mortality/aging
• lethality begins around E13.5 and continues through birth
|
• lethality begins around E13.5 and continues through birth with almost all mice dead by P1
|
liver/biliary system
• at E13.5 livers appear sponge-like with a hypocellular structure especially in the peripheral regions
|
• at E9.0, primary hepatoblast expansion is similar to wild-type
• at E10.0, epithelial sheets fail to undergo elongation or form branching cord like structures and instead hepatoblasts remain clustered at the terminal edges of the epithelial sheets
• at E11.5 and E13.5 variable abnormal liver architecture with clusters of hepatocytes is seen
• at E13.5, but not at E10.0, increased apoptosis of hepatocytes and erythrocytes is seen in the liver
|
• at E10.0, epithelial sheets fail to undergo elongation or form branching cord like structures and instead hepatoblasts remain clustered at the terminal edges of the epithelial sheets
• hepatic cord formation is also impaired in cultures of fetal liver cells
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• liver weight to body weight ratio is reduced to 2.9 +/- 0.7% compared to 5.2 +/-0.7% in wild-type mice; body weight is similar to wild-type
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• lobes are shriveled and hypoplastic; however the correct number of lobes are present and the number of proliferating cells seen at E13.5 is similar to wild-type
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pale liver
(
J:111404
)
• lobes appear thinner and paler
|
hematopoietic system
cardiovascular system
hemorrhage
(
J:111404
)
• occasional
|
homeostasis/metabolism
• particularly in the head
|