mortality/aging
• homozygous males have a mean life span of greater than 21 months, 3 to 4 time longer than non-homozygous males
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endocrine/exocrine glands
• seen in about 20% of mice
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immune system
• seen in about 20% of mice
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• decrease in CD4+ T cells with age is less pronounced than in non-homozygous males
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• do not develop severe monocytosis, unlike non-homozygous males
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• at 3 to 5 months of age relative to non-homozygous males; however by 2 years of age IgG levels are similar to those in 2 to 3 month old early dying males
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• minimal signs of autoimmune disease are seen at 8 months of age unlike non-homozygous males
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• anti-nuclear antibodies are decreased relative to non-homozygous males
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cardiovascular system
N |
• no arteritic or degenerative vascular disease or myocardial infarctions are detected
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neoplasm
• seen in about 20% of mice
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• seen in about 20% of mice
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renal/urinary system
N |
• glomerular lesions characteristic of aging are seen at 28 months of age but homozygotes do not develop proliferative glomerulonephritis
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hematopoietic system
• seen in about 20% of mice
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• decrease in CD4+ T cells with age is less pronounced than in non-homozygous males
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• do not develop severe monocytosis, unlike non-homozygous males
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• at 3 to 5 months of age relative to non-homozygous males; however by 2 years of age IgG levels are similar to those in 2 to 3 month old early dying males
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