The synthetic progestins used for contraception so far are structurally related either to testosterone (estranes and gonanes) or to progesterone (pregnanes and 19-norpregnanes). Several new progestins have been designed to minimize side-eff…
Following the publication of the Women's Health Initiative study, the controversy was raised regarding the role of progestins in hormonal replacement therapy (HRT). Some of the most prescribed molecules, with partial androgenic or glucocort…
BackgroundUlipristal (UPA; CDB-2914) is a progesterone receptor modulator with contraceptive potential. To test its effects when delivered by an intrauterine system (IUS), we prepared control and UPA-filled IUS and evaluated their effects i…
The 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 derivati…
The progestins have different pharmacologic properties depending upon the parent molecule, usually testosterone or progesterone (P), from which they are derived. Very small structural changes in the parent molecule may induce considerable d…
The pharmacological properties of progestins used in contraception and hormone replacement therapy (HRT) vary, depending upon the molecules from which they are derived. Very small structural changes may induce considerable differences in ef…
BACKGROUND: Many techniques have been developed to soften the cervix to reduce complications following surgical dilatation. Progesterone inhibits myometrial contractility and its secretion during pregnancy ensures cervical competence. We us…
The 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 derivati…
THERAPEUTIC APPLICATIONS: Antiprogestins are a promising class of therapeutic agents in the field of reproductive health. Mifepristone (exRU486) remains the leading compound of this class and is the only one presently used in clinical pract…