hematopoietic system
• reduced relative percentage of B cells in peripheral and mesenteric lymph nodes at 2 weeks
• lymph nodes enriched in precursor (B220low, IgM-) B cells
• alterations in relative percentages decreased with age
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• smaller B cell follicles, evident at 2 weeks of age, but less apparent at 4 weeks and normal at 7 to 8 weeks
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• evident at 2 weeks of age, but less apparent at 4 weeks and normal at 7 to 8 weeks
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immune system
N |
• normal thymus
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• reduced relative percentage of B cells in peripheral and mesenteric lymph nodes at 2 weeks
• lymph nodes enriched in precursor (B220low, IgM-) B cells
• alterations in relative percentages decreased with age
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• smaller B cell follicles, evident at 2 weeks of age, but less apparent at 4 weeks and normal at 7 to 8 weeks
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• evident at 2 weeks of age, but less apparent at 4 weeks and normal at 7 to 8 weeks
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• impaired segregation between B and T cell zones, evident at 2 weeks of age
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• reduced number and size of follicles, evident at 2 weeks of age, still apparent at 4 weeks, with normal number of reduced size follicles at 7 to 8 weeks
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• evident at 2 weeks of age
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