hrp0097p1-40 | Diabetes and Insulin | ESPE2023

Neopterin and tryptophan pathways in children with type 1 diabetes: isoxanthopteridine as a marker of endothelial dysfunction

Evliyaoğlu Olcay , Özer Yavuz , Kıykım Ertuğrul , Serif Cansever Mehmet , Turan Hande , Bayramoglu Elvan , Ceyhun Emre , İşat Esra , Zübarioğlu Tanyel , Cigdem Aktuglu Zeybek Ayse

Introduct&idot;on: Type 1 diabetes (T1D) is a chronic autoimmune disease characterized by damage to β cells in the pancreas. Neopterins and indolamine 2,3-dioxygenase (IDO) activity, which is shown by the ratio of kynurenine to tryptophan, can be used as an indicator in the regulation of cellular immunity. Oxidative stress produced by xanthine oxidoreductase has been shown to be associated with vascular endothelial dysfunction. It uses the conversion of p...

hrp0097p2-269 | Late Breaking | ESPE2023

Are Serum MOTS-c Levels and MOTS-c m.1382A>C Polymorphism Related to Polycystic Ovary Syndrome?

Eroğlu Filibeli Berna , Dedemoğlu Fatima , Garipçin Pınar , Bulut Seyran , İşbilen Başok Banu , Kızıldağ Sefa , Dündar Bumin , Çatlı Gönül

Introduction: Mitochondrial-derived peptide (MOTS-c) is originated from the 12S ribosomal region of mitochondrial DNA. MOTS-c functions as an activator of AKT and AMPK, which are involved in the insulin signaling pathway. In experimental studies, MOTS-c administration was shown to reduce insulin resistance and obesity. Besides, MOTS-c levels were decreased and negatively correlated with insulin resistance in obese male children. In male cases, the MOTS-c</...

hrp0098p2-282 | Thyroid | ESPE2024

Thyroid hormone profile and autoimmunity in down syndrome

Günay Aylin , Helvacıoğlu Didem , Yavaş Abalı Zehra , Gürpınar Tosun Büşra , Kahveci Ahmet , Kurt İlknur , Keleştemur Elif , Tuğba Canbaz Aylin , Haliloğlu Belma , Güran Tülay , Bereket Abdullah , Turan Serap

Down syndrome (DS) is the most common chromosomal disorder in live births (1/1500-1/700) and caused by a meiotic nondisjunction (trisomy 21). DS is associated with an increased risk of thyroid disorders in addition to other systemic problems. In this study, we aim ed to investigate the thyroid hormone profiles and associated autoimmune diseases in DS.Material and Method: DS patients, aged 0-18 years, who were followed for thyroid problem...

hrp0095p1-300 | GH and IGFs | ESPE2022

Evaluation of the growth response of children with growth hormone deficiency according to peak growth hormone levels on provocative tests

Donbaloğlu Zeynep , Singin Berna , Acar Sezer , Bedel Aynur , Barsal Çetiner Ebru , Aydin Behram Bilge , Parlak Mesut , Tuhan Hale

Objective: We aimed to evaluate the relation between the peak growth hormone (GH) levels on provocative tests and response to recombinant human GH (rhGH) therapy in patients with GH deficiency (GHD).Methods: This was a cross-sectional, single-center, and retrospective study. A total of 518 patients who received rhGH therapy under the age of 16 in the Endocrinology Clinic of Akdeniz University Hospital between 1997 and 20...

hrp0095p1-332 | Growth and Syndromes | ESPE2022

Growth Hormone Therapy Experience in a Patient with Hypotonia Cystinuria Syndrome

Sarıkaya Emre , Berber Uğur , Gök Ebru , Kara Leyla , Gül Şiraz Ülkü , Hatipoğlu Nihal

Background: Hypotonia-Cystinuria Syndrome (HCS) is a rare autosomal recessive disease characterized by generalized hypotonia, nephrolithiasis, short stature, minor facial dysmorphism, hyperphagia, and rapid weight gain in late childhood. Microdeletion can be detected in part of the SLC3A1 and PREPL genes in these cases. Growth hormone deficiency is rarely seen in these patients and adequate growth can be achieved with growth hormone therapy.<p class="abste...

hrp0095p1-155 | Pituitary, Neuroendocrinology and Puberty | ESPE2022

Evaluation of the influence of the gonadotropin-releasing hormone agonist therapy on growth and body mass index in girls with idiopathic central precocious puberty

Donbaloğlu Zeynep , Bedel Aynur , Barsal Çetiner Ebru , Singin Berna , Aydın Behram Bilge , Tuhan Hale , Parlak Mesut

Objective: We aimed to examine the auxological findings of the girls diagnosed with idiopathic central precocious puberty (CPP) at the end of the Gonadotropin-releasing hormone analogs (GnRHa) treatment and to investigate the effect of related factors on the height gain of those patients.Methods: This study was designed as single-center, descriptive, cross-sectional retrospective study. A total of 43 patients who were di...

hrp0095p1-351 | Pituitary, Neuroendocrinology and Puberty | ESPE2022

Evaluation of Early Puberty in Patients with MC2R Deficiency

Karakilic Ozturan Esin , Bas Firdevs , Yavas Abali Zehra , Karaman Volkan , Poyrazoğlu Sukran , Oya Uyguner Zehra , Darendeliler Feyza

Background: Melanocortin receptor 2 (MC2R) is expressed in the adrenal cortex and has a major role in the control of the hypothalamic-pituitary-adrenal axis. It is reported that the ACTH receptor MC4R has an impact on premature adrenarche. The melanocortin signaling system is reported to have leptin mediated effect on the regulation of GnRH neuron activity and has an important role in the onset of puberty and fertility.Objective:...

hrp0095p1-598 | Thyroid | ESPE2022

Retrospective analysis and literature review of five cases of thyroid hormone resistance syndrome caused by THRB gene mutation

Zhang Lidan , Zhang Caiping , Chen Xiaoyan , Ye Lei , Lu Wenli , Dong Zhiya , Wang Wei , Ma Xiaoyu , Xiao Yuan

Objective: To summarize the clinical characteristics, genetics and follow-up data of five children with thyroid hormone resistance syndrome (RTH) and review the related literatures.Methods: The clinical data of the five children diagnosed with RTH in our hospital from 2018 to 2020 were retrospectively analyzed. Next-generation sequencing of the candidate genes related to thyroid diseases was performed using the blood col...

hrp0095p2-208 | Multisystem Endocrine Disorders | ESPE2022

Precocious puberty before and after the COVID-19 pandemic

Gök Ebru , Sarıkaya Emre , Kara Leyla , Berber Uğur , Gül Şiraz Ülkü , Hatipoğlu Nihal

Introduction: A novel coronavirus defined as coronavirus disease 2019 (COVID-19) was first detected in China at the end of 2019 and spread rapidly all over the world. As the covid 19 pandemic has led to changes in life all over the world, the prognosis of diseases have also been affected. This study presents how early puberty has been affected during the pandemic period.Method: A total of 210 subjects; 113 individuals (9...

hrp0092p2-81 | Diabetes and Insulin | ESPE2019

A de novo Pathogenic Heterozygous Mutation of the Insulin Receptor gene in a Patient with type A Insulin Resistance Syndrome

Sun Manqing , Wang Wei , Lu Wenli , Zhang Lidan , Dong Zhiya , Xiao Yuan , Ma Xiaoyu , Ni Jihong , Wang Defen

Background: Defects of the insulin receptor gene (INSR) can cause genetic syndromes associated with a wide diverse range of congenital insulin resistance from milder insulin-resistant diabetes mellitus (Type A insulin resistance syndrome, TAIRS) to leprechaunism (Donahue syndrome). Clinical features in TAIRS vary due to the severity of damage in INSR, precise diagnosis is challenging.Materials and Methods</stron...