hrp0092p1-117 | Pituitary, Neuroendocrinology and Puberty | ESPE2019

The Role of Rat Hypothalamus Kisspeptin, Neurokinin and their respective Receptors in the Prolactin-Infertility Interaction

Isik Eylul Akbal , USLU Inayet Nur , AY Gulsevinc , CETINEL Nesrin , COMERTPAY Gamze , OKSUZ Hale , BARC Deniz , AKILLIOGLU Kubra , TOPALOGLU Ali Kemal , YILMAZ Mehmet Bertan

Aim: In this study, we investigated whether there was a relationship between prolactin hormone (PRL), whose excess levels lead to infertility, and expression of Kisspeptin (Kiss1), Neurokinin (Tac2) and their respective Receptors.Material and Methods: In our study, 12-16 weeks old 40 female Wistar Albino rats were classified into three groups; control group (n=10), physiological saline (SF) (n=1...

hrp0092p1-411 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology (2) | ESPE2019

Gender Decision in Disorders of Sex Development (DSD) Patients: 20 Years' Experience

Gürbüz Fatih , Alkan Murat , Celik Gonca , Bisgin Atil , Cekin Necmi , Kemal Topaloglu Ali , Zorludemir Unal , Avci Ayse , Yuksel Bilgin

Gender uncertainty is stressful condition for children and their families. Gender assignment in children with disorder of sex development (DSD) is considered as a medical emergency. Influencing factors to consider when debating gender assignment include medical diagnosis, external genital appearance, potential of fertility and sexual, therapeutic and/or surgical intervention options, views and desires of patients and families, situation of social-cultural factors, the psycholo...

hrp0082fc5.3 | Neuroendocrinology | ESPE2014

Loss of Function Mutations in pnpla6 Cause Hypogonadotropic Hypogonadism due to Impaired LH Release from Pituitary Gonadotropes

Topaloglu Ali Kemal , Lomniczi Alejandro , Kretzschmar Doris , Dissen Gregory A , Damla Kotan Leman , McArdle Craig A , Koc A. Filiz , Hamel Ben C , Guclu Metin , Papatya Esra D , Eren Erdal , Mengen Eda , Gurbuz Fatih , Cook Mandy , Castellano Juan M , Kekil M. Burcu , Mungan Neslihan O , Yuksel Bilgin , Ojeda Sergio R

Background: Gordon Holmes syndrome (GHS) is characterized by cerebellar ataxia/atrophy and normosmic hypogonadotropic hypogonadism (nHH). The underlying pathophysiology of this combined neurodegeneration and nHH remains unknown.Patients and methods: We studied a cohort of multiplex families with GHS through autozygosity mapping and whole exome sequencing.Results: We identified patients from three independent families carrying loss-...

hrp0092rfc15.2 | Late Breaking Abstracts | ESPE2019

BMP4 Mutations as a Novel Cause of Normosmic Hypogonadotropic Hypogonadism

Topaloglu A. Kemal , Yildirim Ruken , Damla Kotan Leman , Akkus Gamze , Unal Edip , Turan Ihsan , Dilek Semine , Tastan Mehmet , Gurbuz Fatih , Yuksel Bilgin

BMP4, a member of the bone morphogenetic protein family which is part of the transforming growth factor-beta superfamily, is involved in the embryonic development of various organ and tissues including the cranio-facial structures, olfactory placode, pituitary, eyes, heart, and kidneys. Mutations in this gene are associated with orofacial cleft and microphthalmia in human patients. BMP4 plays an important role in the embryonic development of the GnRH neurons ...

hrp0092p1-236 | Multisystem Endocrine Disorders | ESPE2019

Serum Endocan Levels as a Marker of Endothelial Dysfunction in Turner Syndrome and Correlation with Cardiac Findings

Gencay Ali Genco , Darendeliler Feyza , Nisli Kemal , Karaca Serra , Kardelen Asli Derya , Poyrazoglu Sükran , Bas Firdevs

Background: The most common reason for the increased mortality and morbidity in TS, which results from partial or complete deficiency of an X chromosome in a female, is acquired cardiovascular disease, which is the result of endothelial dysfunction that causes atherosclerosis. Endocan, an inflamatory marker, has been found elevated in several diseases with endothelial dysfunction (ED). There is no study of endocan levels in TS.Ob...

hrp0086fc12.3 | Neuroendocrinology | ESPE2016

Inactivating Mutations in CCDC141 Causing Idiopathic Hypogonadotrophic Hypogonadism/Kallmann Syndrome

Turan Ihsan , Hutchins B. Ian , Hacıhamdioglu Bulent , Ozbek Mehmet Nuri , Kotan Leman Damla , Ozkan Yusuf , Stoner Hudson , Cheng Paul J. , Gurbuz Fatih , Mengen Eda , Yuksel Bilgin , Wray Susan , Topaloglu Kemal

Background: GnRH neurons originate outside the CNS in the olfactory placode and migrate into the central nervous system, becoming integral components of the hypothalamic-pituitary–gonadal axis (HPG).Objective and hypotheses: We hypothesize that gene(s), whose products are important for pubertal development can be identified via autozygosity mapping together with whole exome sequencing in patients with idiopathic hypogonadotrophic hypogonadism (IHH)/...

hrp0086fc12.4 | Neuroendocrinology | ESPE2016

Idiopathic Hypogonadotrophic Hypogonadism Caused by Inactivating Mutations in SRA1

Kotan Leman Damla , Cooper Charlton , Darcan Sukran , Carr Ian , Ozen Samim , Yan Yi , Hamedani Mohammad K. , Gurbuz Fatih , Mengen Eda , Turan Ihsan , Ulubay Ayca , Akkus Gamze , Yuksel Bilgin , Leygue Etienne , Topaloglu Kemal

Background: What initiates pubertal process in humans and other mammals has remained elusive.Objective and hypotheses: We hypothesize that gene(s), whose products trigger the GnRH pulse generator to restart ticking at the usual time of puberty, can be identified via autozygosity mapping together with whole exome sequencing in patients with idiopathic hypogonadotrophic hypogonadism (IHH).Method: We studied a cohort IHH cases. Functi...

hrp0084p2-541 | Puberty | ESPE2015

Distribution of Mutations in Genes Known to be Associated with Familial Idiopathic Hypogonadotropic Hypogonadism in a Large Cohort

Kotan L. Damla , Mengen Eda , Gurbuz Fatih , Ozsu Elif , Tunc Selma , Kor Yilmaz , Cakir Esra P. , Abaci Ayhan , Demir Korcan , Akcay Teoman , Kirel Birgul , Kinik Sibel T. , Ozen Samim , Ucakturk Ahmet , Bideci Aysun , Durmaz Erdem , Unluhizarci Kursad , Turan Ihsan , Yuksel Bilgin , Topaloglu A. Kemal

Background: Idiopathic hypogonadotropic hypogonadism (IHH) is characterised by failure of initiation or maintenance of puberty due to insufficient gonadotropin release, which is not associated with anosmia/hyposmia.Objective and hypotheses: The objective of this study was to determine the distribution of causative mutations in an hereditary form of IHH.Method: In this prospective collaborative study, families with more than one aff...

hrp0094p2-13 | Adrenals and HPA Axis | ESPE2021

Utilisation Of The I-CAH Registry As A Tool For Facilitating Health Quality Improvement Strategies- Results Of An International Survey Of Specialist Centres

Ali Salma R. , Bryce Jillian , McMillan Martin , O’Connell Michele , Davies Justin H. , Ahmed S. Faisal ,

Background: Recent studies using data from the International Congenital Adrenal Hyperplasia (CAH) Registry (www.i-cah.org) (1), have provided valuable insight into the determinants of reported acute adrenal insufficiency (AI) related adverse events, demonstrating that the I-CAH Registry can be used as a tool to create clinical benchmarks in CAH care.Methods: Care quality reports were created for 32 centres who participat...

hrp0095p1-12 | Adrenals and HPA Axis | ESPE2022

Novel Homozygous Mutation in a Boy with Pseudohypoaldosteronism Type 1

Saffari Fatemeh , Homaei Ali

Pseudohypodosteronism type 1 (PHA-1) is an inherited disease caused by the resistance of peripheral tissues to aldosterone, leading to severe salt loss in infants. This rare disease is caused by mutations in the amiloride-sensitive epithelial sodium channel subunits (ENaCs). Loss-of-function mutations in ENaCs lead to PHA-1, which is associated with neonatal salt wasting. PHA1 can be transmitted as autosomal dominant and recessive forms. Patients with the autosomal dominant fo...