text: In study 1, cyclic ewes received vehicle, cortisol, << PF 915275 >> (PF; a selective inhibitor of [[ HSD11B1 ]]), cortisol and PF, meloxicam (a selective inhibitor of PTGS2), cortisol and meloxicam, recombinant ovine IFNT, or IFNT and PF into the uterus from day 10 to day14 after estrus.