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Conclusion : phy intranasal administraton obviously improves learning and memory function in mice .

结论：毒扁豆碱鼻腔给药对小鼠学习记忆功能有明显的促进作用。

Significance of preoperative digital subtraction dacryocystogra phy for nasolacrimal stent .

鼻泪管支架植入术前数字减影泪道造影的意义。

Methods : the influence of phy intranasal administration on learning and memory function in mice was investigated by water maze test and passive avoidance responses test ( step down test and step through test ) , and the acetylcholin esterase ( ache ) activity of the plasma and brain was measured after phy intranasal administration .

方法：采用水迷宫和被动回避性条件反应（跳台法，避暗法）试验观察毒扁豆碱鼻腔给药对小鼠学习记忆功能的影响，并测定鼻腔给药后血浆和脑组织内乙酰胆碱酯酶（ache）的活力。