Figure 3.

(A) Blastocysts were transferred onto pre-decidualized endometrial stromal cells derived from fertile women in the presence of either 0.1 µM buserelin (a) or 2 µM cetrorelix acetate (b) for 48 h.

The presence of GnRH analogues had no detrimental effect on blastocyst attachment and spreading when compared with those in the absence of GnRH analogues (c). The dotted lines indicate the area of trophoblast spreading. (B) Levels of hCG in supernatants from control, buserilin or cetrotide co-cultures. Magnification ×20.