mortality/aging
• pups appear normal at birth
• homozygotes usually die before weaning, most frequently in the first week
• death is preceded by cessation of growth, weight loss, and dehydration
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growth/size/body
• growth is slower than normal, but appetite and feeding seems normal
• females are more severely affected than males
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hematopoietic system
• the population of double positive CD4/CD8 cells in thymus gradually becomes reduced in 2-3 week old mice
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• absence of B cells and precursors in E18.5 livers
• few or no B220 positive cells are present in bone marrow or spleen
• no IgM positive cells are found
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• spleen degenerates in first three weeks of life
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immune system
• the population of double positive CD4/CD8 cells in thymus gradually becomes reduced in 2-3 week old mice
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• absence of B cells and precursors in E18.5 livers
• few or no B220 positive cells are present in bone marrow or spleen
• no IgM positive cells are found
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• spleen degenerates in first three weeks of life
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