mortality/aging
• most mutants die by 2 months of age
|
• fewer than expected mutants are found after birth (P0 - P3)
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behavior/neurological
• abnormal posture associated with hydrocephalus is seen by 1 week of age in a few mutants (4/16)
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abnormal gait
(
J:92220
)
• abnormal gait associated with hydrocephalus is seen by 1 week of age in a few mutants (4/16)
|
craniofacial
• a solitary incisor at the midline is seen in 4 out of 19 mutants
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• the mandible is smaller than normal and the two halves are abnormally fused
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• the premaxilla are slightly reduced in size
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growth/size/body
• a solitary incisor at the midline is seen in 4 out of 19 mutants
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• average body weight at 3 weeks is 32% that of wild-type littermates
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skeleton
• a solitary incisor at the midline is seen in 4 out of 19 mutants
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• the mandible is smaller than normal and the two halves are abnormally fused
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• the premaxilla are slightly reduced in size
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nervous system
• at E10.5 the cranial neural tube remains open
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hydrocephaly
(
J:92220
)
• hydroencephaly is seen in 4 out of 16 mutants
|
• the basal ganglia are disorganized
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• the diencephalon is displaced anteriorly
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• the hippocampus is disorganized
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• at E17.5 the cerebral cortex is disorganized
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exencephaly
(
J:92220
)
• at E13 - 18 in about 15% of mutants exencephaly is seen in the forebrain, midbrain, and hindbrain regions
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embryo
• at E10.5 the cranial neural tube remains open
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