Publications by authors named "Atıl Bisgin"

Pyruvate kinase (PK) is a key enzyme of anaerobic glycolysis. The genetic heterogeneity of PK deficiency (PKD) is high, and over 400 unique variants have been identified. Twenty-nine patients who had been diagnosed as PKD genetically in seven distinct paediatric haematology departments were evaluated.

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Objective: The objective of this multi-centre, real-world study was to examine the potential influence of comprehensive molecular profiling on the development of treatment decisions or adjustments for patients with advanced solid malignancies. We then evaluated the impact of these informed choices on patient treatment outcomes.

Methods: The study encompassed 234 adult patients (mean age: 52.

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Article Synopsis
  • * The study analyzed 15 patients diagnosed with GS2 from 2017 to 2022, finding that 73.3% developed HLH, with various presentations including central nervous system involvement.
  • * Treatment included using the HLH-2004 protocol and hematopoietic stem cell transplantation (HSCT); while those who had HSCT survived, three patients without suitable donors unfortunately did not.
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Aim: Next-generation sequencing (NGS) has been proposed as a comprehensive and efficient genomic profiling tool to guide personalized therapy for colorectal cancer. This study aimed to review the site-specific difference and the potential benefits of actionable mutation panel for colorectal cancer in relation to the clinicopathological features.

Material And Methods: One hundred and six patients who underwent colorectal surgery with curative or palliative intent for histopathologically confirmed carcinoma between June 2016 and June 2018 were identified from a prospectively maintained database.

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Article Synopsis
  • Testing for genetic variants in newly diagnosed breast cancer patients can lead to more effective treatments and better prevention strategies, ultimately reducing the disease burden.
  • Many developing countries, including Türkiye, struggle with low awareness and access to these important tests, which can result in delayed care and higher long-term healthcare costs.
  • This review aims to guide policymakers and healthcare providers in Türkiye to enhance the patient experience and improve healthcare pathways related to cancer care and prevention.
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Background: In colorectal cancer, the investigation of cancer pathogenesis and the determination of the relevant gene and gene pathways is particularly important to provide a basis for treatment-oriented studies. miRNAs which affect gene regulation in the molecular pathogenesis of cancer, have an active role in carcinogenesis. In the literature, miRNA expression levels have been associated with metastasis and prognosis in different cancers.

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Background And Purpose:

Neuro­fibromatosis type 1 (NF1) is a rare, auto­somal dominant multisystemic disease. The NF1 gene is localized on chromosome 17q11.2.

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Background: Ethylmalonic encephalopathy (EE) is a rare intoxication-type metabolic disorder with multisystem involvement. It is caused by mutations in ETHE1, which encodes the ETHE1 enzyme in the mitochondrial matrix that plays a key role in hydrogen sulfide (HS) detoxification acting as a sulphur dioxygenase.

Results: This review focuses on the clinical, metabolic, genetic and neuroradiological features of 70 reported cases, including two new cases.

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Objective: Breast cancer (BC) is the most common cancer type in women and may be inherited, mostly in an autosomal dominant pattern. The clinical diagnosis of BC relies on the published diagnostic criteria, and analysis of two genes, and , which are strongly associated with BC, are included in these criteria. The aim of this study was to compare BC index cases with non-BC individuals in terms of genotype and diagnostic features to investigate the genotype/demographic information association.

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Natural herbs and functional foods contain bioactive molecules capable of augmenting the immune system and mediating anti-viral functions. Functional foods, such as prebiotics, probiotics, and dietary fibers, have been shown to have positive effects on gut microbiota diversity and immune function. The use of functional foods has been linked to enhanced immunity, regeneration, improved cognitive function, maintenance of gut microbiota, and significant improvement in overall health.

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The most common cancer-related cause of death worldwide is colorectal cancer. It is initiated with the formation of polyps, which further cause the development of colorectal cancer in multistep phases. Colorectal cancer mortality is high despite recent treatment breakthroughs and a greater understanding of its pathophysiology.

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Despite recent therapy advances and a better understanding of colon cancer biology, it remains one of the major causes of death. The cancer stem cells, associated with the progression, metastasis, and recurrence of colon cancer, play a major role in promoting the development of tumour and are found to be chemo resistant. The stroma of the tumour, which makes up the bulk of the tumour mass, is composed of the tumour microenvironment.

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Thrombotic and microangiopathic effects have been reported in COVID-19 patients. This study examined the contribution of the hereditary thrombophilia factors Prothrombin (FII) and Factor V Leiden (FVL) genotypes to the severity of COVID-19 disease and the development of thrombosis. This study investigated FII and FVL alleles in a cohort of 9508 patients (2606 male and 6902 female) with thrombophilia.

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Insufficient dietary folate intake, hereditary malabsorption, or defects in folate transport may lead to combined immunodeficiency (CID). Although loss of function mutations in the major intestinal folate transporter PCFT/SLC46A1 was shown to be associated with CID, the evidence for pathogenic variants of RFC/SLC19A1 resulting in immunodeficiency was lacking. We report two cousins carrying a homozygous pathogenic variant c.

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Objective: Bartter syndrome and Gitelman syndrome are rare inherited tubulopathies characterized by hypokalemic, hypochloremic metabolic alkalosis. This study aimed to clarify the frequency of the phenotypic and genotypic subgroups, clinical features, long-term management, and prognosis of children diagnosed with Bartter syndrome and Gitelman syndrome in this study.

Materials And Methods: Twenty-seven patients with Bartter syndrome and 6 patients with Gitelman syndrome, who were followed up between 2004 and 2020 in a single center, were included in the study.

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Aceruloplasminemia inherited autosomal recessively in the gene is a progressive disease with iron accumulation in various organs such as the brain, liver, pancreas, and retina. gene encodes ceruloplasmin protein, which has ferroxidase activity and is involved in copper and iron metabolism. Progressive neurotoxicity, retinopathy, and diabetes may develop in about 40-60 decades.

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Since insulin deficiency results from pancreatic beta-cell destruction, all type 1 and most type 2 diabetes patients eventually require life-long insulin injections. Insulin gene synthesis could also be impaired due to insulin gene mutations as observed in diabetic patients with MODY 10. At this point, insulin gene therapy could be very effective to recompense insulin deficiency under these circumstances.

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Article Synopsis
  • The study investigates the genetic factors, specifically ACE2 and TMPRSS2 gene variants, that may influence the variability in COVID-19 symptoms among infected individuals by analyzing data from 946 whole-exome sequences.* -
  • Most variants found were intronic, with only two ACE2 and three TMPRSS2 variants detected, indicating a lack of certain genetic variants typically associated with increased susceptibility to COVID-19 in the Turkish population.* -
  • The research helps establish a national genetic variation database and could aid future investigations into how these gene variants impact SARS-CoV-2 infection across different populations.*
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BRCA1/2 mutations play a significant role in cancer pathogenesis and predisposition particularly in breast, ovarian and prostate cancers. Thus, germline analysis of BRCA1 and BRCA2 is essential for clinical management strategies aiming at the identification of recurrent and novel mutations that could be used as a first screening approach. We analyzed germline variants of BRCA1/2 genes for 2168 individuals who had cancer diagnosis or high risk assessment due to BRCAs related cancers, referred to 10 health care centers distributed across 7 regions covering the Turkish landscape.

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Objectives: In this study, we aimed to investigate the performance of Eurofever Registry and the Paediatric Rheumatology International Trials Organisation (PRINTO) classification criteria in pediatric patients with familial Mediterranean fever (FMF).

Patients And Methods: This retrospective, cross-sectional study included a total of 130 pediatric FMF patients (67 males, 63 females; mean age: 12.4±3.

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Purpose: SARS-CoV-2-infected individuals may be asymptomatic, and therefore, the virus is highly contagious. We aimed to develop an agent to control viral replication in the upper respiratory tract and to prevent progression of the disease into the lower airways as well as inter-individual transmission. For this purpose, we investigated the antibacterial and antiviral activities of our novel nanobubble ozonated hyaluronic acid-decorated liposomal (NOHAL) solution, developed by using nanotechnology.

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Familial Mediterranean fever (FMF) is a monogenic autoinflammatory disorder with recurrent fever, abdominal pain, serositis, articular manifestations, erysipelas-like erythema, and renal complications as its main features. Caused by the mutations in the MEditerranean FeVer (MEFV) gene, it mainly affects people of Mediterranean descent with a higher incidence in the Turkish, Jewish, Arabic, and Armenian populations. As our understanding of FMF improves, it becomes clearer that we are facing with a more complex picture of FMF with respect to its pathogenesis, penetrance, variant type (gain-of-function vs.

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Objectives: Lubricin, encoded by the proteoglycan 4 () gene, is mainly responsible for lubricating joints. However, there is expanding evidence on its involvement in inflammatory pathways. Juvenile idiopathic arthritis (JIA) is a heterogeneous group of chronic arthritides with an unknown origin in children aged below 16 years.

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