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Table 7 Lung weights of male and female rats 24 h and 90 days after a 90-day exposure to Graphistrength© C100

From: Lung inflammation and lack of genotoxicity in the comet and micronucleus assays of industrial multiwalled carbon nanotubes Graphistrength© C100 after a 90-day nose-only inhalation exposure of rats

Mean ± sd 0 mg/m3 0.05 mg/m3 0.25 mg/m3 5.0 mg/m3
MALE
24 h post exposure
Absolute weight (g) 1.50 ± 0.06 1.48 ± 0.14 1.63 ± 0.13 2.21 ± 0.29**
% body weight 0.38 ± 0.03 0.39 ± 0.02 0.41 ± 0.02 0.57 ± 0.05**
90 days post exposure
Absolute weight (g) 1.49 ± 0.08 1.58 ± 0.16 1.56 ± 0.07 2.42 ± 0.30**
% body weight 0.30 ± 0.02 0.32 ± 0.02 0.31 ± 0.03 0.46 ± 0.05**
FEMALE
24 h post exposure
Absolute weight (g) 1.19 ± 0.10 1.05 ± 0.07* 1.26 ± 0.09 1.73 ± 0.18**
% body weight 0.48 ± 0.04 0.46 ± 0.03 0.51 ± 0.04 0.72 ± 0.04**
90 days post exposure
Absolute weight (g) 1.18 ± 0.14 1.20 ± 0.09 1.27 ± 0.14 1.73 ± 0.12**
% body weight 0.38 ± 0.04 0.42 ± 0.03 0.44 ± 0.05** 0.64 ± 0.06**
  1. */**: Dunnett-test based on pooled variance significant <0.05 (*) or <0.01 (**)