hrp0095p1-351 | Pituitary, Neuroendocrinology and Puberty | ESPE2022

Evaluation of Early Puberty in Patients with MC2R Deficiency

Karakilic Ozturan Esin , Bas Firdevs , Yavas Abali Zehra , Karaman Volkan , Poyrazoğlu Sukran , Oya Uyguner Zehra , Darendeliler Feyza

Background: Melanocortin receptor 2 (MC2R) is expressed in the adrenal cortex and has a major role in the control of the hypothalamic-pituitary-adrenal axis. It is reported that the ACTH receptor MC4R has an impact on premature adrenarche. The melanocortin signaling system is reported to have leptin mediated effect on the regulation of GnRH neuron activity and has an important role in the onset of puberty and fertility.Objective:...

hrp0095p1-280 | Fat, Metabolism and Obesity | ESPE2022

A rare cause of monogenic obesity: Schaaf-Yang syndrome due to a novel MAGEL2 gene variant

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

Background: Paternally expressed mono-allelic pathogenic variants in the MAGEL2 (melanoma antigen L2) gene cause Schaaf-Yang syndrome (SHFYNG), a multisystem disorder with psychomotor delay, intellectual disability, behavioral abnormalities, and obesity. Severity of the disease is highly variable, some patients may die in utero and some can live with moderate disabilities. MAGEL2 gene is located in the 15q11.2– q13 region which includes...

hrp0092p3-80 | Diabetes and Insulin | ESPE2019

A Real-Life Experience with a New Insulin Co-Formulation Degludec/Aspart for one Year in Poorly Controlled Children and Adolescents with Type 1 Diabetes

kirkgoz tarik , Eltan Mehmet , Betul Kaygusuz Sare , yavas abali Zehra , Guran Tulay , Bereket Abdullah , Turan Serap

Achieving optimal metabolic control can be extremely challenging in some children and adolescents with T1DM. The adherence to multiple injections/day is among the leading causes of suboptimal control. Recently insulin degludec/aspart co-formulation (70%IDeg+30%IAsp: IDegAsp) has become available. Because of the longer-duration of IDeg, and retained individual pharmacokinetics of IDeg and IAsp, we wanted to test insulin IDegAsp's efficacy in our patients with po...

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...

hrp0089p3-p030 | Adrenals and HPA Axis P3 | ESPE2018

Delayed Diagnosis of a Patient with Antley-Bixler Syndrome

Kirkgoz Tarik , Bas Serpil , Yavas Abali Zehra , Turan Serap , Bereket Abdullah , Guran Tulay

Objective: Antley-Bixler syndrome Type 1 (ABS1) is a rare form of craniosynostosis characterized by multiple dysmorphic features, radio-humeral synostosis and urogenital abnormalities due to P450 oxidoreductase (POR) gene mutations. ABS is also associated with adrenal and gonadal failure which are sometimes underrecognized due to predominance of skeletal findings in various clinics. We report a female patient with very characteristic skeletal and facial features of AB...

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 ...

hrp0094p1-102 | Adrenal B | ESPE2021

Correlation of 11-oxygenated C19 androgens with the clinical and biochemical characteristics in premature adrenarche

Yavas Abali Zehra , Eltan Mehmet , Helvacioglu Didem , Yaman Ali , Turan Serap , Bereket Abdullah , Guran Tulay ,

Background: Premature adrenarche (PA) is defined as the appearance of pubic and/or axillary hair in girls younger than 8 years old and caused by the rise in adrenal androgen production including dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEAS), and androstenedione (A4). DHEAS≥40 µg/dL is accepted as the biochemical marker of adrenarche. However, adrenals also produce 11-oxygenated C19 androgens such as 11β-hydroxyandrostene...

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...