摘要
观察吗啡受体拮抗剂纳络酮(Naloxone)对氯胺酮麻醉状态下猫SEP的影响。采用刺激腕部正中神经记录对侧相应大脑皮层体感区诱发电位,观察到两组用药前CCT_p,CCT_(MN)及AMP分别为:生理盐水组6.3±1.1,10.9±1.8ms,15.2±6.0μV。纳络酮组6.5±0.6,10.5±0.6ms,19.2±6.4μV.用药后(纳络酮5mg/kg iv)AMP明显上升达用药前的2倍以上,而CCT_P或CCT_(MN)改变不明显。生理盐水组SEP也大致上有所增加,但两组间差异无显著性。说明大剂量纳络酮主要影响中枢神经元细胞的电活动而对神经纤维传导功能影响较小,从而表现出纳络酮对神经系统作用的选择性。
Effects of opiate receptor blocker-naloxone ( 5mg/kg) on somatosensory evoked potentials ( SEP ) in 6 cats was studied. Other 6 cats were treated with normal saline as control. Results showed that the amplitudes of SEP were significantly elevated after 0.5h of aaloxone infusion. The changes of SEP-CCTp or CCTmn were no significant. It was suggested that large dosage of naloxone can favorably improve the electrical activites of neuron in the centre nerve system.
出处
《中国药理学通报》
CAS
CSCD
北大核心
1991年第5期363-365,共3页
Chinese Pharmacological Bulletin
基金
浙江省自然科学基金赞助课题
关键词
纳络酮
体感诱发电位
猫
Naloxone
Somatosensory evoked potentials
Cats
