Publications by authors named "Cakmakoglu B"

Objective: Immune-related gene expression levels in the tumor microenvironment (TM) of head and neck squamous cell carcinoma (HNSCC) patients was compared.

Materials And Methods: The CD163, CD274, CD86, FUT4, FOXP3, and ITGAX levels of HNSCC patients in their tumor tissues (n =76) and surrounding tissues adjacent to the tumor (n =76) were determined using quantitative real-time PCR (qRT-PCR). Changes in these genes were also evaluated by associating with demographical data of the patients.

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In this study, our aim was to investigate the epidermal growth factor (EGF) and epidermal growth factor receptor (EGFR) gene polymorphisms in oral squamous cell carcinoma (OSCC) patients and non-OSCC healthy controls. This case-control study comprised 89 OSCC and 107 healthy controls by using polymerase chain reaction (PCR) and restriction fragment length polymorphism methods, the genotypes for EGF + 61 A > G (rs4444903) and EGFR R497K (rs2227983) were analyzed. According to the EGF + 61 A > G genotype distribution, individuals with the GG genotype were more prevalent in the OSCC group when compared to the healthy controls.

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Objective: Oral squamous cell carcinoma (OSCC) is a severe form of cancer affecting different anatomic sites of the oral cavity. OSCC ranks as the sixth most common cancer type with an increasing prevalence globally. However, the mechanisms of OSCC process at later stages are not well understood.

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Article Synopsis
  • * The study tested different concentrations of cisplatin and amoxicillin/clavulanic acid on cancer cell lines, revealing that the combination reduced the cytotoxic effects of cisplatin alone, though amx/cla alone showed minimal impact.
  • * Findings suggest that using certain antibiotics alongside chemotherapy could potentially alter treatment outcomes, indicating the need for cautious consideration of antibiotic use in cancer therapy based on the type of cancer and antibiotic.
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Background/aim: Oral squamous cell carcinoma (OSCC) is a malign tumor that associated with smoking and alcohol consumption, eating habits, environmental factors, and genetic susceptibility of the individuals. The Survivin gene, also known as BIRC5, plays important roles in the regulation of the cell cycle and apoptosis. The aim of the present study is to investigate Survivin -31G/C polymorphism in OSCC development and prognosis.

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Objectives: Betulinic acid is pentacyclic triterpenoid known to exert antitumor effects by modulating many cellular pathways in various human malignancies. However, its modulatory role in autophagy in renal cell carcinoma remains unclear. Here, we observed how betulinic acid affects autophagy in renal cell carcinoma cells.

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Renal cancer is the most lethal urological cancer and characterized by high metastasis rate at initial diagnosis and drug resistance to current chemotherapeutics. Betulinic acid is a pentacyclic triterpene with broad biological activity that occurs naturally in variety of plants. Even though the anti-cancer efficacy of betulinic acid have been reported by many studies, the information about the pathways and the molecules which are affected by betulinic acid in renal cancer are limited.

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Objective: Renal cancer is the most lethal among urological cancer. Treatments of renal cell carcinoma (RCC) may be possible by immune checkpoint inhibitors and drug treatment targeting different molecules. We aimed to determine the apoptotic effect of betulinic acid and its effects on expressions of apoptosisassociated genes AKT-1 and mTOR in RCC cells.

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Aim: Acacetin is a natural flavone compound, which is found in several plants as Robinia pseudoacacia and is demonstrated to have anticancerogenic activities in many types of cancer (e.g., human nonsmall cell lung cancer, and prostate).

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Recently, studies on the effects of non-toxic substances on cancer prophylaxis have gained value as an alternative to existing treatment options. Current studies have shown that succinic acid or its derivatives exhibit anticancer activity by inducing apoptosis. We aimed to investigate the anticancer activity of succinic acid on renal cancer for the first time in the literature.

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Objectives: The loss of function of the E-cadherin (CDH1) gene with -160 C→A and -347 G→GA polymorphisms is regarded as a critical step for gastric cancer. It was aimed to investigate possible association of these polymorphisms and immunoexpression of E-cadherin with gastric cancer.

Material And Methods: Gastric adenocarcinoma patients and individuals with benign gastric pathologies were included in this case-control study.

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Objective: The purpose of this study was to investigate the frequency of monocyte chemoattractant protein (MCP)-1 CCR2 gene polymorphisms in Turkish patients with oral lichen planus (OLP).

Study Design: A cohort of 50 patients with OLP and 142 control participants without OLP were recruited to investigate the frequency of MCP-1 and CCR2 gene polymorphisms. Chi-square and Fisher's exact tests were used.

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Oral squamous cell carcinoma patients are exhausted against the powerful chemotherapies, radiotherapies after the surgery, and their immune system is devastated during the process and antibiotic usage become inescapable. Although prescribing an antibiotic might be fraught for such as drug interaction and undesirable proliferation danger, studies still look for the new ideas such as antibiotic combinations that might be safe to use. The antiproliferative and apoptotic outcomes of levofloxacin with cisplatin combination as well as their single usage were examined with WST-1, Caspase-3/BCA and Annexin V methods on SCC-15 cells and a healthy cell line (MRC-5).

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Background And Aims: Although several treatment regimens for T-cell acute lymphoblastic leukemia (T-ALL), trouble is still ongoing that relapse of disease after therapies in both pediatric and adult patients. Hence, the demand for new alternative therapeutics that are antiproliferative for cancer cells but do not harm healthy cells in treatments is increasing day by day. This study aimed to investigate whether succinic acid show anti-proliferative and apoptotic effect of on T-ALL cell lines.

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CD55 and CD59 are complement regulatory proteins suggested to be related with progression of diabetes and its complications. The stromal cell-derived factor 1 (SDF-1) and C-X-C chemokine receptor type 4 (CXCR-4) are chemokine proteins. We aimed to investigate the relation of CD55 and CD59 expression levels and polymorphisms of SDF-1 and CXCR-4 with type 2 diabetes mellitus (T2DM) and its complications.

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Oral cavity cancers have anatomically a big part of the body system and include several types of cancer. The aim of the study is to investigate the relation between XPG and XPD gene variants in the DNA repair system and oral squamous cell cancers. A total of 111 patients with a pathologic diagnosis of oral squamous cell carcinoma and a control group of 148 healthy volunteers who presented to Istanbul Faculty of Medicine, Department of Otolaryngology & Head and Neck Surgery and Dentistry Faculty were included in the study.

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Objective: We aimed to assess resistin gene polymorphisms, namely 420C > G and 62G > A and their effect on the risk of endometrial cancer (EC).

Materials And Methods: Between January 2012 and January 2015, of the total of 183 patients diagnosed with EC, 94 patients were enrolled into the study. Patients with diabetes mellitus, hypertension and history of any other cancer were excluded.

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Oral squamous cell carcinoma (OSCC) is a common type of cancer that genetic and environmental factors also lifestyle habits, infections play important roles in the pathogenesis of disease. Cyclooxygenase 2 (COX2) is the inducible isoform of enzyme which convert arachidonic acid to prostaglandins. It was known that alterations in COX2 gene functions contribute to the inflammation process thus induce cancer progression, including cell proliferation, apoptosis, adhesion, invasion and metastasis.

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Given the prevalence and annual incidence of cancer, head and neck cancer is affecting more than 600,000 people each year. In this research, it was decided to investigate that which genes are involved and how MPO, NQO1, SOD2 enzyme levels effective to develop of head and neck cancer and for the first time at the tissue level. 35 tumor tissues in all head and neck anatomy and their surrounding tissue (70 in total) were enclosed the research that received surgery.

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Objectives: Colon cancer is risen up with its complex mechanism that directly impacts on its treatment as well as its common prevalence. Mesenchymal stem cells (MSCs) have been considered as a therapeutic candidate for conventional disease including cancer. In this research, we have focused on apoptotic effects of adipose tissue-derived MSCs in colon cancer.

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Endometrial carcinoma (EC) is the most common malignant gynecologic tumor in women. EC is thought to be caused by increasing estrogen levels relative to progesterone in the body. Hesperidin (Hsd), a biologically active flavonoid, could be extracted from Citrus species.

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Reactive oxygen species (ROS) have been shown to be responsible for inducing DNA damage leading to mutagenesis, carcinogenesis, and cell death if the capacity of the protective antioxidant system is impaired. Endometrial carcinoma is the primary cancer type in the female genital system. The enhanced cell lipid peroxidation and impaired antioxidant enzyme activities observed in patients with endometrial cancer indicate the potential for oxidative injury to cells and cell membranes in such patients.

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Objective: Autism spectrum disorders (ASD) have a complex pathophysiology including genetic, inflammatory and neurodevelopmental components. We aim to investigate the relationship between ASD and gene polymorphisms of stromal cell-derived factor-1 (SDF-1) and its receptor CXC chemokine receptor-4 (CXCR4), which may affect inflammatory and neurodevelopmental processes.

Methods: 101 children diagnosed with ASD aged 2-18 and their biological parents were included in the study.

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Endometrium cancer is the most common invasive gynecologic malignancy in developed countries. Succinic acid (CO2HCH2-CH2CO2H) is a type of dibasic acid that has uncolored crystal. Succinic acid is used in bakery products and aromatized products.

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Background: Obsessive-compulsive disorder (OCD) is a major psychiatric disorder identified mostly by obsessions and compulsions. Molecular genetic and gene-expression studies focused on familial and twin cases have shown a wide variety of variant genes related to OCD.

Objectives: The aim of the study was to investigate DNA repair genes as potential molecular markers in OCD by evaluating the distribution of polymorphisms of DNA repair genes in OCD patients.

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