Fig 3. Immunhistochemical staining intensity of PTGS2-positive immune cells in different uterine cell types at 2 h (Group 1, n = 9 gilts) and at 17 h (Group 2, n = 7 gilts) after single uterine horn infusions of seminal plasma and contralateral infusion of PBS. Stain scores: 0 = negative, 1: weak, 2 = positive, 3 = strongly positive).

Asterisk indicates a significant difference (P< 0.05).