Central Adrenal Insufficiency: Etiology and Diagnostic Approach.

Central adrenal insufficiency (CAI) occurs due to a pituitary gland disorder (secondary AI) or hypothalamic dysfunction (tertiary AI). It is a potentially life-threatening condition that has many congenital and acquired causes. Adrenocorticotropic hormone (ACTH) deficiency may be isolated or more commonly it can be accompanied by other pituitary hormone deficiencies or midline defects.

Clinical and molecular spectrum along with genotype-phenotype correlation of 25 patients diagnosed with 3 M syndrome: a study from Turkey.

Unlabelled: 3 M syndrome is a well-known autosomal recessive skeletal genetic disorder caused by biallelic pathogenic variants in the CUL7, OBSL1, and CCDC8 genes. Affected individuals exhibit profound pre- and postnatal growth retardation, distinctive facial features with normal intelligence. This study aims to provide insight into the comprehensive evaluation of clinical, laboratory, and radiological findings, expand the mutational spectrum of the disease, and establish a genotype-phenotype correlation in the present cases.

Evaluation of Growth Characteristics and Final Heights of Cases Diagnosed with Noonan Syndrome on GH Treatment.

Introduction: Proportional short stature is one of the most important features of Noonan Syndrome, and adult height often remains below the 3rd percentile. Although the pathophysiology of short stature in NS patients is not fully understood, it has been shown that GH treatment is beneficial in NS, and it significantly improves the height in respect to the results of short and long-term GH treatment.

Methods: In this study, the efficacy of GH therapy was evaluated in children and adolescents with Noonan syndrome who attained final height.

Inequalities in Access to Diabetes Technologies in Children with Type 1 Diabetes: A Multicenter, Cross-sectional Study from Türkiye.

Objective: To determine inequalities in access to diabetes technologies and the effect of socioeconomic factors on families with children with type 1 diabetes.

Methods: In this multicenter cross-sectional study, parents of children with type 1 diabetes completed a questionnaire about household sociodemographic characteristics, latest HbA1c values, continuous glucose monitoring (CGM) and insulin pump use of children, the education and working status of parents. These characteristics were compared between technology use (only-CGM, only-pump, CGM+pump, no technology use).

Electroencephalographic abnormalities in children with type 1 diabetes mellitus: a prospective study.

Background/aim: The aim herein was to investigate epileptiform discharges on electroencephalogram (EEG), their correlation with glutamic acid decarboxylase 65 autoantibody (GAD-ab) in newly diagnosed pediatric type 1 diabetes mellitus (T1DM) patients and interpret their medium-term utility in predicting epilepsy.

Materials And Methods: Children presenting with T1DM between July 2018 and December 2019 were included in this prospective longitudinal study. Patients with a history of head injury, chronic illness, neurological disorder, seizure, autism, or encephalopathy were excluded.

Variant characterisation and clinical profile in a large cohort of patients with Ellis-van Creveld syndrome and a family with Weyers acrofacial dysostosis.

Background: Ellis-van Creveld syndrome (EvC) is a recessive disorder characterised by acromesomelic limb shortening, postaxial polydactyly, nail-teeth dysplasia and congenital cardiac defects, primarily caused by pathogenic variants in or . Weyers acrofacial dysostosis (WAD) is an ultra-rare dominant condition allelic to EvC. The present work aimed to enhance current knowledge on the clinical manifestations of EvC and WAD and broaden their mutational spectrum.

Evaluation of cardiac electrophysiological features in patients with premature adrenarche.

Objectives: This study aimed to analyze the cardiac effects of hyperandrogenism in premature adrenarche (PA) and evaluate the risk of arrhythmia development.

Methods: Fifty patients with PA and 50 healthy children from a pediatric endocrinology outpatient clinic were included in the study. The patients underwent echocardiography and electrocardiographic evaluations.

Clinical Variability in a Family with Noonan Syndrome with a Homozygous Gene Variant in Two Individuals.

Objective: Noonan syndrome (NS) is characterized by dysmorphic facial features, short stature, congenital heart defects, and varying levels of developmental delays. It is a genetic, multisystem disorder with autosomal dominant inheritance and is the most common of the RASopathies. In approximately 50% of patients, NS is caused by variants in the Protein Tyrosine Phosphatase Non-Receptor Type 11 () gene.

Clinical features, diagnosis and treatment outcomes of Cushing's disease in children: A multicenter study.

Objective: Since Cushing's disease (CD) is less common in the paediatric age group than in adults, data on this subject are relatively limited in children. Herein, we aim to share the clinical, diagnostic and therapeutic features of paediatric CD cases.

Design: National, multicenter and retrospective study.

Isolated hypogonadotropic hypogonadism in adolescence: Do we need to measure the pituitary, stalk or other imaging markers? A retrospective magnetic resonance imaging study.

Background: Rapid changes in the size of the pituitary gland occur during the pubertal period. Therefore, measuring and reporting magnetic resonance imaging (MRI) in adolescents with pituitary disorders can cause unease among radiologists. Our aim was to compare the size of the pituitary gland, stalk and other previously described imaging tools in patients with isolated hypogonadotropic hypogonadism (HH) versus adolescents with a normal pituitary gland.

Noonan syndrome: Neuroimaging findings and morphometric analysis of the cranium base and posterior fossa in children.

Background And Purpose: There are a few studies regarding intracranial findings in neonates with Noonan syndrome (NS); however, there are no quantitative analyses in a pediatric population. The aim of this study was to find characteristic intracranial abnormalities and to quantitatively analyze the posterior fossa and cranium base in children with NS.

Methods: A total of 30 patients (11 females and 19 males, mean age 13.

The clinical and laboratory features of patients with triple A syndrome: a single-center experience in Turkey.

Aim: Triple-A Syndrome (TAS) is a rare autosomal recessive disorder characterized by adrenal insufficiency, achalasia, and alacrimia. This disorder is caused by mutations in the AAAS gene. The aim of this study is to discuss the clinical, laboratory and molecular genetic analysis results of 12 patients with TAS.

Comprehensive Genetic Analysis of RASopathy in the Era of Next-Generation Sequencing and Definition of a Novel Likely Pathogenic > Variation.

Introduction: Germline pathogenic variations of the genes encoding the components of the Ras-MAPK pathway are found to be responsible for RASopathies, a clinically and genetically heterogeneous group of diseases. In this study, we aimed to present the results of patients genetically investigated for RASopathy-related mutations in our Genetic Diagnosis Center.

Methods: The results of 51 unrelated probands with RASopathy and 4 affected relatives (31 male, 24 female; mean age: 9.

Revisiting the Annual Incidence of Type 1 Diabetes Mellitus in Children from the Southeastern Anatolian Region of Turkey: A Regional Report.

Objective: The incidence of type 1 diabetes mellitus (T1D) in children has an increasing trend globally, with a variable rate depending on region and ethnicity. Our group first reported T1D incidence in Diyarbakır in 2011. The aim of this study was to evaluate the current incidence rate of pediatric T1D in Diyarbakır, and compare the incidence, and clinical and presenting characteristics of more recent cases with those reported in our first report.

Targeted High-Throughput Sequencing Analysis Results of Osteogenesis Imperfecta Patients from Different Regions of Turkey.

Osteogenesis imperfecta (OI) includes a group of disorders characterized by susceptibility to bone fractures with different severities. The increasing number of genes that may underlie the disorder, along with the broad phenotypic spectrum that overlaps with other skeletal diseases, provided a compelling case for the use of high-throughput sequencing (HTS) technology as an aid to OI diagnoses. The aim of this analysis was to present the data from our 5-year targeted HTS results, that includes the reporting of 9 novel and 24 known mutations, found in OI patients, from 5 different regions of Turkey.

Left and right ventricular functions may be impaired in children diagnosed with subclinical hypothyroidism.

Subclinical hypothyroidism (SH) may influence both ventricular functions. The aim of this study was to evaluation the findings of Tissue Doppler Imaging (TDI) and other echocardiography modalities in children with SH. We compared left ventricular mass index (LVMI) and TDI parameters of patients with SH and children with euthyroidism.

YIPF5 mutations cause neonatal diabetes and microcephaly through endoplasmic reticulum stress.

Neonatal diabetes is caused by single gene mutations reducing pancreatic β cell number or impairing β cell function. Understanding the genetic basis of rare diabetes subtypes highlights fundamental biological processes in β cells. We identified 6 patients from 5 families with homozygous mutations in the YIPF5 gene, which is involved in trafficking between the endoplasmic reticulum (ER) and the Golgi.

Cytochrome P450 oxidoreductase deficiency caused by a novel mutation in the POR gene in two siblings: case report and literature review.

Introduction: P450 oxidoreductase (POR) deficiency is a rare form of congenital adrenal hyperplasia. In both genders, it can lead to ambiguous genitalia, impaired steroidogenesis, and skeletal findings similar to those of Antley-Bixler syndrome.

Cases: We describe two cases of POR deficiency.

Clinical Characteristics and Long-term Follow-up of Patients with Diabetes Due To PTF1A Enhancer Mutations.

Context: Biallelic mutations in the PTF1A enhancer are the commonest cause of isolated pancreatic agenesis. These patients do not have severe neurological features associated with loss-of-function PTF1A mutations. Their clinical phenotype and disease progression have not been well characterized.

A rare cause of delayed puberty in two cases with 46,XX and 46,XY karyotype: 17 α-hydroxylase deficiency due to a novel variant in gene.

17α-hydroxylase deficiency is a rare form of congenital adrenal hyperplasia (CAH) which is inherited autosomal recessive. It occurs result of a mutations in gene cytochrome , which encodes both 17α-hydroxylase and 17,20-lyase enzymes. The main clinical findings of the disease are delayed puberty, primary amenorrhea in females, and disorders of sex development (DSD) in males.

Nationwide Turkish Cohort Study of Hypophosphatemic Rickets.

Objective: Hypophosphatemic rickets (HR) is a rare renal phosphate-wasting disorder, which is usually X-linked and is commonly caused by PHEX mutations. The treatment and follow-up of HR is challenging due to imperfect treatment options.

Methods: Here we present nationwide initial and follow-up data on HR.

The molecular basis and genotype-phenotype correlations of congenital adrenal hyperplasia (CAH) in Anatolian population.

Congenital adrenal hyperplasia (CAH) is an autosomal recessive genetic disorder due to presence of mutations in the genes involved in the metabolism of steroid hormones in adrenal gland. There are two main forms of CAH, classic form and non-classic form. While classic form stands for the severe form, the non-classic form stands for the moderate and more frequent form of CAH.

Management of Thyrotoxicosis in Children and Adolescents: A Turkish Multi-center Experience.

Objective: To determine the demographic and biochemical features of childhood and juvenile thyrotoxicosis and treatment outcome.

Methods: We reviewed the records of children from 22 centers in Turkey who were diagnosed with thyrotoxicosis between 2007 to 2017.

Results: A total of 503 children had been diagnosed with thyrotoxicosis at the centers during the study period.

A rare cause of neonatal hypoglycemia in two siblings: TBX19 gene mutation.

Congenital isolated adrenocorticotropic hormone (ACTH) deficiency (IAD) is a rarely seen disease characterized by low serum ACTH and cortisol levels accompanied by normal levels of the other anterior pituitary hormones. In these patients, severe hypoglycemia, convulsions, and prolonged cholestatic jaundice are expected findings in the neonatal period. In this paper, we present two siblings with TBX19 gene mutation.