CAJ | 학술논문

目的观察磁力线切割对神经传导的阻断作用. 方法雄性SD大鼠24只,用掷硬币随机法分为试验组和对照组各12只.试验组大鼠麻醉后,悬在镶嵌有恒磁体的铝盘上,使铝盘旋转,试验组大鼠的腰骶部以60 m/s的线速度被动切割磁力线.对照组做相同处置只是磁体无磁性.用100 g力夹持大鼠的右足1 s,观察大鼠的缩足反射. 结果磁力线切割中,试验组大鼠11只缩足反射消失,而对照组全部存在,两组比较差异有统计学意义(P＜0.05).磁力线切割停止后试验组有10只大鼠即刻恢复缩足反射,其余也在5 min内恢复,对照组全部有缩足反射,两组比较差异无统计学意义(P＞0.05). 结论当大鼠腰椎以60m/s的线速度被动切割磁力线时,大鼠后足的缩足反射被阻断.
목적 관찰자력선절할대신경전도적조단작용. 방법 웅성SD대서24지,용척경폐수궤법분위시험조화대조조각12지.시험조대서마취후,현재양감유항자체적려반상,사려반선전,시험조대서적요저부이60 m/s적선속도피동절할자력선.대조조주상동처치지시자체무자성.용100 g력협지대서적우족1 s,관찰대서적축족반사. 결과 자력선절할중,시험조대서11지축족반사소실,이대조조전부존재,량조비교차이유통계학의의(P＜0.05).자력선절할정지후시험조유10지대서즉각회복축족반사,기여야재5 min내회복,대조조전부유축족반사,량조비교차이무통계학의의(P＞0.05). 결론 당대서요추이60m/s적선속도피동절할자력선시,대서후족적축족반사피조단.
Objective To observe nerve conduction blocking effects of magnetic curve cutting. Methods Twenty-four male SD rats were randomly assigned to 2 groups: experiment group and control group. In the former, rats were anesthetized and hung over a alum plate in which 20 pieces of magnet were embedded. The alum plate was rotated so as to the lumbar spine of the rat could cut magnetic curve passively at a speed of 60 m/s. The control group received the same treatment except that the magnets had no magnetism. The right paw of rat was clamped with a 100 g force for 1 s, and the withdrawal reflex was observed. Results During magnetic curves cutting, the paw withdrawal reflex disappeared in 91.67% rats of experimental group, whereas it existed in all rats of control group. The difference was statistically significan (P＜0.05). Withdrawal reflex was recovered in 83.33% of rats in experimental group as soon as the cutting stopped, and the control group still remained the reflex; there was no significant difference between the 2 groups (P＞0.05). The rats whose reflex failed to recover at first in experimental group, rcovered 5 minutes later. Conclusions When the lumbar spine of a rat cuts magnetic curve passively, the hindlimb withdrawal reflex will be blocked.