hrp0082p1-d1-235 | Thyroid | ESPE2014

A Nonsense Thyrotropin Receptor Gene Mutation (R609X) is Associated with Congenital Hypothyroidism and Heart Defects*

Cangul Hakan , Bas Veysel Nijat , Saglam Yaman , Kendall Michaela , Barrett Timothy G , Maher Eamonn R , Aycan Zehra

Background: Congenital hypothyroidism, one of the most important preventable causes of mental retardation, is a clinical condition characterized by thyroid hormone deficiency in newborns.Objective and hypotheses: Congenital hypothyroidism is most often caused by defects in thyroid development leading to thyroid dysgenesis. TSH receptor (TSHR) is the main known gene causing thyroid dysgenesis in consanguineous families with congenital hypothyroidism. In t...

hrp0084p2-200 | Adrenals | ESPE2015

A Novel Mutation (c.delG209) in the Proopiomelanocortin Gene in a Child with Early-onset Obesity

Cetinkaya Semra , Guran Tulay , Kurnaz Erdal , Keskin Meliksah , Sagsak Elif , Erdeve Senay Savas , Buonocore Federica , Aycan Zehra

Background: Proopiomelanocortin (POMC) deficiency is characterized by early-onset obesity, adrenal failure, red hair and pale skin. The first genetic mutation in the POMC gene was demonstrated in 1998. This disorder is rare, but has increased our insight into the important role of the leptin-melanocortin pathway in energy balance. POMC deficiency causes obesity due to the inadequate production of alpha and beta MSH from POMC, which normally activate the melanocortin 3 receptor...

hrp0094p2-69 | Bone, growth plate and mineral metabolism | ESPE2021

Evaluation of Admission Characteristics, Treatment and Follow-up Findings of Children with Primary Osteoporosis

Kizilcan Cetin Sirmen , Siklar Zeynep , Aycan Zehra , Ozsu Elif , Ceran Aysegul , Senyazar Gizem , Karaca Seda Erisen , Berberoglu Merih ,

Introduction: Primary osteoporosis (POP) is a rare and important problem in childhood that can cause serious skeletal deformities and morbidity. In this study, we aimed to reveal the spectrum of POP in childhood, and also to assess the effectiveness and safety of bisphosphonates in increasing BMD, reducing fractures, and improving quality of life.Method: Patients with POP and who received at least one course of pamidrona...

hrp0094p2-89 | Bone, growth plate and mineral metabolism | ESPE2021

Clinical Profile of Parathyroid Adenoma in Children and Adolescents: A single-center experience

Kizilcan Cetin Sirmen , Siklar Zeynep , Ozsu Elif , Aycan Zehra , Ceran Aysegul , Karaca Seda Erisen , Senyazar Gizem , Berberoglu Merih ,

Introduction: Parathyroid adenoma (PRAD) is less common than in adulthood, but its morbidity is higher in children. The typical presentation is incidentally discovered as asymptomatic hypercalcemia. We aimed to evaluate the clinical characteristics of PRAD and our clinical experience since the early disease is often asymptomatic.Method: From 2010-2020, all children diagnosed with PRAD at our institution ...

hrp0094p2-242 | Fetal, neonatal endocrinology and metabolism (to include hypoglycaemia) | ESPE2021

Long-term follow-up in a case with congenital hyperinsulinemic hypoglycemia with a novel p.Ser1389Pro mutation in ABCC8 gene

Karacan Kucukali Gulin , Karacan Kucukali Gulin , Savas Erdeve Senay , Ozalkak Servan , Bayramoglu Elvan , Keskin Meliksah , Aycan Zehra , Cetinkaya Semra ,

Introduction: Hyperinsulinemic hypoglycemia is one of the most common causes of severe and persistent hypoglycemia in neonates and children. Early diagnosis and appropriate treatment prevent brain damage due to recurrent hypoglycemia. Genetic examination often can guide the treatment. The most common affected genes are the ABCC8 and KCNJ11 genes, which encode the SUR1 and Kir6.2 KATP channels, respectively. Here, a neonate with a novel variant in AB...

hrp0095p1-591 | Thyroid | ESPE2022

Evaluation of Permanent and Transient Congenital Hypothyroidism in Cases Referred from National Neonatal Screening Program

Donbaloğlu Zeynep , Çetinkaya Semra , Aycan Zehra , Karacan Küçükali Gülin , Şakar Merve , Savaş Erdeve Şenay

Objective: The incidence of congenital hypothyroidism (CH) has increased worldwide. Lowering cut-off in screening programs has led to an increase in the rate of transient CH. We aimed to evaluate the rates of permanent and transient CH in cases referred from the screening program and to investigate the clinical and laboratory factors to predict the transient CH.Methods: 109 cases referred from the screening program to ou...

hrp0092p1-160 | Adrenals and HPA Axis (1) | ESPE2019

Serum fetuin-A and insulin levels in classic congenital adrenal hyperplasia

Kurnaz Erdal , Çetinkaya Semra , Özalkak Servan , Bayramoglu Elvan , Demirci Gülsah , Öztürk Hasan Serdar , Erdeve Senay Savas , Aycan Zehra

Background: Androgens play a pivotal role in non-reproductive tissues, such as the kidney, heart, and liver, as well as the pancreas. Since the androgen receptor is expressed in pancreas and liver cells, this raises the possibility that excess testosterone results in insulin hypersecretion, and in fetuin-A, a protein produced in the liver. However, whether fetuin-A and insulin levels are affected by androgens in classic congenital adrenal hyperplasia (CAH) due...

hrp0092p3-180 | Multisystem Endocrine Disorders | ESPE2019

APECED Syndrome in Childhood: Rare Clinical Presentations to Keep in Mind

Arasli Yilmaz Aslihan , Elmaoğullari Selin , Muratoğlu Şahin Nursel , Savaş Erdeve Şenay , Aycan Zehra , Çetinkaya Semra

Introduction: APECED Syndrome; is a rare, autosomal recessive disease caused by mutations in the autoimmun regulatuar AIRE gene on the chromosome 21. Although classical triad is mucocutaneous candidiasis, hypoparathyroidism and adrenal insufficiency; endocrine / non-endocrine involvement may also be seen. Possible involvement should be evaluated without any clinical signs. We report a case of APECED syndrome with autoimmune hypophysitis secondary to growth hor...

hrp0086p2-p176 | Bone & Mineral Metabolism P2 | ESPE2016

A Case: Hydrocephalus Secondary to Suprasellar Arachnoid Cyst with Reset Osmostat and Isolated GH Deficiency

Kurnaz Erdal , Aycan Zehra , Akdemır Ozısık Pınar , Keskin Meliksah , Bayramoglu Elvan , Muratoglu Sahin Nursel , Savas Erdeve Senay , Cetinkaya Semra

Background: Hyponatremia is defined as a serum sodium level below 135 mEq/l. It is associated with increased morbidity and mortality. Hyponatremia has many causes and can be classified as acute/chronic or hypo/hypo/euvolemic. The main rule in fluid and electrolyte disorders (and especially in hyponatremia) is excluding hypothyroidism and hypocortisolism and then making the correct diagnosis. Hypothyroidism and hypocorticolism can also cause euvolemic chronic hyponatremia but t...

hrp0084p2-410 | GH & IGF | ESPE2015

Response to GH Treatment in the Very Young with GH Deficiency

Cetinkaya Semra , Poyrazoglu Sukran , Aycan Zehra , Siklar Zeynep , Berberoglu Merih , Atay Zeynep , Bereket Abdullah , Ercan Oya , Mengen Eda , Demirel Fatma , Darcan Sukran , Darendeliler Feyza

Aim: Data on response to GH treatment in the very young children with GH deficiency is scarce. The aim of this study was to evaluate the growth response in such children in a national multicentre study and to analyse the factors affecting the growth response.Materials and methods: In this study, we retrospectively evaluated the files of GH deficiency patients who had started GH treatment between 0–3 years of age who were being followed in 14 differe...