Publications by authors named "Ruveyde Bundak"

Objective: Brain tumors in childhood carry a high risk for endocrine disorders due to the direct effects of the tumor and/or surgery and radiotherapy. Somatotropes are vulnerable to pressure and radiotherapy; therefore, growth hormone deficiency is one of the most frequent abnormalities. This study aimed to evaluate endocrine disorders and recombinant growth hormone treatment outcomes in brain tumor survivors.

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Objective: Reports on the association between growth hormone (GH) therapy and cardiovascular risk factors in children are limited. This study aimed to evaluate carotid intima-media thickness (cIMT) in children treated with recombinant human GH (rhGH) and assess the effects of rhGH therapy and changes in serum carbohydrate metabolism, lipid profile and adipocytokines on cIMT.

Methods: Seventy-one isolated idiopathic GH deficiency (GHD) children and 44 age- and sex-matched healthy controls were enrolled in this study.

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Trichorhinophalangeal syndrome (TRPS) is an extremely rare autosomal dominant multisystem disorder characterized by craniofacial and skeletal abnormalities. Three subtypes of TRPS have been described: TRPS type I, TRPS type II, and TRPS type III. Mutations in the TRPS1 gene can cause both TRPS type I and TRPS type III.

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Objective: Using World Health Organization (WHO) standards in pediatric practice is still controversial in many countries. It is suggested that national growth charts best reflect the genetic and ethnic characteristics of a population. The aim of this study was to compare length/height, body weight, and body mass index (BMI) in healthy Turkish children of ages 0 to 18 with those proposed by WHO as the international growth standards.

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Objective: Androgen insensivity syndrome (AIS) and 5α-reductase deficiency (5α-RD) present with indistinguishable phenotypes among the 46,XY disorders of sexual development (DSD) that usually necessitate molecular analyses for the definitive diagnosis in the prepubertal period. The aim was to evaluate the clinical, hormonal and genetic findings of 46,XY DSD patients who were diagnosed as AIS or 5α-RD.

Methods: Patients diagnosed as AIS or 5α-RD according to clinical and hormonal evaluations were investigated.

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Central precocious puberty (CPP) is defined as the appearance of secondary sexual signs in girls younger than eight years of age or the onset of menarche before the age of 10 years. Gonadotropin-releasing hormone analogs (GnRHa) are the most effective therapy in CPP. Drug-induced hypersensitivity vasculitis is an inflammation of blood vessels, which may be due to the use of a number of pharmacologic agents.

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Objectives:  Precocious puberty indicates quick growth inception and delayed puberty indicates retardation in growth. This study aimed to investigate whether dental development is synchronous with somatic development.

Materials And Methods:  In this study, 62 girls and 34 boys with precocious puberty aged 5 to 9, 29 girls with delayed puberty aged 13 to 16, and 43 boys with delayed puberty aged 14 to 17; 169 children (91 girls and 78 boys) with normal development were compared about their dental ages through their panoramic radiographs by using the Demirjian method and skeletal ages from hand-wrist radiographs by using Greulich-Pyle atlas.

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Next-generation sequencing technology and advanced sequence analysis techniques are markedly speeding up the identification of gene variants causing rare genetic diseases. Pseudoachondroplasia (PSACH, MIM 177170) is a rare disease inherited in an autosomal dominant manner. It is known that variations in the cartilage oligomeric matrix protein (COMP) gene are associated with the disease.

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Background: Diabetes diagnosed within the first 6 months of life is defined as neonatal diabetes mellitus (NDM). Mutations in the KCNJ11, ABCC8, and INS genes are the most common cause of permanent NDM. In populations with a high rate of consanguinity, Wolcott-Rallison syndrome caused by biallelic EIF2AK3 mutations is common.

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Background Chronic inflammation plays a critical role in the development of obesity-related metabolic dysfunction. The tri-ponderal mass index (TMI) may be more effective than body mass index (BMI) for estimating body fat levels. This study compared the efficacy of BMI and TMI in screening for dyslipidemia, insulin sensitivity, and inflammation in childhood obesity.

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Objective: Type 1 diabetes (T1D) is a disease characterized by severe insulin deficiency. In 2008 our group studied the prevalence of diabetes in adults between 20-80 years of age in Cyprus but data regarding this incidence in the pediatric population is lacking. The objective of this study was to report the incidence of T1D among permanent inhabitants aged 16 years or younger between 2001-2016 in Cyprus.

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Background/aim: This study aims to investigate the association between polycystic ovary syndrome (PCOS) and obesity and insulin resistance (IR) with respect to anti-Müllerian hormone (AMH), inhibin A (INH-A), inhibin B (INH-B), and insulin-like peptide 3 (INSL3) levels, all factors which may have an impact on IR.

Materials And Methods: In this cross sectional study, 52 adolescent girls diagnosed with PCOS[groups:nonobese (NO), n = 23; overweight/obese (OW/O), n = 29] were included. Blood samples were obtained to measure AMH, INH-B, INH-A, and INSL3 levels, together with hormonal and biochemical assessments.

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Joubert syndrome (JS) and JS-related disorders are a group of developmental delay, multiple congenital anomalies and complex midbrain-hindbrain malformations. A few cases of JS with multiple pituitary hormone deficiency (MPHD) have been reported in literature. Here, we presented an unusual presentation of JS in a newborn with MPHD.

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Objective: Tri-ponderal mass index (TMI) has been reported to estimate body fat more accurately than body mass index (BMI). This study aimed to compare the efficacy of TMI and BMI in predicting insulin resistance (IR), hyperlipidemia, impaired liver enzymes or thyroid hormone function and vitamin D concentration.

Methods: One hundred and forty-three overweight or obese children, based on BMI-standard deviation (SD) scoring (BMI-SDS) were studied retrospectively.

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Objective: Management protocols for pediatric diabetic ketoacidosis (DKA) vary considerably among medical centers. The aim of this study was to investigate the efficacy and safety of 3 different fluid protocols in the management of DKA.

Methods: Fluid management protocols with sodium contents of 75, 100, and 154 mEq/L NaCl were compared.

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Study Objective: Risks associated with precocious puberty might be observed in the rapidly progressive form of borderline early puberty (BEP). Differentiating the rate of progression is important for deciding treatment with gonadotropin-releasing hormone analogue (GnRHa). The aim was to examine the treatment characteristics and effect of treatment on predicted adult height (PAH).

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Yetim A, Alikaşifoğlu M, Baş F, Eliaçık K, Çığ G, Erginöz E, Ercan O, Bundak R. Glycemic control and health behaviors in adolescents with type 1 diabetes. Turk J Pediatr 2018; 60: 244-254.

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Central precocious puberty (CPP) or early puberty (EP) is a rare entity in combined pituitary hormone deficiency (CPHD), the latter caused by mutations in pituitary transcription factor genes. The early onset of puberty in two patients with CPHD with POU1F1 gene mutation was evaluated. A 3-month-old boy was diagnosed with central hypothyroidism, and L-thyroxine was commenced.

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Objective: Histopathological changes in the kidney in type 1 diabetes mellitus (T1DM) begin before detection of microalbuminuria. Therefore, there is interest in finding a better biomarker for the early detection of diabetic kidney injury. The aim of this present study was to determine whether urinary indicators of fibrosis are detectable early in the development of T1DM in children and if they may predict progressive renal injury.

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Objective: To assess the incidence of type 1 diabetes mellitus (T1DM) in children under 18 years of age in the northwest region of Turkey during 2013-2015.

Methods: All newly diagnosed T1DM cases were recorded prospectively during 2013-2015. Total, as well as gender and age group specific (0-4, 5-9, 10-14 and 15-17 age) mean incidences per 100,000 per year were calculated.

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Unlabelled: Congenital adrenal hyperplasia (CAH) due to 11β-hydroxylase deficiency (11BOHD) is a rare autosomal recessive disorder and the second most common form of CAH.

Aim: To investigate genotype-phenotype correlation and to evaluate clinical characteristics and long-term outcomes of patients with 11BOHD.

Methods: A total of 28 patients (n = 14, 46,XX; n = 14, 46,XY) with classical 11BOHD from 25 unrelated families were included in this study.

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Objective: 17α-hydroxylase/17,20 lyase deficiency (17OHD) is a rare form of congenital adrenal hyperplasia (CAH), characterized by hypertension and varying degrees of ambiguous genitalia and delayed puberty. The disease is associated with bi-allelic mutations in the gene located on chromosome 10q24.3.

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Factors associated with aortic dilation and dissection in patients with Turner syndrome (TS) remain unclear. We assessed magnetic resonance imaging-based aortic diameters at nine predefined anatomic positions and examined associations of increased aortic diameters with B-type natriuretic peptide (BNP), A-type NP (ANP), growth hormone treatment, insulin-like growth factor 1 (IGF1), and estrogen status. Forty-seven patients with TS aged 7.

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Objective: Klinefelter syndrome (KS) is the most common (1/500–1/1000) chromosomal disorder in males, but only 10% of cases are identified in childhood. This study aimed to review the data of children with KS to assess the age and presenting symptoms for diagnosis, clinical and laboratory findings, together with the presence of comorbidities.

Methods: Twenty-three KS patients were analyzed retrospectively.

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BackgroundIn this study, we examined the hypothesis that weight gain and linear growth during the first years of life influence the onset of puberty both in girls and in boys.MethodsA cohort of 157 healthy children, aged 6-9 years, was evaluated and their growth patterns were analyzed retrospectively. Repeated measures mixed model was used to examine the longitudinal anthropometric data.

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