Progesterone receptor (PR) is a member of the nuclear receptor superfamily. To date, two
isoforms of PR have been identified, PR-A and PR-B. In progesterone responsive tissues …

Progesterone receptor (PR) is expressed in a wide variety of human tissues, including both
reproductive and non-reproductive tissues. Upon binding to the PR, progesterone can …

Progesterone receptor (PR) presents two main isoforms (PR-A and PR-B) that are regulated
by two specific promoters and transcribed from alternative transcriptional start sites. The …

The human progesterone receptor (PR) is expressed as two isoforms, PRA and PRB, that
function as ligand-activated transcription factors. In vitro studies suggest that the isoforms …

In rodents, progesterone receptors (PRs) A and B have different and often nonoverlapping
roles, and this study asked whether different activities of the PR proteins in mouse are …

We characterized the expression pattern of progesterone receptor (PR) in two regions of the
oviduct (ampullae and isthmus), and the uterus (epithelium and stroma) of the rabbit …

In humans, progesterone levels are sustained before the onset of labour. Therefore, the
mechanism for parturition that has been proposed for humans is 'functional'progesterone …

Progesterone plays a central role in the regulation of ovarian function. The progesterone
receptor (PR) has been shown to be essential for ovulation because mice lacking PR fail to …

Background The mechanism that initiates human parturition has been proposed to
be'functional progesterone withdrawal'whereby the 116 kDa B-isoform of the progesterone …

Context: We examined whether human parturition involves functional progesterone
withdrawal mediated by changes in myometrial expression of progesterone receptors (PRs) …