hrp0094p2-432 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2021

46,XY DSD due to biallelic DHX37 gene mutations

Eltan Mehmet , Helvacioglu Didem , Ates Esra Arslan , Abali Zehra Yavas , Turan Serap , Bereket Abdullah , Guran Tulay

Background: DEAH-box protein DHX37, encodes an RNA helicase, is involved in ribosome biogenesis. Monoallelic mutations in DHX37 gene have recently been identified in 46,XY differences/disorders of sex development (DSD) patients with nonsyndromic gonadal dysgenesis as well as testicular regression, while biallelic mutations have been associated with microcephaly and structural brain abnormalities. Here, we present a patient with penoscrotal hypospadias and bil...

hrp0094p2-385 | Pituitary, neuroendocrinology and puberty | ESPE2021

A Practical Method for the Evaluation of Childhood Hypophysitis: Pituitary Stalk/Basilary Artery Ratio

Torel Ergur Ayca , Şimşek Fatma , Arslan Kubra , Ali Yinanc Mehmet ,

Introduction: Childhood hypophysitis (CH) is an extremely rare entity that has difficulties in definition and displays a wide variety of symptomatology. The volume and shape of pituitary gland may increase in physiological periods such as puberty and pregnancy, it may also change in various neuroendocrine and psychiatric diseases. It is important to distinguish physiological changes observed in the pituitary, especially in puberty, from hypophysitis.F...

hrp0097fc13.4 | Pituitary, neuroendocrinology and puberty 2 | ESPE2023

Clinical and molecular genetic characteristics of 98 patients with congenital hypopituitarism: A single-center experience

Yavas Abali Zehra , Arslan Ates Esra , Eltan Mehmet , Turan Serap , Bereket Abdullah , Guran Tulay

Background: Congenital hypopituitarism (CH) refers to a deficiency of one or more pituitary hormones resulting from variants in genes encoding transcription factors for pituitary development. CH cases are mostly sporadic but 5-30% can be familial. Genetic etiology is not determined in most cases. The aim of our study was to evaluate the genetic features of CH using different molecular and/or molecular cytogenetic techniques.Subje...

hrp0095p1-173 | Sex Differentiation, Gonads and Gynaecology, and Sex Endocrinology | ESPE2022

Differences due to the variant type in the inheritance pattern of BMP15 gene-related primary ovarian insufficiency: a girl with a homozygous null BMP15 gene variant

Yavas Abali Zehra , Arslan Ates Esra , Eltan Mehmet , Gurpinar Tosun Busra , Bereket Abdullah , Guran Tulay , Turan Serap

Background: Bone morphogenetic protein 15 (BMP15), is an oocyte-specific growth factor, that regulates folliculogenesis and ovulation rate. It is encoded by the BMP15 gene (chromosome Xp11.2), in which heterozygous missense variants in the precursor or mature peptide cause primary ovarian insufficiency (POI) with the dominant-negative effect. BMP15-related ovarian dysgenesis (OD) constitutes 1.5-2.0% of POI. The underlying mechanism ...

hrp0095p1-391 | Thyroid | ESPE2022

Biochemical Indicators of Euthyroid Sick Syndrome in Critically Ill Children

Besci Tolga , Besci Özge , Arslan Gazi , Ilgaz Hande , Prencuva Pınar , Özdemir Göktuğ , Abacı Ayhan , Demir Korcan

Purpose: This study aimed to determine the prevalence and predictors of Euthyroid Sick syndrome (ESS) in pediatric intensive care, and to establish a link between thyroid function tests and mortality.Methods: Between January 2015 and March 2020, children admitted to our pediatric intensive care unit (PICU) and tested for free triiodothyronine (fT3), free thyroxine (fT4), and thyrotropin (TSH) levels were included. Patien...

hrp0094p2-166 | Diabetes and insulin | ESPE2021

How Does Continuous Glucose Monitoring Systems Effect Metabolic Control In Type 1 Diabetes: Single Center Experience

Arslan Emrullah , ER Eren , Demir Gunay , Isiklar Hafize , Atik Altinok Yasemin , Ozen Samim , Darcan Sukran , Goksen Damla ,

Introduction: Continuous Glucose Monitoring System (CGMS) takes place increasingly in the daily routines of diabetic patients. It has been shown that metabolic control improves when CGMS is used consistently. We aimed to show the effect of CGMS in patients using MDI therapyMaterials - Methods: All patients using multiple-dose insulin therapy at our center and continued their regular follow-up and using CGMS for at least three months were...

hrp0097p2-184 | Diabetes and Insulin | ESPE2023

An Obese HNF1β Case Presenting with Diabetic Ketoacidosis

Kahveci Ahmet , Kaplan Gunay , Arslan Ateş Esra , Bilge Geckinli Bilgen , Guran Tulay , Turan Serap , Bereket Abdullah , Haliloglu Belma

Background: Hepatocyte nuclear factor 1β (HNF1β) is a critical transcription factor that regulates the development of the kidneys, pancreas, liver and genital tract. Patients with deletions and mutations in the HNF1 β gene present with renal and extrarenal manifestations. The most important extrarenal finding is diabetes, also known as MODY5. Although it is generally diagnosed with hyperglycemia, diabetic ketoacidosis is rarely seen.<p class...

hrp0095fc4.1 | Fat, Metabolism and Obesity | ESPE2022

Natural History of LEP, LEPR and MC4R Deficiencies – A Population-Based Study

Saeed Sadia , Manzoor Jaida , Khanam Roohia , Janjua Qasim , Ning Lijiao , Ayesha Hina , Khan Waqas , Bonnefond Amélie , Hanook Sharoon , Butt Taeed , Arslan Muhammad , Froguel Philippe

Background: Proteins encoded by LEP, LEPR and MC4R genes are principally involved in driving the leptin-melanocortin pathway. Mutations in these genes induce a rare and severe form of monogenic obesity but the long-term evolution of these afflictions is unknown. Here, we carried out a clinical investigation on 132 children with LEP, LEPR and MC4R deficiency from Pakistan to evaluate progression of the disease and its impact on co-mor...

hrp0089p2-p395 | Thyroid P2 | ESPE2018

Serum Level of Biotin Rather than the Daily Dose is the Main Determinant of the Interference on Thyroid Function Assays in Patients with Biotinidase Deficiency

Paketci Ahu , Kose Engin , Calan Ozlem Gursoy , Acar Sezer , Teke Pelin , Demirci Ferhat , Abacı Ayhan , Demir Korcan , Arslan Nur , Bober Ece

Introduction: High doses of biotin are reported to cause incorrect results in various immunoassays in some patients. However, there is no systematic study regarding biotin interference in childhood.Aim: To assess thyroid function with different methods in subjects with biotinidase deficiency, to determine the factors causing interference, and to investigate the efficiency of the methods for overcoming interference.Method: The study...

hrp0094p2-434 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2021

A case of gender developmental disorder with difficulty in molecular diagnosis: New variant in NR5A1 gene

Arslan Emrullah , Solmaz Aslı Ece , Aykut Ayca , Durmaz Asude , Atik Tahir , Goksen Damla , Ulman Ibrahim , Ozbaran Burcu , Ozen Samim , Darcan Sukran

"Steroidogenic Factor-1" (SF-1); It is encoded by the NR5A1 gene in 9q 33.3 and regulates the transcription of genes involved in steroidogenesis. It is reported that 46 of the variants in this gene constitute 10-20% of XY sex development disorders (DSD). The patient admitted because of a swelling in the left groin at one month old. She was raised as female. Uterus was 12x2.5 mm in ultrasonography and the gonad in the inguinal region was evaluated as testis. She was P...