The killing activity of NK cells and the proliferation rate of spleen cells were tested by MTT assay, and T cell subgroupCD4+ , CD8+ were tested by the indirect immune fluorescent assay.
The self-structure of iron core of horse spleen ferritin and the extra phosphate had an effect upon the rate of iron release, but none change of the reaction order was observed.
马脾铁蛋白自身的铁核结构和外加的磷酸盐均能影响该蛋白释放铁的速率，但并不改变其反应级数。
3
Results The clearance rate of charcoal particles, the level of PFC and serum hemolysin and the spleen and thymus index decreased in aging mice.