mortality/aging
• less than 15% of males live to 8 weeks of age
|
• mice are born at a lower frequency than expected (36% versus 64% wild-type) indicating partial prental lethality of males
|
behavior/neurological
• mice show an impairment of balance in the beam walking test
|
• mice show an impairment of balance and coordination in the beam walking test
• rotarod performance is impaired
|
• latency to fall from a wire cage top is decreased and grip strength is decreased
|
• P21 mice exhibit increased susceptibility to audiogenic seizures (bell producing 120-125 dB sosund), with increased incidence and severity of audiogenic seizures
• however, no impairment is seen in optomotor response, hot plate, or scent habituation tests
|
craniofacial
• males exhibit craniofacial dysmorphology, with a difference in global skull shape based on EDMA
|
• reduction in skull length at 6 weeks of age
|
• mice often have domed heads, typically associated with hydrocephalus
|
short snout
(
J:338313
)
• reduction in nose length at 6 weeks of age
|
growth/size/body
short snout
(
J:338313
)
• reduction in nose length at 6 weeks of age
|
nervous system
• P21 mice exhibit increased susceptibility to audiogenic seizures (bell producing 120-125 dB sosund), with increased incidence and severity of audiogenic seizures
• however, no impairment is seen in optomotor response, hot plate, or scent habituation tests
|
hydrocephaly
(
J:338313
)
• 6-week-old and 24-week-old mice have moderate hydrocephalus, with 75% incidence at 6 weeks and 100% incidence at 24 weeks
• however, no evidence of aqueduct blockage or abnormal morphology of cilia on ependymal cells lining the dilated ventricles, or motile ciliary dysfunction in the respiratory system
• no evidence of inflammation in the brain, no changes in central nervous system myelination and no cell loss or altered lamination in the visual, somatosensory, or somatomotor cortex
|
• patent aqueducts
|
• cultured cortical neurons show defects in dendritic arborization, with reduced dendrite branch points, dendrite branch levels, and total dendritic lengths that lead to a large reduction in dendritic arbor complexity
|
• mice show increased delta power and epileptiform activity on the EEG; mice have an increased percentage of time spent exhibiting spiking events during the dark phase
|
skeleton
• reduction in skull length at 6 weeks of age
|
• mice often have domed heads, typically associated with hydrocephalus
|
vision/eye
• increase in interorbital distance at 6 weeks of age
|
Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
syndromic X-linked intellectual developmental disorder bain type | DOID:0070538 |
OMIM:300986 |
J:338313 |