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Progestagens: Progesterone, Dydrogesterone, Progestin, 17-Hydroxyprogesterone, Progestagen, Drospirenone, Levonorgestrel, Tibolone, Desogestrel (Inglés) Tapa blanda – 15 sep 2010


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Tapa blanda, 15 sep 2010
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 104. Not illustrated. Chapters: Progesterone, Dydrogesterone, Progestin, 17-Hydroxyprogesterone, Progestagen, Drospirenone, Levonorgestrel, Tibolone, Desogestrel, Megestrol, Medroxyprogesterone, Ethisterone, Endometrin, Norethisterone, Lynestrenol, Prometrium, Etonogestrel, Pregnane, Norgestimate, Norethynodrel, Gestodene, Algestone, Ethynodiol Diacetate, Norelgestromin, Gestonorone, Norgestrienone, Activella. Excerpt: Progesterone also known as P4 (pregn-4-ene-3,20-dione) is a C-21 steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis of humans and other species. Progesterone belongs to a class of hormones called progestogens, and is the major naturally occurring human progestogen. Progesterone is commonly manufactured from the yam family, Dioscorea. Dioscorea produces large amounts of a steroid called diosgenin, which can be converted into progesterone in the laboratory. Progesterone was independently discovered by four research groups. Willard Myron Allen co-discovered progesterone with his anatomy professor George Washington Corner at the University of Rochester Medical School in 1933. Allen first determined its melting point, molecular weight, and partial molecular structure. He also gave it the name Progesterone derived from Progestational Steroidal ketone. Like other steroids, progesterone consists of four interconnected cyclic hydrocarbons. Progesterone contains ketone and oxygenated functional groups, as well as two methyl branches. Like all steroid hormones, it is hydrophobic. Progesterone is produced in the ovaries (to be specific, after ovulation in the corpus luteum), the adrenal glands (near the kidney), and, during pregnancy, in the placenta. Progesterone is also stored in adipose (fat) tissue. In humans, increasing amounts of progesterone are produced during pregn...

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