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Equine chorionic gonadotropin (acronym given as eCG but not to be confused with ECG) is a gonadotropic hormone produced in the chorion of pregnant mares. Previously referred to as pregnant mare's serum gonadotropin ( PMSG ), the hormone is commonly used in concert with progestogen to induce ovulation in livestock prior to artificial insemination .
The application of utilizing eFSH to increase the efficiency of equine embryo transfer was tested at the University of Saskatchewan.Embryos from 12 donor mares at 8 days of ovulation were recovered, scored, then transferred to 37 recipients mares who were tested for pregnancy after 7-10 days. 5 pregnancies resulted from the 15 embryos were recovered from the eFSA treatment group and 4 ...
Equine estrogens are found in the human medications conjugated estrogens (Premarin) and esterified estrogens (Estratab, Menest). [1] [2] [3.
They produce high concentrations of equine chorionic gonadotropin (eCG), also called pregnant mare's serum gonadotropin, in the bloodstream of pregnant mares. eCG is actually an equine luteinizing hormone. [2] Endometrial cups behave somewhat like cells from metastatic tumors, in that they leave the placenta and migrate into the uterus. Their ...
Gonadotropins are glycoprotein hormones secreted by gonadotropic cells of the anterior pituitary of vertebrates. [1] [2] [3] This family includes the mammalian hormones follicle-stimulating hormone (FSH) and luteinizing hormone (LH), the placental/chorionic gonadotropins, human chorionic gonadotropin (hCG) and equine chorionic gonadotropin (eCG), [3] as well as at least two forms of fish ...
Ovulation occurs 24–48 hours after the luteinizing hormone peak, which occurs around the fourth day of estrus; therefore, this is the best time to begin breeding. Proestrus bleeding in dogs is common and is believed to be caused by diapedesis of red blood cells from the blood vessels due to the increase of the estradiol-17β hormone. [20]
Results of the Women's Health Initiative (WHI) menopausal hormone therapy randomized controlled trials; Clinical outcome Hypothesized effect on risk Estrogen and progestogen (CEs Tooltip conjugated estrogens 0.625 mg/day p.o. + MPA Tooltip medroxyprogesterone acetate 2.5 mg/day p.o.) (n = 16,608, with uterus, 5.2–5.6 years follow up) Estrogen ...
Similar to the Hogben test, a small amount of the women's urine would be injected into the dorsal lymph sac of the male frog. Pregnant women contain the hormone human chorionic gonadotrophin in their urine. Therefore the presence of this hormone in the urine injected into the male frog, would cause the frog to release sperm within three hours. [21]