已知17-羟类固醇(17-OHCS)的分泌有很明显的昼夜节律,正常参考值的高低相差太大。究其原因是与昼夜分泌节律有关,以及个体差异有关。但是否与年周期有关,未见资料报告。为此,我们对健康人群进行年周期分泌节律的正常参考值调查。现报告如下: It is known that the secretion of 17-hydroxysteroid (17-OHCS) has a significant circadian rhythm, the difference between the normal reference value is too large. The reason is related to circadian rhythm and individual differences. However, whether it is related to the annual cycle or not, no data is reported. To this end, we conduct a normal reference survey of annual cycle secretion rhythms in healthy people. The report is as follows: