Norgestomet is a steroidal progestin of the 19-norprogesterone group used in veterinary medicine to control estrus and ovulation in cattle. In addition to the progesterone receptor, norgestomet possesses a weak (micromolar) affinity for the glucocorticoid
Pregnant mare serum gonadotropin (PMSG) 是用于促进动物卵泡发育及排卵的促性腺激素。该激素可通过激活体内的血液激素、促性腺激素以及前脑垂体和下丘脑中的细胞质雌二醇受体,调节相关生理过程。在畜牧业中,Pregnant mare serum gonadotropin 用以增加繁殖效率;此外,它也被应用于研究发情周期的调节。
Clomifene is a selective estrogen receptor modulator (SERM), it has both estrogenic and anti-estrogenic activities. This agent causes the release of the pituitary gonadotropins follicle-stimulating hormone (FSH) and luteinizing hormone (LH), leading to ov
Retroprogesterone, a progestin, may be used for menstrual irregularities in adolescence, for the maintenance of threatened pregnancy, and possibly as an ovulation stimulant.
Acyline is a novel GnRH antagonist found in animal studies to be a potent suppressor of circulating gonadotropin and testosterone (T) levels. Acyline inhibits basal and GnRH-stimulated serum testosterone concentrations in male dogs. Acyline prevented ovulation, but did not affect ovarian follicular development or gestational corpora lutea in the domestic cat. A single dose of the potent gonadotropin-releasing hormone antagonist acyline suppresses gonadotropins and testosterone for 2 weeks in healthy young men.
Dicetrorelix pamoate is a synthetic decapeptide with gonadotropin-releasing hormone (GnRH) antagonistic activity. GnRH induces the production and release of luteinizing hormone (LH) and follicle stimulating hormone (FSH) from the gonadotrophic cells of the anterior pituitary. Due to a positive estradiol (E2) feedback at midcycle, GnRH liberation is enhanced resulting in an LH-surge. This LH-surge induces the ovulation of the dominant follicle, resumption of oocyte meiosis and subsequently luteinization as indicated by rising progesterone levels. Cetrorelix competes with natural GnRH for binding to membrane receptors on pituitary cells and thus controls the release of LH and FSH in a dose-dependent manner. Cetrorelix binds to the gonadotropin releasing hormone receptor and acts as a potent inhibitor of gonadotropin secretion. It competes with natural GnRH for binding to membrane receptors on pituitary cells and thus controls the release of LH and FSH in a dose-dependent manner......