Yazar "Erguder, Berrin Imge" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim Yok
    Öğe
    Cerebrolysin Amelioration of Spinal Cord Ischemia/ Reperfusion Injury in Rabbit Model
    (Turkish Neurosurgical Soc, 2023) Tonge, Caghan; Bektasoglu, Pinar Kuru; Gulmez, Ahmet; Turkoglu, M. Erhan; Arikok, Ata Turker; Erguder, Berrin Imge; Gurer, Bora
    AIM: To investigate the effects of cerebrolysin on inflammation, oxidative stress, apoptosis, and neurologic recovery in the setting of an experimental rabbit model of spinal cord ischemia/reperfusion injury (SCIRI).MATERIAL and METHODS: Rabbits were randomly divided into five groups: control, ischemia, vehicle, methylprednisolone (30 mg/kg), and cerebrolysin (5 ml/kg) group. The rabbits in the control group underwent only laparotomy; the other groups underwent spinal cord ischemia and reperfusion injury for 20 minutes. Neurologic examination after 24 hours was based on the Modified Tarlov scale. Myeloperoxidase activities, catalase and malondialdehyde levels, and caspase-3 concentrations were determined in serum and tissue samples. Serum xanthine oxidase levels were studied and histopathological and ultrastructural changes were examined. RESULTS: After SCIRI, serum and tissue myeloperoxidase activities, malondialdehyde levels, caspase-3 concentrations, and serum xanthine oxidase activities were increased (p<0.01-0.001). Catalase levels were significantly diminished (p<0.001). Cerebrolysin treatment correlated with reduced myeloperoxidase and xanthine oxidase activities, malondialdehyde levels and caspase-3 concentrations; and with increased catalase levels (p<0.001, for all). The cerebrolysin group showed improved histopathological, ultrastructural, and neurological outcomes.CONCLUSION: For the first time in the literature, the current study reports anti-inflammatory, antioxidant, antiapoptotic, and neuroprotective effects of cerebrolysin in a SCIRI rabbit model.
  • Küçük Resim Yok
    Öğe
    Mildronate Has Ameliorative Effects on the Experimental Ischemia/Reperfusion Injury Model in the Rabbit Spinal Cord
    (Elsevier Science Inc, 2023) Ozaydin, Dilan; Bektasoglu, Pinar Kuru; Ture, Durukan; Bozkurt, Huseyin; Erguder, Berrin Imge; Sargon, Mustafa Fevzi; Arikok, Ata Turker
    -BACKGROUND: Mildronate is a useful anti-ischemic agent and has antiinflammatory, antioxidant, and neuro-protective activities. The aim of this study is to investigate the potential neuroprotective effects of mildronate in the experimental rabbit spinal cord ischemia/reperfusion injury (SCIRI) model. -METHODS: Rabbits were randomized into 5 groups of 8 animals as groups 1 (control), 2 (ischemia), 3 (vehicle), 4 (30 mg/kg methylprednisolone [MP]), and 5 (100 mg/kg mildr-onate). The control group underwent only laparotomy. The other groups have the spinal cord ischemia model by a 20-minute aortic occlusion just caudal to the renal artery. The malondialdehyde and catalase levels and caspase-3, myeloperoxidase, and xanthine oxidase activities were investigated. Neurologic, histopathologic, and ultrastruc-tural evaluations were also performed. -RESULTS: The serum and tissue myeloperoxidase, malondialdehyde, and caspase-3 values of the ischemia and vehicle groups were statistically significantly higher than those of the MP and mildronate groups (P < 0.001). Serum and tissue catalase values of the ischemia and vehicle groups were statistically significantly lower than those of the control, MP, and mildronate groups (P< 0.001). The histopathologic evaluation showed a statistically significantly lower score in the mildronate and MP groups than in the ischemia and vehicle groups (P < 0.001). The modified Tarlov scores of the ischemia and vehicle groups were statistically significantly lower than those of the control, MP, and mildronate groups (P < 0.001).CONCLUSIONS: This study presented the antiin-flammatory, antioxidant, antiapoptotic, and neuroprotective effects of mildronate on SCIRI. Future studies will elucidate its possible use in clinical settings in SCIRI.
  • Küçük Resim Yok
    Öğe
    Neuroprotective Effects of Niacin on Ischemia/Reperfusion Injury of the Rabbit Spinal Cord
    (Elsevier Science Inc, 2023) Ermutlu, Ilcim; Fesli, Ramazan; Arikok, Ata Turker; Erguder, Berrin Imge; Kertmen, Hayri; Gurer, Bora
    -OBJECTIVE: Previous studies have shown niacin has neuroprotective effects on the central nervous system. However, its specific effect on spinal cord ischemia/ reperfusion injury has not yet been explored. This study aims to evaluate whether niacin can contribute neuro-protective effects on spinal cord ischemia/reperfusion injury. -METHODS: Rabbits were randomized into 4 groups of 8 animals: group I (control), group II (ischemia), group III (30 mg/kg methylprednisolone, intraperitoneal), and group IV (500 mg/kg niacin, intraperitoneal). The rabbits in group IV were premedicated with niacin for 7 days prior to inducing ischemia/reperfusion injury. The control group was subjected only to a laparotomy, while the remaining groups underwent spinal cord ischemia through a 20-minute occlusion of the aorta caudal to the left renal ar-tery. Following the procedure, levels of catalase, malon-dialdehyde, xanthine oxidase, myeloperoxidase, and caspase-3 were analyzed. Ultrastructural, histopatholog-ical, and neurological evaluations were also performed. -RESULTS: Spinal cord ischemia/reperfusion injury resulted in increased levels of xanthine oxidase, malon-dialdehyde, myeloperoxidase, and caspase-3, with a concomitant decrease in catalase levels. Treatment with methylprednisolone and niacin led to decreased levels of xanthine oxidase, malondialdehyde, myeloperoxidase, and caspase-3 and an increase in catalase. Both methylpred-n isolone and niacin treatments demonstrated improve-ments in histopathological, ultrastructural, and neurological assessments. -CONCLUSIONS: Our findings suggest that niacin has antiapoptotic, anti-inflammatory, antioxidant, and neuro-protective effects at least equal to methylprednisolone in ischemia/reperfusion injury of the spinal cord. This study is the first to report the neuroprotective impact of niacin on spinal cord ischemia/reperfusion injury. Further research is warranted to elucidate the role of niacin in this context.