hrp0086fc9.3 | Pathophysiology of Disorders of Insulin Secretion | ESPE2016

Gastrointestinal Dysmotility and Pancreatic Exocrine Insufficiency as Newly Recognised Possible Features in Two Siblings with Donohue Syndrome

Kostopoulou Eirini , Shah Pratik , Semple Robert , Ahmad Noman , Hussain Khalid

Background: Donohue syndrome is a rare congenital syndrome of insulin-resistance and abnormal glucose homeostasis, caused by mutations in the insulin receptor (INSR) gene. It is characterized by specific phenotypic and clinical features and the diagnosis is based on clinical, biochemical and genetic criteria.Case reports: We report two siblings with Donohue syndrome with typical dysmorphic features and multiple clinical and biochemical characteristics. G...

hrp0092p3-48 | Diabetes and Insulin | ESPE2019

Oral Glucose Tolerance Test (OGTT) as a Useful Tool for Early Diagnosis of Type 2 Diabetes Mellitus and Prediction of Metabolic Risks in Children and Adolescents

Kostopoulou Eirini , Tikka Maria , Rojas Gil Andrea Paola , Partsalaki Ioanna , Spiliotis Bessie

Objective: Type 2 Diabetes Mellitus(T2DM)and obesity represent two major health hazards in children and adolescents, with rising prevalence. Several markers have been developed in order to diagnose T2DM and detect potential metabolic abnormalities.The objective of the study was to examine glucose tolerance in Greek children and adolescents and the differences in the glucose, insulin and c-peptide response curves between male and female children and adolescents...

hrp0092p3-68 | Diabetes and Insulin | ESPE2019

Seasonal Variation and Epidemiological Parameters in Children from Western Greece with Type 1 Diabetes Mellitus (T1DM)

Kostopoulou Eirini , Papachatzi Eleni , Skiadopoulos Spyros , Rojas-Gil Andrea-Paola , Spiliotis Bessie

Introduction: A positive correlation between the onset of T1DM and winter has been suggested by studies conducted in different countries.Objective: To investigate the seasonal variation of T1DM diagnosis and additional epidemiological parameters in children from Western Greece diagnosed with T1DM.Methods: 105 patients, 44 males and 61 females, aged 1 to 16 years (mean: 8.2±4 y...

hrp0089fc12.2 | Diabetes and Insulin 2 | ESPE2018

Apoptosis and Oxidative Stress Markers During the Oral Glucose Tolerance Test (OGTT)

Gil Andrea Paola Rojas , Katsa Maria Efthymia , Tzortzis Nomikos , Ioannidis Anastasios , Kostopoulou Eirini , Spiliotis Bessie E

Background: In adults, insulin resistance is associated with vascular damage and progressive loss of the endothelial protective functions. Additionally, it further complicates the micro- and macro- vascular environment through increasing oxidative stress and inflammation.Aim: The purpose of this study was to evaluate how apoptosis and antioxidant markers are correlated with biochemical markers in children, during the glucose tolerance te...

hrp0084p2-402 | GH & IGF | ESPE2015

The Involvement of the Epidermal Growth Factor Receptor in the Successful GH Signalling and the Role of p21 in the Negative Regulation of the GH/GHR and EGF/EGFR Pathways, in GH Transduction Defect

Kostopoulou Eirini , Gil Andrea Paola Rojas , Karvela Alexia , Spiliotis Bessie Eugenia

Background: GH transduction defect (GHTD) is characterised by severe short stature and impaired STAT3 phosphorylation, which is overcome by simultaneous induction of GHTD fibroblasts with 200 ng/ml GH and short interference mRNA CIS (GH200/siRNA) or with 1 000 ng/ml GH (GH1000) and is clinically expressed with ‘catch-up’ growth after rhGH treatment.Objective and hypotheses: The involvement of epidermal growth factor receptor (EGFR) in the succe...

hrp0084p2-404 | GH & IGF | ESPE2015

The Role of β-TrCP, an E3 Ubiquitin Ligase, in the Signalling of the GH and Epidermal Growth Factor Pathways in Growth Hormone Transduction Defect

Kostopoulou Eirini , Gil Andrea Paola Rojas , Karvela Alexia , Spiliotis Bessie Eugenia

Background: epidermal growth factor (EGF) stimulates cell growth and differentiation through its receptor EGFR. Cross-talking between the GH and EGF signaling pathways is important for normal cellular development. GH transduction defect (GHTD), a clinical disorder characterized by impaired STAT3 phosphorylation due to excessive GHR degradation, is caused by over-expression of the E3 ubiquitin ligase, CIS.Induction of GHTD fibroblasts with 200 ng/ml hGH (GH200) and silencing mR...

hrp0094p1-69 | Diabetes B | ESPE2021

Oxidized lipid-associated protein damage in children and adolescents with type 1 diabetes mellitus: new diagnostic/prognostic clinical markers.

Kostopoulou Eirini , Kalaitzopoulou Electra , Papadea Polyxeni , Skipitari Marianna , Gil Andrea Paola Rojas , Spiliotis Bessie , Georgiou Christos ,

Background: Type 1 diabetes mellitus (DM1), a chronic metabolic disorder of autoimmune origin, has been associated with oxidative stress (OS), which plays a central role in the onset, progression and long-term complications of DM1. The markers of OS lipid peroxidation products, lipid hydroperoxides (LOOH), and also malondialdehyde (MDA) and thiobarbituric reactive substances (TBARS) that oxidatively modify proteins (Pr) (i.e., PrMDA and PrTBARS, respectively),...

hrp0097rfc8.1 | Fat, metabolism and obesity 2 | ESPE2023

A novel heterozygous likely pathogenic variant in GNB1 causing hyperphagia, severe early onset obesity and neurodevelopmental disorder

Karantza Maria , Hun Seo Go , Hyun Seong-In , Lee Hane , Kitsiou Sophia , Michala Lina , Kostopoulou Eirini

The proband is a 12 yr old Caucasian European girl with grade 3 obesity, developmental delay and hyperphagia. She was born at term via an uncomplicated pregnancy and exhibited neonatal hypotonia, difficulty feeding, failure to thrive and delayed attenuation of milestones. At the age of 2 years she started developing hyperphagia and rapid excessive weight gain. Molecular analysis for Prader Willi syndrome and array CGH were negative. At the age of 10 yrs she was diagnosed with ...

hrp0095p1-436 | Diabetes and Insulin | ESPE2022

Association of the apoptotic markers Apo1/Fas and cCK-18 and the adhesion molecule ICAM-1 with Type 1 diabetes mellitus in children and adolescents.

Kostopoulou Eirini , Efthymia Katsa Maria , Ioannidis Anastasios , Foti Maria , Dimopoulos Ioannis , Spiliotis Bessie , Paola Rojas Gil Andrea

Introduction: Type 1 diabetes mellitus (T1DM) is characterized by insulin-producing pancreatic β-cells loss. Apo1/Fas, a glycosylated surface protein, is implicated in maintaining homeostasis of the immune system. Cytokeratin-18 (cCK-18) is a predictive marker of liver disorders in T2DM. Intercellular adhesion molecule-1 (ICAM-1) is considered a candidate gene for susceptibility to diabetes mellitus. Aim: To investigate the possible role of Apo1/Fas, cCK-...

hrp0089p1-p240 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P1 | ESPE2018

Serum Anti-Mullerian Hormone (AMH) concentrations and Reduced Appendix Testis Estrogen Receptor Expression in Cryptorchidism

Panagidis Antonios , Kourea Helen , Sinopidis Xenophon , Kostopoulou Eirini , Rojas-Gil Andrea Paola , Skiadopoulos Spyridon , Georgiou George , Spiliotis Bessie E.

Objective: AMH causes fetal paramesonephric duct regression and is involved in testicular development and function. Sertoli cell AMH remains high during childhood until puberty. The appendix testis (AT), a remnant of the paramesonephric duct, contains both androgen and estrogen receptors. AT androgen receptors have been reported to play a role in embryonic testicular descent. The AT is commonly resected during orchiopexy and abdominal surgery as possible torsion in the future ...