Steroids in Human Ovarian Vein Blood

Abstract
Progesterone concentration in the ovarian vein blood during the menstrual cycle has been studied in 4 patients. Values of 110, 48 and 29 μg/100 ml of ovarian vein blood were obtained 5, 10 and 11 days postovulatory, respectively. In one anovulatory cycle no measurable progesterone could be detected. In addition to progesterone, 17α-hydroxyprogesterone,1 20α-hydroxy-4-pregnene-3-one and androstenedione have been identified in the same samples.