黑色紧张素是松果腺分泌的一种激素。已知松果腺的分泌物对哺乳类的生殖系统具有抑制作用。大量的资料还指出,黑色紧张素可能参与调节下丘脑-垂体-性腺轴的功能。为阐明黑色紧张素与人月经周期调节的可能关系,本工作观察了在人月经周期中黑色紧张素的变化。5例30-41岁的健康妇女,月经周期的平均间隔为26天,每例都随访观察一个月。依 Arendt 等的方法测定血清黑色紧张素,每隔2-3天取一次 Black is a hormone secreted by the pineal gland. Pineal gland secretions are known to have an inhibitory effect on the mammalian reproductive system. A lot of information also pointed out that black color may be involved in regulating the hypothalamus - pituitary - gonadal axis function. In order to elucidate the possible relationship between black-level hormones and the regulation of the menstrual cycle, this work examines the changes of black-level hormones during the menstrual cycle. Five healthy women aged 30-41 years, the average interval of menstrual cycle was 26 days, each case were followed up for a month. Serum levels of black hormone were measured by the method of Arendt et al., Once every 2-3 days