mortality/aging
• at later developmental stages up to E12.5, abnormal embryos comprised approximately one quarter of the total number
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• by E6.5, 15% of deciduas contained abnormal or partially resorbed embryos
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embryo
• some embryos at E9.5 exhibit little or no axial organization and resemble a flattened disk
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• little mesodermal differentiation was noted in embryos developing to E8.5
• mesodermally-derived axial structures such as a neural tube, somites and limb buds were not seen at later stages
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• at the anterior pole, some embryos exhibited head fold structures, although they were abnormal in size and morphology; occasionally otocysts and branchial arches were seen
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• at E9.5, many embryos exhibited little posterior extension of the embryonic axis, although a few did develop abnormal trunk and tail regions at later stages
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• developmental retardation was noted at all stages
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• embryos appeared smaller in vivo, and cultured blastocysts exhibit smaller blastocyst outgrowths
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• at E7.5, embryos exhibited a small egg cylinder, with an unusual invagination at the circumferential constriction the divides the egg cylinder between the embryonic and extraembryonic ectoderm
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• in embryos developing to E8.5, a thickened primitive streak with limited growth of extraembryonic mesoderm was seen
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• some mutant embryos at E7.5 had an extraembryonic portion that was larger than the embryonic portion, resulting in a comma-like shape
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• at E6.5, a small proamniotic cavity was noted
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• abnormal surface, described as bumpy and ruffled
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• the visceral yolk sac of embryos developing to E9.5 was large compared to the embryonic portion, but small compared to wild-type controls
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growth/size/body
• developmental retardation was noted at all stages
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• embryos appeared smaller in vivo, and cultured blastocysts exhibit smaller blastocyst outgrowths
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limbs/digits/tail
nervous system
Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
Pfeiffer syndrome | DOID:14705 |
OMIM:101600 |
J:22118 |