Abstract
To evaluate the effects of high progesterone prior to oocyte retrieval on the genomic profile of peri-implantation endometrium, we conducted this single-center, prospective cohort study. Depending on whether or not the progesterone level on the day of hCG administration and the day after hCG administration were elevated, a total of 20 women undergoing IVF treatment who did not have fresh embryo transfer were included: Group 1 refers to subjects with normal progesterone level on both days; Group 2 refers to subjects with normal progesterone level on the day of hCG administration and high progesterone level on the day after hCG administration; Group 3 refers to subjects with high progesterone level on the day of hCG administration and normal progesterone level on the day after hCG administration; Group 4 refers to subjects with high progesterone level on both days. Five subjects were included in each group. Endometrial samples were obtained 7days after hCG administration. We found that high progesterone level prior to oocyte retrieval predominantly affected components of the NK cell mediated cytotoxicity pathway in the endometrium and that significant differences were only seen when progesterone measurements on both the day of and day after hCG administration were considered together.
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