中文摘要：

通过对褪黑素合成限速酶-褪黑素-松果腺与中医五脏调控理论关系的分析,结合前期研究成果认为：松果腺是五脏调控与五季关系的中介;褪黑素可能是中医学五脏与五时相通应的主要调节点;芳基烷化胺N-乙酰转移酶（AANAT）作为褪黑素合成的主要限速酶,其活性的季节性变化决定了褪黑素合成的速率和节奏,对褪黑素的浓度起着关键性作用。最后提出褪黑素合成限速酶-褪黑素-松果腺是中医五脏调控理论研究最合适的切入点。

英文摘要：

Combined the achievemetns of prophase researches, it was thought that, based on the analysis on the relationship between aryl-alkylated amine N-acetyltransferase （AANAT）-melatonin-pineal gland and TCM regulation theory of five zang-viscera, pineal gland was a medium in the relation between five zang-viscera regulation and five seasons, and melatonin might be a set point in the correspondence between five zang-viscera and five seasons. AANAT, as a main rate-limiting enzyme of melatonin synthesis, had seasonal changes in its activity, which determined the rate and rhythm of melatonin synthesis and played a very important role in melatonin concentration. AANAT-melatonin-pineal gland was thought as the breakthrough point in the research of TCM regulation theory of five zang-viscera.