mortality/aging
• a small number of E17.5 embryos are dead or severely growth retarded
• most pups are believed to die at birth
• only one pup was noted to survive more than a day after birth
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craniofacial
• reduced in size
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• reduced in size
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• reduced in size
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embryo
N |
• normal dorsal-ventral patterning of the neural tube
• normal limb development
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• mesodermal cells of the ventral body wall do not attach to the umbilical vessels efficiently
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• amnion is intact but the part of the membrane normally covering the herniated gut is absent
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skeleton
N |
• normal skull length
• normal skeletalgenesis, except for membrane bones of the skull
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• reduced in size
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• reduced in size
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• reduced in size
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growth/size/body
• almost all E17.5 embryos have herniated guts
• the one pup to survive more than a day after birth had severe abdominal bleeding
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digestive/alimentary system
• a membrane consisting of endoderm and mesoderm material normally found surrounding the gut of E17.5 embryos is absent in these mice
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