mortality/aging
• mice die 6 to 8 weeks after birth
|
skeleton
• at P0, mice exhibit skeletal dysplasia that worsens with age unlike wild-type mice
|
• mice exhibit anterior displacement of the foramen magnum
|
• the skull base is shortened compared to in wild-type mice
|
• with a slight increase in left-right and dorsal-ventral axes
|
• mice exhibit an abnormal temporal bone orientation
• the region of the temporal bone corresponding to the human mastoid is poorly developed with low pneumatization compared to in wild-type mice
|
prognathia
(
J:147208
)
• prognathic mandible
|
• delayed ossification at P14
|
• delayed ossification
|
• at P7, the orbibular apophysis of the malleus is still cartilaginous unlike in wild-type mice
|
• delayed ossification
|
bowed radius
(
J:147208
)
• at 3 weeks of age
|
bowed ulna
(
J:147208
)
• at 3 weeks of age
|
bowed fibula
(
J:147208
)
• at 3 weeks of age
|
bowed tibia
(
J:147208
)
• at 3 weeks of age
|
short femur
(
J:147208
)
short ribs
(
J:147208
)
• hypertrophic chondrocytes are reduced in number and size compared to in wild-type mice
|
• disorganized with shortened chondrocyte columns and hypertrophic chondrocytes that are reduced in number and size
|
hearing/vestibular/ear
• delayed ossification at P14
|
• delayed ossification
|
• at P7, the orbibular apophysis of the malleus is still cartilaginous unlike in wild-type mice
|
• delayed ossification
|
• at P0, ossification in the cochlea is severely delayed compared to in wild-type mice
|
• the tunnel of the Corti presents a smaller opening than in wild-type mice
|
• the space in between the outer hair cells is broader than in wild-type mice
• the two first rows of outer hair cells are not supported at their basal poles by Dieter's cell but are replaced by a pillar-like structure called modified Dieter's cells
|
• mice exhibit two ectopic pillars (modified Deiter's cells) close to the first two outer hair cells in addition to the two normal pillar cells and instead of normally placed Dieter cells
|
• mice display a significantly higher ABR threshold for frequencies between 3 to 50 kHz, with a maximum of 50 dB for the medium range frequencies, and around 30 dB for lower and higher frequencies indicating a mild hearing loss
|
craniofacial
• mice exhibit anterior displacement of the foramen magnum
|
• the skull base is shortened compared to in wild-type mice
|
• with a slight increase in left-right and dorsal-ventral axes
|
• mice exhibit an abnormal temporal bone orientation
• the region of the temporal bone corresponding to the human mastoid is poorly developed with low pneumatization compared to in wild-type mice
|
prognathia
(
J:147208
)
• prognathic mandible
|
• delayed ossification at P14
|
• delayed ossification
|
• at P7, the orbibular apophysis of the malleus is still cartilaginous unlike in wild-type mice
|
• delayed ossification
|
• the midface is hypoplastic compared to in wild-type mice
|
growth/size/body
• the midface is hypoplastic compared to in wild-type mice
|
megacephaly
(
J:147208
)
nervous system
• the space in between the outer hair cells is broader than in wild-type mice
• the two first rows of outer hair cells are not supported at their basal poles by Dieter's cell but are replaced by a pillar-like structure called modified Dieter's cells
|
limbs/digits/tail
bowed radius
(
J:147208
)
• at 3 weeks of age
|
bowed ulna
(
J:147208
)
• at 3 weeks of age
|
short femur
(
J:147208
)
bowed fibula
(
J:147208
)
• at 3 weeks of age
|
bowed tibia
(
J:147208
)
• at 3 weeks of age
|
Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
thanatophoric dysplasia | DOID:13481 |
OMIM:187600 OMIM:187601 OMIM:273680 |
J:147208 |