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...

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...

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 ...

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...

hrp0086p2-p498 | Fat Metabolism and Obesity P2 | ESPE2016

A Comprehensive and Multidisciplinary Management Plan is Extremely Effective at Reducing the Prevalence of Overweight and Obesity in Childhood and Adolescence

Genitsaridi Sofia , Karampatsou Sofia , Papageorgiou Ifigeneia , Papadopoulos Georgios , Farakla Ioanna , Koui Eleni , Georgiou Alexandra , Romas Stamatis , Terzioglou Eleni , Papathanasiou Chryssanthi , Kassari Penio , Giannios Christos , Nicolaides Nicolas C , Manios Yannis , Charmandari Evangelia

Background: Obesity in childhood and adolescence represents a major health problem of our century, and accounts for a significant increase in morbidity and mortality in adulthood. In Greece, more than 30–35% of children and adolescents are overweight or obese.Objective and hypotheses: To investigate the effectiveness of a comprehensive and personalized multidisciplinary management plan in reducing the prevalence of overweight and obesity in childhoo...

hrp0095p1-358 | Pituitary, Neuroendocrinology and Puberty | ESPE2022

Pathogenic and Low-Frequency genetic determinants in children with Central Precocious Puberty

Fanis Pavlos , Toumba Meropi , A Tanteles George , Iasonides Michalis , C Nicolaides Nicolas , Nicolaou Stella , Kyriakou Andreas , Neocleous Vassos , A Phylactou Leonidas , Skordis Nicos

Background: Central precocious puberty (CPP) due to premature activation of GnRH secretion results in early epiphyseal fusion and to a significant compromise in the achieved final adult height as well as psychological consequences. So far only a limited number of genetic determinants have been associated with the pathogenesis in children with CPP. In this original research, rare sequence variants in MKRN3, DLK1, KISS1, and KISS1R genes were i...

hrp0097p1-152 | Pituitary, Neuroendocrinology and Puberty | ESPE2023

The awakening of the hypothalamic-pituitary-gonadal axis in the post-COVID era; the Greek experience.

Hatziagapiou Kyriaki , Anargyros Vasilakis Ioannis- , Binou Maria , Dolianiti Maria , C. Nicolaides Nicolas , Zoumakis Emmanouil , Papathanasiou Chryssanthi , Gkougkouli Eleni , Barouti Konstantina , Kanaka-Gantenbein Christina , D. Sakka Sophia

Background: Puberty onset results from the interplay between genetic and environmental factors. During COVID-19 pandemic, children experienced epidemic-related changes, such as stress, sedentary lifestyle, excessive use of electronic devices, all leading to weight gain.Objective: The aim of our study is to retrospectively evaluate the incidence of premature activation of the hypothalamic-pituitary-gonadal axis, as eviden...

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 ...

hrp0086p1-p5 | Adrenal P1 | ESPE2016

Whole Exome Sequencing in Patients with Primary Generalized Glucocorticoid Resistance, who did not have Mutations in the NR3C1 Gene

Sertedaki Amalia , Polyzos Alexandros , Nicolaides Nicolas , Thanos Dimitris , Charmandari Evangelia

Background: Primary generalized glucocorticoid resistance (PGGR) is a rare, familial or sporadic condition, characterized by generalized, partial tissue insensitivity to glucocorticoids. The molecular basis of this condition has been ascribed to mutations in the NR3C1 (human glucocorticoid receptor, hGR) gene, which impair the molecular mechanisms of hGR action and decrease tissue sensitivity to glucocorticoids. However, a considerable number of patients with PGGR do ...