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مجله زیست شناسی اروپای مرکزی 2014
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  • protective effects of glucosamine-kynurenic acid after compression-induced spinal cord injury in the rat

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
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     kynurenic acid (kyna), a metabolite of the essential amino acid l-tryptophan, is a broad spectrum antagonist of excitatory amino acid receptors, which have also anticonvulsant and neuroprotective properties. after spinal cord injury (sci), excitotoxicity is considered to play a significant role in the processes of secondary tissue destruction in both grey and white matter of the spinal cord. in this study, we have tested the potential therapeutic effect of glucosamine-kynurenic acid, administered after experimental compression-induced sci in the rat. spinal application of glucosamine-kynurenic acid continually for 24 hr after experimental sci resulted in improved motor function recovery, beginning from the first week of evaluation and continuing until the end of the study (4 weeks). after 4 weeks’ survival, quantitative morphometric analysis of the spinal cord showed that glucosamine-kynurenic acid treatment was associated with improved tissue preservation at the lesion site. these findings indicate that spinal application of glucosaminekynurenic acid is neuroprotective and improves the outcome even when administered after spinal trauma. our results suggest that the treatments initiated in early posttraumatic period can alleviate secondary injury and improve the final outcome after sci.

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