hrp0086p2-p322 | Diabetes P2 | ESPE2016

Clinical and Laboratory Characteristics of Children and Adolescents with Type 1 Diabetes Mellitus

Evliyaoglu Olcay , Ercan Oya , Saidov Said

Background: Prevelance of type 1 Diabetes Mellitus is increasing world wide and it is associated with multiple factors.Objective and hypotheses: We aimed to evaluate the clinical and laboratory characteristics of patients with type 1 DM.Method: Clinical records of 184 patients with diabetes (0–18 years) admitted between January 2010 and January 2014 were analysed retrospectively. Age and season at admission, type of admission,...

hrp0082p2-d2-272 | Adrenals & HP Axis (1) | ESPE2014

Timing of precocious pubarche in girls: Does a contemporary subgroup exist?

Tahmiscioglu Feride , Ercan Oya , Ozcabi Bahar , Evliyaoglu Olcay

Background: In 2012, a phenomenon of early isolated gonadotropin-independent thelarche among contemporary girls was reported.Objective and hypotheses: We wanted to evaluate whether a contemporary isolated early pubarche also exists. One way of looking into this is by investigating the age of pubarche in a group of girls with premature pubarche (PP) over time. If some girls had earlier pubarche, then, we would expect a subgroup (i.e. those younger than 8 ...

hrp0082p2-d2-597 | Thyroid (1) | ESPE2014

Thyroid Nodules in Childhood and Adolescence; Clinical, Radiologic and Etiological Evaluation

Evliyaoglu Olcay , Ozcabi Bahar , Tekin Ayse , Bucak Feride , Ercan Oya

Background: Thyroid nodules are less common in childhood but it has higher risk of malignancy. In this study, we aimed to evaluate children and adolescents with thyroid nodules, clinically, radiologically and histopathologically to determine etiologic distrubution.Method: Seventy-one patients (46 females) with the mean age of 10.41±5.03 (0.04–21) years with thyroid nodules were involved in this study. Patients were evaluated by their complaints...

hrp0086p1-p757 | Pituitary and Neuroendocrinology P1 | ESPE2016

Silent Corticotroph Adenoma with Adrenocortical Choristoma in an 11-Years Old Boy

Ercan Oya , Evliyaoglu Olcay , Sinoplu Ada Bulut , Mete Ozgur , Oz Buge

Background: Silent corticotroph adenomas are adenomas composed of corticotrophs but are different from corticotroph adenomas. Despite being silent, they show more aggressive behavior than other clinically nonfunctional adenomas. Adrenocortical choristomas in silent corticotroph adenomas (i.e. the presence of adrenocortical cells in the heterotopic location of the sella) were reported in three patients 16 years or older until now.Objective: Here we report...

hrp0082p2-d3-308 | Bone (2) | ESPE2014

A Case of Vitamin D Dependent Rickets Type 1 with a Novel Mutation in CYP27B1 (25-OH Vitamin D-1-α-Hydroxylase) Gene

Ozcabi Bahar , Evliyaoglu Olcay , Ercan Oya , Tahmiscioglu Feride , Jaferova Sevinc , Oruc Cigdem , Adrovic Amra

Background: Vitamin D dependent type 1 rickets is a rare, autosomal-dominantly inherited disorder due to an inactivating mutation in CYP27B1 (25-OH vitamin D-1-α-hydroxylase) gene. It is characterized by early onset of rickets with hypocalcemia. We report a boy admitted with symptoms of hypocalcemia and who carried a novel mutation in CYP27B1 gene.Case: The patient was admitted with tetany at the age of 12 months. When he had his first convulsion, h...

hrp0084p3-595 | Adrenals | ESPE2015

Three Siblings with Corticosterone Methyloxidase Deficiency Type 2 due to c.1175T>C Mutation +a Novel c.788T>A Mutation in CYP11B2 Gene

Ozcabi Bahar , Evliyaoglu Olcay , Ercan Oya , Bucak Feride Tahmiscioglu , Adrovic Amra , Ceylaner Serdar

Background: Corticosterone methyloxidase deficiency (CMOD) type 2 is an autosomal recessive disorder which presents with salt loss and failure to thrive in early childhood. We present three siblings with CMOD type 2 whose genetic analyses revealed a known c.1175T>C mutation (homozygous) and a novel c.788T>A mutation (homozygous) in CYP11B2 gene.Case 1: The patient was admitted with salt loss and failure to thrive at the age of 6 months; ...

hrp0084p3-935 | GH & IGF | ESPE2015

Do IGF1 Generation Test Results Predict 1st-Year Growth Response to GH Treatment in Idiopathic Short Stature?

Masoom Mohammad Ajmal , Ercan Oya , Bucak Feride Tahmiscioglu , Ozcabi Bahar Taskin , Evliyaoglu Olcay

Background: It is well-known that human GH (hGH) treatment increases growth rate in idiopathic short stature (ISS) in the short term which might predict the overall height gain. However,the fact that ISS might involve a heterogeneous group of individuals with individual benefits from hGH treatment makes the decision to treat or not to treat difficult.Objective and hypotheses: The aim of this study was to investigate retrospectively whether an IGF1 genera...

hrp0098p2-18 | Adrenals and HPA Axis | ESPE2024

Determination of Anti-Müllerian Hormone and Inhibin B Reference Ranges According to Pubertal Stages in Children and Adolescent Girls

Kaynar Ozge , Turan Hande , Tarcın Gurkan , Karakas Hasan , Evliyaoglu Olcay , Turan Volkan , Bayramoglu Elvan

Introduction and Objective: Puberty marks the transition from childhood to adulthood, initiated by the activation of the hypothalamic-pituitary-gonadal axis. Anti-Müllerian hormone (AMH) and inhibin B, both secreted by granulosa cells, play crucial roles in pubertal development and reflecting ovarian reserve. Establishing reference intervals for AMH and inhibin B across different pubertal stages is essential for assessing ovarian function and identifying ...

hrp0095p1-454 | Diabetes and Insulin | ESPE2022

Clinical and genetic evaluation of patients with maturity onset diabetes of the young (MODY) : Single center experience

Hande Turan , Bayramoglu Elvan , Gunes Kaya Didem , tarcin Gürkan , Bingöl Aydın Dilek , Ercan Oya , Evliyaoglu Olcay

Purpose: MODY is a monogenic diabetes with autosomal dominant inheritance that usually occurs in adolescence or young adulthood. It constitutes 1% of diabetes cases in childhood. The diagnosis of MODY is very difficult due to genetic heterogeneity, rarity, and clinical overlap with other diabetes types. In recent years, the diagnosis of MODY has become easier with genetic developments. On the other hand, misinterpretation of results can cause confusion. In thi...

hrp0089p2-p106 | Diabetes & Insulin P2 | ESPE2018

Congenital Hyperinsulinism: Clinical and Molecular Characteristics – Fluorine-18-L-Dihydroxyphenylalanine Positron Emission Tomography (F-DOPA PET) Scan Results – Treatment Responses and Short Term Outcomes of 5 Patients

Turan Hande , Dagdeviren Cakir Aydilek , Cayir Atilla , De Franco Elisa , Ellard Sian , Sonmezoglu Kerim , Ercan Oya , Olcay Evliyaoglu Saadet

Aim: The most common cause of persistent hypoglycemia and related brain damage in infancy is congenital hyperinsulinism (CHI), due to inappropriate secretion of insülin by pancreatic βcells. The most frequent and most serious mutations are activating mutations in ABBC8 or KCNJ11 genes. Genetic analyses, which might predict the type of lesion, performed in early period and 18f dopa pet scanning are very valuable for treatment choice and follow-up of the patients. In t...