hrp0084p2-320 | DSD | ESPE2015

The Evaluation of AR and SRD5A2 Gene Mutations in 87 Patients with 46, XY DSD Children in Turkey

Akcan Nese , Toksoy Guven , Uyguner Oya , Saka Nurcin , Altunoglu Umut , Abali Zehra Yavas , Genens Mikayir , Poyrazoglu Sukran , Bas Firdevs , Bundak Ruveyde , Kayserili Hulya , Darendeliler Feyza

Background: Main diagnosis of 46,XY disorders of sex development (DSD) with normal testosterone secretion Androgen insensivity sydrome (AIS) or 5α-reductase deficiency (5α-RD). In prepubertal period, AIS and 5α-RD present indistinguishable phenotypes that necessitate the molecular analyses for the definitive diagnosis.Objective and hypotheses: Clinical, hormonal and genetic investigation of 46,XY DSD patients who considered as PAIS or 5&#9...

hrp0094p2-277 | Growth and syndromes (to include Turner syndrome) | ESPE2021

Response to growth hormone therapy with high IGF-1-levels and severe insulin resistance in two-cases with SOFT syndrome: A novel homozygous mutation in POC1A

Karakilic-Ozturan Esin , Altuoglu Umut , Ozturk Ayse Pinar , Toksoy Guven , Tutku Turgut Gozde , Poyrazoglu Sukran , Bas Firdevs , Uyguner Oya , Darendeliler Feyza ,

Introduction: SOFT-syndrome (#MIM 614783) is a rare condition characterized by short stature, onychodysplasia, facial dysmorphism and hypotrichosis caused by POC1A gene mutations. Moreover, severe insulin resistance (IR) and metabolic disorders may also accompany. Hereby, we report two-patients with SOFT-syndrome, who had severe short stature and IR, with a novel POC1A mutation.Case Report: Patient 1 (P1), a 16-month ol...

hrp0084fc5.2 | Endocrine Oncology/Turner | ESPE2015

MEN1 Syndrome Because of Combined Germline and Somatic Mosaicism, with Important Consequences for Relatives

Kempers Marlies , Stikkelbroeck Nike , Mensenkamp Arjen , Pfundt Rolph , van der Luijt Rob , Timmers Henri , Claahsen Hedi , Hoogerbrugge Nicoline , Hermus Ad

Background: Multiple endocrine neoplasia type I (MEN1) is characterized by the combined occurrence of tumours in several endocrine tissues such as parathyroid tumours, pituitary tumours (usually prolactinomas) and pancreatic neuroendocrine tumours. MEN1 is an autosomal dominant disorder caused by germline mutations in the tumour suppressor gene MEN1. First-degree relatives of a germline MEN1 mutation carrier have a 50% risk of the mutation. Intensive surveillance of g...

hrp0095rfc9.2 | Pituitary, Neuroendocrinology and Puberty | ESPE2022

Investigation of Genes Associated with Multiple Pituitary Hormone Deficiencies via Next Generation Sequencing Technology

Pınar Öztürk Ayşe , Toksoy Güven , Baş Firdevs , Yavaş Abalı Zehra , Bagirova Gülendam , Karaman Volkan , Yıldız Melek , Aslanger Ayça , Yeşil Gözde , Poyrazoğlu Şükran , Oya Uyguner Zehra , Darendeliler Feyza

Background: Deficiency of one or more pituitary hormones, often with growth hormone (GH) deficiency, is defined as multiple pituitary hormone deficiencies (MPHD) or congenital hypopituitarism (CH). CH cases are mostly sporadic and have a prevalence of 1/3000-4000 live births. There are many known and yet unknown molecular pathways explaining the complex structure and functions of the pituitary gland. Many different gross and small sequence variants in the gene...

hrp0092p1-390 | Growth and Syndromes (to include Turner Syndrome) (2) | ESPE2019

Genetic Evaluation of Idiopathic Short Stature

Karaman Birsen , Bas Firdevs , Najafli Adam , Avci Sahin , Kardelen Al Asli Derya , Toksoy Güven , Altunoglu Umut , Poyrazoglu Sükran , Uyguner Zehra Oya , Darendeliler Feyza , Basaran Seher

Introduction: Short stature is a multifactorial condition caused by both genetic and environmental factors. Genetic causes include chromosomal disorders and diseases inherited by monogenic and multifactorial inheritance. The purpose of genetic evaluation in short stature is not only for diagnosis, but also to provide additional information to the patients and their families about prognosis of the disease, treatment approaches and genetic counseling.<p clas...

hrp0089p2-p344 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P2 | ESPE2018

Copy-Number Variations of the Human Olfactory Receptor Gene Family in Patients with Macromastia and Prepubertal Gynecomastia

Baş Firdevs , Karaman Birsen , Al Aslı Derya Kardelen , Heidargholizadeh Somayyeh , Najaflı Adam , Toksoy Guven , Poyrazoğlu Şukran , Yıldız Melek , Uyguner Oya , Başaran Seher , Darendeliler Feyza

Background: Aromatase excess syndrome (AEXS) (OMIM 139300) is a rare condition characterized with gynecomastia in boys and macromastia in girls. Estrogen excess in boys can lead to prepubertal and pubertal gynecomastia, bone age progression and short adult stature. While most of girls are usually asymptomatic, there are few reported female patients with excessive breast growth, early puberty, menstrual irregularities, and short adult stature. Male and female children with AEXS...

hrp0084p3-584 | Adrenals | ESPE2015

CYP11B1 Gene Mutations in Patients with Congenital Adrenal Hyperplasia in Turkey

Bas Firdevs , Ergun-Longmire Berrin , Saka Nurcin , Toksoy Guven , Uyguner Oya , Poyrazoglu Sukran , Ahmed Shaun , Cobb Edward , Altunoglu Umut , Bundak Ruveyde , Darendeliler Feyza , Gunoz Hulya , New Maria I , Wilson Robert

Background: Congenital adrenal hyperplasia (CAH) due to 11β-hydroxylase deficiency (11OHD), a rare autosomal recessive disorder, is the second most common form of CAH, resulting in glucocorticoid deficiency, hyperandrogenism and hypertension.Objective and hypotheses: To investigate the specific CAH mutations in CYP11B1 gene and to examine for genotype-phenotype correlations.Method: 21 patients (n=9, 46, XX; <...

hrp0092rfc2.5 | Bone, Growth Plate and Mineral Metabolism Session 1 | ESPE2019

Long Term Effects of Treatment with Oxandrolone (Ox) in Addition to Growth Hormone (GH) in Girls with Turner Syndrome (TS) on Bone Mineral Density in Adulthood

Breunis Leonieke , Boer Pieter , Freriks Kim , Menke Leonie , Boot Annemieke , Wit Jan Maarten , Otten Barto , Muinck Keizer-Schrama Sabine de , Hermus Ad , Timmers Henri , Sas Theo

Introduction: Ox in a dose of 0.03-0.05 mg/kg per day in addition to GH treatment significantly increases adult height in TS more than GH alone. To date, the long term effects of Ox in childhood on bone mineral density (BMD) in adulthood are unknown.Methods: This is a follow-up study of a previous randomized controlled trial, performed in the Netherlands. In the original trial, 133 girls were treated with GH. Placebo (Pl...

hrp0095p1-517 | Growth and Syndromes | ESPE2022

Evaluation of Genetic Etiology in Children Born Small for Gestational Age with Persistent Short Stature: Preliminary Results

Pınar Öztürk Ayşe , Aslanger Ayça , Karakılıç Özturan Esin , Nur Konur Esma , Güleç Çağrı , Karaman Volkan , Yıldız Melek , Yeşil Gözde , Toksoy Güven , Poyrazoğlu Şükran , Baş Firdevs , Karaman Birsen , Oya Uyguner Zehra , Başaran Seher , Darendeliler Feyza

Background: Approximately 10-15% of small for gestational age (SGA) newborns are at risk of having subnormal growth and persistent short stature. It is postulated that a large amount of persistent short stature results from genetic abnormalities, which are commonly characterized by dysmorphic features and developmental disorders.Aim: To uncover the genetic etiology of syndromic short stature children born SGA.<p clas...

hrp0089p1-p200 | Pituitary, Neuroendocrinology and Puberty P1 | ESPE2018

PROKR2 Mutations in Patients with Growth Hormone Deficiency and Multiple Pituitary Hormone Deficiency

Najaflı Adam , Baş Firdevs , Karaman Birsen , Al Aslı Derya Kardelen , Toksoy Guven , Poyrazoğlu Şukran , Uyguner Oya , Avcı Şahin , Altunoğlu Umut , Ozturan Esin Karakılıc , Başarn Seher , Darendeliler Feyza

Background: Rokineticin receptors (PROKR1 and PROKR2) belong to the family of G protein-coupled receptors. Bi-or mono allelic mutations in PROKR2 gene have been identified in Kallmann syndrome which is characterized by hypogonadotropic hypogonadism and anosmia/hyposmia. Recently, PROKR2 mutations were reported in patients with multiple pituitary hormone (MPHD) and growth hormone deficiencies (GHD), suggesting a potential role for the PROK2 p...