Tablado L, Pérez-Sánchez F, Soler C
Department of Animal Biology, University of Valencia, Burjassot, Spain.
Environ Health Perspect. 1996 Nov;104(11):1212-6. doi: 10.1289/ehp.961041212.
Kinematic parameters were evaluated in mouse epididymal extracts to monitor maturation of sperm movement in animals exposed to static magnetic fields using the Sperm-Class Analyzer computerized image analysis system. For this purpose, animals were exposed to a field of 0.7 T generated by a permanent magnet over 10 or 35 days for either 1 or 24 hr/day. The values of the motion endpoints were similar in animals used as controls and in those exposed to the nonionizing radiation, whatever the period of exposure or daily dosage. Changes in motility were observed in all groups: the percentage of total motile and progressive motile spermatozoa increased during passage through the epididymis, with major changes between the caput and corpus epididymides, and the pattern of swimming changed clearly towards more rapid and straighter trajectories. The processes of initiation of sperm motility and maturation of displacement patterns were not then affected by magnetic treatment. Moreover, it appears that sperm production is unaffected because no changes were observed in testicular or epididymal weights after exposure to static magnetic fields.
使用精子分类分析仪计算机图像分析系统，在小鼠附睾提取物中评估运动学参数，以监测暴露于静磁场的动物精子运动的成熟情况。为此，将动物暴露于由永久磁铁产生的0.7T磁场中，持续10天或35天，每天暴露1小时或24小时。无论暴露时间或每日剂量如何，用作对照的动物和暴露于非电离辐射的动物的运动终点值相似。所有组均观察到运动能力的变化：在精子通过附睾的过程中，总活动精子和进行性活动精子的百分比增加，在附睾头和附睾体之间有主要变化，并且游动模式明显朝着更快、更直的轨迹变化。精子运动的起始过程和位移模式的成熟过程未受到磁处理的影响。此外，似乎精子产生未受影响，因为在暴露于静磁场后，睾丸或附睾重量未观察到变化。
