Biopersistence of Man-Made Vitreous Fibers and Crocidolite Asbestos in the Rat Lung Following Inhalation
نویسندگان
چکیده
منابع مشابه
Biopersistence of man-made vitreous fibers and crocidolite asbestos in the rat lung following inhalation.
This study investigated possible relationships between fiber bio-persistence in the lung and previously observed differences in pulmonary toxicity between asbestos and man-made vitreous fibers (MMVF) following inhalation exposure. Fischer 344/N rats were exposed nose only, 6 hr/day for 5 days to 30 mg/m3 MMVF (two fiberglass compositions, rock wool, or slag wool) or to 10 mg/m3 crocidolite asbe...
متن کاملBiopersistences of man-made vitreous fibers and crocidolite fibers in rat lungs following short-term exposures.
Biopersistence of commercial man-made vitreous fibers (MMVF) and crocidolite were studied in Fischer 344 rats. MMVF used were size-selected to be rat-respirable, and rats were exposed nose-only 6 h/day for 5 days to gravimetric concentrations (30 mg/m3) of two fiber glass compositions--a rockwool, and a slagwool--or to 10 mg/m3 of long-fibered crocidolite, or to filtered air. Animals were sacri...
متن کاملRelationship between lung biopersistence and biological effects of man-made vitreous fibers after chronic inhalation in rats.
This article describes the relationship between fiber biopersistence and the chronic toxicity of different chemical compositions of man-made vitreous fibers (MMVF) in the lung. Rats were exposed in "nose-only" inhalation chambers, 6 hr/day, 5 days/week, for 24 months to aerosol concentrations of 30 mg/m3 containing comparable fiber numbers and similar dimensions of fibrous glass (FG) or refract...
متن کاملBiopersistence of man-made vitreous silicate fibers in the human lung.
There is now a substantial body of experimental data on the pulmonary biopersistence of man-made vitreous silicate fibers (MMVSF), but human data are seriously lacking. Our knowledge in this field is essentially limited to a few reports of measurements of fibers retained in lung tissue samples taken at autopsy from workers manufacturing these products. Three types of exposure were studied: fibr...
متن کاملBiological durability and oxidative potential of man-made vitreous fibres as compared to crocidolite asbestos fibres.
In this study we investigated relationships between redox properties and biodurability of crocidolite asbestos fibres and three different man-made vitreous fibres (MMVF): traditional stone wool fibres (MMVF 21), glass fibres (MMVF 11) and refractory ceramic fibres (RCF). Each fibre type was incubated up to 22 weeks in four different incubation media: gamble solution (GS) pH 5.0 and pH 7.4, repr...
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ژورنال
عنوان ژورنال: Toxicological Sciences
سال: 1996
ISSN: 1096-6080,1096-0929
DOI: 10.1093/toxsci/29.2.267