mortality/aging
|
• 41% die perinatally
|
|
• 58% die before 21 days of age
|
growth/size/body
|
• the heart-to-body weight ratio exceeds controls by 105%
|
kidney cyst
(
J:67735
)
|
• mutants that survive to adulthood display kidneys that often contain 1-5 simple renal cysts
|
|
• mutants that die before 21 days of age are typically half the size of control littermates
|
cardiovascular system
|
• mutants crossed to a beta-galactosidase transgene in pericytes show that retinas contain highly disorganized vasculature, prominent areas of hemorrhaging and a paucity of pericytes both at the center and out toward the periphery of the tissue
|
|
• 9 of 11 exhibit kidney microaneurysms
|
|
• exhibit loss of pericytes at the retinal microvasculature
|
|
• myofibers are highly disorganized
|
|
• the heart-to-body weight ratio exceeds controls by 105%
|
|
• show thickening of the left ventricle
|
|
• show distension of the right ventricle
|
hemorrhage
(
J:67735
)
|
• most likely die due to hemorrhaging as autopsy often shows clots of blood surrounding the heart
|
|
• retinas contain prominent areas of hemorrhaging
|
renal/urinary system
|
• 9 of 11 exhibit kidney microaneurysms
|
kidney cyst
(
J:67735
)
|
• mutants that survive to adulthood display kidneys that often contain 1-5 simple renal cysts
|
|
• 9 of 11 exhibit many abnormal glomeruli (60-80%) that lack the formation of a capillary tuft at E18.5
|
|
• mesangial cell development is inhibited
|
|
• 30-60% of glomeruli are damaged by glomerulosclerosis; observe as early as 28 days after birth and fully penetrant by 3 months of age
|
vision/eye
|
• as early as 27 days following birth, observe a cotton-like opacity in the center of the eye and develop a proliferative retinopathy
|
|
• mutants crossed to a beta-galactosidase transgene in pericytes show that retinas contain highly disorganized vasculature, prominent areas of hemorrhaging and a paucity of pericytes both at the center and out toward the periphery of the tissue
|
|
• retinas contain prominent areas of hemorrhaging
|
|
• retina is detached from the posterior of the eye, migrates into the vitreous body, and loses its normal layered appearance, a phenotype that resembles diabetic retinopathy
|
muscle
|
• myofibers are highly disorganized
|
cellular
|
• mesangial cell development is inhibited
|


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