MMVF


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MMVF

(MultiMedia Video File) See MVDisc.
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RELEVANCE TO CLINICAL OR PROFESSIONAL PRACTICE: This case study points out the possible participation of other components (coating materials), beyond MMVFs, in the etiology of pneumoconiosis.
The uses of MMVFs are mainly related to thermal and acoustic insulation (Hesterberg and Hart 2001).
He had been working as a laminator of glass-wool fibers and coating materials for 7 years, without respiratory protection, suggesting excessive occupational exposures to MMVFs and coating materials.
Dissolution of MMVFs in the lung environment, well demonstrated in animal studies (Adamson et al.
A total of 335 MMVF 10a profiles, which are electron-dense and easy to recognize, were analyzed on micrographs of ultrathin sections (Table 1).
The microscopic analyses of inhaled and deposited MMVF 10a in hamster lungs described here show that in the conducting airways almost all fibers were submersed in the aqueous lining layer, whereas in the alveoli only about one-third of the fibers were completely covered by lining layer material.
The calculation of the forces that are exerted on cylindrical MMVF 10a after their deposition on a liquid surface is somewhat more difficult than that for forces exerted on microspheres, because of the complex wetting behavior.
Nevertheless, if the particulate fraction of MMVF 10a is cleared by the blood circulation, organs beyond the lungs should be carefully investigated after fiber exposure.