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    Effects of Amantadine on Liver and Lung Tissue in Hepatic Ischemia Reperfusion Injury in Rats
    (Gazi Univ, Fac Med, 2023) Sahin, Fatih; Tuna, Ayca Tas; Unal, Yusuf; Arslan, Mustafa; Yazar, Hayrullah; Sezen, Saban Cem; Gozukara, Sezen Irmak
    Background: N-Methyl D-Aspartate (NMDA) receptor blockers have been shown to have protective effects against ischemia/reperfusion (I/R) injury in various tissues. The aim of this study was to investigate the effects of amantadine on liver and lung tissue in hepatic I/R injury. Materials and Methods: Twenty-four rats divided into 4 groups: the Sham Group (S), the Amantadine Group (A), the I/R Group (I/R) and the I/R + Amantadine Group (I/R-A). In Group A and Group I/R-A, 45 mg/kg of amantadine was administered before surgery. In Group I/R and Group I/R-A, an atraumatic vascular clamp was applied to the structures in the left portal triad for 45 minutes and reperfusion period was 2 hours after declampage. Malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT) enzyme levels were were studied in liver and lung tissues. Additionally tissues were examined histopathologically. Results: No significant difference was observed in tissue MDA, SOD, and CAT levels among four groups (p >0.05). Polymorphonuclear cell infiltration and the scores of hepatocyte degeneration, sinusoidal dilatation, pycnotic core, and necrosis cell were significantly higher in Group I/R than other groups (p<0.05). Regarding to the lung tissue, the neutrophil/lymphocyte infiltration score was significantly lower in Group S and A than in Group I/R (respectively; p= 0.007, 0.011), and it was significantly higher in Group I/R-A than in Group S (p = 0.014). The alveolar wall thickening score was significantly higher in Group I/R than the other groups (p <0.0001). Conclusion: Amantadine may have a protective effect against I/R damage, as it reduces histopathological changes caused by I/R damage.
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    The Effects of High Dose Sugammadex on Rat Kidney Tissue Following Unilateral Ureteral Obstruction
    (Gazi Univ, Fac Med, 2018) Dogrul, Fikriye; Bozkirli, Fusun; Sezen, Saban Cem; Arpaci, Hande; Boyunaga, Hakan; Arslan, Mustafa; Unal, Yusuf
    Background: Unilateral ureteral obstruction (UUO) is commonly used model showed to imitate process of obstructive nephropathy in a feasible. The aim of this study is to evaluate the histopathological and biochemical effects of high doses sugammadex on kidney tissue of the rats those have early and late phase renal failure induced by UUO. Materials and Methods: Thirty male Wistar albino rats were randomly divided into five study groups. Control Group(C), UUO for 1 week Group(UUO-1), UUO-1 week treated with rocuronium and 96mg.kg(-1) Sugammadex Group(UUO-1 week-96S), UUO for 3 weeks Group(UUO-3) and UUO-3 weeks treated with rocuronium and 96mg.kg(-1 )Sugammadex Group(UUO-3 week-96S). The blood samples are stored at -20 degrees and MDA and NO were studied in the serum. Kidney tissue was removed for histopathological examination. Results: In the histopathological examination of all parameters (glomerular vacuolization(GV), tubular dilatation(TD), Vascular vacuolisation and hypertrophy(VVH), tubular cell degeneration and necrosis(TCDN), Bowman's space dilatation(BSD), tubular hyaline cylinders(THC), lymphocyte infiltration(LI), tubular cell sloughing(TCS), significant difference was observed for the kidney at the obstruction side. After 3 weeks, in the side of the all unobstructed groups' kidney tissues, significantly higher GV scores were detected compared with the GroupC. TD was observed more for the UUO1, UUO3 and UUO3S groups when compared with GroupC. And TCDN was observed more for the UUO1S and UUO3S groups when compared with GroupC. When the groups were compared with each other; it is observed that MDA and NO enzyme activities of UUO1S, UUO3 and UUO3S groups were significantly difference GroupC. Conclusion: High dose of sugammadex (96 mg.kg(-1)) can be used safely in UUO cases, on the other hand significant attention should be paid in bilateral ureteral obstruction cases. Our findings may be a guide for future animal and human studies investigating the effects of sugammadex on kidney tissue.
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    Effects of the general anaesthetic agent, propofol, on erythrocyte deformability
    (Comenius Univ, 2010) Arslan, Mustafa; Comu, Faruk Metin; Isik, Berrin; Unal, Yusuf; Cekmen, Nedim; Kurtipek, Omer
    Objectives: Propofol is an anesthetic agent frequently used for sedation and general anesthesia. The purpose of our study was to investigate the effect of propofol, a general anesthetic, on erythrocyte deformability in rats. Methodology: The study was performed on 20 male and 20 female rats, with 10 rats in each study group and 10 rats in each control group. The rats in the study group were administered propofol (150 mg.kg(-1)) intraperitoneally, and the rats in the control group were administered SF. Erythrocyte packs were prepared using heparinized total blood samples. Deformability measurements were done by erythrocyte suspensions in PBS buffer. A constant flow filtrometer system was used to measure erythrocyte deformability, and the relative resistance was calculated. Results: The use of propofol resulted in the increase in the relative resistance, which is an indicator for the erythrocyte deformability in both male and female rats (p=0.002, p=0.042, respectively). Conclusion: A negative change in the erythrocyte deformability may cause a functional deterioration in blood flow and tissue perfusion (Fig. 1, Ref. 23). Full Text (Free, PDF) www.bmj.sk.