Publications by authors named "Deniz Kizmazoglu"

Article Synopsis
  • The study aimed to determine if CASP8 could serve as a prognostic biomarker for neuroblastoma by analyzing its methylation and gene expression in tumor tissues from 37 patients.
  • Techniques like bisulfite PCR and reverse transcriptase-quantitative PCR were used to assess CASP8's methylation status and mRNA expression levels.
  • Findings showed that low CASP8 expression correlated with high-risk neuroblastoma characteristics, and its expression may have significant prognostic value based on data from larger databases like TARGET NBL and SEQC.
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Objectives: Neuroblastoma is the most common extracranial solid tumor in childhood. YAP (Yes-associated protein) is a highly expressed protein in NB. Nestin is an important marker of neuronal differentiation in NB.

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Infantile hemangiomas (IHs) are the most common benign vascular tumors of infancy. We report our experiences with 248 patients with head and neck IHs. The median admission age was 4 months, and the female/male ratio was 2.

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Primary pigmented nodular adrenocortical disease (PPNAD) is a rare genetic disease mainly associated with Carney complex (CNC), which is caused by germline mutations of the regulatory subunit type 1A (RIα) of the cAMP-dependent protein kinase (PRKAR1A) gene. We report three cases suffering from CNC with unique features in diagnosis and follow-up. All cases had obesity and a cushingoid appearance and exhibited laboratory characteristics of hypercortisolism.

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Background And Aim: In neuroblastoma, anaplastic lymphoma kinase mutations have recently received attention as molecular targets for the treatment of neuroblastoma, as 6% to 10% of patients with neuroblastoma have anaplastic lymphoma kinase mutations. There are little data from the cases in Turkey. We aimed to detect anaplastic lymphoma kinase mutations and molecular heterogeneity in neuroblastoma using next-generation sequencing.

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Neuroblastoma (NB) is the most frequent extracranial solid tumor of childhood, remarkable for its broad spectrum of clinical behavior. This diversity in behavior correlates closely with defined clinical and biological features and combinations of prognostic variables are used for risk-group assignment. S-100 proteins have roles in differentiation and were shown to be frequently dysregulated in NB.

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Background: Tribbles Homolog 3 (TRIB3) is a member of the pseudokinase family of tribbles and acts as an adaptor protein to regulate different cellular processes. Upregulation of TRIB3 expression was shown either as a favorable or an adverse prognostic factor in various adult malignancies. However, TRIB3 expression has not been examined in pediatric cancers.

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Background: There is considerable interest in the molecular evaluation of solid tumors in pediatric cases. Although clinical trials are in progress for targeted therapies against neuroblastoma (NB), novel therapeutic strategies are needed for high-risk cases that are resistant to therapy. The aim of the present study was to document the specific gene mutations related to targeted therapy in relapsed or refractory NB patients by using next generation sequencing (NGS).

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Purpose: The most important complication of paravertebral tumors is cord compression (CC), which is an oncologic emergency. Early and appropriate intervention is important in terms of reducing morbidity and mortality. Here, we report our clinical experience with paravertebral tumors.

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Background: Relapsed/refractory high-risk neuroblastoma has a dismal prognosis. Anti-GD2-mediated chemo-immunotherapy has a notable anti-tumor activity in patients with relapsed/refractory high-risk neuroblastoma. The purpose of this study was to analyze the efficacy and safety of the combination of immunotherapy with dinutuximab beta (DB) and chemotherapy in patients with relapsed/refractory high-risk neuroblastoma.

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Juvenile xanthogranuloma (JXG) is a common form of non-Langerhans cell histiocytosis, which usually presents with spontaneously regressing skin lesions. Systemic involvement is rare and mostly seen in patients with multiple skin nodules. It can spontaneously regress, but sometimes systemic involvement can cause life-threatening symptoms and can be fatal.

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Objectives: Thromboembolism is one of the most common complications during induction therapy of pediatric acute lymphoblastic leukemia (ALL). Procoagulant microparticles in the circulation may cause thromboembolic events. The aim of our study was to determine the levels of apoptotic, platelet-derived, endothelial-derived, and tissue factor-positive microparticles of children with ALL at diagnosis and during induction therapy.

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Objective: We investigated the health-related quality of life (HRQL) in survivors of pediatric acute lymphoblastic leukemia (ALL) and evaluated the perceptions of the children, their siblings, and their parents.

Materials And Methods: Seventy ALL survivors, who were between 7 and 17 years of age and had completed therapy ≥2 years, were included. The control group consisted of their healthy siblings.

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Objective: In acute lymphoblastic leukemia (ALL), various clinical risk factors and genetic predispositions contribute to the development of bone complications during and after chemotherapy. In this study, we aimed to investigate whether vitamin D receptor () and collagen protein Sp1-binding site gene polymorphisms, which are important in bone mineral and matrix formation, have effects on the development of bone abnormalities in childhood ALL survivors.

Materials And Methods: Fifty children with ALL who were treated with the ALL Berlin-Frankfurt-Muenster-95 protocol between 1998 and 2008 and were followed for at least 7 years were enrolled.

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Objective: The aim of this study was to analyse the genetic and non genetic risk factors for cisplatin ototoxicity.

Methods: This study was conducted on 72 children who received cisplatin based chemotherapy. Brock and Muenster classifications were used to evaluate ototoxicity seen in these children.

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Article Synopsis
  • The study investigates the effectiveness of the FLAG regimen (fludarabine, high-dose cytarabine, and granulocyte colony-stimulating factor) with or without idarubicin (IDA) in treating children with relapsed/refractory acute leukemia in resource-limited settings.
  • Out of 18 treated children, complete remission (CR) was achieved in 42.1% after two cycles, with better results seen in patients treated without IDA (50% CR) compared to those treated with it (28.6% CR).
  • The median survival duration for those who underwent hematopoietic stem cell transplantation (HSCT) was 24.7 months, suggesting that FLAG regimens can be a feasible option
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Objectives/hypothesis: Our objectives were to study effects of orally administered resveratrol (RV) against cisplatin (CDDP) ototoxicity in different doses and to investigate ultrastructural changes in the cochlea and brainstem.

Study Design: In vivo study using an animal model.

Methods: Thirty-two male Wistar albino rats were divided into six groups.

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