hrp0089fc6.3 | Fat, Metabolism and obesity | ESPE2018

Role of PTEN in the Proliferation and Differentiation of Preadipocytes

Kirstein Anna , Kassner Franziska , Schmid Gordian L. , Handel Norman , Penke Melanie , Kiess Wieland , Garten Antje

Background/aim: The PTEN hamartoma tumor syndrome (PHTS) is an overgrowth syndrome caused mainly by germline mutations in the tumor suppressor PTEN. Patients are predisposed for the development of malignant and benign tumors. Children and adolescents with PHTS frequently develop single or multiple lipomas. PTEN antagonizes the phosphatidylinositide3-kinase/AKT/mechanistic target of rapamycin (PI3K/AKT/mTOR) pathway, which promotes proliferation and differentiation in ...

hrp0084fc5.1 | Endocrine Oncology/Turner | ESPE2015

Resveratrol Potentiates Growth Inhibitory Effects of Rapamycin in PTEN-deficient Lipoma Cells by Suppressing p70S6 Kinase Activity

Leipert Jenny , Kassner Franziska , Schuster Susanne , Handel Norman , Korner Antje , Kiess Wieland , Garten Antje

Background: Patients with PTEN (phosphatase and tensin homolog) hamartoma tumor syndrome and germ line mutations in PTEN frequently develop lipomatosis, for which there is no standard treatment. Rapamycin was shown to reduce the growth of lipoma cells with heterozygous PTEN deficiency in vitro, but concomitantly induced an up regulation of AKT phosphorylation.Objective and hypotheses: Since it was shown that resveratrol stabilizes PTEN,...

hrp0084fc-lb-3 | Late Breaking Abstracts | ESPE2015

Pharmacokinetic and Pharmacodynamic Studies of Topicon™ Mediated Patch Delivery of Insulin Glargine in a Streptozotocin-Induced Hairless Rat Model

Hsu Stephen , Mangleburg Carl , Yao Hua

Background: The Topicon™ patch is a needle-free novel platform technology developed to achieve truly passive transdermal delivery of insulin. Here we report pharmacodynamic (PD) and pharmacokinetic (PK) studies comparing needle injection (s.c.) vs Topicon™ mediated patch delivery of the insulin analog glargine (LANTUS®) in streptozotocin-induced hairless rats.Objective and hypotheses: We sought to develop a convenient, af...

hrp0092p1-162 | Adrenals and HPA Axis (1) | ESPE2019

Evaluation of Molecular Characteristics and Steroid Metabolomics in a Large Cohort of Children with 3β-Hydroxysteroid Dehydrogenase 2 Deficiency

Guran Tulay , Kara Cengiz , Yildiz Melek , Bitkin Eda C. , Haklar Goncagul , Lin Jen-Chieh , Gilligan Lorna C. , Barnard Lise , Keskin Mehmet , Anik Ahmet , Catli Gonul , Guven Ayla , Kirel Birgul , Tutunculer Filiz , Onal Hasan , Turan Serap , Akcay Teoman , Atay Zeynep , Baranowski Elizabeth S. , Yilmaz Gulay C. , Mamadova Jamala , Akbarzade Azad , Sirikci Onder , Aghayev AghaRza , Alkan Afra , Shackleton Cedric H.L. , Storbeck Karl H. , Baris Tugba , Arlt Wiebke , Chung Bon-Chu , Bereket Abdullah

Context: Deficiency of 3β-hydroxysteroid dehydrogenase 2 (3βHSD2) causes a very rare form of congenital adrenal hyperplasia (CAH) known as 3βHSD2 deficiency, which is a consequence of biallelic HSD3B2 gene defects. The estimated prevalence is less than 1/1,000,000 live births. Knowledge of comprehensive steroid metabolome patterns in 3βHSD2 deficiency is scarce.Objective: We aimed...

hrp0094p2-19 | Adrenals and HPA Axis | ESPE2021

Genetic analysis of paediatric primary adrenal insufficiency of unknown aetiology over 25 years

Buonocore Federica , Maharaj Avinaash , Qamar Younus , Koehler Katrin , Suntharalingham Jenifer P. , Chan Li F. , Ferraz-de-Souza Bruno , Hughes Claire R. , Lin Lin , Prasad Rathi , Allgrove Jeremy , Andrews Edward T. , Buchanan Charles R. , Cheetham Tim D. , Crowne Elizabeth C. , Davies Justin H. , Gregory John W. , Hindmarsh Peter C. , Hulse Tony , Krone Nils P. , Shah Pratik , Shaikh Mohamad G. , Roberts Catherine , Clayton Peter E. , Dattani Mehul T. , Thomas N. Simon , Huebner Angela , Clark Adrian J. , Metherell Louise A. , Achermann John C. ,

Introduction: Primary adrenal insufficiency (PAI) is a potentially life-threatening condition that requires appropriate diagnosis and treatment. The most common cause of PAI is congenital adrenal hyperplasia (CAH), but other well-established aetiologies include metabolic and autoimmune disorders, and physical damage. Mutations in more than 30 genes have now been associated with PAI, with considerable biochemical and phenotypic overlap. It is therefore importan...

hrp0097rfc6.2 | Pituitary, neuroendocrinology and puberty 1 | ESPE2023

Psychosocial Evaluation of Girls with Rapidly Progressive Puberty Presenting with Early Menarche

Yüksek Acinikli Kübra , Besci Ozge , Akın Kağızmanlı Gözde , Gündoğan Nazan , Unutmaz Güldal , Berkay Esen Ahmet , Alşen Güney Sevay , Korcan Demir Korcan , Böber Ece , Abacı Ayhan

Key words: early puberty, mood change, GnRH analogueIntroduction-Aim: In cases with early puberty, neuroendocrine, physical, and psychological changes are considered to result in several mood disorders. The aim of this research was to assess the mental problems of pubertal girls with rapidly progressive puberty (RPP) with menarche before the 10 years of age. To the best of our knowledge, there is no similar prospective c...

hrp0095p1-391 | Thyroid | ESPE2022

Biochemical Indicators of Euthyroid Sick Syndrome in Critically Ill Children

Besci Tolga , Besci Özge , Arslan Gazi , Ilgaz Hande , Prencuva Pınar , Özdemir Göktuğ , Abacı Ayhan , Demir Korcan

Purpose: This study aimed to determine the prevalence and predictors of Euthyroid Sick syndrome (ESS) in pediatric intensive care, and to establish a link between thyroid function tests and mortality.Methods: Between January 2015 and March 2020, children admitted to our pediatric intensive care unit (PICU) and tested for free triiodothyronine (fT3), free thyroxine (fT4), and thyrotropin (TSH) levels were included. Patien...

hrp0092p1-28 | Diabetes and Insulin | ESPE2019

Elevated Anti-tissue Transglutaminase Antibodies in Children Newly Diagnosed with type 1 Diabetes do not Always Indicate Celiac Disease

Paketçi Ahu , Armagan Coskun , Erbas İbrahim Mert , Demir Korcan , Abaci Ayhan , Böber Ece

Introduction: The prevalence of celiac disease is 5–10 times higher in patients with type 1 diabetes mellitus (DM) than in the general population. Therefore, celiac serology should be screened intermittently in type 1 DM patients. However, anti-tissue transglutaminase (anti-TTG) antibody elevation may be detected incidentally at the time of type 1 DM diagnosis and regress spontaneously during follow-up, without medical or dietary interventions.<p clas...

hrp0086p2-p493 | Fat Metabolism and Obesity P2 | ESPE2016

Melanocortin-4 Receptor Gene Mutations in a Group of Turkish Obese Children and Adolescents

Tunc Selma , Demir Korcan , Tukun F Ajlan , Topal Cihan , Hazan Filiz , Saglam Burcu , Nalbantoglu Ozlem , Yildiz Melek , Ozkan Behzat

Background: Melanocortin-4 receptor (MC4R) mutations are the most common known cause of monogenic obesity but there is no data for Turkish children.Objective: To determine the prevalence of MC4R mutations in a group of Turkish morbid obese children and adolescents.Method: MC4R gene was sequenced in 47 consecutive morbidly obese children and adolescents (28 girls and 19 boys, aged 1–18 years) who presented dur...

hrp0082p3-d2-720 | Diabetes (1) | ESPE2014

Anti-Cyclic Citrullinated Peptide Antibodies are not Frequent in Children with Type 1 Diabetes

Yildiz Melek , Isleten Figen , Demir Korcan , Celik Nilufer , Korkmaz Huseyin Anil , Tuglu Birsen , Elmas Ozlem Nalbantoglu , Ozkan Behzat

Background: Type 1 diabetes mellitus is characterized by presence of several organ specific autoantibodies. Anti-cyclic citrullinated peptide (anti-CCP) antibody is a promising marker of rheumatoid arthritis (RA) which is known to coincide with autoimmune diabetes. Presence of these antibodies was not investigated in children with type 1 diabetes.Objective and hypotheses: To evaluate presence of anti-CCP antibodies in children with type 1 diabetes compar...