Journal
JOURNAL OF SPINAL CORD MEDICINE
Volume 42, Issue 3, Pages 371-377Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10790268.2017.1397874
Keywords
Neuroglobin; Caspase-3; MDA; Spinal cord injury; Cytochrome c
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Objective: The present study was aimed to investigate the therapeutic potential of neuroglobin in the recovery of spinal cord injury. Methods: The male albino Wistar strain rats were used as an experimental model, and adeno associated virus (AAV) was administered in the T12 section of spinal cord ten days prior to the injury. Basso Beattie Bresnahan (BBB) locomotor rating scale was used to determine the recovery of the hind limb during four weeks post-operation. Malondialdehyde (MDA), catalase and superoxide dismutase (SOD) were determined in the spinal cord tissues. Terminal deoxynucleotidyl transferase (TdT) dUTP Nick-End Labeling (TUNEL) assay was carried out to determine the presence of apoptotic cells. Immunofluorescence analysis was carried out to determine the neuroglobin expression. Western blot analysis was carried out to determine the protein expressions of caspase-3, cytochrome c, bax and bcl-2 in the spinal cord tissues. Results: Experimental results showed that rats were recovered from the spinal cord injury due to increased neuroglobin expression. Lipid peroxidation was reduced, whereas catalase and SOD activity were increased in the spinal cord tissues. Apoptosis and lesions were significantly reduced in the spinal cord tissues. Caspase-3, cytochrome c and bax levels were significantly reduced, whereas bcl-2 expression was reduced in the spinal cord tissues. Conclusion: Taking all these data together, it is suggested that the increased neuroglobin expression could improve the locomotor function.
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