Objective To study the effects of total-sterone extracts of Rhaponticum uniflorum on learning and memory and to probe into the therapeutic mec hanism preliminarily.

• 目的研究漏芦甾酮总提取物对小鼠学习记忆功能的影响,并初步探讨其作用机制。方法采用跳台法、避暗法及水迷路法观察漏芦甾酮总提取物对小鼠学习记忆功能的影响;