hrp0095p1-588 | Thyroid | ESPE2022

Thyrotoxicosis in children and adolescence in Iceland: A twenty-year retrospective study

Atli Þórsson Þórbergur , Bjarnason Ragnar , Guðrún Jónasdóttir Soffía , Jónsdóttir Berglind

Introduction: Thyrotoxicosis is a clinical manifestation that arises due to excessive amounts of circulating thyroid hormone in the body with a subsequent hypermetabolic state. The condition has multiple aetiologies of which Graves’ disease accounts for the most cases in children and adolescence. Symptoms in children are often more obscure than those seen in adults which may contribute to diagnostic delay of the condition. The aim of the study is to asse...

hrp0092p1-143 | Thyroid | ESPE2019

Biotine Interference in a Patient with Non-Clinic High Thyroid Hormone Levels

Ayranci Ilkay , Filibeli Berna Eroglu , Manyas Hayrullah , Dündar Bumin Nuri , Çatli Gönül

Introduction: Differential diagnosis of thyroid hormone resistance (beta) and TSHoma should be made in patients with high free thyroxine (f-T4) and free triiodothyronine (f-T3) and non-suppressed thyroid stimulating hormone (TSH) levels. The aim of this study was to present the results of etiological research in a patient with Down syndrome who was clinically euthyroid and had high levels of f-T4, f-T3, normal TSH levels.Case</st...

hrp0092p1-245 | Multisystem Endocrine Disorders | ESPE2019

PTEN Hamartoma Tumor Syndrome (Overlap of Cowden syndrome and the Bannayan-Riley-Ruvalcaba Syndrome): Case Report

Manyas Hayrullah , Çatli Gönül , Eroglu Filibeli Berna , Ayranci Ilkay , Özdemir Taha Resid , Dündar Bumin Nuri

Introduction: PTEN Hamartoma Tumor Syndrome (PHTS) is a rare disease with dominant inheritance characterized by benign (hamartoma) and malignant tumors (breast, endometrium, thyroid). Mutations in the tumor suppressor gene phosphatase and tensin homologue (PTEN) gene are responsible for the etiology.Objective: In this case report, we present an 11-year-old male who was being monitored due to follicular thyroid cancer, an...

hrp0092p1-308 | Diabetes and Insulin (2) | ESPE2019

ABCC8 MODY in an Obese Adolescent Misdiagnosed with Type 2 Diabetes

Filibeli Berna Eroglu , Çatli Gönül , Manyas Hayrullah , Ayranci Ilkay , Kaya Özge Özer , Dündar Bumin

Introduction: An activating mutations in the ABCC8 gene cause both transient and permanent neonatal diabetes mellitus (DM) or MODY 12. In relation to the variant in the ABCC8 gene, patients may also present with either neonatal hyperinsulinism and/or DM later in life. Besides, the same variant can cause different phenotypic features among family members. Response to the sulfonylurea treatment may vary between patients.<...

hrp0092p1-321 | Diabetes and Insulin (2) | ESPE2019

A Case of Late-Onset Monogenic Diabetes Due to a Homozygous Variant in the GCK Gene

Filibeli Berna Eroglu , Çatli Gönül , Ayranci Ilkay , Manyas Hayrullah , Kirbiyik Özgür , Dündar Bumin

Introduction: Heterozygous loss-of-function mutations in the glucokinase (GCK) gene cause MODY 2. Conversely, homozygous loss-of-function mutations in the same gene give rise to permanent neonatal diabetes mellitus (DM). Previously, two patients diagnosed with DM in adolescence and had homozygous GCK mutations were reported. Variants in these patients have been shown to exhibit inactivated kinetics that are indistinguishable from neonatal ons...

hrp0092p3-182 | Multisystem Endocrine Disorders | ESPE2019

Two Siblings Case with Diagnosis of Autoimmune Polyglandular Syndrome Type 1

Manyas Hayrullah , Eroğlu Filibeli Berna , Ayranci İlkay , Dündar Bumin Nuri , Çatli Gönül

Introduction: Autoimmune polyglandular syndrome type 1 (OPS1) is characterized by chronic mucocutaneous candidiasis, hypoparathyroidism and autoimmune adrenalitis. The mutations in the localized autoimmune regulator gene (AIRE) at 21q22.3 present the etiological cause.Objective: In this case report, two siblings case who were diagnosed with OPS1 with different clinical findings except classic triad were presente...

hrp0092p3-215 | Pituitary, Neuroendocrinology and Puberty | ESPE2019

MKRN3 Gene Mutation in a Case of Familial Central Precocious Puberty

Eroğlu Filibeli Berna , Ayranci İlkay , Manyas Hayrullah , Kirbiyik Özgür , Dündar Bumin , Çatli Gönül

Introduction: Gain-of-function mutations in KISS1 and KISS1R genes and loss-of-function mutations in the gene encoding the makorin RING-finger protein 3 (MKRN3) expressed only in the paternal allele are the most common genetic reasons of familial central precocious puberty (CPP).Aim: We report a case of familial CPP and a pathogen variant in the MKRN3 gene.<stron...

hrp0092p3-226 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Rare Cause of 46,XY Sexual Development Disorder: 17β-Hydroxysteroid Dehydrogenase Type 3 Deficiency

Manyas Hayrullah , Eroğlu Filibeli Berna , Ayranci İlkay , Saka Güvenç Merve , Nuri Dündar Bumin , Çatli Gönül

Introduction: 17β-hydroxysteroid dehydrogenase type 3 (17βHSD3) enzyme deficiency is a rare cause of 46 XY disorder of sexual development. It is inherited autosomal recessively and clinical phenotype is highly heterogeneous and depends on the mutation severity. Conversion of androstenedione to testosterone deteriorates due to lack of enzyme.Objective: In this case report, we present a case who was born en...

hrp0092p1-335 | Fat, Metabolism and Obesity (2) | ESPE2019

The Relationship Between Serum Neurotensin Levels and Metabolic Parameters and Eating Behavior in Obese Children

Tuncerler Gülten , Özyurt Gonca , Uzun Hamide , Çalan Özlem Gürsoy , Küme Tuncay , Dündar Bumin Nuri , Çatli Gönül

Introduction: Neurotensin is a 13 amino acid peptide with central and intestinal effects. It has been shown to decrease intestinal and gastric motility, increase the absorption of fat by regulating the release of pancreas and bile acid. In addition, it is reported that there is also an anorexigenic effect of the neurotensin released from the central nervous system. In the literature, conflicting results related to serum / plasma neurotensin levels were reporte...

hrp0092p3-106 | Fat, Metabolism and Obesity | ESPE2019

Phenotypic and Genotypic Properties of Children with Suspicion of Monogenic Obesity

Ayranci Ilkay , Çatli Gönül , Eroğlu Filibeli Berna , Yiğit Gülşahin Elif , Özyilmaz Berk , Manyas Hayrullah , Nuri Dündar Bumin

Results: Total of 47 obese patients (20 females, 39 pubertals, mean age of 14.3 years).±3.2 years) were included in the study. Severe obesity present in 85% of patients, early-onset obesity in 51%, consanguinity among parents in 17%, and at least one parent with obesity in 63.8% were present. 55.3% of the patients had a family history of diabetes, 63% had acanthosis nigricans and 77% had striae. Anthropometric and laboratory ch...