Tumorigenic effect of fibrous dust in experimental animals | Zendy

F Pott | Zendy; Felix Huth | Zendy; K. H. Friedrichs | Zendy

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Tumorigenic effect of fibrous dust in experimental animals

Author(s) -

F Pott,

Felix Huth,

K. H. Friedrichs

Publication year - 1974

Publication title -

environmental health perspectives

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.257

H-Index - 282

eISSN - 1552-9924

pISSN - 0091-6765

DOI - 10.1289/ehp.749313

Subject(s) - chrysotile , gypsum , asbestos , actinolite , carcinogen , mesothelioma , chemistry , materials science , composite material , quartz , epidote , organic chemistry , chlorite

Fibrous dusts (chrysotile, glass fibers, nemalite, palygorscite, and gypsum) and granular dusts (actinolite, biotite, hematite, pectolite, sanidine, and talcum) were injected intraperitoneally into rats. The fibrous dusts (other than gypsum) resulted in a high incidence of mesothelioma (30 - 67%). Gypsum produced only 5% and granular dusts none at all. It is suggested that the fibrous shape leads to a high multiplication rate of cells and predisposes to tumor formation. Fibrosis, in the other hand, does not so predispose. Milled chrysotile with 99.8% fibers than 5 mum in length are carcinogenic in our experience. The carcinogenicity of glass fibers in our experiments may have significance for occupational situations.

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