mortality/aging
• develop to term but die of breathing problems associated with the lack of a nose
|
vision/eye
anophthalmia
(
J:22316
)
nervous system
• at E10.5 Nkx2.2+ V3 progenitors show dorsal expansion in the thoracic and cervical regions of the spinal cord
|
• anterior pretectum is reduced but present and the posterior pretectum scarcely exists at E12.5
|
• diencephalic structures were poor but present
|
• prethalamus and thalamus were reduced at E12.5
|
• E17.5 mutants show a greater than 90% reduction in the number of calbindin-positive cells close to the white matter in the spinal cord, indicating that Renshaw cells fail to develop
|
• no synaptic potentials are evoked by ventral root stimulation, indicating that Renshaw cell inputs to motor neurons are absent
|
respiratory system
• lack nose
|
• due to lack of nose
• cause of perinatal death
|
craniofacial
• lack nose
|
cellular
• at E10.5 Nkx2.2+ V3 progenitors show dorsal expansion in the thoracic and cervical regions of the spinal cord
|
growth/size/body
• lack nose
|