Fig. 6From: Protease secretions by the invading blastocyst induce calcium oscillations in endometrial epithelial cells via the protease-activated receptor 2Immunofluorescent staining of human blastocysts 5 and 6 days post fertilization. A Trypsin immunostaining on intact human blastocysts with primary Anti-Trypsin (D-1) antibody (sc-137077). B Blastocysts were stained with the same staining procedure but the primary antibody was omitted. Scale bar = 100 µm. TE = trophectoderm, ICM = inner cell massBack to article page