Placental Synthesis of Steroid Hormones in Maternal-Fetal Endocrinology

17 beta-Estradiol (E2) and progesterone (P) concentrations in blood and in the myometrium of human pregnancy at term (n=33) and in a few samples (n=5) around midterm of pregnancy were determined. E2 c...

To describe normal relationships between the various plasma unconjugated estrogens and progesterone during the second half of human pregnancy, the plasma concentrations of progesterone, 17-hydroxyprog...

Periodic vaginal bleeding occurs in humans (who are henceforth called “women,” a word describing culture as well as biology), old-world apes, and few other mammals. By current concepts, women’s menstr...