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Table 2 Summary of inflammatory cell counts, LDH, total protein, and inflammatory mediators at 24 h after intratracheal instillation of NPs

From: Response-metrics for acute lung inflammation pattern by cobalt-based nanoparticles

BALF measure

VEHPBS

Co3O4 dose (μg/rat)

CoO dose (μg/rat)

40

100

400

40

100

400

Total cells (× 105)

10.95 ± 1.42

23.60 ± 3.64

20.48 ± 5.59

45.60 ± 7.71***

18.90 ± 2.40

30.53 ± 0.39

23.25 ± 4.10

Macrophages (× 105)

10.34 ± 1.19

23.21 ± 3.55

16.67 ± 4.63

19.82 ± 3.27

17.58 ± 1.81

24.46 ± 2.64*

11.83 ± 3.03

Neutrophils (× 105)

0.49 ± 0.39

0.38 ± 0.10

3.79 ± 3.13

25.65 ± 4.80***

1.18 ± 1.06

4.91 ± 2.02

8.02 ± 1.85

Eosinophils (× 105)

0.07 ± 0.02

0.00 ± 0.00

0.01 ± 0.01

0.09 ± 0.05

0.10 ± 0.10

1.16 ± 0.76

3.37 ± 1.23**

Lymphocytes (× 105)

0.05 ± 0.05

0.02 ± 0.02

0.00 ± 0.00

0.05 ± 0.05

0.03 ± 0.03

0.00 ± 0.00

0.04 ± 0.04

LDH (fold vs control)

1.00 ± 0.05

1.23 ± 0.10

1.62 ± 0.17

3.47 ± 0.15***

2.35 ± 0.08***

5.41 ± 0.22***

9.21 ± 0.30***

Total protein (μg/mL)

301 ± 5

118 ± 14

335 ± 116

253 ± 18

99 ± 5

1104 ± 77*

3767 ± 667***

CINC-3 (pg/mL)

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

110.4 ± 39.4**

0.00 ± 0.00

27.3 ± 27.3

0.00 ± 0.00

IL-6 (pg/mL)

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

0.00 ± 0.00

123.4 ± 43.6

982.0 ± 349.4***

Eotaxin (pg/mL)

5.7 ± 1.2

4.5 ± 1.5

67.4 ± 57.4

22.5 ± 10.6

4.5 ± 1.8

265.7 ± 68.9

2963.9 ± 870.7***

IL-13 (pg/mL)

17.7 ± 1.9

22.6 ± 4.2

28.9 ± 4.5

16.9 ± 6.0

35.8 ± 4.9

49.0 ± 9.7

108.5 ± 15.6***

  1. Data were presented as mean ± SEM. * p < 0.05, ** p < 0.01, and *** p < 0.001, statistically different from vehicle control (VEHPBS)
  2. VEHPBS, Ca2+-and Mg2+-free PBS was used as VEH for NPs; LDH, lactate dehydrogenase; CINC-3, cytokine-induced neutrophil chemoattractant-3