hrp0094p2-371 | Pituitary, neuroendocrinology and puberty | ESPE2021

Is quail egg a potential endocrine disruptor?

Surekli Karakus Ozlem , Arabaci Tamer Sevil , Nisva Levent Hilal , Betul Kaygusuz Sare , Turan Serap , Akakin Dilek , Guran Tulay , Caglayan Yegen Berrak , Bereket Abdullah ,

Aim: Quail egg (QE) consumption became popular among children for alleged health benefits. Based on our observation of premature thelarche (PT) in a few children who consumed QE, we investigated the relationship between QE and puberty by a clinical and an experimental studies.Method: In the clinical study, a questionaire was used to compare the frequency and amount of QE consumption (between 55 girls with PT (n ...

hrp0097p1-420 | Bone, Growth Plate and Mineral Metabolism | ESPE2023

Exploring Childhood Hypoparathyroidism: Stepwise Genetic Evaluation Approach

Gurpinar Tosun Busra , Alavanda Ceren , Kahveci Ahmet , Kurt İlknur , Kelestemur Elif , Yavas Abali Zehra , Helvacioglu Didem , Guran Tulay , Bereket Abdullah , Ata Pınar , Turan Serap

Background: Primary hypoparathyroidism (HP) is a rare disease characterized by hypocalcemia, hyperphosphatemia and low/inappropriately normal parathyroid hormone (PTH) levels. We aim to characterize the clinical findings and molecular aetiology of childhood HP in our cohort.Method: DiGeorge-VCFS FISH analysis was performed on all patients (n=28) as the initial step after the diagnosis. In whom, FISH analysis was...

hrp0097p1-340 | Multisystem Endocrine Disorders | ESPE2023

Long-Term Endocrine Complications of Medulloblastoma and The Effect of Growth Hormone Therapy on Final Height

Kelestemur Elif , Helvacioglu Didem , Gurpinar Tosun Busra , Kahveci Ahmet , Kurt Ilknur , Yavas Abali Zehra , Haliloglu Belma , Guran Tulay , Bereket Abdullah , Turan Serap

Introduction: Medulloblastoma is the most common central nervous system tumour in children representing, approximately 20% of childhood brain tumours. Cure can be achieved with surgery, chemotherapy and radiotherapy. However, disease survivors encounter long term endocrine complications including short stature due to growth hormone (GH) deficiency and spinal radiotherapy.Patients and Methods: We aimed to investigate long...

hrp0097p1-530 | Multisystem Endocrine Disorders | ESPE2023

Anthropometric, clinical, and molecular genetic characteristics of 42 patients with RASopathies

Yavas Abali Zehra , Bilge Geckinli Bilgen , Eltan Mehmet , Kahveci Ahmet , Gurpinar Tosun Busra , Helvacioglu Didem , Guran Tulay , Bereket Abdullah , Turan Serap

Background: RASopathies are a group of diseases with common clinical features that occur as a result of pathogenic variants in genes encoding components of the RAS/MAPK pathway. The aim of this study was to evaluate the clinical and molecular features of RASopathy cases in our pediatric endocrinology unit.Subjects and Methods: The clinical and molecular data of 42 patients (18 girls) from 39 families were evaluated, retr...

hrp0097p2-190 | Adrenals and HPA Axis | ESPE2023

Evaluation of two cases with 46,XX and 46,XY karyotypes diagnosed with 17α-hydroxylase deficiency

Kurt Ilknur , Sagsak Elif , Murat Nurhan , Gurpinar Tosun Busra , Helvacioglu Didem , Yavas Abali Zehra , Kahveci Ahmet , Kelestemur Elif , Haliloglu Belma , Turan Serap , Bereket Abdullah , Guran Tulay

Introduction: 17α-hydroxylase deficiency (17OHD) is a rare form of congenital adrenal insufficiency characterized with decreased cortisol and sex steroid biosynthesis, overproduction of ACTH, and increased mineralocorticoids. The overproduction of corticosterone hinders the symptoms of glucocorticoid deficiency and causes sodium retention, hypertension, and hypokalemia in severe cases. Affected 46,XX and 46,XY individuals are phenotypically female in the...

hrp0097p2-46 | Thyroid | ESPE2023

Admission Characteristics and Rates of Transient/Permanent Hypothyroidism in Infants from Congenital Hypothyroidism Screening

Kahveci Ahmet , Helvacıoglu Didem , Kurt Ilknur , Kelestemur Elif , Gurpınar Tosun Busra , Yavas Abalı Zehra , Haliloglu Belma , Guran Tulay , Bereket Abdullah , Turan Serap

Introduction and Aim: In this study, we aimed to investigate the admission characteristics, the ratio of permanent/transient hypothyroidism, and the predictors of permanent or transient hypothyroidism at initial evaluation in newborns admitted in 2013 and 2014 from neonatal TSH screening program.Method and Results: During two years period, 985 babies were admitted to our clinic with screening results for evaluation, and ...

hrp0097p2-275 | Late Breaking | ESPE2023

Comparison of efficacy and safety of Leuprolide acetate depot 3.75 mg four-weekly versus 11.25 mg twelve-weekly in girls with central precocious puberty: A randomized-prospective study.

Helvacıoğlu Didem , Demircioğlu Serap , Güran Tülay , Haliloğlu Belma , Gürpınar Tosun Busra , Kahveci Ahmet , Bereket Abdullah

Context: Clinical experience is limited regarding the efficacy of different depot Leuprolide acetate (dLA) treatment protocols in girls with central precocious puberty (CPP).Aim: To compare the 3.75 mg/4 weeks versus 11.25 mg/12 weeks ıntramuscular injection of dLA in suppressing gonadotropins and pubertal development.Subjects and Methods: In a prospective study, 92 girls wit...

hrp0097p2-288 | Late Breaking | ESPE2023

Validation of utility of a single LH measurement 40 minutes after depot Leuprolide acetate 3.75 mg and 11.25 mg in assessing gonadotropic activity in girls with CPP: Comparison with a standard GnRH stimulation test at diagnosis and during treatment.

Helvacıoğlu Didem , Demircioğlu Serap , Güran Tülay , Haliloğlu Belma , Türkmen Nilsu , Gurpınar Tosun Buşra , Kahveci Ahmet , Bereket Abdullah

Context: Intravenous Gonadotropin-Releasing-Hormone (GnRH) stimulation test has a central role in evaluating gonadotropic activation in the diagnosis and monitorization of the treatment in patients with central precocious puberty (CPP). However, this test is invasive, laborious, costly and availability of GnRH preparation is limited in some countries.Objective: To evaluate the utility of the LH level measured 40-minutes ...

hrp0098rfc2.4 | Bone, Growth Plate and Mineral Metabolism | ESPE2024

CYP24A1 MUTATIONS: CLINICAL AND LABORATORY FEATURES IN PATIENTS PRESENTING WITH HYPERCALCEMIA

Kurt Ilknur , Eltan Mehmet , Yavas Abalı Zehra , Alavanda Ceren , Demir Senol , Ata Pınar , Haliloglu Belma , Guran Tulay , Bereket Abdullah , Turan Serap

Background: The inactivating mutations of CYP24A1 (OMIM*126065) were first identified in idiopathic infantile hypercalcemia (IH) and named IH-type1 (IH1). However, biallelic mutations were later associated with hypercalcemia at various ages. In our study, we aimed to present the clinical and laboratory findings of our patients who presented with hypercalcemia and were found to have a mutation in CYP24A1.Methods and Resul...

hrp0098rfc3.6 | Pituitary, Neuroendocrinology and Puberty 1 | ESPE2024

Final Height and Endocrine Complications in Children with Pilocytic Astrocytomas: A Retrospective Study

Tugba Canbaz Aylin , Helvacioglu Didem , Gurpinar Tosun Busra , Yavas Abali Zehra , Sahin Yener , Guran Tulay , Bereket Abdullah , Dagcinar Adnan , Turan Serap

Background/aims: Pilocytic astrocytomas (PA) are low-grade neoplasms that affect the precortical visual pathway and are most commonly detected in children and adolescents, representing 2–5% of childhood central nervous system (CNS) tumours. Optic gliomas (OPGs) can occur sporadically, or in association with neurofibromatosis type 1 (NF1). We assessed the prevalence of endocrine dysfunction in children with PA and evaluated outcomes between subgroups of P...