mortality/aging
• die between E7.5 and E8.5
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embryo
• embryos have an oval to conic shape resulting from a failure to extend the proximo-distal axis
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• embryonic ectoderm appears less differentiated at E7.5 and embryos lack a proamniotic canal
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• embryonic endoderm appears less differentiated at E7.5
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• at E7.5 internal cavitation is completely absent
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• a failure to extend the proximo-distal axis is detected at E6.5
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• at the egg cylinder stage (E6.5) embryos show a total growth reduction
• at the gastrula stage (E7.5) embryos resemble wild-type embryos at E5.5
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• even after 3 days of culture of embryos collected at E6.5
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• minimal outgrowth in cultured E6.5 embryos even after 3 - 4 days in culture
• apparent defect in the ability of trophoblast stem cells or their very early descendents to differentiate into later trophoblast cell types or trophoblast giant cells and the
• maintenance of trophoblast stem cells is impaired
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• strongly reduced or absent at E7.5
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• at E6.5
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• strongly reduced or absent at E7.5
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• at E7.5
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growth/size/body
• at the egg cylinder stage (E6.5) embryos show a total growth reduction
• at the gastrula stage (E7.5) embryos resemble wild-type embryos at E5.5
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