mortality/aging
• most embryos survive to E3.5, while no homozygous embryos are recovered at E7.5: only empty deciduas are observed, indicating embryo degeneration and resorption shortly after E3.5
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embryo
• there is a dramatic increase in apoptotic cell death in inner cell mass after 24 hours in culture compared to almost none in wild-type or heterozygous embryo culture
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• cultured E3.5 embryos fail to expand when cultured for 5 days after zona pellucida was mechanically removed
• after 1 day in culture, only 7% of cells show BrdU uptake vs 60% of wild-type cells
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• after 96 hours in culture, blastocysts appear shrunken compared to wild-type
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cellular
• there is a dramatic increase in apoptotic cell death in inner cell mass after 24 hours in culture compared to almost none in wild-type or heterozygous embryo culture
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• cultured E3.5 embryos fail to expand when cultured for 5 days after zona pellucida was mechanically removed
• after 1 day in culture, only 7% of cells show BrdU uptake vs 60% of wild-type cells
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reproductive system
• only empty deciduas are observed
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