Oshima K, Hayashi M, Matsubayashi K
J Med Primatol. 1977;6(2):99-107. doi: 10.1159/000459728.
Progesterone levels were determined in the peripheral blood of the Japanese monkey during the menstrual cycle, breeding season, nonbreeding season, and gestation. Progesterone levels averaged less than 0.3 ng/ml in the earlier follicular phase, rose to maximum values of 3.8 ng/ml approximately eight days before menses, and declined to less than 1.0 ng/ml before menstruation. Progesterone levels during the nonbreeding season were comparable with those during the early follicular phase. In pregnant animals circulating progesterone either continued to rise around day 20, or fell as in the infertile cycle, then rose again. Progesterone levels declined between days 35 and 60 and were variable until about day 130 of gestation.
测定了日本猕猴在月经周期、繁殖季节、非繁殖季节及妊娠期外周血中的孕酮水平。在卵泡早期，孕酮水平平均低于0.3 ng/ml，在月经前约8天升至最高值3.8 ng/ml，并在月经前降至低于1.0 ng/ml。非繁殖季节的孕酮水平与卵泡早期相当。在怀孕动物中，循环孕酮在第20天左右要么持续上升，要么像在不育周期中一样下降，然后再次上升。孕酮水平在第35天至60天之间下降，在妊娠约130天之前一直变化不定。
