江明喜研究员则终于如愿找到一丛蛇足石杉。每人的塑料袋中，装着心仪的标本。

Researcher Jiang Mingxi finally found the cluster of Huperizia serrata he was looking for. Every one had their plastic bags filled with their favorite specimens.

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方法与结果：按照常规的方法提取出石杉总生物碱，用HPLC对总碱直接进行分析。

Methods and Results: Total alkaloids of Huperziaceae were extracted by routine method and used directly for the HPLC analysis.

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结论：石杉碱甲能有效改善脑器质性疾病患者记忆和认知能力，具有较好的疗效。

CONCLUSION: Huperzine a can effectively improve memory and cognitive function in patients with organic brain diseases and has good curative effects.

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