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    The protective effects of Selenium and Boron against Cyclophosphamide-induced bone marrow and blood toxicity: An in vivo study
    (2022) Ayhancı, Adnan; Lafcı, Nilüfer; Musmul, Ahmet; Gür, Fatma Özabacıgil; Sezer, Canan; Sahin, İlknur Kulcanay; Gür, Bahri
    Thanks to their antioxidant, anti-apoptotic, anti-lipid peroxidative, and immune-boosting properties, Boron (B) and Selenium (Se) are essential trace elements for the human body. This study aims to compare the myeloid protective potentials of Se and B in Cyclophosphamide (CP)-induced bone-marrow and haematological toxicity in experimental rats considering that the myelotoxic property of this anti-cancer drug limits its use. We hypothesized that selenium has a better protective effect than boron in preventing the toxic effects of CP on bone marrow and blood cells. 1.5 mg/kg of Se and 20 mg/kg of B, which are the most frequently used optimal doses of these trace elements, were given to the animals intraperitoneally throughout the experiment. 200 mg/kg of CP was administered only on the 4th day. The animals were sacrificed to take the blood and bone marrow samples to be stored for hematological evaluations. The CP administration significantly decreased leukocyte (WBC), thrombocyte (PLT), erythrocytes (RBC), and bone marrow nucleated cell counts. On the other hand, they increased in significant amounts in the groups given Se and B along with CP when compared to those given only CP. However, Se proved to be more protective than B in preventing CP-induced bone marrow and hematologic toxicity despite not achieving statistical significance. It was, therefore, concluded that the doses used in this experiment were successful in protecting against CP-induced damage to the bone marrow and CP-related hematological toxicity.
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    The protective effects of selenium and boron on cyclophosphamide-induced hepatic oxidative stress, inflammation, and apoptosis in rats
    (Elsevier Ltd, 2024) Cengiz, Mustafa; Gür, Bahri; Gür, Fatma; Şahintürk, Varol; Bayrakdar, Alpaslan; Şahin, Ilknur Kulcanay; Başkoy, Sıla Appak
    Cyclophosphamide (CP) is an alkylating anticancer drug with broad clinical application that is highly effective in the treatment of cancer and non-malignant diseases. However, the main limiting effect of CP is multi-organ toxicity due to damage to normal tissues. The aim of this study is to compare the hepatoprotective potential of selenium (Se) and boron (B) in CP-induced liver injury in experimental rats. The rats were randomly divided into six equal groups: Control (saline), 200 mg/kg CP (administered once on the fourth day of the experiment), 1.5 mg/kg Se (administered once/time daily for 6 days), 20 mg/kg B (administered once/time daily for 6 days), Se + CP and B + CP administered intraperitoneally (i.p.). Administration of CP leads to an increase in the levels of apoptotic markers (Bax, caspase-3), the apoptotic signaling pathway (Nrf2), oxidative stress indicators (TOS, OSI), lipid peroxidation markers (MPO, MDA), inflammation levels (NF-kB, TNF-?, IL-1?, IL -6), liver function markers (ALT, AST, ALP), while apoptosis markers (Bcl-2), apoptosis pathway (Keap-1), oxidative stress indicator (TAS), inflammation (IL -10) and intracellular antioxidant defense system (SOD, CAT, GPx and GSH) decreased. In addition, degeneration of hepatocytes and congestion in the central veins were observed. In contrast, in the groups administered Se and B with CP, the changes that occurred were reversed. However, it was found that Se protects the liver slightly better against CP damage than B. The protective effect of Se and B against the toxic effects of CP on the antioxidant markers SOD, CAT and GPx1 was also investigated in silico. The in silico results were consistent with the in vivo results for SOD and CAT, but not for GPx1. © 2024