hrp0092p3-235 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Leydig Cell Hypoplasia in Three Siblings in the Same Family

Doneray Hakan , Ozden Ayse , Yakar Omer

Background: Leydig cell hypoplasia (LCH) is a rare disease and one of the causes of male disorder of sexual differentiation (DSD). Inactivating mutations in the luteinizing hormone/chorionic gonadotropin receptor (LHCGR) gene can produce LCH. In this poster, we present three siblings with LCH based on the clinical and laboratory findings and the molecular diagnosis.Cases: A seven-year-old child was brought to our hospita...

hrp0089p3-p011 | Adrenals and HPA Axis P3 | ESPE2018

Severe Hyponatraemia with Absence of Hyperkalaemia in a Patient with Addison’s Disease

Doneray Hakan , Ozden Ayse , Kizilelma Nagihan Erol

Objective: Autoimmunity of the adrenal gland, also known as Addison’s disease, is characterised by cell mediated immune destruction of the adrenal cortex. We present a child with Addison’s disease who has severe hyponatraemia and normokalemia, which led to an inappropriately low index of suspicion initially at presentation.Case: A 12-year-old boy diagnosed with adrenal deficiency was admitted to hospital with 2 weeks of vomiting, fatigue and we...

hrp0089p3-p234 | Growth & Syndromes P3 | ESPE2018

Hepatic Glycogen Synthasedeficiency Associated with Growth Hormone Deficiency: A Case Report

Doneray Hakan , Ozden Ayse , Tosun Ilker

Objective: Type 0 glycogen storage disease (GSD0) is caused by deficiency of the hepatic isoform of glycogen synthase. Growth hormone deficiency in this disorder has not been reported.Case: A two-year old girl who had suffered from occasional morning convulsions was admitted to our clinic. Her length and body weight were measured as 80 cm (−2.4 S.D.) and 11.3 kg (−1.3 SD), respectively. Physical examination was unremarkable. Me...

hrp0086p2-p862 | Syndromes: Mechanisms and Management P2 | ESPE2016

Dopamine Beta-Hydroxylase Deficiency Leading to Growth Hormone Deficiency

Doneray Hakan , Ozden Ayse , Yesilcibik Remziye Seda

Background: Dopamine beta-hydroxylase (DBH) deficiency is characterized by lack of sympathetic noradrenergic function. Affected individuals exhibit profound deficits in autonomic regulation of cardiovascular function. DBH deficiency is a congenital disorder; however, the diagnosis is not generally recognized until late childhood. In this report, we present a case with DBH deficiency leading to growth hormone deficiency.Case: A ten year old girl who has b...

hrp0092p3-61 | Diabetes and Insulin | ESPE2019

The Effect of Fibroblast Growth Factor 23 on Serum Phosphorus Level in Children with Diabetic Ketoacidosis

Doneray Hakan , Ozay Mustafa , Ozden Ayse , Ozturk Nurinnisa , Orbak Zerrin

Aim: The pathophysiology of developing hypophosphatemia in children with diabetic ketoacidosis (DKA) has not been sufficiently elucidated. Fibroblast Growth Factor 23 (FGF23) is a hormone that causes phosphate excretion from the kidneys. The increase of FGF23 in children with DKA may explain the pathophysiology of hypophosphatemia in these children. The aim of our study was to investigate the effect of serum FGF23 on serum phosphorus level in children with DKA...

hrp0089p3-p096 | Diabetes & Insulin P3 | ESPE2018

Serum Trace Element Levels in Children Presenting with Diabetic Ketozis and Diabetic Ketoacidosis: A Longitudinal Controlled Study

Doneray Hakan , Gurbuz Kadri , Ozden Ayse , Gul Mehmet Ali , Orbak Zerrin

Objective: There have been very few studies, with contradictory results, on the serum trace elements in children and adolescents presenting with diabetic ketosis and diabetic ketoacidosis due to type-1 diabetes mellitus. The objective of this longitudinal controlled study was to determine serum trace element status including selenium (Se), zinc (Zn), copper (Cu), manganese (Mn), chrome (Cr), and cobalt (Co) in type-1 diabetic children and adolescents presenting with diabetic k...