From: Lung carcinogenicity of inhaled multi-walled carbon nanotube in rats
Male | Female | |||||||
---|---|---|---|---|---|---|---|---|
Group (mg/m3) | 0 | 0.02 | 0.2 | 2 | 0 | 0.02 | 0.2 | 2 |
Numbers of animals examined | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
Survival animal number | 36 | 42 | 38 | 37 | 42 | 34 | 39 | 36 |
  (rate:%) | (72) | (84) | (76) | (74) | (84) | (68) | (78) | (72) |
Body weight | ||||||||
 Terminal body weight (g) mean | 401 | 394 | 410 | 399 | 278 | 265 | 277 | 261 * |
  SD | 45 | 37 | 39 | 38 | 31 | 26 | 23 | 26 |
 Relative body weight (%) mean | 100 | 98 | 102 | 100 | 100 | 95 | 100 | 94 |
Lung weight | ||||||||
 Terminal lung weight (g) mean | 1.31 | 1.34 | 1.51 ** | 2.37 ** | 0.90 | 0.94 ** | 1.14 ** | 1.87 ** |
  SD | 0.10 | 0.12 | 0.13 | 0.31 | 0.21 | 0.10 | 0.27 | 0.18 |
 Relative lung weight (%) mean | 0.36 | 0.37 | 0.40 ** | 0.65 ** | 0.35 | 0.38 ** | 0.45 ** | 0.79 ** |
  SD | 0.06 | 0.05 | 0.06 | 0.20 | 0.10 | 0.05 | 0.14 | 0.16 |