目的:研究缬草素的抗焦虑作用。方法:雄性SD大鼠60只,随机分为5组:缬草素高、中、低剂量组(剂量分别为20,10,5 mg·kg-1)、阳性药地西泮(diazepam,DZP)组和空白组,ig 10 d后采用国际通用的高架十字迷宫(elevated plusmaze,EPM)焦虑动物模型,从行为学角度观察了缬草素的抗焦虑作用。结果:EPM行为学观察表明:与空白组相比,DZP和缬草素中剂量组可明显提高大鼠在开臂时间百分率(14.07%,38.09%,37.42%,P<0.01)和次数百分率(16.98%,30.10%,37.19%,P<0.05或P<0.01)。结论:缬草素有明显的抗焦虑作用。Objective：To study anxiolytic activity of valeportriate isolated from the root of Valeriana jatamansi.Method：Sixty Sprague-Dawley rats were randomly divided into 5 groups for daily intragastric administration of drugs：valeportriate high-dose（20 mg·kg^-1）,valeportriate medium-dose（10 mg·kg^-1）,valeportriate low-dose（5 mg·kg^-1）,the positive drug group and normal control group,treated ig for 10 days.Adopting the international common-used anxiety animal model with the elevated plus-maze test（EPM）,we observed the effect of anti-anxiety of valeportiate from the angle of behavior.Result：The results of EPM showed that DZP and valeportriate medium-dose group obviously increased the percentages of open arm time（14.07%,38.09%,37.42%,P 〈 0.01） and entry（16.98%,30.10%,37.19%,P 〈 0.05 or P 〈 0.01） comparing with control group.Conclusion：Valeportriate has obvious anti-anxiety activity
