Objective:To observe the clinical effect of Yizhidan (YZD) in treating childhood hyperkinetic syndrome (CHS) and its mechanism.

目的：观察益智丹治疗儿童多动症（CHS）的临床疗效及其作用机制。

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The dysmnesia model animal was used to observe the effect of YZD on learning memory function and cerebral monoamine neurotransmitter content.

实验研究制作记忆障碍模型，观察益智丹对小鼠学习记忆功能和对小鼠脑组织单胺类神经递质含量的影响。

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Conclusion: YZD is an effective drug in treating CHS, its mechanism might be probably related to the improvement of the memory and the enhancement of DA receptor in cerebral tissue.

结论：益智丹是治疗CHS的有效药物，其作用机制可能与改善记忆、提高脑组织DA含量有关。

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