Figure 1: Superoxide release by MN phagocytes of colostrum. Bacteria were opsonized with a normal serum pool (Serum), a colostrum supernatant pool (colostrum) and purified IgA (IgA). In control assays, MN cells were pre-incubated with bacteria non-opsonized. The results represent the mean and SD of ten experiments with cells from different individuals. *p=0.001 (F=5.11) comparing the treated groups with spontaneous superoxide released, considering the same collection period and bacteria. #p=0.001 (F=10.92) comparing bacteria type, considering the same opsonin source and collection time. †p=0.048 (F=2.68) comparing superoxide release between the different collection time, considering the same treatment and bacteria.