Results 301 to 310 of about 68,845 (338)
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Classification and pharmacology of progestins
Maturitas, 2003Besides the natural progestin, progesterone, there are different classes of progestins, such as retroprogesterone (i.e. dydrogesterone), progesterone derivatives (i.e. medrogestone) 17alpha-hydroxyprogesterone derivatives (i.e. chlormadinone acetate, cyproterone acetate, medroxyprogesterone acetate, megestrol acetate), 19-norprogesterone derivatives (i.
Johannes C. Huber +6 more
openaire +4 more sources
Journal of the American Medical Association (JAMA), 2003
CONTEXT In the Women's Health Initiative trial of estrogen-plus-progestin therapy, women assigned to active treatment had fewer fractures. OBJECTIVE To test the hypothesis that the relative risk reduction of estrogen plus progestin on fractures differs
J. Cauley +13 more
semanticscholar +1 more source
CONTEXT In the Women's Health Initiative trial of estrogen-plus-progestin therapy, women assigned to active treatment had fewer fractures. OBJECTIVE To test the hypothesis that the relative risk reduction of estrogen plus progestin on fractures differs
J. Cauley +13 more
semanticscholar +1 more source
Journal of Midwifery & Women's Health, 2002
ABSTRACTProgestin contraceptives offer unique advantages, allowing the clinician to tailor optimum regimens for selected women. This article reviews the various progestational drugs, regimens, and delivery systems available presently and in development, with reference to the clinical benefits and limitations of each method.
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ABSTRACTProgestin contraceptives offer unique advantages, allowing the clinician to tailor optimum regimens for selected women. This article reviews the various progestational drugs, regimens, and delivery systems available presently and in development, with reference to the clinical benefits and limitations of each method.
openaire +2 more sources
Journal of the American Medical Association (JAMA), 2003
CONTEXT The Women's Health Initiative (WHI) trial of estrogen plus progestin was stopped early because of adverse effects, including an increased risk of stroke in the estrogen plus progestin group.
S. Wassertheil-Smoller +2 more
semanticscholar +1 more source
CONTEXT The Women's Health Initiative (WHI) trial of estrogen plus progestin was stopped early because of adverse effects, including an increased risk of stroke in the estrogen plus progestin group.
S. Wassertheil-Smoller +2 more
semanticscholar +1 more source
Steroids, 2000
Progestin implants for contraception are highly effective, safe, and the most convenient choice for many women. Progestin implants currently on the market, preparing for launch, or under investigation are reviewed here. Their basic galenic and pharmacokinetic features, as well as their contraceptive effectiveness, are described.
openaire +2 more sources
Progestin implants for contraception are highly effective, safe, and the most convenient choice for many women. Progestin implants currently on the market, preparing for launch, or under investigation are reviewed here. Their basic galenic and pharmacokinetic features, as well as their contraceptive effectiveness, are described.
openaire +2 more sources
Nomenclature of the gonane progestins
Contraception, 1999The use of gonane nomenclature can be traced back to the early 1960s when the first compound submitted for trial the carbon-18 homologue of the anabolic agent Nilevar was named bisnortestosterone. However the confusion about how this compound was named led scientists to introduce the gonane system for naming bisnortestosterones and structurally ...
Frank Z. Stanczyk, Richard A. Edgren
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Pharmacological profile of progestins
Maturitas, 2004The synthetic progestins used so far for contraception and menopausal hormone therapy are derived either from testosterone (19-nortestosterone derivatives) or from progesterone (17-OH progesterone derivatives and 19-norprogesterone derivatives). Among the 19-nortestosterone derivatives, the estrane group include norethisterone (NET) and its metabolites,
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Estrogens, progestins, and headache
Neurology, 1991PIP: Migraine headaches appear to be linked to the menstrual cycle and the use of oral contraceptives (OCs). Migraine attacks occur during menses in 60% of women and appear to be related to the withdrawal of estrogen. The fluctuations in estrogen levels associated with migraine headaches produce biochemical changes in prostaglandin production ...
Stephen D. Silberstein +1 more
openaire +3 more sources
The Journal of Steroid Biochemistry and Molecular Biology, 1998
In the last years there has been an extraordinary development in the synthesis of new progestins. These compounds are classified, in agreement with their structure, in various groups which include progesterone, retroprogesterones, 17alpha-hydroxyprogesterones, 19-norprogesterones, 17alpha-hydroxyprogesterone derivatives, androstane and estrane ...
J. Botella +4 more
openaire +3 more sources
In the last years there has been an extraordinary development in the synthesis of new progestins. These compounds are classified, in agreement with their structure, in various groups which include progesterone, retroprogesterones, 17alpha-hydroxyprogesterones, 19-norprogesterones, 17alpha-hydroxyprogesterone derivatives, androstane and estrane ...
J. Botella +4 more
openaire +3 more sources
Progesterone-Progestin Receptors
1974A correlation between binding to the progestin-specific uterine cytosol receptor and with well-defined facets of progesterone action was established. Structurally similar derivatives of norprogesterone and nortestosterone were compared. Binding was measured in vitro by determining their competitive effect on the progestin-tagged uterine cytosol ...
Philibert D +2 more
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