liver/biliary system
• focal hemorrhagic parenchymal necrosis
|
• apoptotic bodies are more frequent in livers of male mice
|
• mild lobular inflammatory activity with foci of mononuclear cells
• mild portal mononuclear cell infiltrate surrounding interlobular bile ducts
|
• 17-20-month-old mice develop liver lesions resembling steatohepatitis
• however, no liver fibrosis is seen
|
• focal hemorrhagic parenchymal necrosis, surrounded and penetrated by neutrophils
|
• aged mice exhibit hepatocyte anisocytosis and anisokaryosis
• hepatocytes show cleared-out cytoplasm in aged mice
• mice sow disseminated single hepatocytes containing erythrocytes, as well as syncytial parenchymal areas with nuclear crowding
|
• Mallory-Denk bodies (MDBs) appear as irregularly shaped dense eosinophilic cytoplasmic clumps and granules in ballooned hepatocytes, predominantly in perivenular position
|
• focal necrosis of hepatocytes
|
• mild to moderate liver steatosis in the majority of mice; fatty change as multiple small and medium-sized cytoplasmic vesicles with gradual coalescence to larger vesicles toward the lobular periphery
• rarely, MDB-containing hepatocytes are surrounded by neutrophils and mononuclear cells
|
• approximately 80% of male and 35% of females develop liver tumors, with mice developing multiple tumors; distinct non-encapsulated nodules with expanding growth leading to compression of the surrounding parenchyma, and irregular arrangement and morphology of tumor cells
• pleomorphic tumors are more frequent than monomorphic and more prevalent in males than females
|
• tumors in aged mice closely resemble human hepatocellular carcinoma in their genetic profile
|
neoplasm
• approximately 80% of male and 35% of females develop liver tumors, with mice developing multiple tumors; distinct non-encapsulated nodules with expanding growth leading to compression of the surrounding parenchyma, and irregular arrangement and morphology of tumor cells
• pleomorphic tumors are more frequent than monomorphic and more prevalent in males than females
|
• tumors in aged mice closely resemble human hepatocellular carcinoma in their genetic profile
|
cellular
• apoptotic bodies are more frequent in livers of male mice
|
• mice show chromosomal instability in liver at 12 months of age, before tumor formation
|
immune system
• mild lobular inflammatory activity with foci of mononuclear cells
• mild portal mononuclear cell infiltrate surrounding interlobular bile ducts
|
cardiovascular system
• focal hemorrhagic parenchymal necrosis
|
Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
hepatocellular carcinoma | DOID:684 |
OMIM:114550 |
J:309021 | |
metabolic dysfunction-associated steatohepatitis | DOID:0080547 | J:309021 |