Figure 1.

mRNA expression of vascular endothelial growth factor A (VEGFA) isoforms (A–C), VEGF receptors (E,F) and VEGFA protein abundance (D) in the intercaruncular endometrium of nonpregnant (n = 5 to 8) and pregnant (n = 5) Simmental heifers at Days 12, 15 and 18 post insemination as well as conceptuses at Days 15 (n = 8) and 18 (n = 4) (Insemination = Day 0). Asterisk (*) indicates significant differences between groups and letters significant differences within nonpregnant (a,b,c) and pregnant (x,y,z) groups. Abbreviations: P4 = progesterone and E2 = estradiol-17β. Results for mRNA expression presented as mean delta quantitative cycle (ΔCq) ± standard error of the mean (SEM). Differences with p < 0.05 were considered as significant.