mortality/aging
• most died within 3-4 days of birth, and more than 85% failed to reach weaning age due to increased susceptibility to bacterial infection, however treatment of mothers with antibiotics to inhibit bacterial infection resulted in normal lifespan
|
growth/size/body
• homozygous null mice rederived in a Pasteurella pneumontropica-free environment had highly atrophic nasal turbinates, characterized by a flat and unconvoluted structure
|
• nasal passages of homozygous null mice rederived in a Pasteurella pneumontropica-free environment contained pools of eosinophillic fluid suggestive of a proteinaceous exudates
|
• homozygous null mice rederived in a Pasteurella pneumontropica-free environment had a diffusely atrophic olfactory epithelium
|
broad snout
(
J:64193
)
• shortened and broadened snout with a characteristic bull-like appearance in adults
|
short snout
(
J:64193
)
• shortened and broadened snout with a characteristic bull-like appearance in adults
|
• detected at E13.5, persisted throughout embryonic development and into adulthood in the small percentage of surviving mice
|
• birth weight was 20-30% lower than in wild-type and surviving adults consistently weighed 50-65% of controls
|
homeostasis/metabolism
dehydration
(
J:64193
)
• neonates were dehydrated
|
behavior/neurological
• showed degeneration of the intestinal tract that was consistent with starvation
|
• surviving mice emitted a chirping sound
|
digestive/alimentary system
• showed degeneration of the intestinal tract that was consistent with starvation
|
hematopoietic system
• increased number of reticulocytes and the presence of nucleated red blood cells indicate stress erythropoiesis in embryos and neonates but was not observed in adults
|
• 2-3 fold increase in the number of fetal liver erythroid progenitors
|
• 20-30% decrease in number of red blood cells in the peripheral blood of adults
|
• 30-40% decrease in hematocrit in embryos, however normal in surviving adults
|
• presence of nucleated red blood cells in the peripheral blood in embryos
|
anisocytosis
(
J:64193
)
• erythrocytes varied in size at E16.5-E18.5
|
• embryos, neonates, and adults showed a high frequency of erythrocytes containing Howell-Jolly bodies, nuclear remnants leftover from improper enucleation
|
macrocytosis
(
J:64193
)
• increase in mean erythrocyte volume at E16.5-E18.5
• seen in adults due to general increase in the red blood cell size and not presence of aberrant red blood cell population
|
• increased number of reticulocytes in embryos and neonates but not in adults
|
immune system
• middle ear of neonates and surviving adults was completely obstructed by a purulent exudates
|
• nasal passages of neonates and surviving adults were completely obstructed by purulent exudates and contained high levels of macrophages and neutrophils
|
• high levels of Pasteurella pneumotropica in nasal passages and middle ear most likely due to craniofacial bone abnormalities that prevent the drainage of proteinaceous exudates and clearing of infectious agent
• homozygous null mice were almost fully viable when rederived in a Pasteurella pneumontropica-free environment or when mothers were treated with antibiotics
|
respiratory system
• homozygous null mice rederived in a Pasteurella pneumontropica-free environment had highly atrophic nasal turbinates, characterized by a flat and unconvoluted structure
|
• nasal passages of homozygous null mice rederived in a Pasteurella pneumontropica-free environment contained pools of eosinophillic fluid suggestive of a proteinaceous exudates
|
• homozygous null mice rederived in a Pasteurella pneumontropica-free environment had a diffusely atrophic olfactory epithelium
|
• nasal passages of neonates and surviving adults were completely obstructed by purulent exudates and contained high levels of macrophages and neutrophils
|
hearing/vestibular/ear
• middle ear cavities of homozygous null mice rederived in a Pasteurella pneumontropica-free environment contained pools of eosinophillic fluid suggestive of a proteinaceous exudates
|
• middle ear of neonates and surviving adults was completely obstructed by a purulent exudates
|
taste/olfaction
• homozygous null mice rederived in a Pasteurella pneumontropica-free environment had a diffusely atrophic olfactory epithelium
|
craniofacial
• homozygous null mice rederived in a Pasteurella pneumontropica-free environment had highly atrophic nasal turbinates, characterized by a flat and unconvoluted structure
|
• nasal passages of homozygous null mice rederived in a Pasteurella pneumontropica-free environment contained pools of eosinophillic fluid suggestive of a proteinaceous exudates
|
• homozygous null mice rederived in a Pasteurella pneumontropica-free environment had a diffusely atrophic olfactory epithelium
|
broad snout
(
J:64193
)
• shortened and broadened snout with a characteristic bull-like appearance in adults
|
short snout
(
J:64193
)
• shortened and broadened snout with a characteristic bull-like appearance in adults
|
reproductive system
• analysis of adult mice in which mothers were treated with antibiotics to prevent bacterial infection and thus increase viability, indicated that 90% of females were sterile
|
• analysis of adult mice in which mothers were treated with antibiotics to prevent bacterial infection and thus increase viability, indicated that 80% of males were sterile
|
embryo
• detected at E13.5, persisted throughout embryonic development and into adulthood in the small percentage of surviving mice
|
skeleton
• homozygous null mice rederived in a Pasteurella pneumontropica-free environment had highly atrophic nasal turbinates, characterized by a flat and unconvoluted structure
|
integument
Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
otitis media | DOID:10754 | J:64193 |