Abstract：
STUDY DESIGN:Spinal cord injured rat model, treated with soluble complement receptor type 1 (sCR1). SETTING:Experimental Animal Department of China Medical University, Shenyang, China. OBJECTIVES:Soluble CR1 is a powerful inhibitor of complement activation. In this study, we investigate the effectiveness of sCR1 on spinal cord injury (SCI) in rats. METHODS:Spinal cord injury was induced in Sprague-Dawley rats. Three experimental groups were examined; the sCR1 group was administered sCR1 at 1 h after the SCI, whereas the control group was administered saline at 1 h after SCI and the sham group underwent a sham operation without SCI or administration. The expressions of C9 and CD59 in the injured spinal cords were evaluated by immunohistochemistry, and numbers of positive cells counted. Furthermore, myeloperoxidase (MPO) activity and motor function were evaluated in each group. RESULTS:At all postoperative time points, the numbers of C9- and CD59-positive cells in the sCR1 group were reduced compared with the control group and MPO activity was significantly decreased compared with both other groups. Moreover, the Basso, Beattie and Bresnahan score for the sCR1 group was significantly improved as compared with that of the control group after 7 days postoperatively. CONCLUSION:Soluble CR1 decreases inflammation reactions by inhibiting activation of the complement system and improves motor function after acute SCI.
journal_name
Spinal Cordjournal_title
Spinal cordauthors
Li LM,Li JB,Zhu Y,Fan GYdoi
10.1038/sc.2009.104subject
Has Abstractpub_date
2010-02-01 00:00:00pages
105-11issue
2eissn
1362-4393issn
1476-5624pii
sc2009104journal_volume
48pub_type
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