吸入麻醉剂对人精子运动功能影响的体外研究

目的:观察吸入麻醉剂在体外对人精子运动功能的影响。方法:选择人精液20份,上游法优化处理后随机分为异氟醚实验组和七氟醚实验组,各10份。分别观测低浓度和高浓度异氟醚及七氟醚对精子活力的影响,并观察异氟醚和七氟醚停用1h后精子运动功能的变化。精子运动功能采用计算机辅助精子分析系统分析。结果:1.4%～5.6%异氟醚作用于精子0.5～4h后,精子活动率及活力显著升高。停用异氟醚后精子活动率及活力恢复至对照组水平。5.6%～42%异氟醚不引起精子活动率和活力的变化。42%～84%异氟醚可引起精子活动率和活力呈剂量依赖性下降。1.3%～84.5%七氟醚对精子活力无影响。结论:临床浓度异氟醚在体外作用于人精子,可以显著升高精子活动率和活力,并且作用可逆,随着浓度超过42%以上,精子活力和活动率逐渐下降。七氟醚对精子活力没有显著影响。

Effects of Inhaled Anesthetics on Human Sperm Motility in vitro

OBJECTIVE: To study the effects of inhaled anesthetics on human sperm motility in vitro. METHODS: Sperm samples were obtained from 20 healthy men by masturbation and prepared by the swim-up technique. The effects of isoflurane and sevoflurane at the clinical concentration (1.4%-5.6%) and high concentration (5.6%-84%) on human sperm motility in vitro were observed at 25 degrees C by the computer-assisted sperm analysis (CASA). RESULTS: The sperm vitality and motility were significantly increased on 0.5-4 h exposure to isoflurane at the clinical concentration and decreased gradually at high concentration (42%-84%). The effect of isoflurane on human sperm motility and vitality at the clinical concentration was reversible when the anesthetic withdrawn. Sevoflurane had no effects on human sperm motility and vitality at either the clinical or high concentration. CONCLUSION: Isoflurane has a reversible increasing effect at the clinical concentration and a significant decreasing effect at the high concentration on the motility and vitality of human sperm, while sevoflurane does not affect human sperm motility and vitality at either concentration.