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    Assessment of the Effects of Levosimendan and Nigella Sativa on Myocardial Ischemia Reperfusion Injury in Rats (conferenceObject)
    (Wiley, 2018) Ozer, A.; Kilic, Y.; Sezen, S. C.; Kucuk, A.; Mardin, B.; Alkan, M.; Oktar, L.
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    Effects of fullerenol nanoparticles on kidney tissue in sevoflurane-treated rats
    (Comenius Univ, 2020) Sivgin, V; Yalcin, G.; Kucuk, A.; Sezen, S. C.; Afandiyeva, N.; Arslan, M.
    AIM: The aim of this study is to demonstrate whether fullerenol C60 protects renal injury in sevoflurane-administered rats. METHOD: Rats (n: 24) were randomly divided into four groups: Control (Group C), Fullerenol C60 (Group F), Sevoflurane (Group S), Fullerenol C60-Sevoflurane (Group FS). Thirty minutes before the procedure, Fullerenol C60, 100 mg/kg, was administered intraperitoneally. Sevoflurane (2.3 %) was applied for 3 hours to rats in S and FS groups. Biochemical and histopathological parameters were analyzed in renal tissue samples. Kruskal-Wallis and Mann-Whitney U tests were used in statistical analyzes. RESULTS: Malondialdehyde (MDA) level and catalase (CAT) enzyme activity in Group S were significantly higher than that in all other groups. Paraoxanase (PON) enzyme activity in Group S was significantly lower than in Groups C and FS. The histopathological examination showed that vascular vacuolization and hypertrophy (VVH) and lymphocyte infiltration (LI) were significantly higher in the Group S compared to the Group C. CONCLUSION: Renal histopathology revealed that the administration of Fullerenol C60 prior to sevoflurane inhalation reduced oxidative stress and partially corrected the damage caused by anesthesia. We concluded that Fullerenol C60 has a renal protective effect in rats when administered before sevoflurane anesthesia.
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    Vitamin C ameliorates high dose Dexmedetomidine induced liver injury
    (Comenius Univ, 2016) Arslan, M.; Sezen, S. C.; Turgut, H. C.; Kocabiyik, M.; Arpaci, H.; Comu, F. M.; Kavutcu, M.
    BACKGROUND: We investigated whether vitamin C has protective effects on rat liver tissue treated with different dexmedetomidine doses. MATERIAL AND METHODS: Thirty five wistar albino rats were randomly divided into 5 groups (Control (0.9 % NaCI intraperitoneally (ip), Dexmedetomidine 5 mu g.kg(-1) (ip), Dexmedetomidine 5 mu g.kg(-1) ip plus Vitamin C (100 mng.kg(-1)), Dexmedetomidine 10 mu g.kg(-1) ip and Dexmedetomidine 10 mu g.kg(-1) ip plus Vitamin C (100 mg.kg-1). Histopathological liver injury, superoxide dismutase (SOD) activity and tissue Malondialdehyde levels were investigated. RESULTS: Hepatocyte degeneration was significantly higher in D10 group than those in other study groups (p < 0.0001, p = 0.002, p < 0.0001, p = 0.005, respectively). Similarly, liver tissue sinusoidal dilatation and hepatocyte necrosis were significantly higher in D10 group than those in other groups (p < 0.0001, p < 0.0001, p = 0.002, p < 0.0001 and p < 0.0001, p = 0.046, p < 0.0001 and p = 0.002, respectively). Tissue MDA levels in D10 group were significantly higher than those in control, D5+Vit C and D10+Vit C groups (p = 0.028, p = 0.004, p = 0.031, respectively). SOD enzyme activity in D10 group was significantly lower than in control, D5+Vit C and D10+Vit C groups (p < 0.0001, p = 0.023 and p = 0.031, respectively). CONCLUSION: High dose dexmedetomidine can induce hepatic injury and oxidative stress in rats while pretreatment with vitamin C may be effective in protecting liver tissue against this newly recognized undesirable dexmedetomidine effect (Tab. 2, Fig. 5, Ref. 30). Text in PDF www.elis.sk.