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Considering the relationship between toxicity of dust and particle geometry, as exhibited by asbestos, we have examined short-term biological effects of SiC whiskers (SiCW) in vitro and in vivo. Cultured explants of tracheal epithelium were exposed to a range of SiCW concentrations. There were no dramatic effects on ciliary function as measured by an optical spectrum analysis system that provided discrete ciliary frequencies. Particles were swept by ciliary activity into nonciliated regions where foci of extensive cell damage and death were observed with whiskers penetrating epithelial layers into the underlying tissues. Similar necrotic foci were observed in tracheae from rats exposed by intratracheal instillation to SiC whiskers in vivo.
G L Vaughan, and
J R Kennedy, and
S A Trently
January 1989,
Eksperimental'naia onkologiia,
G L Vaughan, and
J R Kennedy, and
S A Trently
February 1970,
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G L Vaughan, and
J R Kennedy, and
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G L Vaughan, and
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G L Vaughan, and
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G L Vaughan, and
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G L Vaughan, and
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G L Vaughan, and
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G L Vaughan, and
J R Kennedy, and
S A Trently
June 1959,
A.M.A. archives of otolaryngology,
G L Vaughan, and
J R Kennedy, and
S A Trently
November 1993,
Environmental research,
