褪黑素（Ｍａｌｅｔｏｎｉｎ，ＭＴ）是松果体内分泌的一种吲哚类激素，具有广泛的生理作用，它不仅与个体发育、生殖功能、脑功能相关，而且参与睡眠、镇静、镇痛和免疫调节等活动，最新研究发现某些肿瘤的发生发展也与褪黑素昼夜变化有关。对其含量的测定方法国内未见报... Melatonin (MT) is a steroid hormone secreted by the pineal gland and has a wide range of physiological functions. It not only relates to individual development, reproductive function, brain function, but also participates in sleep, sedation, analgesia and immunity. Regulatory and other activities, the latest study found that the development of certain tumors is also related to the diurnal changes in melatonin. The method for the determination of its content has not been reported in the country...