Skip to main content

Table 2 Incidence of bronchiolo-alveolar cell hyperplasia and lung tumors in rats sacrificed at week 104

From: Comparative carcinogenicity study of a thick, straight-type and a thin, tangled-type multi-walled carbon nanotube administered by intra-tracheal instillation in the rat

 

Vehicle

MWCNT-A

MWCNT-B

Crocidolite

 

0.5 mg

1.0 mg

0.5 mg

1.0 mg

1.0 mg

Animals examined

19

20

20

20

20

20

Mean Survival (wks)

98.2

102.2

100.4

95.6

100.0

97.9

Hyperplasia

0

3

2

6*

9**

4

Adenoma

1

4

1

4

5

3

Carcinoma

0

1

3

1

2

0

Adenoma, Carcinoma

Combined

1

5

4

5

7*

3

  1. *,** p < 0.05, p<0.01