动物体位对电磁场生物效应的影响

Animal body position induces electromagnetic field bioeffects

目的 探讨动物体位在电磁场生物效应中的意义 .方法 通过经典的 Y-型迷宫法和改良的开阔法检验电磁场照射后不同体位 (身体长轴与磁力线方向平行、垂直或者自由体位 )小鼠的学习记忆能力和主观探索能力 .结果 电磁场照射后不同时间 ,不同体位小鼠学习记忆能力无显著差别 ,而探索反射有差别 . 40 k V· m- 1电磁场照射后即刻 ,平行磁力线体位组小鼠探索性反射显著低于自由体位组 (P<0 .0 5 ) .照射后 4wk,40 k V· m- 1 强度中平行磁力线体位组小鼠探索性反射显著高于自由体位组 (P<0 .0 5 ) ,8k V· m- 1强度下平行磁力线体位组小鼠探索性反射显著低于自由体位组 (P<0 .0 5 ) ,80 k V· m- 1 强度下垂直磁力线体位组小鼠探索性反射显著高于自由体位组 (P<0 .0 5 ) .

AIM To investigate the influence of animal body position on electromagnetic field (EMF) bioeffects. METHODS By using classical Y maze method and improved open field method, the learning ability and the investigation reflex of mice in different body position (the long body axes of animal are parallel, vertical or uncontrolled to the direction of magnetic force) after EMF exposure was measured. RESULTS There was no obvious difference in learning ability of mice between different position groups after exposure, but their investigation reflexes were different. Immediately after 40 kV·m -1 EMF exposure, the investigation reflexes of mice in parallel group was obviously lower than those of mice in uncontrolled group ( P <0.05). Four weeks after exposure, the investigation reflexes of mice in 40 kV·m -1 parallel group were obviously higher than those of mice in 40 kV·m -1 uncontrolled group; the investigation reflexes of mice in 8 kV·m -1 parallel group were obviously lower than those of mice in uncontrolled group; and the investigation reflexes of mice in 80 kV·m -1 vertical group were obviously higher than those of mice in 80 kV·m -1 uncontrolled group ( P <0.05). CONCLUSION Body position of mice in EMF field can induce the bioeffects.