni Alexandra , Papassotiriou Ioannis , Konsta Maria , Papastamataki Maria , Margeli Alexandra , Bartzeliotou Anastasia , Mantzou Emilia , Kosteria Ioanna , Mastorakos George , Loutradis Dimitrios , Chrousos George P , Klapa Maria I , Kanaka-Gantenbein Christina

Background: Accumulating evidence has indicated that assisted reproductive technologies (ART) influence the metabolic physiology of the offspring, with a higher predisposition to metabolic disorders. Long-term metabolomic studies that separately consider males and females conceived with intra-cytoplasmic sperm injection (ICSI) vs naturally conceived (NC) children are needed. Previously, we had reported that ICSI-conceived prepubertal girls exhibit significant alterations in th...

hrp0095p1-30 | Bone, Growth Plate and Mineral Metabolism | ESPE2022

Vitamin D may facilitate Clock/Bmal1-DNA interactions in a Vitamin D receptor-independent fashion

Nicolaides Nicolas , Papakonstantinou Eleni , Vlachakis Dimitrios , Chrousos George

Background: The Clock/Bmal1 transcription factor heterodimer regulates the circadian activities of many biological systems, including the hypothalamic-pituitary-adrenal (HPA) axis, by trans-activating or trans-repressing downstream target genes. 1,25 Dihydroxy Vitamin D (Vitamin D), a sterol hormone that is activated by exposure to sunlight, plays a fundamental role in maintaining calcium and phosphorus homeostasis. Recent evidence suggests that the nuclear vi...

hrp0092fc13.6 | Adrenals and HP Axis | ESPE2019

Insights Into the Role of Cortisol in the Formation of the Clock/Bmal1 Complex and its Interaction with dsDNA, via Molecular Dynamics Simulations

Nicolaides Nicolas , Raftopoulou Sofia , Kino Tomoshige , Vlachakis Dimitrios , Chrousos George

Background: The circadian rhythm-generating peripheral Clock/Bmal1 heterodimer complex regulates the circadian activities of many biological systems, including the hypothalamic-pituitary-adrenal (HPA) axis, by trans-activating or trans-repressing downstream target genes.Objective and Hypotheses: To investigate the potential role of elevated cortisol in Clock/Bmal1 heterodimer complex-generated circadian biorhythms, both ...

hrp0089p3-p197 | GH & IGFs P3 | ESPE2018

Adherence and Long-term Outcomes of Therapy in Pediatric Subjects in Greece Using Easypod™ Electromechanical Device for Growth Hormone Treatment: The Phase IV Multicentre Easypod™ Connect Observational Study (ECOS)

Charmandari Evangelia , Michalakos Stefanos , Sakellariou Dimitris , Koledova Ekaterina , Chrousos George

The Easypod™ Connect Observational Study (ECOS) was the first global study of easypod™, currently the only electronic injection device for recombinant human growth hormone (r-hGH; Saizen®). ECOS reported accurate and robust real-time adherence data in a large cohort of patients. In this analysis, we assess the adherence of r-hGH administered via easypod™ in a cohort of Greek patients from ECOS (EMR200104-520, NCT01363674). Patients aged 2–18...

hrp0084p2-187 | Adrenals | ESPE2015

A Large Family with a Novel Mutation in the SCNN1A Gene Causing a Mild and Transient form of Autosomal Recessive Pseudohypoaldosteronism Type 1 (PHA1)

Efthymiadou Alexandra , Sertedaki Amalia , Chrousos George , Chrysis Dionisios

Background: PHA1 is a rare inherited disease characterized by resistance to aldosterone action and distinguished in two forms: the autosomal dominant renal form caused by mutations of the NR3C2 gene (MR) and the autosomal recessive systemic form caused by mutations of the subunit genes SCNN1A, SCNN1B, SCNN1G of the epithelial sodium channel (ENaC). The classic phenotype of the autosomal recessive form of PHA1 is usually severe, lifelong, and expressed with mu...