Murono E P, Nankin H R, Lin T, Osterman J
Acta Endocrinol (Copenh). 1982 Apr;99(4):619-23. doi: 10.1530/acta.0.0990619.
Basal circulating levels of progesterone, 17 alpha-OH-progesterone, dehydroepiandrosterone, androstenedione, testosterone and oestradiol-17 beta were measured in 'young' (median age 34 years) and 'old' (median age 73 years) normal males between 08.30 and 17.00 h. Diurnal rhythms for 17 alpha-OH-progesterone, dehydroepiandrosterone, androstenedione and testosterone were observed in both young and old men. No rhythms were discernible for progesterone or oestradiol-17 beta in both age groups.
在上午8点30分至下午5点之间，对“年轻”（中位年龄34岁）和“年老”（中位年龄73岁）的正常男性测量了孕酮、17α-羟基孕酮、脱氢表雄酮、雄烯二酮、睾酮和雌二醇-17β的基础循环水平。在年轻男性和老年男性中均观察到17α-羟基孕酮、脱氢表雄酮、雄烯二酮和睾酮的昼夜节律。在两个年龄组中，孕酮或雌二醇-17β均未发现节律。
