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Neuroprotective Effects of Ebselen on Experimental Spinal Cord Injury in Rats

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Abstract

Spinal cord injury (SCI) results in rapid and significant oxidative stress. This study was aimed to investigate the possible beneficial effects of Ebselen in comparison with Methylprednisolone in experimental SCI. Thirty six Wistar albino rats (200–250 g) were divided in to six groups; A (control), B (only laminectomy), C (Trauma; laminectomy  + spinal trauma), D (Placebo group; laminectomy  + spinal trauma + serum physiologic), E (Methylprednisolone group; laminectomy  + spinal trauma + Methylprednisolone treated), F (Ebselen group; laminectomy  + spinal trauma + Ebselen treated), containing 6 rats each. Spinal cord injury (SCI) was performed by placement of an aneurysm clip, extradurally at the level of T11–12. After this application, group A, B and C were not treated with any drug. Group D received 1 ml serum physiologic. Group E received 30 mg/kg Methylprednisolone and, Group F received 10 mg/kg Ebselen intraperitoneally (i.p.). Rats were neurologically examined 24 h after trauma and spinal cord tissue samples had been harvested for both biochemical and histopathological evaluation. All rats were paraplegic after SCI except the ones in group A and B. Neurological scores were not different in traumatized rats than that of non-traumatized ones. SCI significantly increased spinal cord tissue malondialdehyde (MDA) and protein carbonyl (PC) levels and also decreased superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase (CAT) enzyme activities compared to control. Methylprednisolone and Ebselen treatment decreased tissue MDA and PC levels and prevented inhibition of the enzymes SOD, GSH-Px and CAT in the tissues. However, the best results were obtained with Ebselen. In groups C and D, the neurons of the spinal cord tissue became extensively dark and degenerated with picnotic nuclei. The morphology of neurons in groups E and F were very well protected, but not as good as the control group. The number of neurons in the spinal cord tissues of the groups C and D were significantly less than the groups A, B, E and F. We concluded that the use of Ebselen treatment might have potential benefits in spinal cord tissue damage on clinical grounds.

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Authors and Affiliations

  1. Faculty of Medicine, Department of Neurosurgery, Zonguldak Karaelmas University, Zonguldak, Turkey

    Murat Kalayci, Ferda Cagavi, Sanser Gul & Bektas Acikgoz

  2. Faculty of Medicine, Department of Histology and Embriyology Edirne, Trakya University, Turkey

    Omer Coskun & Mehmet Kanter

  3. Faculty of Medicine, Department of Biochemistry, Zonguldak Karaelmas University, Zonguldak, Turkey

    Ferah Armutcu

  4. Tarkya University, Edrine, Turkey

    Omer Coskun

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  1. Murat Kalayci
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  2. Omer Coskun
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Kalayci, M., Coskun, O., Cagavi, F. et al. Neuroprotective Effects of Ebselen on Experimental Spinal Cord Injury in Rats. Neurochem Res 30, 403–410 (2005). https://doi.org/10.1007/s11064-005-2615-2

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