hrp0097p1-201 | Adrenals and HPA Axis | ESPE2023

Molecular characterization of TNXA/TNXB chimeras in cases carrying deletion of the CYP21A2 gene: High incidence of chimeras identified.

Fylaktou Irene , Mertzanian Anny , Sertedaki Amalia , Kanaka-Gantenbein Christina

Introduction: CAH-X syndrome refers to a subset of Congenital adrenal hyperplasia (CAH) patients who display the hypermobility phenotype of Ehlers–Danlos syndrome (hEDS) due to the monoallelic/biallelic presence of a CYP21A2 deletion extending into the TNXB gene (chimeric TNXA/TNXB gene). To date, three different TNXA/TNXB chimeras have been described, CH-1 (presence of a TNXA-derived 120bp deletion in exon 35 of the <...

hrp0095p1-210 | Adrenals and HPA Axis | ESPE2022

Congenital Adrenal Hyperplasia due to 21-hydroxylase deficiency: the correlation of 17-hydroxyprogesterone stimulated concentrations with genotype for the identification of the molecular defect- A study of 526 cases

Fylaktou Irene , Mertzanian Anny , Charmandari Evangelia , Kanaka-Gantenbein Christina , Sertedaki Amalia

Introduction: Congenital adrenal hyperplasia (CAH) is an autosomal recessive disorder caused by impairment of one of the enzymes involved in the steroidogenesis pathway. CAH due to 21-hydroxylase deficiency (21-OHD) is attributed to mutations of the CYP21A2 gene and is distinguished into classic [salt wasting (SW), simple virilizing (SV)] and non-classic form. Herein we present a) the genetic investigation of 526 subjects with suspicion of 21-OHD in t...

hrp0095p1-189 | Thyroid | ESPE2022

Resistance to Thyroid Hormone β in an infant with a novel de novo mutation of the THRB gene

Sertedaki Amalia , Dolianiti Maria , Sakka Sofia , Siahanidou Sultana , Kanaka-Gantenbein Christina

Introduction: Resistance to Thyroid Hormone (RTH) is a clinical syndrome characterized by impaired end-organ responsiveness to Thyroid Hormone (TH). The cardinal features of this syndrome are elevated serum levels of free THs with normal or high TSH, often with goiter and no clear symptoms of thyrotoxicosis. Mutations in the Thyroid Hormone Receptor beta (THRB) gene constitute the most frequent cause of RTH, defined as RTHβ.<p class="abstext"...

hrp0092fc1.3 | Diabetes and Insulin Session 1 | ESPE2019

Next Generation Sequencing in Greek MODY Patients Increases Diagnostic Accuracy and Reveals a High Percentage of MODY12 Cases

Tatsi Elizabeth-Barbara , Sertedaki Amalia , Skorilas Andreas , Chrousos George , Kanaka-Gantenbein Christina

Introduction: Maturity Onset Diabetes of the Young (MODY) constitutes a genetically and clinically heterogeneous type of Monogenic Diabetes (MD), characterized by early onset of hyperglycemia, autosomal dominant inheritance and defect in β-cell insulin secretion. To date, 14 different MODY subtypes have been reported, each one with a distinct genetic etiology.Materials and Methods: We designed a NGS TGP of seven ...

hrp0089p1-p018 | Adrenals and HPA Axis P1 | ESPE2018

Young Lean Women with Evidence of Both Premature Adrenarche and Pubarche Display a Metabolic, Hormonal and Psychologic Profile that is Similar to that of their Peers with Polycystic Ovary Syndrome

Livadas Sarantis , Bothou Christina , Kanaka-Gantenbein Christina , Chiotis Dimitrios , Angelopoulos Nicholas , Macut Djuro , Chrousos George P

Context: The early activation of adrenal zona reticularis, denoted by increased circulating levels of adrenal androgens before the age of eight years in girls is called premature adrenarche (PA), while the concomitant appearance of pubic hair is termed premature pubarche (PP). Girls with PA-PP display an unfavorable metabolic, hormonal and psychologic profile, compared to their normal peers and are also at an increased risk of developing polycystic ovary syndrome (PCO...

hrp0089p1-p061 | Diabetes &amp; Insulin P1 | ESPE2018

The Prevalence of Autonomic and Peripheral Neuropathy in Children and Adolescents with Type 1 Diabetic Mellitus (T1D) and Its Association with the Homozygous Status of Z-2/Z-2 Polymorphism of the Aldose Reductase Gene (AKR1B1) in the Polyol Pathway

Kallinikou Dimitra , Tsentidis Charalampos , Kekou Kyriaki , Louraki Maria , Kanaka-Gantenbein Christina , Kanavakis Emmanouil , Karavanaki Kyriaki

Introduction: Diabetic neuropathy (DN) significantly reduces patients’ quality of life and increases cardiovascular death risk. However, it is the least recognized complication of diabetes. Z-2/Z-2 polymorphism of the aldose reductase (AKP1B1) gene increases the expression of the relative enzyme and is likely to contribute to DN expression.Purpose: To study the prevalence of DN in T1D children and adolescents and its associations with the h...

hrp0089p3-p106 | Diabetes &amp; Insulin P3 | ESPE2018

Reversibility of Early Acute Diabetic Neuropathy (DN) in Adolescents with Type 1 Diabetes Mellitus (T1D)

Louraki Maria , Kokotis Panagiotis , Katsalouli Marina , Kallinikou Dimitra , Kanaka-Gantenbein Christina , Karavanaki Kyriaki

Introduction: Diabetic neuropathy (DN) is a common complication of type 1 diabetes mellitus (T1D) with significant morbidity in adulthood. The association between DN with long term poor metabolic control is well established. However, acute painful DN may present early in the course of the disease and may be reversible.Case presentation: A female adolescent, aged 12 years, with a T1D duration of 9 months, presented with acute metabolic derrangement (HbA1c...

hrp0089p1-p096 | Fat, Metabolism and Obesity P1 | ESPE2018

Kisspeptin and the Genetic Obesidome

Geronikolou Styliani , Pavlopoulou Athanassia , Albanopoulos Konstantinos , Cokkinos Dennis , Kanaka-Gantenbein Christina , Chrousos George

Background: Kisspeptin (encoded by the KISS1 gene in humans), originally described as a puberty onset regulating neuropeptide, is involved in many homeostatic systems, including nutrition status, glucose homeostasis, locomotor activity, etc. Thus, in today’s obesity epidemic, kisspeptin is gaining increasing interest as a research target.Aim: To construct an updated interactome of genetic determinants of obesity, including the kisspeptin si...

hrp0089p2-p155 | Fat, Metabolism and Obesity P2 | ESPE2018

Associations between Body Fat Mass and Internalizing and Externalizing Behaviors and Anxiety in Children and Adolescents

Christaki Eirini , Bastaki Despoina , Valavani Eleni , Kanaka-Gantenbein Christina , Bosciero Dario , Chrousos George , Pervanidou Panagiota

Introduction: Body composition analysis is a painless, bloodless and highly informative method of assessing health indicators that can be used extensively in the pediatric population. This is particularly important granted that the prevalence of childhood obesity has been increasing at a fast pace worldwide. Increased adiposity in children and adolescents is an important issue for children’s growth and psychologic development. Assessing the psychosocial status of children...

hrp0089p2-p179 | Fat, Metabolism and Obesity P2 | ESPE2018

Body Composition Parameters, Systemic Inflammation and Metabolic Syndrome Manifestations in Children and Adolescents

Christaki Eirini , Pervanidou Panagiota , Bastaki Despoina , Valavani Eleni , Kanaka-Gantenbein Christina , Boschiero Dario , George Chrousos

Introduction: Increased adiposity has been associated with smoldering systemic inflammation and metabolic syndrome manifestations, leading to further morbidity by increasing the risk for type 2 diabetes mellitus and cardiovascular disease in adults. Similar analyses have not been performed systematically in children and adolescents.Hypothesis: This study investigates the interrelations between body composition parameters and indices of inflammation and m...