in order to assess the contribution of potential sources of prostaglandins to the increase in prostaglandin levels observed at oviposition , prostaglandins e2 , f2 alpha , and 13,14-dihydro-15-keto pgf2 alpha ( pgfm , the stable but biologically less active metabolite of pgf2 alpha ) were measured in plasma from the brachial vein , ovarian follicular vein and uterine vein , and in tissues from ovarian follicles and the uterus 12 h before and at midsequence oviposition or a terminal oviposition .
C0033554
prostaglandin
C0012472
prostaglandins e2