Urinary levels of estrogens and pregnanediol and plasma levels of progesterone during the menstrual cycle of the chimpanzee; relationship to the sexual swelling.

摘要: Urinary estrone, estradiol–17β, estriol and pregnanediol were identified measured during 3 normal menstrual cycles in chimpanzees. During the first half of cycle, animals excreted 1–10 βg/day 0.5–5.0 0.1–0.8 μg/day estriol, < 20–700 Hg/day pregnanediol. In second corresponding values 1–20 1–9 estradiol– 17β, 1.0–2.5 <20–1860 μg/ day The for estrone estradiol–17β are similar to those found human but levels strikingly lower. Levels urinary significantly lower than human, both absolute terms relation plasma progesterone levels. Plasma (26 subjects) human. Variations cycle corresponded There was a marked mid—cy...