mortality/aging
renal/urinary system
• kidneys are rudimentary in dead neonates
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• some dead neonates have hydronephrotic kidneys
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small kidney
(
J:104938
)
• at E14.5, kidneys are approximately half the size of wild-type kidneys
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• at 3 weeks, mice displayed renal hypoplasia or renal hypoplasia with unilateral hydronephrosis and megaureter
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• 2 of 7 neonates necropsied on P1 had duplex kidneys
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• at E14.5, 20% of mutants have unilateral renal agenesis
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• the two ureters from the duplex kidneys join before entering bladder
• in some instances, the ureter and bladder do not separate or attach to the bladder
• the ureter is very tortuous
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• at E11.5, ureteric bud is Y-shaped not T-shaped suggesting branching is impaired
• at E12.4, reduced branching is observed in the ureteric bud
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• at E11.5, ureteric bud outgrowth is delayed
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embryo
• only rostral-most part of duct forms in mutants
• female sex ducts are rudimentary
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• at E10.75, extension of the nephric duct to urogenital sinus is impaired
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• at E14.5, nephric duct is not maintained
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• male sex ducts are rudimentary
• at E10.75, extension of the nephric duct to urogenital sinus is impaired
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