RT Book, Section A1 Levin, Ellis R. A1 Hammes, Stephen R. A2 Brunton, Laurence L. A2 Chabner, Bruce A. A2 Knollmann, Björn C. SR Print(0) ID 1127869442 T1 Estrogens and Progestins T2 Goodman & Gilman's: The Pharmacological Basis of Therapeutics, 12e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071624428 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1127869442 RD 2023/10/01 AB Estrogens and progestins are endogenous hormones that produce numerous physiological actions. In women, these include developmental effects, neuroendocrine actions involved in the control of ovulation, the cyclical preparation of the reproductive tract for fertilization and implantation, and major actions on mineral, carbohydrate, protein, and lipid metabolism. Estrogens also have important actions in males, including effects on bone, spermatogenesis, and behavior. The biosynthesis, biotransformation, and disposition of estrogens and progestins are well established. Two well-characterized receptors are present for each hormone, and there is evidence that the receptors mediate biological actions in both the unliganded and steroid hormone-liganded states.