Co-culture of Mouse Two-cell Embryos on Human Endometrial Stromal Cells in Proliferative and Secretory Phases

There were no significant differences in the distribution of embryos reaching to 2cells, 4cells, morula or blastocysts culturing on human endometrial stromal cells (Secretory or proliferative phases). The percent of morula in stage A (without fragmentation), stage B (<25% fragmentation), stage C (25-50% fragmentation) and stage D (>50% fragmentation) and did not showed significant differences between two coculture groups. Thus, the phase that the endometrial stromal cells were in thereby did not affect on the quality of embryos.