Role of lamotrigine in repair of hemisection of spinal cord in mice models
10.3760/cma.j.issn.1671-8925.2015.08.007
- VernacularTitle:拉莫三嗪在小鼠脊髓背侧半横断损伤修复中的作用
- Author:
Qiang FU
1
;
Zhaotao WANG
;
Maoying ZHANG
;
Ruxiang XU
Author Information
1. 解放军医学院
- Keywords:
Spinal cord injury;
Lamotrigine;
Glial cell;
Inflammatory factor
- From:
Chinese Journal of Neuromedicine
2015;14(8):789-793
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect oflamotrigine (LTG) on repair ofhemisection of spinal cord in mice models.Methods A total of 80 female C57BL/6 mice were employed to establish the models of spinal cord hemisection,and randomly divided into 3 groups:spinal cord injury (SCI) group (n=27),SCI+LTG group (n=26) and SCI+0.9％ saline group (n=26);mice in SCI+LTG group were given intraperitoneal injection oflamotrigine (25 mg/kg) for a consecutive 7 d,and mice in the SCI+0.9％ saline group were given the same volume of 0.9％ saline.Basso,Beatti,Bresnahan (BBB) scale was performed 1,7 and 14 d after SCI;6 mice in each group were sacrificed 1,7 and 14 d after SCI,and glial fiber acidic protein (GFAP) and ionized calcium-binding adaptor molecule 1 (Iba1)-positive cells were observed by immunofluorescence and the expressions of inflammatory factors interleukin (IL)-1,IL-10 and tumor necrosis factor (TNF-α) were observed by ELISA.Results On the 7th and 14th d of injury,the BBB scale scores in the SCI+LTG group were significantly higher than those in the SCI group and SCI+0.9％ saline group (7 d:5.1667±0.40825,4.0000±0.63246 and3.8333±0.40825;14 d:6.5000± 0.5477,5.5000±0.5477 and 5.3333±0.5164,P＜0.05).On the 7th and 14th d of injury,less percentage of GFAP positive ftuorenscent area and fewer number of Iba1 positive cells in the SCI+LTG group were noted than those in the SCI group and SCI+0.9％ saline group (P＜0.05).On the 7th d of SCI,the IL-1 and IL-10 expressions in the SCI+LTG group were obviously lower than those in the SCI group and SCI+ 0.9％ saline group (P＜0.05).Conclusion Lamotrigine improves the motor function after SCI by decreasing the secretion of inflammatory factors and activation of glial cells.
