Pericytes in the stroma of the rat uterus.
After ovariectomy and 3 daily injections of progesterone plus one of oestradiol-17 beta, 69% of stromal capillaries of the rat uterus became sheathed with pericytes. On Day 5 of pregnancy the value was 74% but at other times (Days 4 and 6) and with progesterone-only or not treatment less than 15% of capillaries were associated with pericytes. This period of pericyte presence coincides with the time when implantation is possible.
D000818:Animals; D002196:Capillaries / Q000166:cytology / Q000187:drug effects; D002369:Castration; D004717:Endometrium / Q000098:blood supply*; D004958:Estradiol / Q000494:pharmacology; D005260:Female; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D051381:Rats
D011374:Progesterone; D004958:Estradiol