结论：膜片钳技术使探讨烟碱受体拮抗药的作用位点成为可能。
CONCLUSION: the patch clamp technique makes it possible to observe the action sites of nicotine receptor antagonists.
目的：观察5-羟色胺（5-HT3）受体拮抗药阿扎司琼静脉预先注射对鞘内吗啡所致的瘙痒发生防治效果。
Objective: To evaluate the effects of prophylactic intravenous administration of the 5-hydroxytryptamine subtype 3(5-HT3) receptors antagonist azasetron on intrathecal morphine-induced pruritus.
目的：观察5-羟色胺（5-HT3）受体拮抗药阿扎司琼静脉预先注射对鞘内吗啡所致的瘙痒发生防治效果。
Objective: To evaluate the effects of prophylactic intravenous administration of the 5-hydroxytryptamine subtype 3(5-HT3) receptors antagonist azasetron on intrathecal morphine-induced pruritus.
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