hrp0089p1-p016 | Adrenals and HPA Axis P1 | ESPE2018

Recurrent Hypoglycemia in a Preschooler Girl with Overgrowth: Isolated ACTH-Deficiency with a Novel TPIT Mutation

Abali Zehra Yavas , Yesil Gozde , Kirkgoz Tarik , Kaygusuz Sare Betul , Turan Serap , Bereket Abdullah , Guran Tulay

Objective: Congenital isolated ACTH deficiency (IAD) is a rare autosomal recessive disorder that is characterised by low levels of plasma ACTH and cortisol with normal pituitary structure and hormones. Clinical presentation can occur in the neonatal period, as well as later in childhood. Here, we report a patient with IAD due to a novel TPIT mutation.Case: A 48/12 years old girl presented with loss of concioussness and found to be hypoglycemic...

hrp0086p1-p731 | Pituitary and Neuroendocrinology P1 | ESPE2016

Precocious Puberty in Patients with Primary Adrenal Insufficiency due to Melanocortın Receptor 2 Mutation

Bas Firdevs , Abali Zehra Yavas , Guran Tulay , Genens Mikayir , Poyrazoglu Sukran , Bundak Ruveyde , Darendeliler Feyza

Background: Precocious puberty has a complex and polygenic etiology. To describe genetic factors affecting onset and regulation of puberty and pathophysiology of precocious puberty, further studies are needed. Although, it is reported that ACTH receptor MC4R has impact on premature adrenarche, MC2R is expressed in the adrenal cortex and has a major role on the control of hypothalamo-pituitary-adrenal cortex. Melanocortin signaling system is reported to have l...

hrp0086p2-p775 | Pituitary and Neuroendocrinology P2 | ESPE2016

Effect of Gonadotropin Releasing Hormone Analogues (GnRHa) on Final Height in Girls with Borderline Early Puberty or Normal Physiological Puberty Depend on Bone Age Advancement and Predicted Height

Hizli Zeynep , Bas Firdevs , Poyrazoglu Sukran , Genens Mikail , Abali Zehra Yavas , Bundak Ruveyde , Darendeliler Feyza

Background: Borderline precocious and normal-onset puberty can show slow or fast course. The fast development of pubertal signs can be resulted in decrease in final height (FH) via accelerated growth and bone maturation.Objective and hypotheses: To study the effectiveness of GnRHa in improving FH in girls with advanced bone age (BA) and decreased predicted height (PH) in borderline early or normal physiological puberty.Method: 135 ...

hrp0086p2-p845 | Syndromes: Mechanisms and Management P2 | ESPE2016

The 3M Syndrome: A Cause of Pre- and Post-Natal Severe Growth Retardation

Genens Mikayir , Altunoglu Umut , Bas Firdevs , Poyrazoglu Sukran , Abali Zehra Yavas , Bundak Ruveyde , Darendeliler Feyza

Background: 3-M syndrome is an autosomal recessive growth disorder characterised by severe pre- and post-natal growth retardation caused by mutations in CUL7, OBSL1 or CCDC8. Clinical characteristics include dysmorphic facial features and fleshy prominent heels with a variable degree of radiological abnormalities.Objective and hypotheses: Evaluation of four new patients from two different families. Cases:Family-1/Patients-1,2: Two ...

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...

hrp0084p2-362 | Fat | ESPE2015

Nonalcoholic Fatty Liver Disease and Intestinal Inflammation in Obese Children

Abali Zehra Yavas , Saygili Seha , Ozden Tulin , Cantez Serdar , Bas Firdevs , Ertekin Vildan , Bundak Ruveyde , Durmaz Ozlem , Darendeliler Feyza

Background: The prevelance of pediatric obesity is increasing in childhood. Nonalcoholic fatty liver disease (NAFLD) is frequently associated with obesity, insulin resistance (IR), diabetes, and hypertriglyceridemia. Gut microbiota was suggested to play a role in both etiology of NAFLD and also progression to steatohepatitis. Feacal calprotectin (FCP) is a noninvasive marker of intestinal inflammation.Objective and hypotheses: To evaluate FCP and its ass...

hrp0084p2-478 | Growth | ESPE2015

Comparison of the Turkish Growth Standards with the Who Standards

Abali Zehra Yavas , Bundak Ruveyde , Furman Andrezj , Gokcay Gulbin , Gunoz Hulya , Bas Firdevs , Darendeliler Feyza , Neyzi Olcay

Background: Growth standards are important tools in the monitoring of growth. In 2006 the World Health Organization (WHO) published new growth charts based on infants and young children living in optimal conditions in six countries and proposed that these and the NCHS data on North American children be accepted as standards for children in all countries throughout the world. Studies comparing country specific standards with WHO growth charts are therefore necessary.<p clas...

hrp0092p1-3 | Adrenals and HPA Axis | ESPE2019

Simplifying the Interpretation of Steroid Metabolome Data by a Machine-Learning Approach

Kirkgoz Tarik , Kilic Semih , Abali Zehra Yavas , Yaman Ali , Kaygusuz Sare Betul , Eltan Mehmet , Turan Serap , Haklar Goncagul , Sagiroglu Mahmut Samil , Bereket Abdullah , Guran Tulay

Background: Liquid chromatography-mass spectrometry (LC-MS) based panels of steroid hormones and their precursors offer a distinct pattern of steroid metabolome for various disorders of adrenal and gonadal steroidogenesis. However, it may not be easy to handle this high throughput data rapidly in clinical setting which requires expert opinion for correct interpretations. Analytical results of steroid panelling can be allied to automated review systems to simpl...

hrp0092p1-134 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Targeted Panel Gene Sequencing for Identification of Genetic Etiology of 46,XY Disorders of Sex Development

Poyrazoglu Sukran , Toksoy Guven , Aghayev Agharza , Karaman Birsen , Avci Sahin , Altunoglu Umut , Yildiz Melek , Abali Zehra Yavas , Bas Firdevs , Basaran Seher , Uyguner Oya , Darendeliler Feyza

Background: Disorders of sex development (DSD) vary phenotypically and are caused by a number of genetic etiologies. Although several genetic abnormalities have been discovered through genetic analyses, the underlying genetic causes of 46, XY DSD remain unknown in most of the casesAim: To identify genetic defects in patients with 46,XY DSD.Material and Methods: A total 76 DSD patie...

hrp0092p1-159 | Adrenals and HPA Axis (1) | ESPE2019

Characteristics of puberty, pubertal height gain and final height in children with classical 21 hydroxylase deficiency

Abali Zehra Yavas , Yildiz Melek , Bas Firdevs , Onal Hasan , Abali Saygin , Cilsaat Gizem , Uyguner Zehra Oya , Turan Serap , Darendeliler Feyza , Bereket Abdullah , Guran Tulay

Context: There is a limited data from large cohorts regarding pubertal characteristics of children with classical 21-hydroxylase deficiency(21OHD).Objective: To explore the timing and tempo of puberty, and pubertal height gain(PHG) in children with 21OHD-CAH.Design: A multicenter observational, retrospective, longitudinal analysis.Patients: D...