Figure 1.

Timeline of major experimental events. Estrous cycles were synchronized with gonadotrophin-releasing hormone and prostaglandin F_2α prior to intrauterine infusion of either LB broth vehicle medium (vehicle; n = 11) or pathogenic E. coli and T. pyogenes in LB broth (bacteria; n = 12) on experimental day 0. Major events include oocyte pickup (OPU, ), endometrial cytobrush () sampling, artificial insemination (AI), progesterone (P4) administration, and slaughter. Timeline is not drawn to scale.