The biosynthesis of estrone and progesterone in the pregnant mare.

The conversion of testosterone-3-C14 to C14-estradiol-17beta by human ovarian tissue.

There is a considerable body of biological data linking testosterone and other 19-carbon steroids with the estrogens. Both ovaries and testes may, under certain circumstances, produce androgens and estrogens (14). The administration of testosterone and other androgens to human subjects leads to an increased urinary excretion of estrogenic material (5-lo), which has been identified as estrone, e...

THE CONVERSION OF TESTOSTERONE-3-Cl4 TO C14-ESTRADIOL-17P BY HUMAN OVARIAN TISSUE* BY BILLY BAGGETT

There is a considerable body of biological data linking testosterone and other 19-carbon steroids with the estrogens. Both ovaries and testes may, under certain circumstances, produce androgens and estrogens (14). The administration of testosterone and other androgens to human subjects leads to an increased urinary excretion of estrogenic material (5-lo), which has been identified as estrone, e...

response of lactating karakul ewes to two levels of exogenous estradiol 17.B along with progesterone and pregnant mare serum for induction of fertile estrus at early postpartum

Reproductive performance of female goats given progestagen associated with PMSG and/or HMG in deep anestrus.

During deep anestrus and after a 21-day fluorogestone acetate (FGA) treatment, 200 pluriparous lactating Alpine goats were given randomly one of four treatments: (A) 500 IU of pregnant mare serum gonadotropin (PMSG) 48 h before sponge removal; (B) 500 IU of PMSG 48 h before sponge removal and an ampoule of human menopausal gonadotropin (HMG) at sponge removal; (C) two ampoules of HMG at sponge ...

Estrogens, Progestins, and Specific Estrogen Receptor Modulators (SERMs)

Biologically important natural estrogens and progestins include estradiol, estrone, estriol, and progesterone. Estradiol-17 is the most potent estrogen that is found naturally in women. Estrone is one-tenth as biologically active as estradiol, and estriol is the weakest of the three. Estriol is synthesized by the placenta and is excreted at high levels in the urine of pregnant women. Progestero...