This question borders on biochemistry and endocrinology. I am curious what the effects of estrogen are in the uterus during menstruation. I know the overall outcome is that it thickens uterine lining, but I want to know what reactions are taking place during this whole process. What things are inhibited, activated, etc.?
I've looked online and so far what I know is that in rats, estrogen causes both the release of neuroprogesterone to activate GnRH neurons to release LH onto gonadotropes. What I do not know is how does this effect the uterus? Is there any evidence of it happening in humans?