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Table 4 Comparison of the morphological MWNT-7 features between the lung and PLF

From: Two-year intermittent exposure of a multiwalled carbon nanotube by intratracheal instillation induces lung tumors and pleural mesotheliomas in F344 rats

 

Lung

PLF

Length

Number of fiber examined

1000

1000

Average length (µm)

4.23 ± 3.4

2.73 ± 1.5*

Structural types

Number of fiber examined

3823

1109

Straight (%)

3696 (96.66)

1090 (98.29*)

Aggregated (%)

121 (3.16)

18 (1.62*)

Branched (%)

6 (0.16)

1 (0.09)

  1. Valules show the number of the fibers or length (Mean ± SD)
  2. Values in parentheses are the percentage of each type of structure; 100 × number of each type of fiber ÷ number of fiber examined
  3. *Significantly different from Lung (length, Student's t-test; rate of the structural types, Fischer's exact test)
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Particle and Fibre Toxicology

ISSN: 1743-8977

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