Progesterone production

Qu, J.-H., Hong, X., and Chen, J.-F. et al. (2008). Fenvalerate inhibits progesterone production through cAMP-dependent signal pathway. Toxicology Letters 176, 31-39. 

Gocze, P. M., and D. A. Freeman. Cytotoxic effects of cigarette smoke alkaloids inhibit the progesterone production and cell growth of cultured MA-10 Leydig tumor cells. Eur J Obstet Gynecol Reprod Biol 2000, 93(1) 77-83. 

Lucky AW, Schreiber JR, Hillier SG, Schulman JD, 4 Ross GT (1977) Progesterone production by cultured preantral rat granulosa cells stimulation by androgens. Endocrinology, 100 128-133. 

The ability to accurately determine the onset of oestrus in cattle is of great value in enabling artificial insemination to be carried out efficiently and therefore cost-effectively. One way to monitor the oestrus cycle is by measuring variation in progesterone production and in dairy cows this can be achieved by measuring progesterone levels in their milk. Oestrus onset is indicated by a rapid fall in the concentration of milk progesterone to below 2-5ng/mL [3]. 

Studies with ovarian cells have also shown that extracellular calcium is required to give maximum steroidogenesis [29]. The calcium channel blockers, verapamil or diltiazem also suppressed LH-stimulated progesterone production. The calcium ionophore A23187 significantly enhanced the stimulatory effects of LH. Recently it was shown that FSH, prostaglandin E2 and F2 have distinct effects on steady state calcium exchange in ovarian cells [30]. 

Chorionic gonadotrophin (human chorionic gonadotrophin HCG) is secreted by the placenta and is obtained from the urine of pregnant women. Its predominant action is that of luteinising hormone (LH) (interstitial cell stimulating hormone) which induces progesterone production by the corpus luteum and, in the male, gonadal testosterone... 

Primary and Secondary Amenorrhea and Functional Uterine Bleeding Caused by Insufficient Progesterone Production or Estrogen-Progesterone Imbalance. 

Properties Rods or needlelike crystals. Soluble in water and glycols. Unstable in aqueous solution, stable in dry form. It enhances estrone and progesterone production. Units One international unit equals the activity of 0.1 mg of a standard preparation. 

Zl. Zander, J., Relationship between progesterone production in the human placenta and the fetus. Ciba Found. Study Group 9, 32-39 (1961). 

Ovulation, estradiol and progesterone production, testosterone production Mainly growth stimulation Thyroid hormone production Glucocorticoid production Milk production... 

Addition of mixed gangliosides abolished the stimulatory effect of cholera toxin on progesterone production in isolated rat ovarian cells, but had no influence on the effect of gonadotropin. It was concluded that gangliosides were not involved in hormone-receptor interactions. 

Functional cysts are asymptomatic in the majority of cases. Progesterone production may persist in corpus luteum cysts, resulting in delayed menstruation or bleeding anomahes. Large physiologic cysts may cause abdominal pressure or low back pain. Acute abdomen is caused by comphcations such as rupture, hemorrhage, or torsion. 

The methanolic extract of adlay decreased progesterone production in rat granulose cells... 

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