ESPE Abstracts

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 ...

Introduction: Gonadal insufficiency is a common long-term endocrinological complication of BMT and is mainly associated with the chemotherapy protocol. In the literature, gonadal insufficiency after BMT varies between 66% -80% in girls and 35-60% in boysAim: to investigate the frequency and the factors affecting gonadal insufficiency in cases with BMT due to non-malignant indications in children or adolescenc...

Introduction: Mutations in FGFR1, which is involved in formation and migration of neurons responsible for the production of gonadotropin-releasing hormones, may either cause isolated hypogonadotropic hypogonadism (HH) or Kallmann syndrome (KS). In addition, FGFR1mutations were reported in 2.7% of the cases with multiple pituitary hormone deficiency.Case: A 16-year-old male was referred to our clinic...

Introduction: Lipodystrophies are heterogeneous group of disorders; characterized by congenital or acquired loss of fat tissue. These disorders can causes severe metabolic complications during childhood. Case: 10.5 years old girl admitted to our clinic due to pigmented lesions on her body. She was investigated due to sclerotic lesions on her legs when she was 8 years old and was diagnosed as scleroderma and methotrexate was initiated. On physical examination weight was 47 kg (...

Introduction: Premature ovarian failure (POF) is defined as ovarian failure developing before the age of 40. The etiology of genetic POF is quite heterogeneous and can be due to genetic, autoimmune, environmental, viral infections or iatrogenic causes.Objective: The aim of this study is to investigate the molecular genetic causes of non-syndromic POF cases with the gene panel based on next generation sequence analysis an...

Introduction: The etiology of hyperandrogenism is diverse and diagnosis is based on history, clinical findings, reliable measurement of steroid hormones and genetic analyzes. In the electrochemiluminescence immunoassay (ECLIA) method, the presence of various endogenous compounds and the use of certain pharmaceutical agents may cause interference in results, on the other hand liquid chromatography-mass spectrometry (LC-MS/MS) method allows measurement of 17 adr...

"Steroidogenic Factor-1" (SF-1); It is encoded by the NR5A1 gene in 9q 33.3 and regulates the transcription of genes involved in steroidogenesis. It is reported that 46 of the variants in this gene constitute 10-20% of XY sex development disorders (DSD). The patient admitted because of a swelling in the left groin at one month old. She was raised as female. Uterus was 12x2.5 mm in ultrasonography and the gonad in the inguinal region was evaluated as testis. She was P...

Introduction: Diabetic ketoacidosis (DKA) is a life-threatening acute complication of type 1 diabetes mellitus (T1DM) and infection is the most common precipitating factor for DKA and is responsible for more than 50% of cases.Aim: We evaluated the frequency and severity of DKA in children with T1DM, before and during the coronavirus disease 2019 (COVID-19) outbreak, in order to identify its indirect effects on DKA incide...

Introduction-Objective: Nephropathy, retinopathy, neuropathy are long-term microvascular complications of diabetes. Glycated hemoglobin (HbA1c), used as a glycemic control indicator, have proven to be indicative in the development of microvascular complications. In this study, the contribution of HbA1c variability to complication development was evaluated.Method: Twenty one cases with type 1 diabetes mellitus (T1DM) who ...

Introduction: Idiopathic short stature(ISS) refers to children who are short because there is no identifiable defect in the growth hormone (GH)/insulin-like growth factor(IGF) axis and no other endocrine or genetic disorders. The genetic etiology of ISS in children was investigated in this study using targeted next-generation sequencing(NGS).Method: Eighty patients with short stature of unknown etiology were included in ...