47 results on '"Silig, Yavuz"'
Search Results
2. The relationship between ASIC3 gene polymorphism and fibromyalgia syndrome
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Zontul Cemile, Tas Ayca, Hayta Emrullah, and Silig Yavuz
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fibromyalgia syndrome ,single nucleotide polymorphism ,acid-sensing ion channel 3 ,turkish population ,Biochemistry ,QD415-436 - Abstract
Fibromyalgia syndrome (FMS) is a chronic pain syndrome characterized by widespread body pain over a long period, the cause of which is not yet clearly known. FMS patients usually have high pain sensitivity. We aimed to investigate whether rs4148855 and rs2288646 polymorphisms of acid-sensing ion channel 3 (ASIC3), one of the factors contributing to pain, cause a predisposition to FMS in the Turkish population.
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- 2023
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3. Biological evaluation and in silico molecular docking studies of Abies cilicica (Antoine & Kotschy) Carrière) resin
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Guclu, Gulsen, Tas, Ayca, Dincer, Emine, Ucar, Esra, Kaya, Savaş, Berisha, Avni, Dural, Emrah, and Silig, Yavuz
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- 2023
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4. Experimental and theoretical insights about the effect of some newly designed azomethine group‐contained macroheterocycles on oxidative stress and DNA repair gene profiles in neuroblastoma cell lines
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Cinar, Gulcihan, Agbektas, Tugba, Huseynzada, Alakbar, Aliyeva, Gunel, Aghayev, Mirjavid, Hasanova, Ulviyya, Kaya, Savas, Chtita, Samir, Nour, Hassan, Tas, Ayca, and Silig, Yavuz
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- 2023
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5. Effect of azomethine group containing compounds on gene profiles in Wnt and MAPK signal patterns in lung cancer cell line: In silico and in vitro analyses
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Agbektas, Tugba, Zontul, Cemile, Ozturk, Alpaslan, Huseynzada, Alakbar, Ganbarova, Rana, Hasanova, Ulviyya, Cinar, Gulcihan, Tas, Ayca, Kaya, Savas, Chtita, Samir, and Silig, Yavuz
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- 2023
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6. Anticancer activity, hTERT expression and telomere length analysis in SH-SY5Y neuroblastoma cell lines applied to docetaxel
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Inandiklioglu, Nihal, Tas, Ayca, Agbektas, Tugba, Tuncbilek, Zuhal, Raheem, Kayode Yomi, Cinar, Gulcihan, and Silig, Yavuz
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- 2023
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7. Unveiling the Prognostic Potential of SLC2A Gene Family in Glioblastoma Multiforme Using Bioinformatics Approaches.
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Tas, Ayca and Silig, Yavuz
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GENE families , *GENE expression , *OVERALL survival , *GLIOBLASTOMA multiforme , *PROMOTERS (Genetics) - Abstract
Objective: Glioblastomas (GBMs) are invasive and metastatic cancers with very low overall survival rates. Therefore, it is very important to propose a new biomarker for GBM diagnosis and prognosis. For this purpose, we aimed to investigate the prognostic potential of the SLC2A gene family, which has great importance in cancer, in GBM. Methods: Solute carrier 2A (SLC2A) gene family expression levels, methylation and overall survival rates were analyzed with TCGA, GEPIA and UALCAN databases. Mutations were evaluated with Kaplan-Meier Plot and UCSC Xena database. Protein-protein interactions were analyzed with String database. Results: No statistically significant mutation was detected in the SLC2A gene family. As a result of the analysis, high expression in SLC2A1 and SLC2A5 genes and decrease in SLC2A6 gene expression were found to be statistically significant. Hypermethylation was detected in the promoter regions of SLC2A1, SLC2A2, SLC2A3 and SLC2A5 genes, while hypomethylation was detected in SLC2A4 and SLC2A6 genes. The increase in SLC2A3 gene expression was associated with the overall survival rate of the patients. Conclusion: SLC2A1, SLC2A5 and SLC2A6 gene up-regulation may be a biomarker in the diagnosis of GBM, and SLC2A3 may be a marker in prognosis. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Expression levels of some genes in the MAPK pathway (DUSP1, DUSP2, DUSP4, DUSP6 and DUSP10) in eyelid tumor tissue.
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Ozmen, Esma, Tas, Ayca, Akin, Dilara Fatma, Erdogan, Haydar, and Silig, Yavuz
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- 2024
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9. Expression levels of BAP1, OGT, and YY1 genes in patients with eyelid tumors
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Tas Ayca, Gumus Erkan, Ozmen Esma, Erdogan Haydar, and Silig Yavuz
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bap1 ,basal cell carcinoma ,expression ,eyelid ,ogt ,tumor ,yy1 ,bazal hücreli karsinom ,ekspresyon ,göz kapağı ,tümör ,Biochemistry ,QD415-436 - Abstract
The aim of this study was to investigate BAP1, OGT and YY1 genes and protein levels in 12 samples (8 males, 4 females) of eyelid tumor tissue with basal cell carcinoma (BCC) and 12 normal control subjects (8 males, 4 females).
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- 2021
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10. Expression levels of some genes in the MAPK pathway (DUSP1, DUSP2, DUSP4, DUSP6and DUSP10) in eyelid tumor tissue
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Ozmen, Esma, Tas, Ayca, Akin, Dilara Fatma, Erdogan, Haydar, and Silig, Yavuz
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- 2024
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11. Early Growth Response Protein [Egr] Levels in Patients with Fibromyalgia Syndrome
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Tas, Ayca, primary, Agbektas, Tugba, additional, Karadag, Ahmet, additional, Aydin, Süleyman, additional, Hayta, Emrullah, additional, and Silig, Yavuz, additional
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- 2023
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12. In Silico and In Vitro Studies of Novel Azomethines on DNA Repair Genes in Gastric Cell Lines
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Ozturk, Alpaslan, primary, Agbektas, Tugba, additional, Huseynzada, Alakbar, additional, Guliyev, Ruslan, additional, Ganbarova, Rana, additional, Hasanova, Ulviyya, additional, Tas, Ayca, additional, Erkan, Sultan, additional, Zontul, Cemile, additional, Inandiklioglu, Nihal, additional, and Silig, Yavuz, additional
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- 2023
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13. The relationship between ASIC3 gene polymorphism and fibromyalgia syndrome.
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Zontul, Cemile, Tas, Ayca, Hayta, Emrullah, and Silig, Yavuz
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- 2024
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14. The relationship between ASIC3gene polymorphism and fibromyalgia syndrome
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Zontul, Cemile, Tas, Ayca, Hayta, Emrullah, and Silig, Yavuz
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- 2023
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15. The relationship between serum prolidase activity and histone H3 protein levels and fibromyalgia
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Ozturk, Alpaslan, Agbektas, Tugba, Tas, Ayca, Gul, Mehmet Ali, Karadag, Ahmet, Silig, Yavuz, Tıp Fakültesi, and Sağlık Bilimleri Fakültesi
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Fibromyalgia ,Prolidase activity ,Histone H3 protein - Abstract
OBJECTIVE: Fibromyalgia (FM) is a clinical syndrome characterized by prominent physical and psychological impairment and widespread pain on both sides of the body, above and below the waist, and along the axial skeleton. It often causes sleep difficulties, memory impairment, mood changes, irritable bowel syndrome, and fatigue. Our study aimed to investigate the relationship between FM and prolidase (peptidase D) and histone H3 protein levels by comparing a patient group with a healthy control group. PATIENTS AND METHODS: In total, 176 people were examined in our study, 88 of whom were healthy and 88 of whom had FM. Serum level was measured by ELISA. Then the results were analyzed using SPSS. All p < 0.05 were considered statistically significant. RESULTS: A significant increase in the levels of prolidase was observed in the patient group compared with the control group (6.28-4.68, p
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- 2022
16. Potassium Ion Channel Protein (KCNH) Levels in Patients with Fibromyalgia Syndrome
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Tas, Ayca, primary, Hayta, Emrullah, additional, Karadag, Ahmet, additional, Zontul, Cemile, additional, Ozmen, Esma, additional, Aydin, Süleyman, additional, and Silig, Yavuz, additional
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- 2022
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17. Does dietary intake of acrylamide affect hydroxyproline levels? An animal study
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Agbektas, Tugba, primary, Pazarci, Ozhan, additional, Tas, Ayca, additional, Cakmak, Nese, additional, Kilinc, Seyran, additional, and Silig, Yavuz, additional
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- 2022
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18. Investigation of Early Growth Response Protein (EGR) Levels in Patients with Fibromyalgia Syndrome: A Cross-Sectional Study
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Tas, Ayca, Agbektas, Tugba, Karadag, Ahmet, Aydin, Süleyman, Hayta, Emrullah, and Silig, Yavuz
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Background: Fibromyalgia is a soft tissue rheumatism characterized by chronic and widespread musculoskeletal pain at specific points in the body.Objectives: In this study, we aimed to investigate the relationship between Early Growth Response (EGR1, EGR2, and EGR3) protein levels in patients with Fibromyalgia Syndrome (FMS) and healthy controls.Methods: In our studies, 76 FMS patient group and 78 healthy control group who were newly diagnosed with primary FMS according to the 2010 American College of Rheumatology criteria for fibromyalgia in Sivas Cumhuriyet University Hospital, Physical Therapy, and Rehabilitation were used. Venous blood samples were taken from both groups for the measurement of EGR1, EGR2, and EGR3 protein plasma levels, and protein levels were determined using ELISA methods. Statistical parametric test assumptions were compared using the Independent Student's t-test. In addition, specificity, sensitivity, and AUC values were calculated with the ROC curve.Results: The relationship between plasma EGR1 protein levels of FMS patients and control groups was statistically significant (p=0.001).Conclusion: EGR1 protein levels were found to be lower in the patient group diagnosed with FMS compared to the control group. It has been suggested that EGR1 protein levels can be important in the diagnosis of FMS disease.
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- 2023
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19. The Effect of Rectal Ozone Use on Bacterial Translocation and Oxidative Stress in Experimental Colitis Model.
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Bostanci, Meric Emre, Avci, Onur, Tas, Ayca, Koc, Tulay, Gursoy, Sinan, and Silig, Yavuz
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OZONE ,OXIDATIVE stress ,COLITIS ,SUPEROXIDE dismutase ,HISTOPATHOLOGY - Abstract
Objective: The aim of this study was to examine the effect of rectal ozone on the histopathological healing of the colonic mucosa, tissue oxidative stress, and bacterial translocation in the experimental colitis model. Materials and Methods: Three groups of rats were randomly formed [Group 1: Sham group, group 2: Control group, group 3: Ozone treatment group]. Microscopic and macroscopic scoring were done histopathologically in all groups. Glutathione-s-transferase (GST), superoxide dismutase (SOD), glutathione (GSH), and malondialdehyde (MDA) levels were measured in the colon and liver tissue. Blood cultures were taken for the detection of bacterial translocation. Results: Microscopic damage scores were found as 0.0 (0.0-2.0) in the sham group, 3.0 (3.0-3.0) in the control group, 2.0 (0.0-2.0) in the ozone treatment group (p=0.001). Macroscopic damage scores were found as 0.0 (0.0-1.0) in the sham group, 3.0 (0.0-4.0) in the control group, 0.0 (0.0-1.0) in the ozone treatment group; the scores of ozone treatment and sham groups were found to be statistically different (p=0.004). Compared to the control group, the bacterial translocation in the liver, mesenteric lymph node, portal vein, spleen, and systemic blood was fewer in the ozone treatment group. Statistically significant differences were also observed between the groups' SOD and GST levels in colon tissue and MDA, SOD, and GST levels in liver tissue. Regarding MDA values in the liver tissue of the groups, it was 1.95±0.43 in Group I, 3.63±0.81 in Group II, and 1.19±0.72 U/mg in Group III (p=0.017). When the liver tissue SOD levels of the groups were examined, it was 8.21±0.76 U/mg in Group I, 4.57±0.58 U/mg in Group II, and 8.62±1.13 U/mg in Group III (p=0.029). When GST values in liver tissue belonging to the groups were examined, 0.35±0.16 in Group 1, 0.23±0.03 in Group II, 0.49±0.13 U/mg in Group III (p=0.036). Conclusion: Rectal ozone application plays a role in increasing the organism's antioxidant activity and has an effective role in increasing the enzyme activities of antioxidant defenses. In addition, rectal ozone application has a positive effect on wound healing at a histopathological level and reduces bacterial translocation in various tissues. [ABSTRACT FROM AUTHOR]
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- 2022
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20. High levels of cathepsin S and cystatin C in patients with fibromyalgia syndrome
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Kocak, Ibrahim, primary, Hizmetli, Sami, additional, Tas, Ayça, additional, Karadag, Ahmet, additional, Zontul, Cemile, additional, and Silig, Yavuz, additional
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- 2020
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21. Significant Association of the MDM2 T309G Polymorphism with Breast Cancer Risk in a Turkish Population
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Yilmaz, Meral, Tas, Ayca, Donmez, Gonca, Kacan, Turgut, and Silig, Yavuz
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MDM2 T309G ,Adult ,Aged, 80 and over ,Genotype ,Turkey ,Breast Neoplasms ,Proto-Oncogene Proteins c-mdm2 ,Middle Aged ,polymorphism ,Young Adult ,Breast cancer ,Risk Factors ,Case-Control Studies ,Humans ,Female ,Genetic Predisposition to Disease ,Breast ,Murine double minute 2 ,Polymorphism, Restriction Fragment Length ,Research Article ,Aged - Abstract
Background: Breast cancer is a leading cause of death in women worldwide. Genetic polymorphisms have been reported to be important etiological factors. Murine double minute 2 (MDM2) T309G interacts with p53 and mutations in p53 are present in approximately 50% of all cancers. However, it has been reported that effect of the polymorphism on breast cancer risk may vary in different populations. Here, we therefore investigated whether there is an association between MDM2 T309G (rs2279744) polymorphism and breast cancer in a Turkish population. Materials and Methods: We analysed 110 patients with breast cancer and 138 matched? controls. For genotyping, polymerase chain reaction and restriction length fragment polymorphism methods were used. Results: A significant difference was observed between case and control groups with regard to the distribution of the MDM2 T309G polymorphism (p
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- 2018
22. Expression levels of BAP1, OGT, and YY1 genes in patients with eyelid tumors.
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Tas, Ayca, Gumus, Erkan, Ozmen, Esma, Erdogan, Haydar, and Silig, Yavuz
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EYELIDS ,BASAL cell carcinoma ,GENES ,PROTEIN expression ,TUMORS ,GENE expression - Abstract
Copyright of Turkish Journal of Biochemistry / Turk Biyokimya Dergisi is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2021
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23. Cytotoxic activity of zinc oxide/titanium dioxide nanoparticles on prostate cancer cells
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Tas, Ayca, primary, Keklikcioglu Cakmak, Nese, additional, Agbektas, Tugba, additional, and Silig, Yavuz, additional
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- 2019
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24. Anticancer Activity of Water and Methanol Extracts of Hypericum scabrum L. on Different Cancer Cell Lines
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GUCLU, Gulsen, primary, TAS, Ayca, additional, TULIMAT, Manhal, additional, ERUYGUR, Nuraniye, additional, and SILIG, Yavuz, additional
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- 2019
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25. The acute and chronic toxic effect of cypermethrin, propetamphos, and their combinations in rats
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Eraslan, Gokhan, Kanbur, Murat, Silig, Yavuz, Karabacak, Mursel, Sarica, Zeynep Soyer, Sahin, Serap, and [Eraslan, Gokhan -- Kanbur, Murat] Erciyes Univ, Dept Pharmacol & Toxicol, Fac Vet Med, Kayseri, Turkey -- [Silig, Yavuz] Cumhuriyet Univ, Dept Biochem, Fac Med, Sivas, Turkey -- [Karabacak, Mursel] Erciyes Univ, Dept Anim Hlth, Safiye Cikrikcioglu Vacat Collage, Kayseri, Turkey -- [Sarica, Zeynep Soyer] Erciyes Univ, Hakan Cetinsaya Expt Anim Ctr, Kayseri, Turkey -- [Sahin, Serap] Cumhuriyet Univ, Dept Biochem, Fac Pharm, Sivas, Turkey
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Cypermethrin ,rat ,propetamphos ,toxic effect - Abstract
WOS: 000388616700013, PubMed ID: 25926273, This study was aimed at determining the acute and chronic toxic effects of cypermethrin, propetamphos, and combined cypermethrin and propetamphos. Four groups, each comprising 10 animals, were established for the acute (a) and chronic (b) toxicity trials, and in total, 80 male Wistar albino rats were used. In the acute toxicity trial, the first group was maintained for control purposes, and groups 2a, 3a, and 4a were administered only once with 80 mg/kg.bw of cypermethrin, 25 mg/kg.bw of propetamphos and 80 mg/kg.bw of cypermethrin combined with 25 mg/kg.bw of propetamphos, respectively, by gavage directly into the stomach. In the chronic toxicity trial, the first group was also maintained for control purposes, while groups 2b, 3b, and 4b were administered daily with 12 mg/kg.bw of cypermethrin, 4 mg/kg.bw of propetamphos, and 12 mg/kg.bw of cypermethrin combined with 4 mg/kg.bw of propetamphos respectively, by gavage directly into the stomach for 60 days. Blood and tissue (liver, kidney, brain, spleen, and testis) samples were taken 24 h after pesticide administration in the acute toxicity trial and at the end of day 60 in the chronic toxicity trial. Oxidative stress (MDA, NO, SOD, CAT, GSH-Px, and G6PD) parameters, serum biochemical parameters (glucose, triglyceride, cholesterol, HDL, LDL, BUN, creatinine, AST, ALT, ALP, protein, and albumin) and hepatic drug-metabolizing parameters (CYP2E1, CYPB5, CYTC, GST, and GSH) were investigated in the samples. When administered either alone or in combination, both pesticides inhibited the antioxidant enzymes and increased MDA and NO levels. For the drug-metabolizing parameters investigated, particularly in the chronic period, either increase (CYP2E1, CYPB5, and CYTC) or decrease (GST and GSH) was observed. Furthermore, some negative changes were detected in the serum biochemical parameters. In result, cypermethrin and propetamphos combinations and long-term exposure to these combinations produced a greater toxic effect than the administration of these insecticides alone. (C) 2015 Wiley Periodicals, Inc., Erciyes University [TSA-091132], Contract grant sponsor: Research Fund of Erciyes University.; Contract grant number: TSA-091132.
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- 2016
26. Is there diagnostic and prognostic importance of serum anti-p53 antibody level in lung cancer?
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Hasbek, Zekiye, Yücel, Birsen, Doğan, Ömer Tamer, Berk, Serdar, Sarı, İsmail, Silig, Yavuz, Şeker, Mehmet Metin, and Ertürk, Seyit Ahmet
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Anti-p53Antibody,lung cancer,F18-FDG,PET,p53 ,Health Care Sciences and Services ,Anti-p53antikor,akciğer kanseri,F18-FDG,PET,p53 ,Sağlık Bilimleri ve Hizmetleri - Abstract
Amaç: Akciğer kanseri dünya genelinde kansere bağlıölümlerin önde gelen nedenidir. Tanısal cihazlar ve teknolojik gelişmelerebağlı tedavi seçeneklerinde ilerlemeye rağmen, akciğer kanseri hastalarındagenel mortalite oranı hala yüksektir. Akciğer kanseri hastalarında sağkalımoranları, özellikle ilerlemiş inoperabl hastalıkta, immunoterapi gibi yenitedavi seçeneklerine rağmen düşüktür. p53, kanser hastalarının %60-70’inde mutasyonauğramaktadır ve bu nedenle son zamanlarda yapılan çalışmalar göstermektedir ki,serum anti-p53 antikorunun, over, özefagus, meme ve akciğer kanseri gibi bazıkanser türlerinin dedekte edilmesinde biyobelirteç olarak dikkate alınabilir.Bu çalışmada, akciğer kanseri hastalarında, serum anti-p53antikor düzeylerinintanısal ve prognostik önemini araştırmayı amaçladık.Yöntem: Çalışmayaakciğer kanseri (AK) tanısı nedeniyle evreleme için 18F-FDG-PET / BTgörüntüleme amacı ile bölümümüze sevk edilen hastalar, toraks BT’sinde şüphelipulmoner nodül olup, patolojik FDG birikimi göstermeyen hastalar (NAPN= Non-avid FDG gösterenpulmoner nodül) ve sağlıklı gönüllüler dahil edildi. Serum anti-p53antikordüzeyleri tüm hastalarda ELISA yöntemi ile ölçüldü. Hastaların ortalama takipsüresi 13 ay idi.Bulgular: Çalışmaya toplam 65 AK hastası (58E/7K), 47 NAPNhastası (20E/27K) ve 34 sağlıklı gönüllü (26E /8K) dahil edildi. Ortalama serumanti-p53antikor seviyeleri AK hastalarında 3.4ng/mL, NAPN hastalarında 3.77ng/mL, sağlıklı gönüllülerde 3.07 ng/ mL idi. AK hastaları ile NAPN hastaları arasındaserum anti-p53antikor düzeyi için istatistiksel olarak anlamlı fark yoktu (p =0.678). Hatta, hastalarve sağlıklı gönüllüler arasında serum anti-p53Ab düzeyi için istatistikselolarak anlamlı fark yoktu (p = 0.377). Hastaların iki yıllık medyan sağkalımı14 aydı. Hastalarınsağkalım hızında, serum anti-p53Ab düzeyinin > 3.4 ng/ mL veya ≤3.4 ng/ mL olmasının herhangi bir etkisininolmadığı bulundu (p = 0.652).Sonuç: Anti-p53antikoru,karsinogeneziste çok önemli olmasına rağmen, serum anti-p53antikor düzeyininakciğer kanseri tanısında ve sağkalım oranlarında tek başına önemli olmadığını düşünüyoruz. Karsinogenezistebirden fazla faktör vardır ve bu durumun nedeni olabilir. Akciğer kanserihastalarının teşhisi için serum anti-p53antikor düzeylerinin bilinen bir katofdeğeri yoktur. Bu nedenle, buantikorun tümör spesifikliği olmadığını ve serum anti-p53antikor düzeyininakciğer kanseri taraması için uygun olmadığını düşünüyoruz., Objective: Lung cancer is the leading causeof cancer-related deaths worldwide. Despite advancement in diagnostic tools andtreatment options with technological developments, overall mortality rates inlung cancer patients remains high. Survival rates in lung cancer patients islow especially in advanced diseased inoperable patients in spite of newtreatment options like immunotherapy. p53 is mutated in 60-70% of cancerpatients and for this reason has been extensively studied recent researches suggest that serumanti-p53Ab can be considered as biomarkers to detect many types of cancers; asovarian cancer, esophageal cancer, breast cancer and lung cancer. In this studywe aimed that are there any diagnostic and prognostic importance of serumanti-p53Ab levels in lung cancer patients.Method: Patients were included who werereferred to our department with the purpose of 18F-FDG-PET/CTimaging for staging due to lung cancer diagnosis (LC) and patients who wereperformed 18F-FDG-PET/CT for diagnosis in the cause of the suspectedpulmonary nodule in thorax CT but not detected pathologic FDG accumulation(NAPN=pulmonary nodule with non-avid-FDG) and healthy volunteers. Serumanti-p53Ab levels were measured with ELISA method in the all patients. Meanfollow up time of patients were 13 months.Results: A total of 65 LC patients(58M/7F), 47 patients with NAPN (20M/27F), and a total of 34 healthy volunteers(26M/8F) were included in this study. Median serum anti-p53Ab levels are3.4ng/mL in LC patients, 3.77ng/mL in NAPN patients, 3.07ng/mL in healthyvolunteers. There is no statistically significant difference for serumanti-p53Ab level between LC patients and NAPN patients (p=0.678). Moreover there is no statistically significant differencefor serum anti-p53Ab level between patients and healthy volunteers (p=0.377). Two-year median survival ofpatients was 14 month. It has been found that there is no effect of serumanti-p53Ab level whether >3.4 or ≤3.4 on the patient survival rate (p=0.652).Conclusions: Even thoughanti-p53Ab is very important in carcinogenesis, we think that serum anti-p53Ablevel by itself is not important in lung cancer diagnosis and survival rates.There are multiple factors in carcinogenesis and this may be the reason of thissituation. There is no known cut off value of serum anti-p53 Ab levels fordiagnosis of lung cancer patients. Therefore we think that this antibody is nottumor spesific and serum anti-p53 Ab level measurement is not appropriate forlung cancer screening.
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- 2017
27. Role of SOD2 Ala16Val polymorphism in primary brain tumors
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Taş, Ayca, primary, Silig, Yavuz, additional, Pinarbaşi, Hatice, additional, and G�relik, Mustafa, additional
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- 2019
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28. Chemotherapeutic effects of doxorubicin loaded Peg coated Tio2 nanocarriers on breast cancer cell lines
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Tas, Ayca, primary, Cakmak, Nese, additional, Gumus, Erkan, additional, Atabey, Mustafa, additional, and Silig, Yavuz, additional
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- 2019
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29. An in vitro Study of Cytotoxic Activity of Euphorbia macroclada boiss on Mcf–7 Cells
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Tas, Ayca, primary, Sahin-Bolukbaşı, Serap, additional, Cevik, Esranur, additional, Ozmen, Esma, additional, Gumus, Erkan, additional, and Silig, Yavuz, additional
- Published
- 2018
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30. Expression levels of BAP1, OGT, and YY1genes in patients with eyelid tumors
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Tas, Ayca, Gumus, Erkan, Ozmen, Esma, Erdogan, Haydar, and Silig, Yavuz
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- 2021
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- View/download PDF
31. Is there diagnostic and prognostic importance of serum anti-p53 antibody level in lung cancer?
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Hasbek, Zekiye, primary, Yücel, Birsen, additional, Doğan, Ömer Tamer, additional, Berk, Serdar, additional, Sarı, İsmail, additional, Silig, Yavuz, additional, Şeker, Mehmet Metin, additional, and Ertürk, Seyit Ahmet, additional
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- 2017
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32. Investigation of the association between the MDM2 T309G polymorphism and gastric cancer
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Tas, Ayca, primary, Atabey, Mustafa, additional, Caglayan, Gulcin, additional, Bostanci, Meric Emre, additional, Sahin Bolukbasi, Serap, additional, Topcu, Omer, additional, and Silig, Yavuz, additional
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- 2017
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33. Effects of Triclosan-Impregnated Suture Materials on Colonic Anastomosis.
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Atabey, Mustafa, Taş, Ayça, Topçu, Ömer, and Silig, Yavuz
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SUTURES ,ABDOMINAL wall ,PROCTOLOGY ,WOUND infections ,HEALING ,BIOABSORBABLE implants ,RETROPUBIC prostatectomy - Abstract
Objective: Symptomatic anastomotic leakage observed after colorectal surgery is one of the major complications. One of the factors affecting the anastomosis healing is the type of suture material used. This study aims to investigate the effects of the suture material polydioxanone (PDS, Ethicon), which is late absorbable and has a monofilament structure, and the suture material polyglactin 910 (Vicryl, Ethicon), which is absorbable and has a multifilament structure, on the healing of colonic anastomosis, and to compare the traditional forms of these sutures with their antibacterial effective triclosan-impregnated forms (PDS Plus, Ethicon and Vicryl Plus, Ethicon). Materials and Methods: The rats were divided into four equal groups consisting of 10 subjects each: Group I: Vicryl; Group II: Vicryl Plus; Group III: PDS; and Group IV: PDS Plus. The presence of wound infection, whether the integrity of the abdominal wall was maintained, intra-abdominal adhesion scoring, the presence of intra-abdominal abscess, and whether the macroscopic integrity of anastomosis was maintained were evaluated. Results: According to the results of this experimental study, while the highest ABP and hydroxyproline levels were observed in the PDS Plus group, the lowest values were observed in the Vicryl group. However, the difference was not statistically significant. Conclusion: Slowly absorbable and monofilament PDS suture material causes less tissue reaction and inflammatory response compared to the Vicryl suture material that is absorbable in the colonic anastomosis line and multifilament. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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34. Chemotherapeutic effects of doxorubicin loaded PEG coated TiO2 nanocarriers on breast cancer cell lines.
- Author
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Tas, Ayca, Cakmak, Nese Keklikcioglu, Gumus, Erkan, Atabey, Mustafa, and Silig, Yavuz
- Subjects
DOXORUBICIN ,BREAST cancer treatment ,CANCER chemotherapy ,CANCER cell growth ,FLUORESCENCE microscopy - Abstract
Aim: Breast cancer is the most common frequently diagnosed malignancy among women and leading cause of cancer death in women worldwide. The aim of this study is 1) to increase the biocompatibility of the titanium dioxide (TiO
2 ) nanoparticles (NPs) by coating it with PolyEthylene Glycol (PEG) and to develop a new nanostructure system and 2) to determine anticancer activity of doxorubicin (DOX) loaded PEG-TiO2 on MDA-MB-231 cell lines. Material and Methods: TiO2 nanoparticles used in this study were synthesized, coated with PEG, and PEG-TiO2 nanostructure system was loaded by DOX. UV analysis was performed on the prepared solutions. The synthesized drugs were applied to the MDA-MB-231 breast cancer cell line and cytotoxic effect of these drugs were determined by using MTT method. The MDA-MB-231 cells were treated with different concentrations of TiO2 (5-100 µg/ml) for 24, 48 and 72 hours. Apoptosis and necrosis were determined by fluorescence microscopy using the Hoechst 33258 (HO)/propidium iodide (PI) double staining. Results: The effects of TiO2 , PEG-TiO2 , DOX, and TiO2 -PEG-DOX on the MDA-MB-231 cell line were compared with the control group and IC50 values were determined for 24, 48 and 72 hours. Conclusion: In this study, it was shown that the effect of TiO2 -PEG-DOX nanostructured system on MDA-MB-231 cell line was inhibition growth in cancer cells and induction of apoptosis when compared with control group and DOX. [ABSTRACT FROM AUTHOR]- Published
- 2019
- Full Text
- View/download PDF
35. Superoxide Dismutase 1 (SOD 1) A251G Polymorphism
- Author
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Silig, Yavuz, primary, Tas, Ayca, additional, Sahin-Bolukbasi, Serap, additional, Caglayan, Gulcin, additional, and Sari, Ismail, additional
- Published
- 2017
- Full Text
- View/download PDF
36. Is there a relation between Murine double minute 2 T309G polymorphism and lung cancer risk in the Turkish population?
- Author
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Yilmaz, Meral, primary, Tas, Ayça, additional, Kacan, Turgut, additional, Sari, Musa, additional, and Silig, Yavuz, additional
- Published
- 2017
- Full Text
- View/download PDF
37. Is there a relation between Murine double minute2 T309G polymorphism and lung cancer risk in the Turkish population?
- Author
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Yilmaz, Meral, Tas, Ayça, Kacan, Turgut, Sari, Musa, and Silig, Yavuz
- Published
- 2017
- Full Text
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38. Manganese-superoxide dismutase (MnSOD) polymorphisms/ Manganez-süperoksit dismutaz (MnSOD) polimorfizmi.
- Author
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Silig, Yavuz, Tas, Ayca, and Pinarbasi, Hatice
- Subjects
- *
GENETIC polymorphism research , *SUPEROXIDE dismutase , *MANGANESE , *POLYMERASE chain reaction , *RESTRICTION fragment length polymorphisms - Abstract
Objective: Manganese superoxide dismutase (MnSOD,SOD2), the only known superoxide scavenger in mitochondria, may be particularly important for antioxidant defense because mitochondria are the major sites for cellular metabolism and hence production of reactive oxygen species. Methods: In this study, 440 Turkish individuals were genotyped for polymorphisms of SOD2 gene. The distribution of these polymorphisms in this population was examined using a PCRRFLP method. Results: In the present study, a total of 440(females: 201, 46% and males: 239, 54%) healthy individuals were studied. The mean age of the study population was 54,41±5,76 years (males, 55,34±5,76; females, 53,12±7,16). The observed genotype frequencies of SOD2 were 17.5, 50.5 and 32.0% for CC, CT and TT, respectively. Conclusion: This study provides basic information about the allele and genotype frequency distributions of polymorphisms of rs4880 in the SOD2 gene studied. These frequencies may be useful parameters as a reference for future studies on genetic basis of various diseases and cancer susceptibility. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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- View/download PDF
39. An in vitro Study of Cytotoxic Activity of Euphorbia macroclada boiss on Mcf–7 Cells
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Ayca Tas, Serap Sahin-Bolukbaşı, Esranur Cevik, Esma Ozmen, Erkan Gumus, Yavuz Silig, and [Tas, Ayca] Cumhuriyet Univ, Fac Hlth Sci, Dept Nutr & Diet, Sivas, Turkey -- [Sahin-Bolukbasi, Serap -- Cevik, Esranur] Cumhuriyet Univ, Fac Pharm, Dept Biochem, Sivas, Turkey -- [Ozmen, Esma -- Silig, Yavuz] Cumhuriyet Univ, Fac Med, Dept Biochem, Sivas, Turkey -- [Gumus, Erkan] Cumhuriyet Univ, Fac Med, Dept Histol, Sivas, Turkey -- [Gumus, Erkan] Cumhuriyet Univ, Fac Med, Dept Embryol, Sivas, Turkey
- Subjects
0301 basic medicine ,030109 nutrition & dietetics ,Cytotoxic activity ,Traditional medicine ,Chemistry ,Euphorbia macroclada boiss ,03 medical and health sciences ,Breast cancer ,MCF-7 ,Euphorbia macroclada ,Cytotoxic T cell ,In vitro study ,General Pharmacology, Toxicology and Pharmaceutics - Abstract
WOS: 000454950700019, Objective: The study was aimed to evaluate the cytotoxic activity of acetone extract of leaves, flower and body of Euphorbia macroclada boiss on human breast cancer cell line (MCF-7). Material: The cells were plated at a cell density of 1x10(5) cells in 96-well plates and grown with DMEM medium containing supplemented with 10% FBS and 1% penicillin. The cells were treated by different concentrations of acetone extract of Euphorbia macroclada boiss (10-1000 mu g/mL) during 24, 48 and 72 h. The cytotoxic activities of the tested compounds were determined by cell proliferation analysis using standard (3-(4,5- dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Results: After the evaluation of cytotoxicity assay results, it is determined that flower and body parts have a significant cytotoxic effect on MCF-7 breast cancer cell line. The values that obtained reading at 570 nm spectrophotometrically, were analyzed with GraphPad Prism7 and IC50 growth inhibition values was determined. Conclusion: The results of MTT assay showed that leaves, flower and body significantly reduced % cell viability comparative to the control. It was also shown that body had more growth inhibitory effect on MCF-7 cell compared to the leaves part.
- Published
- 2018
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40. The effects of colostrum on some biochemical parameters in the experimental intoxication of rats with paracetamol
- Author
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Ayca Tas, Yavuz Silig, Zeynep Soyer Sarica, Muhammet Yasin Tekeli, Murat Kanbur, Gökhan Eraslan, Mürsel Karabacak, and [Karabacak, Mursel] Erciyes Univ, Safiye Cikrikcioglu Vocat Coll, Lab & Vet Hlth Dept, Kayseri, Turkey -- [Kanbur, Murat -- Eraslan, Gokhan -- Tekeli, Muhammet Yasin] Erciyes Univ, Dept Pharmacol & Toxicol, Fac Vet Med, Kayseri, Turkey -- [Silig, Yavuz] Cumhuriyet Univ, Dept Biochem, Fac Med, Sivas, Turkey -- [Sarica, Zeynep Soyer] Erciyes Univ, Expt Res & Applicat Ctr, Kayseri, Turkey -- [Tas, Ayca] Cumhuriyet Univ, Dept Nutr & Diet, Fac Hlth Sci, Sivas, Turkey
- Subjects
Male ,0301 basic medicine ,medicine.medical_specialty ,Bilirubin ,Health, Toxicology and Mutagenesis ,Intoxication ,Nitric Oxide ,Blood Urea Nitrogen ,Biochemical parameters ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Malondialdehyde ,Internal medicine ,medicine ,Animals ,Environmental Chemistry ,Rats, Wistar ,Blood urea nitrogen ,Triglycerides ,Acetaminophen ,chemistry.chemical_classification ,business.industry ,Colostrum ,Glutathione peroxidase ,Albumin ,General Medicine ,Glutathione ,Drug metabolising parameters ,Pollution ,Enzymes ,Oxidative Stress ,Paracetamol ,030104 developmental biology ,Endocrinology ,Liver ,chemistry ,End of day ,030220 oncology & carcinogenesis ,Rat ,Female ,Lipid Peroxidation ,business ,Oxidative stress parameters - Abstract
WOS: 000441784000038, PubMed ID: 29881964, In the current study, the possible prophylactic and therapeutic effects of colostrum (COL) on acute organ injury caused by paracetamol (PAR) in rats were evaluated. Within the scope of this study, a 2-month-old male (150-200 g) 70 Wistar Albino rat was used and a total of seven groups were designed. The first group (CNT) was maintained for control purposes. The second group (COL-1) was given COL for 1 day, at a dose of 500 mg/kg at 6-h intervals, and blood and tissue sampling was performed at 24 h. The third group (COL-7) received COL for 7 days, at a dose of 500 mg/kg at 6-h intervals on day 1 and at a daily dose of 500 mg/kg on the following days, and blood and tissue samples were taken at the end of seventh day. The fourth group (PAR-1) was administered with PAR at a dose of 1.0 g/kg bw and was blood and tissue sampled at 24 h. The fifth group (PAR-7) received PAR at a dose of 1.0 g/kg bw on day 1 and was blood and tissue was removed at the end of day 7. The sixth group (PAR+COL-1) was administered with a combination of PAR (1 g/kg bw) and COL (500 mg/kg at 6-h intervals), and blood and tissue samples were collected at 24 h. The seventh group (PAR+COL-7) received 1.0 g/kg bw of PAR on day 1 and was given COL throughout the 7-day study period (at a dose of 500 mg/kg at 6-h intervals on day 1 and at a daily dose of 500 mg/kg on the following days). In the seventh group, blood and tissue samples were taken at the end of seventh day. Alkaline phosphatase (ALP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN), glucose, creatinine, triglyceride, total bilirubin, total protein and albumin levels/activities were analysed in the serum samples. The malondialdehyde (MDA), nitric oxide (NO), superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) levels/activities, known as oxidative stress parameters, were assayed for tissue homogenates and blood (erythrocytes/plasma); in addition, enzyme activities of GSH S-transferase (GST), cytochrome P4502E1 (CYP2E1), NADH-cytochrome b5 reductase (CYTB5), glucose-6-phosphate dehydrogenase (G6PD), NADPH-cytochrome P450 C reductase (CYTC) and glutathione (GSH) levels/activities defined as drug metabolising parameters were measured in liver homogenates. In result, it was determined that PAR caused significant alterations in some biochemical and lipid peroxidation parameters and the activities/levels of drug metabolising parameters in the liver and that COL normalised some of these parameters and reduced PAR-induced tissue damage., Erciyes University [TSA-1137], This research (project code: TSA-1137) was supported by the Scientific Research Fund of Erciyes University.
- Published
- 2018
- Full Text
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41. Role of SOD2 Ala16Val polymorphism in primary brain tumors
- Author
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Yavuz Silig, Hatice Pinarbasi, Ayca Tas, Mustafa Gurelik, and [Tas, Ayca] Sivas Cumhuriyet Univ, Fac Hlth Sci, Dept Nutr & Diet, TR-58140 Sivas, Turkey -- [Silig, Yavuz -- Pinarbasi, Hatice] Sivas Cumhuriyet Univ, Fac Med, Dept Biochem, TR-58140 Sivas, Turkey -- [Gurelik, Mustafa] Medicana Sivas Hosp, Clin Neurosurg, TR-58050 Sivas, Turkey
- Subjects
0301 basic medicine ,Oncology ,Turkish population ,medicine.medical_specialty ,SOD2 ,Brain tumor ,primary brain tumors ,Logistic regression ,manganese superoxide dismutase ,General Biochemistry, Genetics and Molecular Biology ,polymorphism ,superoxide dismutase 2 ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Genotype ,medicine ,General Pharmacology, Toxicology and Pharmaceutics ,Family history ,Allele frequency ,Ala16Val ,business.industry ,General Neuroscience ,General Medicine ,Odds ratio ,medicine.disease ,030104 developmental biology ,030220 oncology & carcinogenesis ,business - Abstract
WOS: 000461242900006, PubMed ID: 30906548, The present study aimed to investigate the possible association between the genetic polymorphism of the enzyme superoxide dismutase 2 (SOD2, also known as manganese-dependent SOD), Ala16Val (rs4880), and primary brain tumor risk in the Turkish population. Frequency of the SOD2 gene rs4880 polymorphism was identified in 225 Turkish individuals (120 controls and 105 patients with primary brain tumor) by polymerase chain reaction-restriction fragment length polymorphism. Subject demographics and clinical characteristics were also recorded. The findings were evaluated using logistic regression and chi(2) tests. Logistic regression analysis indicated that smoking did not increase the risk for primary brain tumor [ odds ratio (OR)= 0.77, 95% confidence interval (CI)= 0.44-1.33, chi(2)= 0.352, P= 0.860]. Similarly, there was no statistically significant difference in the family history of cancer incidence between the control subjects and the primary brain tumor patients (OR= 0.81, 95% CI= 0.39-1.71, chi(2)= 0.340, P= 0.560). There was no significant association of the histopathological type, genotype/ allele frequencies and inheritance models of tumor with the gene variants among the patients with primary brain tumor. In summary, the results of the present study indicated that the Ala16Val polymorphism of the SOD2 gene was not associated with primary brain tumor risk in the Turkish population studied., Sivas Cumhuriyet University (Sivas, Turkey) [CUBAP T-403], The current study was funded by Sivas Cumhuriyet University (Sivas, Turkey) via research grants (grant no. CUBAP T-403) provided to the project.
- Published
- 2019
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42. The toxic effect of cypermethrin, amitraz and combinations of cypermethrin-amitraz in rats
- Author
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Yavuz Silig, Murat Kanbur, Gökhan Eraslan, Mürsel Karabacak, Zeynep Soyer Sarica, Serap Şahin, and [Kanbur, Murat -- Eraslan, Gokhan] Erciyes Univ, Fac Vet Med, Dept Pharmacol & Toxicol, Kayseri, Turkey -- [Silig, Yavuz] Cumhuriyet Univ, Dept Biochem, Fac Med, Sivas, Turkey -- [Karabacak, Mursel] Erciyes Univ, Dept Anim Hlth, Safiye Cikrikcioglu Vacat Coll, Kayseri, Turkey -- [Sarica, Zeynep Soyer] Erciyes Univ, Hakan Cetinsaya Expt Anim Ctr, Kayseri, Turkey -- [Aahin, Serap] Cumhuriyet Univ, Dept Biochem, Fac Pharm, Sivas, Turkey
- Subjects
Male ,0301 basic medicine ,medicine.medical_specialty ,Toluidines ,Health, Toxicology and Mutagenesis ,010501 environmental sciences ,Reductase ,Kidney ,medicine.disease_cause ,01 natural sciences ,Cypermethrin ,03 medical and health sciences ,chemistry.chemical_compound ,Internal medicine ,Pyrethrins ,Testis ,Toxicity Tests ,medicine ,Animals ,Environmental Chemistry ,Rats, Wistar ,Blood urea nitrogen ,0105 earth and related environmental sciences ,Amitraz ,chemistry.chemical_classification ,Toxicity ,Glutathione peroxidase ,General Medicine ,Glutathione ,Malondialdehyde ,Pollution ,Rats ,Oxidative Stress ,030104 developmental biology ,Endocrinology ,Liver ,chemistry ,Combination ,Rat ,Oxidative stress - Abstract
WOS: 000373609300023, PubMed ID: 26561326, In this study, the effects of cypermethrin (CYP), amitraz (AMT) and combined cypermethrin-amitraz (CYP-AMT) on some serum biochemical, oxidative stress and drug-metabolising parameters were investigated in male Wistar albino rats. CYP, AMT and combined CYP-AMT were administered at doses of 80 mg kg(-1) bw(-1) of CYP and 170 mg kg(-1) bw(-1) of AMT for 1 day (single dose), and at doses of 12 mg kg(-1) bw(-1) of CYP and 25 mg kg(-1) bw(-1) of AMT for 40 days by oral gavage. Oxidative stress (malondialdehyde (MDA), nitric oxide (NO), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) and glucose-6-phosphate dehydrogenase (G6PD)), serum biochemical (glucose, triglyceride, cholesterol, high-density lipoprotein (HDL), low-density lipoprotein (LDL), blood urea nitrogen (BUN), creatinine, asparatate amino transferase (AST), alanine amino transferase (ALT), alkaline phosphatase (ALP), total protein, albumin) in blood/tissues (liver, kidney, brain, spleen and testis) and hepatic drug-metabolising (cytochrome P450 2E1 (CYP2E1), NADH-cytochrome b(5) reductase (CYPb5), NADPH-cytochrome c reductase/NADPH cytocrome P450 reductase (CYTC), glutathione S-transferase (GST), glutathione (GSH)) parameters were measured in liver samples taken on days 1 and 40. In result, it was determined that CYP, AMT and their combinations led to significant changes in the parameters investigated, and it was ascertained that long-term exposure to insecticides and the administration of insecticide combinations produced greater toxic effects in comparison with the administration of insecticides alone., Erciyes University [TSA-091132], This research (project code: TSA-091132) was supported by the Research Fund of Erciyes University.
- Published
- 2015
- Full Text
- View/download PDF
43. Is there a relation between Murine double minute 2 T309G polymorphism and lung cancer risk in the Turkish population?
- Author
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Musa Sari, Ayca Tas, Meral Yilmaz, Yavuz Silig, Turgut Kacan, and [Yilmaz, Meral] Cumhuriyet Univ, Fac Med, Dept Res Ctr, Sivas, Turkey -- [Tas, Ayca] Cumhuriyet Univ, Fac Hlth Sci, Dept Nutr & Diet, Sivas, Turkey -- [Kacan, Turgut] Cumhuriyet Univ, Fac Med, Dept Med Oncol, Sivas, Turkey -- [Sari, Musa] Cumhuriyet Univ, Fac Sci, Dept Biol, Sivas, Turkey -- [Silig, Yavuz] Cumhuriyet Univ, Fac Med, Dept Med Biochem, Sivas, Turkey
- Subjects
0301 basic medicine ,Oncology ,medicine.medical_specialty ,Turkish population ,Pathology ,business.industry ,Biochemistry (medical) ,Clinical Biochemistry ,medicine.disease ,Biochemistry ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Murine double minute 2 (MDM2) gene ,030220 oncology & carcinogenesis ,Internal medicine ,medicine ,Lung cancer ,Polymorphism ,business ,Molecular Biology - Abstract
WOS: 000405114700002, Introduction: Association between Murine double minute 2 T309G polymorphism and lung cancer risk has been investigated in several populations, but results of these studies are inconsistent. We aimed to investigate the effect of Murine double minute 2 T309G polymorphism on development of lung cancer in a Turkish population. Methods: Total 200 subjects including 100 patients and 100 controls were analyzed and used polymerase chain reaction and restriction fragment length polymorphism methods for genotyping analysis of the polymorphism. Results: We found that smokers compared with nonsmokers have approximately eight fold higher lung cancer risk [p = 0.0001, OR = 8.27 (4.02-16.9)]. Frequency of GG genotype was higher in patients than in controls, but this ratio was not significant (chi(2) = 3.5, p = 0.17). Genotype distribution of the polymorphism was not different neither patients with non-small cell lung cancer nor patients with small cell lung cancer (chi(2) = 2.89, p = 0.57). We analyzed together with demographic feature (except smoking habit), clinicopathological findings and genotype frequencies of this polymorphism, and any association with lung cancer risk was not obtained. Conclusion: No correlation between Murine double minute 2 T309G polymorphism and lung cancer risk was detected in this Turkish population.
- Published
- 2017
44. Superoxide Dismutase 1 (SOD 1) A251G Polymorphism
- Author
-
Yavuz Silig, Ayca Tas, Gulcin Caglayan, Serap Şahin-Bölükbaşı, Ismail Sari, [Silig, Yavuz -- Caglayan, Gulcin -- Sari, Ismail] Cumhuriyet Univ, Dept Biochem, Fac Med, TR-58140 Sivas, Turkey -- [Tas, Ayca] Cumhuriyet Univ, Dept Nutr & Diet, Fac Hlth Sci, Sivas, Turkey -- [Sahin-Bolukbasi, Serap] Cumhuriyet Univ, Dept Biochem, Fac Pharm, Sivas, Turkey, and Sari, Ismail -- 0000-0003-3732-2102
- Subjects
0301 basic medicine ,Genetic polymorphism ,rs2070424 ,Superoxide dismutase 1 ,Biochemistry (medical) ,Clinical Biochemistry ,Biology ,Biochemistry ,Molecular biology ,Turkish population ,Superoxide dismutase ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Polymorphism (materials science) ,030220 oncology & carcinogenesis ,Copper/zinc-superoxide dismutase ,biology.protein ,Molecular Biology ,SOD1 A251G - Abstract
WOS: 000405114700008, Objective: A genetic polymorphism of SOD1 A251G(rs2070424) is in the 3rd intron region of the SOD gene. The aim of this study was to determine the frequencies of the polymorphisms of the SOD1 A251G in a Turkish population, including 494 healthy individuals. Methods: The 494 Turkish individuals were genotyped for polymorphisms of SOD1 gene. The distribution of SOD1 A251G polymorphisms in this population was examined using a PCR-RFLP method. Genotype and allele frequencies were estimated by counting. Hardy-Weinberg equation between expected and observed genotype distributions was assessed using the X-2 test. Results: In the present study, the distribution of SOD1 A251G polymorphisms in a Turkish population including 494 (females: 278, 56.3% and males: 216, 43.7%) healthy individuals was examined. The mean age of the study population was 38.4 +/- 16.6 years (males, 39.8 +/- 17.1; females, 37.3 +/- 16.1). The observed genotype frequencies of SOD1 A251G were 86.2, 13.4 and 0.4% for AA, AG and GG, respectively. Conclusions: This study provides basic information about the allele and genotype frequency distributions of polymorphisms in the SOD1 A251G gene studied. These frequencies may be useful parameters as a reference for future studies on genetic basis of various diseases and cancer susceptibility.
- Published
- 2017
45. The Diagnostic Value of the Correlation between Serum Anti-p53 Antibody and Positron Emission Tomography Parameters in Lung Cancer
- Author
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Ismail Sari, Zekiye Hasbek, Birsen Yücel, Yavuz Silig, Omer Tamer Dogan, Bülent Turgut, Mehmet Metin Seker, Serdar Berk, Sivas Cumhuriyet Üniversitesi, and [Hasbek, Zekiye -- Turgut, Bulent] Cumhuriyet Univ, Fac Med, Dept Nucl Med, Sivas, Turkey -- [Dogan, Omer Tamer -- Berk, Serdar] Cumhuriyet Univ, Fac Med, Dept Chest Dis, Sivas, Turkey -- [San, Ismail -- Silig, Yavuz] Cumhuriyet Univ, Fac Med, Dept Biochem, Sivas, Turkey -- [Yucel, Birsen] Cumhuriyet Univ, Fac Med, Dept Radiat Oncol, Sivas, Turkey -- [Seker, Mehmet Metin] Turgut Ozal Univ, Fac Med, Dept Med Oncol, Ankara, Turkey
- Subjects
lcsh:Medical physics. Medical radiology. Nuclear medicine ,0301 basic medicine ,Nükleer Tıp ,lcsh:R895-920 ,lcsh:Medicine ,Standardized uptake value ,positron emission tomography/computed tomography ,Anti-p53 antibody ,Malignancy ,Radyoloji ,fluorodeoxyglucose ,Lesion ,03 medical and health sciences ,Tıbbi Görüntüleme ,0302 clinical medicine ,Parenchyma ,medicine ,Radiology, Nuclear Medicine and imaging ,Lung cancer ,Fluorodeoxyglucose ,lcsh:R5-920 ,medicine.diagnostic_test ,biology ,business.industry ,lcsh:R ,Lung Cancer ,medicine.disease ,lung cancer ,030104 developmental biology ,Positron emission tomography ,030220 oncology & carcinogenesis ,biology.protein ,Original Article ,medicine.symptom ,Antibody ,lcsh:Medicine (General) ,business ,Nuclear medicine ,medicine.drug - Abstract
WOS: 000391387000001, PubMed ID: 27751972, Objective: Mutations in the p53 gene are the most commonly observed genetic abnormalities in malignancies. The purpose of this study was to assess the diagnostic value of serum anti-p53 antibody (Ab) along with the correlation between serum anti-p53 Ab level and quantitative positron emission tomography (PET) parameters such as maximum standardized uptake value (SUVmax), SUVave, metabolic tumor volume, total lesion glycolysis (TLG) and tumor size. Methods: Serum anti-p53 Ab level was studied in three groups. Patients who underwent F-18-fluorodeoxyglucose (FDG) PET/computed tomography (CT) imaging for staging of previously diagnosed lung cancer constituted the first group, while patients who underwent F-18-FDG PET/CT imaging for evaluation of suspicious pulmonary nodules detected on thorax CT and did not show pathologic FDG accumulation (NAPN= pulmonary nodule with non avid-FDG) were enrolled in the second group. The third group consisted of healthy volunteers. Results: Twenty-eight patients with lung cancer (median age: 62.5, range: 39-77years), 28 patients with NAPN (median age: 65, range: 33-79 years), and 24 healthy volunteers (median age: 62, range: 44-74 years) were enrolled in the study. The serum anti-p53 Ab level was low in healthy volunteers while it was higher in both lung cancer patients and NAPN patients (p< 0.05). When serum anti-p53 Ab level and PET parameters were evaluated, there was no significant correlation between serum anti-p53 Ab level and SUVmax, SUVave, TLG, tumor volume and tumor size of patients with lung cancer (p> 0.05). Besides, there was no significant difference between serum anti-p53 Ab level and lesion size of NAPN patients (p> 0.05). Conclusion: It was determined that serum anti-p53 Ab levels are not significantly correlated with PET parameters, and that serum anti-p53 Ab levels increase in any benign or malignant lung parenchyma pathology as compared to healthy volunteers. These results indicate that this Ab cannot be used as a predictor of malignancy in a lung lesion., Cumhuriyet University Scientific Research Project Unit [T-597], The work was supported by grants from Cumhuriyet University Scientific Research Project Unit (T-597).
- Published
- 2016
46. A Significant Association Between rs2295190 Polymorphism of the ESR1 Gene and Fibromyalgia Syndrome.
- Author
-
Kaydok E, Ozmen E, Sari I, Cakıroglu GS, Tas A, Silig Y, and Hayta E
- Subjects
- Humans, Female, Case-Control Studies, Polymorphism, Genetic, Pain Measurement, Pain, Fibromyalgia genetics, Fibromyalgia diagnosis
- Abstract
Fibromyalgia syndrome (FMS) is a multifactorial disease characterized by chronic diffuse pain. Genetic factors are also involved in the etiology. However, there is not enough information on the genetic factors that play a role in the pathogenesis of FMS. The aim of this study is to investigate the relationship between estrogen receptor 1 gene (ESR1) 594G>A (rs2228480) and 325C>G (rs2295190) polymorphisms and fibromyalgia syndrome (FMS). A total of 294 women, 146 of who were FMS patients and 148 of whom were healthy controls, were enrolled in the study. The instruments used to collect data from patients included patient follow-up form, Visual Analogue Scale (VAS), and Fibromyalgia Impact Questionnaire (FIQ). Genotyping of ESR1 594G>A and 325C>G polymorphisms in the extracted DNA samples was performed using an RT-PCR device and TaqMan hydrolysis probes. It was found that, for rs2295190 polymorphism, patients with CG and GG genotypes versus CC genotypes showed a decreased risk for FMS (OR: 0.442; 95% CI: 0.234-0.833). But there were no significant differences were found in the genotype distribution of rs2228480 polymorphism between the FMS patients and controls. The intragroup evaluation of FMS patients revealed no significant association between symptoms, pain score, FIQ score, and polymorphisms (p>0.05). We are of the opinion that there is a significant association between ESR1 rs2295190 polymorphism and FMS and that this polymorphism may be protective against FMS. However, there is a need for comprehensive studies on different populations to obtain clearer data as well as further studies to elucidate the possible mechanism of association.
- Published
- 2022
- Full Text
- View/download PDF
47. Significant association between MDM2 T309G polymorphism and colorectal cancer.
- Author
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Atabey M, Tas A, Sari I, Bostanci ME, Topcu O, and Silig Y
- Subjects
- Aged, Aged, 80 and over, Animals, Case-Control Studies, Colorectal Neoplasms epidemiology, Female, Genetic Predisposition to Disease, Humans, Male, Mice, Middle Aged, Polymorphism, Genetic, Turkey epidemiology, Colorectal Neoplasms genetics, Proto-Oncogene Proteins c-mdm2 genetics
- Abstract
Purpose: The Murine double minute 2 (MDM2) gene plays a crucial role in regulating and suppressing the function of apoptotic pathway. We investigated the relationship between MDM2 gene SNP309 (T309G) (rs2279744) polymorphism and colorectal cancer (CRC) in a Turkish population., Methods: The polymorphism T309G (rs2279744) in the MDM2 gene was studied in patients with colorectal cancer (n=135) and healthy control subjects (n=145) using the polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) method. The findings were evaluated using logistic regression and x2 tests., Results: When CRC cases and controls were evaluated based on different habits and family cancer histories, a statistically significant relationship was found between CRC and alcohol consumption (x2=4.07, p=0.044). Cancer cases and controls had statistically significant different family histories of cancer (x2=6.82, p=0.009). There was also significant difference in TG genotype distribution in the MDM2 T309G polymorphism between those with and without cancer (OR=1.98, 95% CI=1.98-3.91, x2=4.00, p=0.045)., Conclusions: The SNP309 polymorphism of the MDM2 gene is associated with increased CRC risk in the Turkish population.
- Published
- 2019
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