Does premature elevation of plasma progesterone alter pregnancy rates of in vitro fertilization and embryo transfer?
The similar fertilization and cleavage rates obtained in groups A and B suggest that pre-hCG elevation in plasma P does not lead to decreased oocyte quality. Yet the lower PR observed when plasma P rises prematurely suggests that the prolonged but discrete elevation in plasma P occurring in these cases might alter endometrium receptivity to embryo implantation.
Glutamate induces a late PAI in the LC, which may be mediated by a novel postsynaptic Na(+)-dependent K(+) current triggered by AMPA/kainate receptors.