摘要
目的探讨局部应用纤维蛋白凝胶携载血管内皮生长因子,对损伤坐骨神经再生的影响,为临床药物治疗坐骨神经损伤提供实验依据。方法将36只Wistar大鼠左侧坐骨神经切断,神经两断端原位缝合,制作大鼠坐骨神经损伤动物模型。然后将大鼠随机分成实验组(纤维蛋白凝胶携载血管内皮生长因子给药组)与对照组(血管内皮生长因子基因转染给药组),每组18只,于用药后8、12周行肉眼观察、光镜观察,图像分析仪行神经断面分析,测轴突直径、髓鞘厚度和有髓神经纤维数目。结果实验组8周的轴突直径、髓鞘厚度和有髓神经纤维数目和对照组相比差异有统计学意义(P<0.05),12周时2组差异无统计学意义(P>0.05)。结论纤维蛋白凝胶可以作为血管内皮生长因子的载体。纤维蛋白凝胶携载血管内皮生长因子给药可以促进损伤神经结构和功能的恢复。
Objective To investigate the effects of exogenous vascular endothelial growth factor （VEGF） mixed with fibrin glue （FG） as a carrier on nerve regeneration in repairing rat sciatic nerve injury .Methods The rat sciatic nerve injury model was made by cutting off the left sciatic nerve of rat and suturing in normal position . Thirty-six Wistar rats were randomly divided into experimental group （VEGF mixed with fibrin glue group ） and control group（ gene transfection group） ,with 18 in each .Gross appearance ,light microscopic observation ,nerve sectional image analysis were performed at 8 and 12 weeks after medication to measure the mean diameter of neuraxis ,thickness of myelin sheath and total number of myelinated fiber .Results There was significant devia-tion in the mean diameter of neuraxis ,thickness of myelin sheath and total number of myelinated fiber at 8 week after medication compared with the control group （P〈0.05） and no significant deviation at 12 week （P〉0.05） . Conclusion Fibrin glue can be used as a carrier for VEGF to repair injured sciatic nerves .These results indicate locally VEGF mixed with fibrin glue can exert nerve regeneration in the injured sciatic nerve area and enhance neu-rological function recovery of the sciatic nerve injured rats .
出处
《山西医药杂志》
CAS
2014年第15期1778-1781,共4页
Shanxi Medical Journal
