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    Effect of Ficus carica (fig) seed oil administration on GSH levels, necrosis and cast formation in myoglobinuric acute kidney injury
    (CUKUROVA UNIV, 2022) İşler, Derya; Şirinyıldız, Ferhat; Ek, Rauf Onur
    Purpose: In this study, the effect of applying different doses of Ficus carica (fig) seed oil obtained by cold pressing method on the kidney tissue and serum GSH level, as well as the formation of necrosis and cast in the experimental myoglobinuric acute kidney injury animal model created with glycerol was investigated. Materials and Methods: 32 Wistar albino male rats weighing 460-540 g were randomly divided into four groups of 8 each. Sham Control, MAKI, MAKI+FC3, MAKI+FC6. Urea and creatinine levels of the groups were analyzed by biochemical method. Tissue necrosis level was determined by histological analysis of kidney tissue sections. Results: While urea and creatinine levels increased significantly in the MAKI group compared to all groups, they were found to be lower in the high and low dose treatment groups with no significant difference between them. Tissue and serum GSH levels in the MAKI group were significantly decreased compared to all groups. In the MAKI+FC3 and MAKI+FC6 groups, an increase was detected in the tissue without dose difference, and in the serum only with high dose. The highest score in kidney tissue cast and necrosis levels were observed in the MAKI group, while significant improvements were detected in the treatment groups. Conclusion: Ficus carica(fig) seed oil, provided improvement in morphological damage with improvement in functional damage and increase in antioxidative capacity.
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    Effects of One-Time Linalool Administration at Different Doses on Acute Mesenteric Ischemia Reperfusion Injury
    (Wiley, 2023) Sirinyildiz, Ferhat; Ek, Rauf Onur; Irmak, Duygu Koyuncu
    [Abstract Not Available]
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    Protective and therapeutic effects of Beta Glucan administration on experimental ulcerative colitis model induced by TNBS
    (Duzce University Medical School, 2021) Tokmak, D.; Şirinyıldız, F.; Ek, Rauf Onur
    Aim: In this study, it was aimed to investigate the effects of beta glucan (BG) on the experimental colitis model created by using trinitrobenzene sulfonic acid (TNBS). Material and Methods: Thirty-two Wistar Albino rats were divided equally into four groups as sham control, TNBS, TNBS-BG3, and TNBS-BG10 groups. While saline was administrated to sham group, TNBS was administered intrarectally to the TNBS groups under anesthesia. BG was administered at a dose of 100 mg/kg by oral gavage, intragastrically, for 3 days (TNBS+3) to the TNBS-BG3 group and for 10 days (7+TNBS+3) to the TNBS-BG10 group. At the end of the study, macroscopic, histological and biochemical tests were applied to the colon tissues taken. Results: It was determined by histopathological scoring and biochemical results that BG administration caused positive effects on colon damage due to colitis. Malondialdehyde level and myeloperoxidase activity were found to be significantly higher in the TNBS group compared to the other groups (p=0.003 and p<0.001, respectively). Antioxidant levels increased in BG treated groups compared to TNBS group. While this increase was statistically significant among glutathione levels (p<0.001), it was not statistically significant in catalase enzyme activity (p=0.218). BG administration reduced the increase in lipid peroxidation and leukocyte infiltration level in the colon tissue. Positive changes due to the prophylactic effect of BG were determined in histological and biochemical results. Conclusion: BG administration has been found to show anti-inflammatory and antioxidant properties, and BG has a treatment potential in reducing colon tissue damage due to TNBS-induced colitis. © 2021, Duzce University Medical School. All rights reserved.