mortality/aging
• embryos are only observed at early pre-implantation stages, with live embryos seen at E3.5 but not E8.5; embryos reach the blastocyst stage but die shortly after implantation
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embryo
• 3.5 dpc blastocysts cultured in vitro show a smaller inner cell mass (ICM) and after 4 days in culture, ICM clump size is smaller
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• 3.5 dpc blastocysts cultured in vitro for 4 days show a reduced size of the trophectoderm
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