کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4349085 | 1296923 | 2007 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Local Nogo-66 administration reduces neuropathic pain after sciatic nerve transection in rat Local Nogo-66 administration reduces neuropathic pain after sciatic nerve transection in rat](/preview/png/4349085.png)
Neuropathic pain after periphery nerve injury is frequently accompanied by the regeneration of the injured nerve fibers. We tested in this study whether local administration of Nogo-66, a well-studied axon growth inhibiting peptide in the central nerve system, could reduce the pain related behavior after sciatic nerve transection in rat. Nogo-66 peptide was purified as a GST fusion protein. Its inhibitory function was testified by neurite outgrowth assay of primary cultured neurons, and then it was given directly at the lesion site by a minipump for 2 weeks. Mechanical nociceptive withdrawal responses and heat hyperalgesia responses were assessed during a 4-week period, and autotomy was evaluated during a 6-week period. The results showed that the mechanical allodynia and heat hyperalgesia scores of the rats treated with GST-Nogo-66 were significantly higher than the controls between 7 and 14 days after sciatic nerve transection. The autotomy scores in the GST-Nogo-66 group were significantly lower than the controls from 28 days after surgery. Taken together, the results of our present study suggest that Nogo-66 may be utilized to decrease the neuropathic pain after periphery nerve injury.
Journal: Neuroscience Letters - Volume 424, Issue 3, 13 September 2007, Pages 145–148