hrp0086p1-p17 | Adrenal P1 | ESPE2016

Altered Stress System Activity in Children with ADHD

Angeli Eleni , Johnson Elizabeth , Korpa Terpsichori , Apostolakou Filia , Papassotiriou Ioannis , Chrousos George , Pervanidou Panagiota

Background: Attention-deficit/hyperactivity disorder (ADHD) is the most prevalent neurodevelopmental disorder worldwide. Evidence suggests dysfunction of the fronto-subcortical pathways and the dopaminergic and noradrenergic systems, as well as dysregulation of the stress system, i.e., the hypothalamic–pituitary–adrenal (HPA) axis and the sympathetic nervous system (SNS).Objective and hypotheses: The aim of the study was to examine i) the diurn...

hrp0082fc6.1 | Gonads & DSD | ESPE2014

Search for Genetic Defects in the Transcription Factor Genes FOXL2, FOXE1, BMP15, NOBOX, and GDF9 in Children, Adolescents and Young Adults With Premature Ovarian Insufficiency POI

Settas Nikolaos , Anapliotou Margarita , Deligeoroglou Euthimios , Kanavakis Emmanuel , Fryssira Eleni , Kanaka-Gantenbein Christina , Michala Lina , Dacou-Voutetakis Catherine , Creatsas George , Chrousos George P , Voutetakis Antonis

Background: Molecular defects are rarely detected in Premature ovarian insufficiency (POI) patients.Objective and Hypotheses: We hypothesized that the frequency of causative molecular defects could be higher in cases with early onset of POI. Moreover, the analysis of multiple genes in the same POI group could disclose co-existence of more than one molecular aberration.Method: In 25 subjects, aged 17.1±7 years at POI onset, bid...

hrp0082p1-d2-3 | Adrenals & HP Axis | ESPE2014

Transient Generalized Glucocorticoid Hypersensitivity: Clinical Manifestations, Endocrinologic Evaluation, and Transcriptomic Profile: the Potential Role of nf-κb

Nicolaides Nicolas C , Lamprokostopoulou Agaristi , Polyzos Alexandros , Kino Tomoshige , Katsantoni Eleni , Triantafyllou Panagiota , Christophoridis Athanasios , Katzos George , Drakopoulou Maria , Sertedaki Amalia , Chrousos George P , Charmandari Evangelia

Background: Transient generalized glucocorticoid hypersensitivity 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 molecular mechanisms that underlie its pathophysiology have not been elucidated as yet. Adenovirus 36 has been reported to cause obesity in various animal species.Objective and Hypotheses...

hrp0084p3-1254 | Programming & Misc. | ESPE2015

Untargeted Plasma Metabolomics in Prepubertal ICSI and Naturally Conceived Children Unravels Gender: Dimorphic Metabolic Trajectories After ICSI

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

Background: ICSI is an assisted reproduction technique (ART) mainly used to overcome male infertility. Nowadays, ICSI is employed frequently due to its high success rate, despite it being highly invasive (i.e. epigenetic risk). Recent studies in ART offspring show a higher incidence of cardio-metabolic risk than in naturally-conceived (NC) controls. Thus, in our prior untargeted metabolomic study between ICSI and NC prepubertal girls, we demonstrated insulin resistance in the ...

hrp0089p3-p279 | Multisystem Endocrine Disorders P3 | ESPE2018

Near Electromagnetic Fields – Induced Syndrome: Unsuspected and Newly Recognised

Geronikolou Styliani , Chrousos George , Kanaka-Gantenbein Christina

This present study investigates the impact of a common environmental hazard, the radiofrequency fields (RF), such as those regarding cell phones, cell phone base stations, wi-fi, portable phones (DECT), etc., as close to the body sources of exposure, on endocrine function. This is of importance, particularly for developing children, that have been and are exposed to this potential hazard. We performed analyses on endocrine assessments regarding stress, thyroid hand reproductiv...

hrp0082p3-d1-766 | Fat Metabolism & Obesity | ESPE2014

Positive Association of Pro-Oxidative Stress Markers with Adipose Mass in Pre- and Early-Pubertal Boys

Paltoglou George , Schoina Maria , Valsamakis George , Avloniti Alexandra , Chatzinikolaou Athanasios , Kambas Antonis , Draganidis Dimitris , Papassotiriou Ioannis , Margeli Alexandra , Salakos Nicolaos , Papagianni Maria , Kanaka-Gantenbein Christina , Chrousos George P , Fatouros Ioannis G , Mastorakos George

Background: Oxidative stress and adipocytokines are associated with obesity.Objective and hypotheses: To investigate the association of adipocytokines with markers of pro- and anti-oxidation at baseline and their change and correlations during acute aerobic exercise in normal weight and obese pre- and early-pubertal boys.Method: Fifty healthy pre- and early-pubertal, normal weight and obese boys, underwent a baseline blood sampling...

hrp0098p1-111 | Adrenals and HPA Axis 2 | ESPE2024

Investigating Changes in Plasma Aldosterone Concentrations Following ACTH Stimulation in Healthy Individuals: A Systematic Review and Meta-Analysis on the Influence of ACTH on Aldosterone Secretion

Stathori Galateia , Alexakis Dimitrios , Panagiotis Chrousos George , Paltoglou George

Adrenocorticotropic hormone (ACTH) in addition to renin-angiotensin- aldosterone axis is a potent aldosterone stimulator, suggesting a potential contribution in conditions associated with increased ACTH concentrations. This review aims to systematically review and synthesize the scientific evidence of alterations of plasma aldosterone concentrations in response to ACTH stimulation during the cosyntropin (Synacthen) test and define the range of aldosterone response. A systemati...

hrp0089fc1.4 | Adrenals & HPA Axis | ESPE2018

Whole Exome Sequencing in Patients with Primary Generalized Glucocorticoid Resistance Identifies a Novel TRIM28 Gene Mutation (p.R230X)

Sertedaki Amalia , Marinakis Nikos , Nicolaides Nicolas C. , Crousos George , Charmandari Evangelia

Introduction: Primary Generalized Glucocorticoid Resistance or Chrousos syndrome (CS) is a rare sporadic or familial disorder characterized by generalized, partial tissue insensitivity to glucocorticoids. Mutations of the NR3C1 gene, which encodes the human glucocorticoid receptor, have been identified in many but not all patients with CS.Objective: To identify novel genes related to CS in patients without NR3C1 gene mutations.<p cl...

hrp0089p1-p023 | Adrenals and HPA Axis P1 | ESPE2018

Associations Between Maternal and Offspring Hair Cortisol Concentrations and Child Behavioral Symptoms in Pairs of Children 18–48 Months Old and their Mothers With and Without Perinatal Mental Disorders

Agapaki Anna , Papagianni Fenia , Valavani Eleni , Zervas Ioannis , Mantziou Aimilia , Kanelli Stamatina , Spyropoulou Areti , Chrousos George , Pervanidou Panagiota

Introduction: Maternal perinatal mental disorders (PMDs) are associated with developmental and behavioral problems in the offspring, probably mediated by the programming of the limbic-hypothalamic-pituitary-adrenal (LHPA) axis. Increased or decreased cortisol concentrations during pregnancy and the perinatal period have been associated with alterations in the stress responses of the offspring and with child behavioral problems; however, such associations remain unclear.<p ...

hrp0086p2-p293 | Diabetes P2 | ESPE2016

Impact of Demographic Factors on Diabetic Ketoacidosis Occurrence at Type 1 Diabetes Onset in Childhood

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

Background: Diabetic Ketoacidosis (DKA) in newly diagnosed children with Type 1 Diabetes (T1D) has been associated in previous studies with several factors, such as age or season of diagnosis.Objective and hypotheses: The aim of the present study was to assess the impact of age, gender, birth order and seasonality in DKA occurrence in newly diagnosed T1D pediatric patients.Method: Data of children aged 0–14 years newly diagnos...