Fig. 1From: Intrauterine devices influence prostaglandin secretion by equine uterus: in vitro and in vivo studiesEffects of an intrauterine device (IUD) on prostaglandin E2 (A, C) and prostaglandin F2α (B, D) secretion by equine epithelial (A, B) and stromal (C, D) cells, collected during the early luteal phase, after 6, 12, and 24 h of incubation with the presence of IUD. Asterisks indicate significant differences (*P < 0.05; **P < 0.01) from the respective control. Superscript letters indicate significant differences between the control group (control a,b) across the time points or between IUD mares (IUD x,y) across the time pointsBack to article page