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. 2017 Jun 1;12(6):e0178355. doi: 10.1371/journal.pone.0178355

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.