hrp0095p1-99 | GH and IGFs | ESPE2022

Survey to Investigate Adherence to Growth Hormone Treatment in Children: The Impact of COVID-19 Pandemic

Eren Erdal , Cetinkaya Semra , Denkboy Ongen Yasemin , Tercan Ummuhan , Darcan Sukran , Turan Hande , Aydin Murat , Yavuz Yilmaz Fatma , Kilci Fatih , Sever Eklioglu Beray , Hatipoglu Nihal , Yuksek Acinikli Kubra , Orbak Zerrin , Camtosun Emine , Savas Erdeve Senay , Arslan Emrullah , Ercan, Feyza Darendeliler Oya

Introduction: Treatment adherence is crucial for the success of Growth Hormone (GH) therapy. Non-adherence rates have varied over a wide range from 5% to 80% in the literature. Several factors may have an impact on treatment adherence. Besides, with the COVID-19 pandemic that affected the whole world, there were problems with the hospital admission and routine controls of the patients who used GH treatment.Objective: The...

hrp0082fc5.3 | Neuroendocrinology | ESPE2014

Loss of Function Mutations in pnpla6 Cause Hypogonadotropic Hypogonadism due to Impaired LH Release from Pituitary Gonadotropes

Topaloglu Ali Kemal , Lomniczi Alejandro , Kretzschmar Doris , Dissen Gregory A , Damla Kotan Leman , McArdle Craig A , Koc A. Filiz , Hamel Ben C , Guclu Metin , Papatya Esra D , Eren Erdal , Mengen Eda , Gurbuz Fatih , Cook Mandy , Castellano Juan M , Kekil M. Burcu , Mungan Neslihan O , Yuksel Bilgin , Ojeda Sergio R

Background: Gordon Holmes syndrome (GHS) is characterized by cerebellar ataxia/atrophy and normosmic hypogonadotropic hypogonadism (nHH). The underlying pathophysiology of this combined neurodegeneration and nHH remains unknown.Patients and methods: We studied a cohort of multiplex families with GHS through autozygosity mapping and whole exome sequencing.Results: We identified patients from three independent families carrying loss-...

hrp0084p1-112 | Puberty | ESPE2015

Aetiological Spectrum and Clinical Characteristics of 129 Children with Gonadotropin Independent Precocious Puberty: A Nationwide Cohort Study

Atay Zeynep , Yesilkaya Ediz , Erdeve Senay Savas , Akin Leyla , Eren Erdal , Doger Esra , Aycan Zehra , Abali Zehra Yavas , Akinci Aysehan , Siklar Zeynep , Ozen Samim , Kara Cengiz , Tayfun Meltem , Tutunculer Filiz , Karabulut Gulcan Seymen , Karaguzel Gulay , Saglam Halil , Bideci Aysun , Kurtoglu Selim , Bereket Abdullah , Turan Serap , Sari Erkan , Cetinkaya Semra , Guran Tulay

Background: Gonadotropin independent precocious puberty (GIPP) is caused by a heterogenous group of disorders. With the exception of congenital adrenal hyperplasia (CAH), disorders causing GIPP are uncommon, and there are no studies evaluating the etiologic distribution of GIPP in a large cohort.Objective and hypotheses: To find out the relative frequencies of each etiological group in patients with non-CAH GIPP and also to evaluate the clinical and labo...

hrp0084p2-580 | Thyroid | ESPE2015

The Diagnostic, Treatment and Follow-Up Features of Childhood Thyroid Malignancies – A Preliminary Report

Bideci Aysun , Yesilkaya Ediz , Berberoglu Merih , Siklar Zeynep , Darcan Sukran , Ozen Samim , Bas Serpil , Doger Esra , Eren Erdal , Turan Serap , Akinci Aysehan , Demirel Fatma , Simsek Enver , Cetinkaya Semra , Bircan Iffet , Aydin Murat , Bober Ece , Sari Erkan , Hatipoglu Nihal , Tayfun Meltem , Saglam Halil , Ozbek Mehmet Nuri , Yildirim Ruken , Dundar Bumin , Cayir Atilla , Alagoz Engin , Atas Erman

Background: Thyroid cancer is a very rare malignancy of childhood. Approximately they account for 1.5% of all cancers before 15 years of age. In our country, this rate is %0.4 before 20 years of age.Aims and objectives: To analyses the clinical features and treatment results of children with thyroid malignancy in Turkey.Methods: In this multicentric and retrospective study the demographic and clinical characteristics of 124 childre...

hrp0095rfc11.6 | Late Breaking | ESPE2022

Genotype, phenotype characteristics and long-term follow-up of patients with Vitamin D Dependent Rickets Type IA (VDDR1a): A nationwide multicentre retrospective cross-sectional study

Cayir Atilla , Demirbilek Huseyin , Turkyılmaz Ayberk , Turan Serap , Bereket Abdullah , Darendeliler Feyza , Nuri Özbek Mehmet , Ünal Edip , Okdemir Deniz , Esen Ihsan , Eren Erdal , Yıldırım Ruken , Çetinkaya Semra , Cansu Sahin Kadriye , Anık Ahmet , Sena Dönmez Ayşe , Pınar Öztürk Ayşe , Bayramoğlu Elvan , Buyukinan Muammer , Gurbuz Fatih , Demir Korcan , Kılınç Suna , Betul Kaygusuz Sare , Çelmeli Gamze , Selvi Eklioglu Beray , Acar Sezer , Dursun Fatma , Turan Ihsan , Özkaya Beyhan , Kurnaz Erdal , Taner Baran Rıza , Özkan Behzat

Background: Vitamin D Dependent Rickets Type IA(VDDR1a) is an autosomal recessive disorder characterized by defects in the biosynthesis of its active form 1,25 dihydroxyvitamin D due to the mutations in the CYP27B1 gene encoding for the enzyme 1α-hydroxylase.Objective and hypotheses: To evaluatethe clinical characteristics, molecular genetics aetiology and long-term outcome of a large nationwide cohort of VDDR-Ia f...

hrp0084p1-144 | Miscelleaneous | ESPE2015

Primary Adrenal Insufficiency in Children without Congenital Adrenal Hyperplasia: Molecular and Clinical Characterisation of a Nationwide Cohort

Guran Tulay , Buonocore Federica , Saka Nurcin , Ozbek Mehmet Nuri , Aycan Zehra , Bereket Abdullah , Bas Firdevs , Darcan Sukran , Bideci Aysun , Turan Serap , Guven Ayla , Tarim Omer , Agladioglu Sebahat Yilmaz , Atay Zeynep , Ozen Samim , Demir Korcan , Akinci Aysehan , Aydin Banu Kucukemre , Buyukinan Muammer , Yuksel Bilgin , Yildiz Metin , Akcay Teoman , Kara Cengiz , Ozgen Tolga , Catli Gonul , Isik Emregul , Bolu Semih , Ozhan Bayram , Gurbuz Fatih , Ucar Ahmet , Demirbilek Huseyin , Abali Zehra Yavas , Doger Esra , Eren Erdal , Berberoglu Merih , Hacihamdioglu Bulent , Achermann John C.

Background: Primary adrenal insufficiency (PAI) is a potentially life-threatening condition that requires accurate diagnosis and urgent treatment. Congenital adrenal hyperplasia is the most common cause of PAI in children. Non-CAH causes of PAI are relatively rare. Although several molecular causes have been found, it is emerging that considerable overlap in the clinical and biochemical features of these conditions exists.Objective and hypotheses: We inv...

hrp0089rfc11.2 | Bone, Growth Plate & Mineral Metabolism 2 | ESPE2018

Nationwide Hypophosphatemic Rickets Study

Siklar Zeynep , Turan Serap , Bereket Abdullah , Abacı Ayhan , Baş Firdevs , Demir Korcan , Guran Tulay , Akberzade Azad , Bober Ece , Ozbek Mehmet Nuri , Kara Cengiz , Poyrazoğlu Şukran , Aydın Murat , kardelen Aslı , tarım Omer , Eren Erdal , Hatipoğlu Nihal , Buyukinan Muammer , Akyurek Nesibe , Cetinkaya Semra , Bayramoğlu Elvan , Eklioğlu Beray Selver , Ucakturk Ahmet , Abalı Saygın , Gokşen Damla , Kor Yılmaz , Unal Edip , Esen Ihsan , Yıldırım Ruken , Akın Onur , Cay Atilla , Dilek Emine , Kırel Birgul , Anık Ahmet , Catlı Gonul , Berberoğlu Merih

Aim: Hypophosphatemic rickets (HR) is a rare renal phosphate wasting disorder commonly related to X-linked form, caused by PHEX mutations and it treatment and follow-up is challenging due to imperfect treatment options. Here we presented nationwide data on HR with initial and follow-up data on the patients presented to the pediatric endocrinology clinics before the age of 18 years.Results: From 24 centers, 158 patients (93 male/65 female) were i...

hrp0097p1-547 | Pituitary, Neuroendocrinology and Puberty | ESPE2023

Evaluation of Electrocardiographic Changes in Girls Receiving Gonadotropin-Releasing Hormone Analogs for Central Precocious Puberty

Er Eren , Ata Aysun , Orgun Ali

Background and Aim: Gonadotropin-releasing hormone analogs (GnRHa’s) are the standard medical treatment for precocious puberty. Studies on their side effects in adults have shown that these drugs can cause changes in electrocardiography (ECG) along with some cardiovascular effects; however, the number of studies on children is limited. This study aims to investigate the effect of these drugs on ECG parameters in children diagnosed with central precocious puber...

hrp0097fc2.6 | Bone, Growth Plate and Mineral Metabolism | ESPE2023

Human breast milk-derived exosomes promote growth plate cell lines in vitro

Eren Simge , Kabataş Bilge , Ünsal Naz , Yıldırım Merve , Eren Olcay

Introduction: Human breast milk (HBM) contains various components with critical roles in supporting early human growth and development. HBM is highly enriched in miRNAs, short, non-coding RNAs of 18 to 25 nucleotides in length, involved in the development, differentiation, proliferation, metabolism, and death of cells and tissues. miRNAs have been linked to growth control, apoptosis, epigenetic modifications, developmental programming, stem cell differentiatio...

hrp0097rfc9.6 | Diabetes and insulin 2 | ESPE2023

Wharton jelly derived mesenchymal stem cells exosomes protect pancreatic beta cells from inflamation

Eren Simge , Yıldırım Merve , Kabataş Bilge , Ünsal Naz , Eren Olcay

Background: Type 1 diabetes is an autoimmune disease initiated by the invasion of pancreatic islets by immune cells that selectively kill the β cells. The loss of beta cells in Type I diabetes ultimately leads to insulin dependence and major complications that are difficult to manage by insulin injections. Regulation of immune response is a key strategy to control the autoimmunity in diabetic patients. Mesenchymal stem cells have been shown to have an app...