RationaleProgesterone and its metabolite, 5α-pregnan-3α-ol-20-one (3α,5α-THP), have actions in the ventral tegmental area (VTA) that are required for lordosis, a characteristic mating posture of female rodents. 17β-estradiol (estradiol) co-…
BackgroundChanges in levels of estradiol and progesterone that occur with the transition to reproductive senescence may influence nociception or affect.ObjectiveTo ascertain whether nociceptive and affective processes change with reproducti…
In the ventral tegmental area, progestogens facilitate sexual receptivity of rodents via actions at dopamine type 1-like and/or gamma-aminobutyric acid type A receptors and activation of downstream signal transduction molecules. In the pres…
Progestin-facilitated lordosis of hamsters and rats is enhanced by activation of dopamine type 1 (D1) or GABAA/benzodiazepine receptor complexes (GBRs) in the ventral tegmental area (VTA) and these effects involve G-proteins and second mess…
In the ventral tegmental area (VTA), 5alpha-pregnan-3alpha-ol-20-one (3alpha,5alpha-THP) facilitates lordosis. Whether this involves dopamine type 1 (D1) or dopamine type 2 (D2) receptors is of interest. Ovariectomized (ovx) rats with guide…