hrp0084p3-828 | Fat | ESPE2015

Long-Term Effects of a Ketogenic vs a Hypocaloric Diet in Children and Adolescents with Obesity

Partsalaki Ioanna , Karvela Alexia , Spiliotis Bessie E

Background: The prevalence of childhood obesity is high worldwide and predisposes to adult obesity and metabolic disorders. Many dietary approaches have been proposed to reduce this prevalence, but no single diet has proven to be superior to others in terms of long-term weight loss maintenance in children.Objective and hypotheses: To evaluate and compare long-term body weight changes among obese children and adolescents who had lost at least 10% of their...

hrp0082p1-d2-114 | Fat Metabolism & Obesity (1) | ESPE2014

Pro-Inflammatory (M1) and Anti-Inflammatory (M2) Profiles in Adipose Tissue of Lean and Obese Children and Adolescents

Karvela Alexia , Avgeri Aikaterini , Vlotinou Eleni D , Georgiou George , Papachristou Dionysios J , Spiliotis Bessie E

Background: Childhood obesity predisposes to metabolic disorders. Low grade inflammation of adipose tissue (AT) associated with macrophage infiltration may lead to metabolic complications. Two macrophage activation states M1 (pro-inflammatory) and M2 (anti-inflammatory) exist in AT with surface markers CD40 (M1), CD206 (M2) and CD163 (M2). M1 polarization correlates with metabolic complications.Objective and hypotheses: To study the expression of CD40, C...

hrp0082p2-d1-363 | Fat Metabolism & Obesity | ESPE2014

Novel Uncoupling Protein 1 Expression in White Adipocytes of Subcutaneous Abdominal Adipose Tissue in Children and Adolescents: A Protective Mechanism for Metabolic Equilibrium?

Karvela Alexia , Avgeri Aikaterini , Vlotinou Eleni D , Georgiou George , Papachristou Dionysios J , Spiliotis Bessie E

Background: Morbid childhood obesity predisposes to metabolic disorders such as diabetes type 2. In mice, heat-producing ‘brown-like’ (beige) adipocytes can suppress weight gain and metabolic disease through the action of uncoupling protein 1 (UCP1) localized in the mitochondria.Objective and hypotheses: To study the expression of UCP1 in the adipose tissue of lean&obese children and adolescents.Method: Paraffin embed...

hrp0084fc8.2 | Obesity - Basic | ESPE2015

Apoptosis Inhibitor of Macrophages: an Anti-Inflammatory Adipocyte Factor in Mild Adolescent Obesity?

Karvela Alexia , Avgeri Aikaterini , Vlotinou Eleni D , Georgiou George , Papaxristou Dionysios , Miyazaki Toru , Spiliotis Bessie E

Background: Adipose tissue (AT) in obesity is characterized by low grade inflammation. The apoptosis inhibitor of macrophages (AIM; also called CD5L) is incorporated into adipocytes leading to increased lipolysis. Excess AIM-dependent lipolysis induces adipose tissue macrophage recruitment. M1 (proinflammatory) macrophage infiltration, with surface marker CD40, correlates with metabolic complications.Objective and hypotheses: To study serum levels and AT...

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...

hrp0092p1-190 | Diabetes and Insulin (1) | ESPE2019

Periodontal Disease Relates to Diabetes Control in Children and Adolescents with Type 1 Diabetes

Ports Emilija , Pena Alexia , Allen Gabrielle , Gue Sam , Couper Jennifer

Background: Obese children with and without Type 2 diabetes have periodontal disease that relates to systemic inflammation. There is limited data on periodontal disease in children with Type 1 diabetes (T1D).Aim: We aimed to assess periodontal disease markers and its determinants in children and adolescents with T1D.Materials and Methods: Cross-sectional study including 73 children...

hrp0097rfc7.2 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2023

International Evidence-Based Guidelines for PCOS 2023: Recommendations in Adolescent Girls

Witchel Selma , Pena Alexia , Hoeger Kathy , Oberfield Sharon , Teede Helena

Objective: The original consensus-based Rotterdam criteria, now evidence-based criteria, is recommended for the diagnosis of PCOS in adult women. These criteria state that PCOS can be diagnosed when two of three major criteria (anovulatory cycles, clinical/biochemical hyperandrogenism, and polycystic ovary morphology or elevated AMH levels) are present and other potential etiologies have been excluded. Use of these criteria in adolescent girls is problematic b...

hrp0097p2-159 | Diabetes and Insulin | ESPE2023

Glucose monitoring systems in children and adolescents with type 1 diabetes and expectations from their use

Karabouta Zacharoula , S Benioudakis Emmanouil , Bisbinas Alexia , Arvanitaki Theodosia

Introduction: Continuous Glucose Monitoring Systems(CGM), including real-time(rtCGM) or intermittently Ssanned CGM(isCGM, flash technology) are evolving technologies that can help both healthcare professionals and families to improve glycaemic control in children and adolescents with diabetes mellitus. The technology offers the possibility of monitoring glucose in real time or on demand through the interstitial fluid, contributing to the improvement of glycaem...

hrp0089fc12.6 | Diabetes and Insulin 2 | ESPE2018

Persistent Beneficial Effects of Metformin in Children and Adolescents with Type 1 Diabetes: Adelaide Metformin Randomized Controlled Trial Follow Up

Maftei Oana , Couper Jennifer , Anderson Jemma , Ricci Peter , Gent Roger , Giles Lynne , Pena Alexia

Puberty is a critical period for the development and acceleration of vascular complications in Type 1 diabetes (T1D). We have shown that metformin in addition to insulin improves vascular smooth muscle function and HbA1c in T1D children over 12 months (1). We aimed to determine if children with T1D who received metformin in a randomized controlled trial (RCT) [Trial registration ACTRN126110001148976] have a sustained vascular function improvement 3 years after ceasing metformi...