| Groups | N | Concentration (pg/ml) | |
| TNF-α | IL-1β | ||
| 1. Normal group | 25 | 19.5 ± 1.3 | 2.25 ± 0.2 |
| 2. Chemically exposed | 25 | 52.3 ± 1.4 | 3.43 ± 0.3 |
| P* (T- test) |
| 0.00 | 0.001 |