mortality/aging
• mutants show significantly greater mortality (from severe colitis) than wild-type after second DSS cycle (at 42 days) than wild-type
|
growth/size/body
weight loss
(
J:114972
)
• after first cycle of dextran sodium sulfate (DSS) treatment, mutants lose significantly more weight
|
behavior/neurological
• throughout experiments, mutants appear ill and display a hunched posture
|
digestive/alimentary system
• more dysplastic changes in colonic epithelium are seen after first DSS treatment than in wild-type
|
• after DSS treatment, mutants show more severe thickening and shortening of the colon; perforations are frequently observed post-mortem
|
• after first DSS treatment, mice show more mucosal ulcers than controls
|
• after DSS and azoxymethane (AOM) treatment, mutants display severe colitis at an increased level vs controls
|
hematopoietic system
• in 10 month-old mutants, marked lymphoid hyperplasia of the thymus is observed
|
homeostasis/metabolism
• mice have reduced serum albumin levels
|
• increase in colonic tumor incidence is observed compared to controls after second DSS cycle; after third cycle, no significant difference in tumor incidence is observed
|
immune system
N |
• thymocyte numbers, and T and B cell numbers are normal compared to wild-type
|
• in 10 month-old mutants, marked lymphoid hyperplasia of the thymus is observed
|
• 10 month-old mice display lymphoid imflammatory infiltrates in the liver, spleen, lungs, and salivary glands
• after first DSS treatment (at 21 days), mice show greater leukocyte infiltration and histologic damage than wild-type
|
• after DSS and azoxymethane (AOM) treatment, mutants display severe colitis at an increased level vs controls
|
neoplasm
• increase in colonic tumor incidence is observed compared to controls after second DSS cycle; after third cycle, no significant difference in tumor incidence is observed
|
endocrine/exocrine glands
• in 10 month-old mutants, marked lymphoid hyperplasia of the thymus is observed
|