TABLE 2.
IgA and IgM titers at different IgG titers
| Group | Immunogen | Anti-P. acnes IgG titer | Mean concn (μg/ml) |
|
|---|---|---|---|---|
| IgA | IgM | |||
| 1 | PBS | 0 | 139.142 ± 2.558 | 6.434 ± 0.150 |
| 2 | Astragalus polysaccharides | 0 | 140.482 ± 1.258 | 6.276 ± 0.492 |
| 3 | P. acnes plus astragalus polysaccharides | <100 at 35 days | 141.887 ± 4.104 | 6.205 ± 0.260 |
| 4 | P. acnes plus astragalus polysaccharides | 400 | 135.798 ± 0.547 | 5.761 ± 0.126 |
| 5 | P. acnes plus astragalus polysaccharides | 800 | 139.091 ± 1.531 | 5.671 ± 0.233 |
| 6 | P. acnes plus astragalus polysaccharides | 1,600 | 142.240 ± 2.912 | 6.391 ± 0.458 |
| 7 | P. acnes plus astragalus polysaccharides | 3,200 | 146.418 ± 2.900a | 6.350 ± 0.138 |
| 8 | P. acnes plus astragalus polysaccharides | 6,400 | 146.597 ± 0.785a | 6.338 ± 0.443 |
a
The concentrations of IgA in groups 7 and 8 were significantly higher than those in the two control groups (P < 0.01).