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Showing 1 to 14 of 14 for “"progestogen"”.
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Modulation of the progesterone receptor by progestogens, antiretroviral drugs and the glucocorticoid receptor
… However, the relative activity of some of the progestogens used in HCs and HRT has not been determined via their target steroid receptor (SR), the progesterone receptors and its isoforms (PR-A and PR-B). This thesis involves an in vitro investigation of some of the factors that affect PR …
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Melengestrol acetate and norgestomet for the induction of synchronized estrus in seasonally anovular ewes
Two commercially available progestogen products for cattle, melengestrol acetate (MGA) and norgestomet (SMB) , were evaluated for their ability to induce synchronized estrus in anovulatory ewes. Seasonally anestrous ewes (n=232; determined by blood serum progesterone concentration) of mixed …
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A randomised controlled trial studying the effects of the copper intrauterine device and the injectable progestogen contraceptive on depression and sexual functioning of women in the Eastern Cape
A lack of contraception use and contraceptive method discontinuation are common causes of unintended pregnancy in the Eastern Cape. The most common reason for method discontinuation among childbearing women is the unacceptable side effects of their contraceptive choices. Both depression and sexual …
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Synergism between immune activators and progestogens: differential effects on gene expression and HIV-1 replication and the role of the glucocorticoid receptor
… infection in women. Incidentally, regions were progestogen-only hormonal contraceptives use and genital tract infections are prevalent also have with high rates of HIV-1 prevalence in women. This raises the question whether medroxyprogesterone acetate (MPA), norethisterone enanthate (NET) or …
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Depot medroxyprogesterone acetate versus norethisterone oenanthate for long-acting progestogenic contraception : a systematic review
[Background] Two injectable progestogen-only contraceptives (IPCs) depot medroxyprogesterone acetate (DMPA) and norethisterone oenanthate (NET-EN) continue to be extensively used in some countries, forming a large proportion of the health system's expenditure on contraception. Both these highly …
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The provision and use of contraception amongst antenatal and postpartum women in a rural area of the Eastern Cape
… public sector maternity services injectible progestogen-only contraceptives (POCs) have typically been administered after delivery to women choosing to use these methods. A series of studies arose in response to the draft South African National Contraceptive Guidelines (1999), which …
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Differential effects of progestogens on HIV-1 replication and host gene expression in primary PBMCs and cervical tissue explants
The synthetic progestogens, medroxyprogesterone acetate (MPA) and norethisterone enanthate (NET-EN),are widely used in developing countries as injectable contraceptives, where disease burden is high.Levonorgestrel (LNG) is a common progestogen used in oral contraceptives and intrauterine devices. …
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Awareness and attitudes of adolescents towards the use of intrauterine device in Makhado Local Municipality, South Africa
Intrauterine Devices and Sub-dermal Progestogen implants are long-acting reversible contraceptive methods that are highly effective and have the greatest potential to reduce unintended pregnancies. According to District Health Barometer, uptake of the intrauterine device is low across the country. …
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The effect of reproductive hormones on muscle function in young and middle-aged females.
… women (n=9). The oestrogen only and oestrogen-progestogen phases were compared with baseline measurements. A positive change in strength was observed, although this did not reach significance (p<O.1). The increase in strength (15.2?20.6%) between baseline and the oestrogen-progestogen phase of …
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Relationships among progesterone, estradiol-17β, 13, 14-dihydro-15-keto-prostaglandin F₂α and prostaglandin F₂α in intact ewes around the time of luteolysis
… in blood plasma of ovariectomized ewes. Neither progestogen treatment interfered with the RIA. Experiment 2 was conducted to answer the question: Do MPA-containing pessaries delay luteolysis in intact ewes? Ewes were treated with MPA containing (n=10) or blank pessaries (controls; n=8) from d 7 …
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Effect of the timing of OvuGel administration on reproductive performance in gilts sycnhronized for estrus
… Animal Health, Summit, NJ) is an orally active progestogen that is used to synchronize estrus in gilts and OvuGel® (JBS United, Sheridan, IN) is a product that has been shown to synchronize ovulation in sows, allowing for a single fixed-time insemination to be used. A review of the literature …
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Reproductive Delay In The Female Cape Ground Squirrel (xerus Inauris)
The Cape ground squirrel, Xerus inauris, is a highly social cooperative breeder that forms groups containing multiple breeding females. While the distribution of reproduction among group members is fairly even (i.e. exhibits low reproductive skew), previous studies of Cape ground squirrels suggest …
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Hormones and the Female Voice: An Exploration of the Female Hormonal Cycle from Puberty to Menopause and How it Affects the Vocal Apparatus
… overview of the steroid hormones: estrogen, progestogen, and androgen. These three hormones are responsible for the development and maturation of primary and secondary sexual characteristics. It is only through studying the specific functions of each of the steroid hormones that it is made …
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Sex-specific reproductive strategies in redfronted lemurs (Eulemur fulvus rufus, Primates, Lemuridae)
… and 2002. The analyses of fecal estrogen and progestogen excretion in wild and captive females revealed that monitoring ovarian function is principally possible in redfronted lemurs, as demonstrated by the analysis of samples from captive females. Characterization of ovarian cycles in wild …