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Öğe Beneficial effects of nontoxic ozone on H2O2-induced stress and inflammation(Canadian Science Publishing, 2016) Kucukgul, Altug; Erdogan, Suat; Gonenci, Ramazan; Ozan, GoncaIn this study, the anti-oxidant and anti-inflammatory efficacy of ozone oxidative preconditioning (OOP) were investigated on hydrogen peroxide (H2O2)-induced human lung alveolar cells. In MTT and trypan blue viability tests, while 100 mu mol/L H2O2 caused a 17.3% and 21.9% decrease in the number of living cells, respectively, ozone at 20 mu mol/L regenerated cell proliferation and prevented 9.6% and 11.0% of cell loss, respectively. In addition, H2O2 decreased the transcription levels of catalase (CAT), glutathione peroxidase (GPx), and superoxide dismutase (SOD) 5.43-, 2.89-, and 5.33-fold, respectively, while it increased Bax, NF-kappa beta, TNF-alpha, and iNOS expression 1.57-, 1.32-, 1.40-, and 1.41-fold, respectively. Ozone pretreatment, however, increased CAT, GPx, and SOD transcription levels 7.08-, 5.17-, and 6.49-fold and decreased Bax, NF-kappa beta, TNF-alpha, and iNOS transcriptions by 1.25-, 0.76-, 3.63-, and 7.91-fold, respectively. Moreover, intracellular glutathione (GSH) level and SOD activity were decreased by 46.2% and 45.0% in the H2O2 treatment group, and OOP recovered 58.5% and 20.1% of the decreases caused by H2O2. H2O2 also increased nitrite levels 7.84-fold, and OOP reduced this increase by half. Consequently, OOP demonstrated potent anti-oxidant and anti-inflammatory effects on in vitro model of oxidative stress-induced lung injury.Öğe The Effect of Cape on Steroid Induced Osteonecrosis of the Femoral Head in Rat Model Hide(Journal Hard Tissue Biology, 2018) Uruc, Vedat; Duman, Ibrahim Gokhan; Davul, Serkan; Ozden, Raif; Gonenci, Ramazan; Gokce, Hasan; Dokuyucu, RecepThe aim of this experimental study was to examine the effect of Caffeic acid phenethyl ester (CAPE) on steroid-induced osteonecrosis of femoral head (ONFH) in rats. Thirty-one male Wistar albino rats were divided into 4 groups: control group (7 rats), methylprednisolone treatment group (MPS, 8 rats), CAPE treatment group (8 rats) and MPS+CAPE administered group (8 rats). The rats of group MPS and CAPE+MPS, On days 2, 3 and 4 were treated with 20 mg/kg/day methylprednisolone (MPS; Pfizer Pharmaceutical, Puurs, Belgium) intramuscularly. 10 mu mol/kg/day CAPE was intraperitoneally injected to the rats of group CAPE from 13 weeks of age for 4 weeks. The control group was fed and housed under identical conditions without any treatment. All rats were sacrificed at 17 weeks of age by taking blood from the heart. Both proximal femoral parts were taken for histopathological and immunohistochemical analysis . Total oxidant status, total antioxidant status, and oxidative stress index (OSI), lipid parameters, coagulation parameters were assessed in blood specimens. Much lesser amount of osteonecrosis lesions were observed in the MPS+CAPE group compared to MPS group. In immunhisochemical analysis, oxidative stress was found significantly decreased in CAPE+MPS group compared to MPS group. OSI levels were significantly decreased in CAPE+MPS group compared to MPS group (p<0.001). In CAPE+MPS group lipid and coagulation parameters were found positively affected compared to MPS group. In conclusion, CAPE has strong protective effect against the steroid induced femoral head osteonecrosis in rats.Öğe The Effect of Cefovecin Sodium in Shelter Dogs with Bacterial Lower Respiratory Disease(Inst Tecnologia Parana, 2023) Kose, Serkan Irfan; Ozer, Burcin; Gonenci, Ramazan; Cantekin, ZaferThis study evaluated the clinical and bacteriological efficacy of cefovecin sodium in shelter dogs with bacterial lower respiratory disease. All dogs (n = 32) with lower respiratory disease were divided into two treatment groups: the cefovecin (n = 16) and the ceftriaxone (n = 16) groups. On the first five days and the 8th day of treatment, and after treatment (15th day), the examination of all dogs was performed. Blood analysis and thoracic radiographic imaging were done. In bronchoalveolar lavage fluids, in the cefovecin group, Bordetella bronchiseptica (n=13), Staphylococcus spp. (n=9), Streptococcus spp. (n=7), Klebsiella pneumonia (n=1); in the ceftriaxone group; B. bronchiseptica (n=5), Escherichia coli (n=5), Pasteurella canis (n=4), Streptococcus spp. (n=3), Staphylococcus aureus (n=1), Pasteurella aerogenes (n=1) and Klebsiella oxytoca (n=1) were isolated and identified. Cefovecin and ceftriaxone sodium treatment protocols had anti-bacterial efficacies of 68.75% and 100%, respectively. In light of the study results, it is concluded that although cefovecin sodium looks to be an antibacterial drug that may be used to treat bacterial lower respiratory tract infections in shelter dogs due to its ease of use, cefovecin and other cephalosporins should not be used empirically as they may contribute to bacterial resistance.Öğe The effect of electroacupuncture on the thyroid hormones and cortisol levels in dogs(2009) Atlug, Muhammed Enes; Gonenci, Ramazan; Tas, Abuzer; Durgut, Ramazan[No abstract available]Öğe Effects of Bovine Amniotic Fluid on Acute Corneal Alkali Burns in the Rat(Medwell Online, 2009) Gonenci, Ramazan; Altug, Muhammed Enes; Koc, Ahmet; Yalcin, AlperBovine Amniotic Fluid (BAF) was topically applied for treatment group, whereas isotonic saline solution was applied for saline group in the study after an alkali burn was created in the right eye of 16 rats with 2.5 N NaOH. Density and area of the corneal opacity, area of the corneal epithelial defect, corneal neovascularization and complications were clinically evaluated and scored using a modified model at post-injury days 0, 3, 7 and 14. At the end of the experiment, all the eyes were histologically examined after enucleation. It was resultantly found that BAF has slightly decreased corneal opacification, increased reepithelization and limited neovascularization, hyphema and total corneal erosions. But these clinical ocular damage scores were not statistically significant. In histological examination, the number of polymorphonuclear leucocytes, corneal thicknesses, edema, keratinization, vascularization and inflammation were significantly reduced by BAF compared to the saline group. Based on these positive effects in severe burns, it was concluded that BAF could be a new topical alternative agent for veterinary ophthalmology thereafter.Öğe Effects of Gaseous Ozone Treatment on Bone Regeneration in Femoral Defect Model in Rats(Journal Hard Tissue Biology, 2017) Duman, Ibrahim Gokhan; Davul, Serkan; Gokce, Hasan; Gonenci, Ramazan; Ozden, Raif; Uruc, VedatThe purpose of this study was to investigate the effect of ozone therapy in rat femoral fractures. Following the right open femoral fractures and intramedullary Kirschner wire fixation of the fracture in 60 male Wistar albino rats, the animals were divided into two groups of 30 animals each: ozone therapy group (n=30); non-treatment (control) group (n=30). Ozone was administered by rectal insufflation. After the rats were sacrified fracture healing was assessed by biomechanical and histopathologic evaluation. Histological and mechanical findings indicated that the ozone therapy had a significantly positive effect on bone healing.Öğe Effects of the Bovine Amniotic Membrane on Corneal Healing with Acute Alkali Burns in Rabbits(Medwell Online, 2009) Gonenci, Ramazan; Altug, Muhammed Enes; Koc, Ahmet; Oksuz, Huseyin; Yuksel, HayatiThe Bovine Amniotic Membrane (BAM) was transplanted on the right comea of 8 adult rabbits after an alkali burn was created with 2.5 N NaOH. Density and area of the corneal opacity, area of the corneal epithelial defect, vascularization and complications were clinically evaluated. Left corneas of the same animals were used as active control group. At the end of the experiment, all the eyes were extirpated and histologically examined on light microscopy. BAM has decreased density and area of the corneal opacity and increased reepithelialisation, but promoted episcleral vasodilatation more prominently in clinical examination. Histologically; the distrubition of Polymorphonuclear (PMN) leucocytes, corneal thicknesses, edema, keratinization, neovascularization and inflammation were significantly reduced by BAM compared to active control group. BAM was highly found to be effective to restore the corneal surface with acute alkali burns in the rabbit.Öğe Effects of the bovine aniniotic membrane on comeal healing with acute alkali burns hi rabbits(2009) Gonenci, Ramazan; Altug, Muhammed Enes; Koc, Ahmet; Oksuz, Huseyin; Yuksel, HayatiThe Bovine Ammotic Membrane (BAM) was transplanted on the right cornea of 8 adult rabbits after an alkali burn was created with 2.5 N NaOH. Density and area of the corneal opacity, area of the corneal epithelial defect, vascularization and complications were clinically evaluated. Left corneas of the same animals were used as active control group. At the end of the experiment, all the eyes were extirpated and histologically examined on light microscopy. BAM has decreased density and area of the corneal opacity and increased reepithelialisation, but promoted episcleral vasodilatation more prominently in clinical examination. Histologically; the distrubition of Polymorphonuclear (PMN) leucocytes, corneal thicknesses, edema, keratinization, neovascularization and inflammation were significantly reduced by BAM compared to active control group. BAM was highly found to be effective to restore the corneal surface with acute alkali burns in the rabbit. © Medwell Journals, 2009.Öğe Investigation of the anti-apoptotic activity of ozone therapy in rainbow trout macrophages infected with Yersinia ruckeri(Springer, 2019) Kucukgul, Azime; Kucukgul, Altug; Gonenci, Ramazan; Ozsoy, Sule Yurdagul; Kutlu, Banu; Isgor, Mehmet MustafaYersinia ruckeri is the causal agent of enteric redmouth (ERM) in trout. This study aimed to investigate the effectiveness of nontoxic ozone on Y. ruckeri-infected trout cells in in vitro conditions. Rainbow trout macrophages (RTS-11) were exposed to Y. ruckeri for 24h after being incubated with the ozonized medium at nontoxic concentration. Effective concentrations of nontoxic ozone (3 gamma) and bacteria (1.5x10(8)cfu/mL) were determined by viability tests. The expression of caspases 1, 3, 8, and 12 was determined by real-time PCR and protein levels investigated by ELISA method. Apoptotic-necrotic cell ratios were determined by acridine orange and ethidium bromide staining. Bacterial stimulations of caspases (1, 3, 8, and 12) were suppressed by ozone mostly at the translational level. While bacterial infection increased the count of apoptotic and necrotic cells at different stages, ozone significantly reduced this condition. Obtained data indicate possible use of nontoxic ozone as a safe and effective treatment alternative for increasing host defenses and eliminating the infection in the case of yersiniosis in fish.Öğe Preventive and Curative Effects of Medical Ozone in Rats Exposed to Experimental Osteomyelitis(Univ Agriculture, Fac Veterinary Science, 2017) Gonenci, Ramazan; Tabur, Mehmet; Ozsoy, Sule YurdagulInvestigation of preventive and therapeutic effects of medical ozone in rats with acute osteomyelitis was aimed in this study. Staphylococcus aureus solution was injected intramedullary into right femurs of each animal to form acute osteomyelitis. Preventive Osteomyelitis Group (POG) was taken an ozone session by rectal insufflation daily at a dose of 500 mu g/kg for 15 days with an ozone generator starting a week before microorganism injections, whereas applied nothing to Untreated Osteomyelitis Group (UOG). Treatment Osteomyelitis Group (TOG) was administered the same ozone therapy sessions as POG. But this application was started just after 4 days following the microorganism injection. At the end of the ozone-therapy, two femurs of each animal in 3 groups were excised and examined radiographically, microbiologically and histopathologically. It was found that radiographical differences between UOG and other two osteomyelitis groups were significant, but those between POG and TOG were insignificant. There was not any microbiological reproduction in conventional culture methods. Histopathologically; mild, moderate and severe inflammation findings in the POG, TOG and UOG were observed respectively. Histopathological healing was significant in TOG compared to UOG, and it was significant in POG compared to TOG. Conclusively, it was thought that preventive and curative effects of medical ozone in rats exposed to experimental osteomyelitis had been found. (C) 2017 PVJ. All rights reservedÖğe Protective Effect of Thymoquinone in Experimental Testicular Torsion(Karger, 2010) Gokce, Ahmet; Oktar, Suleyman; Koc, Ahmet; Gonenci, Ramazan; Yalcinkaya, Fatih; Yonden, Zafer; Duru, MehmetObjectives: To investigate the protective role of thymoquinone (TQ) on unilateral testicular ischemia-reperfusion (I/R) injury in mice. Materials and Methods: Experiments were performed on male C57BL/6 mice (8 weeks old, 20-25 g). The animals were divided into 3 groups including 6 mice in each group: control (sham), torsion/detorsion (TD) and TD+TQ. Mice, except the sham-operated group, were subjected to left unilateral torsion (720 degrees rotation in the clockwise direction). The experiments were finished after sham operation time for controls, 120 min torsion and 240 min detorsion for the other groups. In the TD+TQ group 10 mg TQ was injected intraperitoneally 30 min before detorsion. Results: In the TD group total oxidative stress (TOS), oxidative stress index (OSI) and malondialdehyde (MDA) levels were higher than in the controls. TQ treatment decreased MDA, TOS and OSI values, but did not affect the total antioxidant capacity and myeloperoxidase activity in the TD+TQ group. Upon histological examination, mice in the TD group displayed moderate-to-severe disruption of the seminiferous epithelium. Treatment with TQ resulted in significantly reduced histological damage associated with I/R injury. Conclusion: Our results suggested that TQ treatment may have a protective effect on testicular I/R injury. Copyright (C) 2010 S. Karger AG, Basel
