Effects of irradiation of magnetized semiconductor laser on neural functional recovery
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摘要: 探讨了磁作用半导体激光对家兔神经功能恢复的影响.将家兔随机分为3周,6周,9周和12周4个观察期,每个观察期随机分为磁作用激光照射组、激光照射组和对照组.麻醉后,均切断左侧腓总神经,用9/0尼龙单丝对端吻合神经外膜.各照射组在术后1d开始照射家兔L5,L6脊髓节段,每天照射5min,连续照射7d.对照组不照射,均按期观察.术后3周,各照射组看到细小而稀少的再生轴突,磁作用激光组优于激光组和对照组;各照射组的腓总神经潜伏速率和动作电位波幅均优于对照组,磁作用激光组优于激光组.展趾功能到术后12周,磁作用激光组与右侧相同,激光组和对照组分别恢复到磁作用组9周和6周水平.低功率的磁半导体激光促进了脊髓运动神经细胞功能的恢复,加速了轴突再生.Abstract: The effect on neural functional recovery irradiated by magnetized low intensity semiconductor laser is studied.The rabbits were divided into 3week,6week,9week,12week groups according to the observation period.The magnetized laser irradiated group,the laser irradiated group and the control group were used in each observation period.Irradiated the rabbits with injury of common personeal nerve in the laser irradiated group and the magnetized laser group,for 5min once a day,in 7 days.The regeneration of the axon,the latent rate of the common personeal nerve,the toe expansion test were all observed systematically in the groups.A few thin-regenerated axon were seen at 3rd week in the irradiated groups.The magnetized laser irradiated group was better than the laser irradiated group.The latent rate of the common personeal nerve was the magnetized laser irradiated groups than in control and the laser group.The amplitude of the irradiated groups was higher than in control.12 weeks postoperatively,the toe extension test was normal in the magnetized laser irradiated group,while among the laser irradiated group it was the same as seen at 9th week after operation in the magnetized laser irradiated group,and it was the same as seen at 6th week after operation among the control group.Magnetized low intensity semiconductor laser could promote the function of the spine motor nerve cells and accelerate the axonal regeneration.
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Keywords:
- magnetic laser /
- nerve /
- electrophysiology /
- rabbits
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[1] Rochkin S,Nisan M,Barr N L et al.Experiment Studies:Laser Surgery and Medicine,1987,7:441～443.
[2] 徐新智,吕荣,石凯军 et al.中华物理医学与康复杂志,2001,23(5):291～293. [3] 莫华,何萍,梁爱宣 et al.中国医学物理学杂志,2003,20(1):25～30. [4] 李文健,石秉霞,邵济钧 et al.中华物理医学与康复杂志,2001,23(5):294～297. [5] Brushart T M,Monini L,Brunelli F.Microsurgery,1985,6(4):187～188.
[6] Cordeira P G,Seckel B R,Miller C D et al.Plast Reconstr Surg,1989,83:301～303.
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