hrp0082p3-d2-774 | Fat Metabolism & Obesity (1) | ESPE2014

The Prevalence of 25-Hydroxyvitamin D Insufficiency and Deficiency Among Overweight and Obese Children and Adolescents in Greece

Giannios Christos , Farakla Ioanna , Papadopoulos Georgios , Bakopoulou Ioanna , Nicolaides Nicolas C , Papathanasiou Chryssanthi , Drakopoulou Maria , Chrousos George P , Charmandari Evangelia

Background: The prevalence of obesity has increased dramatically in Greece in the last decades, and more than 30% of children and adolescents are currently overweight or obese. Obesity is associated with decreased circulating 25-hydroxyvitamin D concentrations, which might predispose to metabolic syndrome and cardiovascular morbidity and mortality.Objective and hypotheses: To determine serum 25-hydroxyvitamin D concentrations and their relationship to ca...

hrp0084p2-168 | Adrenals | ESPE2015

The Natural Mutant Receptor hGRαT556I Causes Primary Generalised Glucocorticoid Resistance Through Decreased Affinity for the Ligand and Impaired Interaction with the GRIP1 Coactivator

Nicolaides Nicolas C , Skyrla Eirini , Vlachakis Dimitrios , Psarra Anna-Maria G , Sertedaki Amalia , Kossida Sophia , Charmandari Evangelia

Background: Primary generalised glucocorticoid resistance (PGGR) is a rare condition characterised by tissue insensitivity to glucocorticoids owing to inactivating mutations of the hGR gene. A new case of PGGR was reported in a patient with an adrenal incidentaloma harboring a novel heterozygous point mutation in the hGR gene, which resulted in threonine (T) to isoleucine (I) substitution at amino acid position 556 of the receptor.Objec...

hrp0094p1-103 | Adrenal B | ESPE2021

Leukocyte telomere length in children with Congenital Adrenal Hyperplasia

Raftopoulou Christina , Abawi Ozair , Sommer Grit , Binou Maria , Paltoglou George , Fluck Christa , Akker Erica van den , Charmandari Evangelia ,

Introduction: Exposure to chronic stress and hypercortisolism is associated with decreased leukocyte telomere length (LTL), a marker for accelerated biological aging and cardiovascular disease. Children with congenital adrenal hyperplasia (CAH) are treated with glucocorticoids. The aim of our study was to investigate LTL in children with CAH and its relation with CAH subtype, daily glucocorticoid dose and treatment quality.Method...

hrp0094p1-105 | Adrenal B | ESPE2021

The genetic etiology of ACTH-dependent aldosterone hypersecretion in hypertensive patients without Primary Aldosteronism

Mourtzi Niki , Sertedaki Amalia , Markou Athina , Piaditis Georgios , Katsanis Nicholas , Traeger-Synodinos Joanne , Tsigos Constantinos , Charmandari Evangelia ,

Introduction: Compelling evidence suggests that Primary Aldosteronism (PA) is much more prevalent than previously thought, accounting for more than 20% of patients with resistant hypertension. Although, major advances have been made in the field of genetics underpinning sporadic and familial forms of PA, the etiology of mild forms of PA is poorly understood. In previous studies, we identified a distinct cohort of patients without PA who exhibited ACTH-dependen...

hrp0094p1-106 | Adrenal B | ESPE2021

Plasma Proteomics in Healthy Subjects with Differences in Tissue Glucocorticoid Sensitivity Identifies a Novel Proteomic Signature

Nicolaides Nicolas C. , Makridakis Manousos , Stroggilos Rafael , Koniari Eleni , Papageorgiou Ifigeneia , Sertedaki Amalia , Zoidakis Jerome , Charmandari Evangelia ,

Background: Tissue sensitivity to glucocorticoids is characterized by significant inter-individual variation in terms of therapeutic response and susceptibility to several stress-related disorders. Proteomics approaches, combined with appropriate bioinformatics analysis, offer a comprehensive description of molecular phenotypes with clear links to human disease pathophysiology.Objective and Hypotheses: To investigate the usefulness of pl...

hrp0094p2-2 | Adrenals and HPA Axis | ESPE2021

How do urine steroid metabolites of spot samples correlate with 24 hour urine specimens in children with congenital adrenal hyperplasia?

Sommer Grit , Abawi Ozair , Groessl Michael , Halbsguth Ulrike , Charmandari Evangelia , Akker Erika L.T. van den , Fluck Christa E. ,

Introduction: Steroid profiling in children with congenital adrenal hyperplasia (CAH) is used to monitor the balance between androgen and cortisol metabolites and to decide on the optimal glucocorticoid dosage. Twenty-four hour collection is the gold standard for measurement of steroid metabolites in urine, because steroid production follows a circadian rhythm and is influenced by short-term stress and steroid drugs. For some children, e.g. those who were diap...

hrp0097p1-63 | Fat, Metabolism and Obesity | ESPE2023

The effectiveness of novel E-Health applications for the management of obesity in childhood and adolescence during the COVID-19 outbreak in Greece

Ramouzi Eleni , Koutaki Diamanto , Paltoglou Georgios , Tragomalou Athanasia , Vourdoumpa Aikaterini , Manou Maria , Kassari Penio , Tzounakou Anastasia , Charmandari Evangelia

Background: The prevalence of childhood obesity has recently increased, particularly during the COVID-19 pandemic, which has led to lifestyle changes as a result of public health regulations and guidelines introduced by governments worldwide.Objective: To investigate the effectiveness of novel e-Health applications in addressing childhood obesity prior to and during the Covid-19 outbreak.Pa...

hrp0089p2-p154 | Fat, Metabolism and Obesity P2 | ESPE2018

Hair Cortisol Concentrations in Overweight and Obese Children and Adolescents

Genitsaridi Sofia , Karampatsou Sofia , Papageorgiou Ifigeneia , Mantzou Aimilia , Paltoglou Georgios , Kourkouti Christie , Papathanasiou Chryssanthi , Kassari Penio , Nicolaides Nicolas C , Charmandari Evangelia

Background: Obesity in childhood and adolescence represents a major health problem of our century that has reached epidemic proportions globally during the last decades. In obese subjects, a relatively high cortisol output in urine has been observed compared to nonobese individuals. However, cortisol concentrations in blood, saliva, and urine in association with obesity have not been consistent across studies. Hair cortisol concentrations (HCC) determined in scalp hair provide...

hrp0089lb-p4 | Late Breaking P1 | ESPE2018

An Updated Evolutionary Study in Glucocorticoid Receptors; Insights from a Comprehensive Phylogenetic, SNP’s and Mutation’s Analysis of the Nuclear Receptors Family: An Updated Evolutionary Study in Glucocorticoid Receptors; Insights from a Comprehensive Phylogenetic, SNP’s and Mutation’s Analysis of the Nuclear Receptors Family

Papageorgiou Louis , Papakonstantinou Eleni , Salis Constantinos , Raftopoulou Sofia , Mitsis Thanasis , Nicolaides Nicolas , Hagidimitriou Marianna , Eliopoulos Elias , Charmandari Evangelia , Chrousos George , Vlachakis Dimitrios

Background: Protein subfamilies within the Nuclear receptor (NR) family share common domain architecture. These closely related receptors and their cognate ligand compounds play a key role in homeostasis, reproduction, growth, and development. Despite their biological significance, their evolution and diversification remains to be elucidated. SNPs and mutations are characterized by the permanent alteration of the nucleotide sequence in the genome of an organism. These alterati...

hrp0086rfc1.3 | Adrenals | ESPE2016

Impaired Cardiac Function in a Mouse Model of Generalized Glucocorticoid Resistance

Lamprokostopoulou Agaristi , Varela Aimilia , Katsimpoulas Michalis , Dimitriou Constantinos , Athanasiadis Nikos , Soultou Eleana , Stefa Alketa , Mavroides Manolis , Davos Constantinos H. , Chrousos George P. , Kino Tomoshige , Georgopoulos Spiros , Charmandari Evangelia

Background: Glucocorticoids regulate a broad spectrum of physiologic functions essential for life and exert their actions through their ubiquitously expressed glucocorticoid receptor (GR). The GR interacts with several molecules, including the non-coding RNA growth arrest-specific 5 (Gas5), which decreases the transcriptional activity of the GR by preventing its binding to DNA, and reduces tissue sensitivity to glucocorticoids.Objective and Hypotheses: T...