hrp0084p3-1008 | Growth | ESPE2015

Presenting Characteristics, Auxological, and Aetiologic Evaluation of 364 Patients with GH Deficiency

Ozbek Mehmet Nuri , Baysal Birsen , Tanriverdi Sibel , Deniz Ahmet , Oncel Kahraman , Ocal Murat , Baran Riza Taner , Demirbilek Huseyin

Background: GH deficiency (GHD), can either be isolated (IGHD) or part of multiple pituitary hormone deficiency (MPHD), is a pituitary hormone disorder that manifests with short stature.Objective and hypotheses: To evaluate the presenting characteristics, auxological and etiologic factors of GHD in a large cohort from a single tertiary paediatric endocrine centre.Methods: Hospital files of patients followed with GHD deficiency at D...

hrp0084p3-1229 | Thyroid | ESPE2015

Euthyroid Sick Syndrome in Children Presenting with Diabetic Ketoacidosis

Baran Riza Taner , Demirbilek Huseyin , Dundar Munevver , Aydin Mulkiye , Demir Remezan , Karatas Mustafa , Tas Funda , Oncel Kahraman , Ozbek Mehmet Nuri

Background: Euthyroid sick syndrome (ESS), also known as non-thyroidal illness or low T3 syndrome, is defined as low T3, low/normal T4 and inability of rise in TSH due to extrathyroidal diseases. Any condition resulting stress such as infectious diseases, sepsis, metabolic disorders and severe malnutrition can associate to ESS. Patients presented with type 1 diabetes mellitus (T1DM) are usually being screened for other autoimmune diseases inclu...

hrp0094p1-67 | Diabetes B | ESPE2021

The Molecular Genetic Etiology by Whole Exome Sequence Analysis in Cases With Familial Type 1 Diabetes Mellitus without HLA Haplotype Predisposition or Incomplete Predisposition

Cem Yılmaz ğur , Evin Ferda , Onay Huseyin , Ozen Samim , Darcan Şukran , Gokşen Damla ,

Introduction: Family history is observed in approximately 10% of the cases with type 1 diabetes mellitus (T1DM). The most important gene that determines susceptibility is the human leukocyte antigen complex (HLA) on chromosome 6. In HLA genes; specific combinations of alleles at DR3, DR4, DRB1, DQA1 and DQB1 locus either predispose or protective for T1DM. In this study, we aimed to investigate the molecular genetic etiology by whole exome sequence (WES) analys...

hrp0097rfc14.1 | Late Breaking | ESPE2023

Clinical characteristics of patients presented with primary adrenal insufficiency due to a p.R451W mutation in the CYP11A1 gene

Çayır Atilla , Demirbilek Huseyin , Nuri Ozbek Mehmet , Kurt lknur , Karaoglan Murat , Albayrak Serpil , Nuri Dundar Bumin , Guran Tulay

Background and objective: The first and rate-limiting step of steroidogenesis is the conversion of cholesterol to pregnanolone which is catalyzed by the P450scc side chain cleavage enzyme (encoded by CYP11A1 gene-SCC). Homozygous recessive mutations of the CYP11A1 gene cause a global steroid hormone deficiency thereby disorders of sexual development in 46, XY individuals with a variable phenotype depending on the mutation characteristics. About 60 cases of SCC...

hrp0095fc3.2 | Early Life and Multisystem Endocrinology | ESPE2022

Results from a Global, Multi-Center, Phase 2b Study (RIZE) in Congenital Hyperinsulinism: Characterization of a High Unmet Treatment Need and Glycemic Response to RZ358

Demirbilek Huseyin , Melikyan Maria , Galcheva Sonya , Dastamani Antonia , Thornton Paul , De Leon Diva , Raskin Julie , Roberts Brian , Hood Davelyn , O'Boyle Erin , Christesen Henrik

Background: Congenital Hyperinsulinism (CHI) is the most frequent cause of severe, persistent hypoglycemia in children. Persistent hypoglycemia places patients at risk for adverse clinical outcomes, and current guidelines recommend maintaining plasma glucose >3.9mmol/l. CHI patients often have substantial, residual hypoglycemia and fail to meet treatment goals with currently available standard of care (SOC) therapies. In this study, we aimed to characterize...

hrp0095rfc11.5 | Late Breaking | ESPE2022

Dasiglucagon Treatment Over 21 days in Infants with Congenital Hyperinsulinism Results in Glycaemic Stability and Reduces Requirement for Intravenous Glucose

Banerjee Indraneel , D. De Leon Diva , M. Kendall David , Birch Sune , Bøge Eva , Ivkovic Jelena , S Thornton Paul , Nurdan Ciftci , Huseyin Demirbilek

Background: Congenital hyperinsulinism (CHI) is a chronic and complex rare endocrinopathy with dysregulated insulin secretion causing severe and recurrent hypoglycemia resulting in adverse neurologic and developmental sequelae in children. Current treatment options are limited and often inadequate to treat CHI. Dasiglucagon (DASI), a glucagon analog administered by subcutaneous continuous infusion, has demonstrated reduction in glucose infusion rate (GIR) in P...

hrp0089p2-p182 | Fetal, Neonatal Endocrinology and Metabolism P2 | ESPE2018

Clinical Characterstics, Genotype-Phenotype Correlations and Follow Up of Patients with Congenital Hyperinsulinaemic Hypoglycaemia; Single Center Experience from a Southeastern City of Turkey

Ozbek Mehmet Nuri , Demirbilek Huseyin , Haliloglu Belma , Demiral Meliha , Baran Riza Taner , Ellard Sian , Houghton Jayne , Flanagan Sarah E , Hussain Khalid

Objective: Congenital Hyperinsulinism (CHI) is a clinically, genetically and histologically heterogenous diesease. In recent years substantial developements have been observed in the genetics, imaging techniques and treatment options. We herein present the clinical characteristics, genetics and follow-up of 31 CHI patients from a single paediatric endocrine center with a particular emphasis on the new treatment options.Patients and method: Clinical chara...

hrp0089p3-p353 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P3 | ESPE2018

A Novel Compound Heterozygous Mutation in CYP19A1 Resulting in Aromatase Deficiency with Normal Gonadotropin Levels and Ovarian Tissue

Acar Sezer , Paketci Ahu , Onay Huseyin , Cankaya Tufan , Gursoy Semra , Ozhan Bayram , Abacı Ayhan , Ozer Erdener , Olguner Mustafa , Bober Ece , Demir Korcan

Introduction: Aromatase deficiency leading to virilization in mother and female fetuses during pregnancy is a rare disease. It is characterized by impaired estrogen production, increased gonadotropins, and ovarian cysts. Herein, we report a clinical phenotype of the virilized female due to a novel compound heterozygous mutation in CYP19A1.Case report: A 4-month-old girl was referred due to cliteromegaly. Her mother had developed acne, hair loss,...

hrp0086p1-p109 | Bone & Mineral Metabolism P1 | ESPE2016

Nonsense Mutation in SPARC Gene Causing Autosomal Recessive Ostegenesis Imperfecta

Abali Saygin , Arman Ahmet , Atay Zeynep , Bas Serpil , Cam Sevda , Gormez Zeliha , Demirci Huseyin , Alanay Yasemin , Akarsu Nurten , Bereket Abdullah , Turan Serap

Background: Osteogenesis imperfecta type XVII (OI17) (MIM#182120) have been described recently due to mutation in secreted protein, acidic, cysteine-rich (SPARC) gene located on 5q33.1.Objective and hypotheses: Here we report a novel mutation in SPARC causing OI17.Case: Two siblings presented to our clinic at the age of 10.3 and 0.5 years old. Parents were consanguineous. The older one was born with birth weight &...

hrp0086p1-p131 | Bone & Mineral Metabolism P1 | ESPE2016

Frequency of Recessive Osteogenesis Imperfecta in a Turkish Cohort and Genetic Causes

Abali Saygin , Arman Ahmet , Atay Zeynep , Bereket Abdullah , Bas Serpil , Haliloglu Belma , Guran Tulay , Gormez Zeliha , Demirci Huseyin , Akarsu Nurten , Turan Serap

Background: Osteogenesis imperfecta (OI) is a heterogeneous group of brittle bone disease mostly caused by quantative or qualitative defects in type I collagen. In most populations, more than 90% of the patients with OI have dominant mutations in COL1A1 or COL1A2 genes (AD-OI). Less than 10% of the cases have recessive inheritance (AR-OI). Currently 12 genes have been identified as a cause of AR-OI.Objective and hypotheses: We assumed h...