Table 2. BAL fluid cell counts (x103) (mean ±SEM) in mice at day 1, 3, 28 and 90 post exposure to VC (0.1% TW80), GO, rGO or Printex90 at doses 0, 18, 54 or 162 μg/mouse (n = 7–8).
Dose | Neutrophilsa | Macrophagesa | Eosinophils | Lymphocytes | Totala | |
---|---|---|---|---|---|---|
Day 1 | ||||||
VC | 0 | 8.5 ± 2.6 | 63 ± 19.4 | 0.2 ± 0.1 | 1 ± 0.8 | 72.6 ± 20.7 |
GO | 18 | 219.5 ± 18.7***# | 59.8 ± 5.6 | 5.7 ± 3.9 | 1.4 ± 0.9 | 294.7 ± 20.7*** |
54 | 94.9 ± 6.4***# | 29.1 ± 4.1* | 0.5 ± 0 | 0 ± 0 | 123.9 ± 8.8*** | |
162 | 120.7 ± 60.6*** | 92.4 ± 8.5 | 96.2 ± 93.6 | 0 ± 0 | 309.3 ± 109.7*** | |
rGO | 18 | 5.1 ± 1.4 | 44.4 ± 9.2 | 0.5 ± 0.3 | 0.5 ± 0.2 | 20.2 ± 10.5 |
54 | 10 ± 1.8 | 61.7 ± 7 | 1.4 ± 0.2 | 0.4 ± 0.2 | 73.5 ± 7.8 | |
162 | 43.3 ± 7.5*** | 68.7 ± 9.6 | 5.3 ± 2.5 | 0.1 ± 0.1 | 117.4 ± 16.1 | |
P90 | 162 | 105.6 ± 19.5*** | 24.4 ± 9.4 | 5.5 ± 2.3 | 0 ± 0 | 135.6 ± 17.1* |
Day 3 | ||||||
VC | 0 | 0.5 ± 0.2 | 32.9 ± 3.9 | 0 ± 0 | 0 ± 0 | 33.5 ± 3.9 |
GO | 18 | 38.8 ± 8.6***# | 78.7 ± 6*** | 51.3 ± 14.6 | 2.9 ± 1 | 171.7 ± 22.4*** |
54 | 324.7 ± 100.8***# | 171.2 ± 36*** | 10.8 ± 9.7 | 8.7 ± 2.2 | 515.5 ± 141.6*** | |
162 | 574.4 ± 142.9***# | 149.6 ± 15.9*** | 0.6 ± 0.6 | 2.2 ± 1.4 | 727 ± 158.8*** | |
rGO | 18 | 5.7 ± 4.9 | 43.2 ± 5.1 | 12.5 ± 12.2 | 0.9 ± 0.8 | 62.2 ± 21.9 |
54 | 3 ± 1 | 49.4 ± 7.1 | 1.6 ± 0.4 | 0.3 ± 0.2 | 54.2 ± 7.9 | |
162 | 5.3 ± 1.6* | 50.1 ± 7.1 | 11.6 ± 5.8 | 0.2 ± 0.1 | 67.1 ± 11.5* | |
P90 | 162 | 101.3 ± 22.3*** | 55.7 ± 7.2* | 5.5 ± 2 | 0.8 ± 0.6 | 163.3 ± 26.4*** |
Day 28 | ||||||
VC | 0 | 0.9 ± 0.3 | 17.7 ± 5.4 | 0 ± 0 | 0.1 ± 0.1 | 18.7 ± 5.5 |
GO | 18 | 0.7 ± 0.2 | 45 ± 2.8** | 0 ± 0 | 1 ± 0.5 | 46.7 ± 2.9** |
rGO | 18 | 2.1 ± 0.9 | 53.1 ± 10.5* | 3 ± 1.7 | 0.1 ± 0.1 | 58.3 ± 11.1 |
54 | 1.9 ± 0.6 | 55 ± 5.6** | 0.5 ± 0.3 | 0.3 ± 0.2 | 57.8 ± 5.6* | |
162 | 6.5 ± 1.8 | 57.2 ± 10.2** | 0 ± 0 | 0.5 ± 0.2 | 64.2 ± 11.2* | |
P90 | 162 | 20.4 ± 6.9** | 78.9 ± 12.4** | 0 ± 0 | 3.9 ± 1.5 | 103.2 ± 17.2** |
Day 90 | ||||||
VC | 0 | 0.3 ± 0.1 | 43.3 ± 5 | 0 ± 0 | 0.1 ± 0 | 43.6 ± 5 |
GO | 18 | 0.9 ± 0.2 | 43.7 ± 4.9 | 0 ± 0 | 0.4 ± 0.1 | 45 ± 5.1 |
rGO | 18 | 3.2 ± 1.2** | 37.3 ± 4.5 | 0.2 ± 0.1 | 0.4 ± 0.1 | 41.2 ± 5.7 |
54 | 9.5 ± 3.8*** | 40.4 ± 7.5 | 0.1 ± 0.1 | 0.7 ± 0.3 | 50.6 ± 7.2 | |
162 | 7 ± 1.6*** | 48.9 ± 4 | 0 ± 0 | 0.4 ± 0.2 | 56.3 ± 4.6 | |
P90 | 162 | 19.2 ± 4.9*** | 62.6 ± 5.5* | 0.2 ± 0.1 | 4.2 ± 0.9 | 86.1 ± 9.5*** |
Mean ± SEM (n = 7–8).
a Statistical analysis was performed on neutrophils, macrophages and total cells.
*, ** and ***: Statistically significantly different from corresponding VC at level p < 0.05, p < 0.01, p < 0.001 level, respectively.
#: Statistically significantly different from corresponding rGO group at level p <0.001.