5 results for “Reaction Department”
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Medical study · Medical research · 1997
Biological effects of contaminated silicon carbide particles from a workstation in a plant producing abrasives
…that the radiographic opacities found in two workers employed in the same area of the plant from which the dust tested was taken are due to a reaction by pulmonary interstitial structures to SiC particle inhalation…
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Medical study · Medical research · 2023
Dissolution Reaction and Surface Modification of UICC Amosite in Mimicked Gamble's Solution: A Step towards Filling the Gap between Asbestos Toxicity and Its Crystal Chemical Features
This was a laboratory experiment on fibres, not a study of people. The authors placed 20 mg of UICC amosite asbestos (from the Penge mine, South Africa) in 40 mL of mimicked Gamble's solution, a simulated biological fluid, at pH 4.5 and 37 degrees…
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Medical study · Medical research · 2000
In vitro cleavage by asbestos fibers of the fifth component of human complement through free-radical generation and kallikrein activation
…role in inflammatory reactions characteristic of asbestosis through mechanisms involving iron ions, hydroxyl radicals, and oxidized C5-ike fragments. The ferrous ions present at the asbestos fiber surface trigger this activation and catalyze, via Fenton reaction…
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Medical study · Medical research · 1998
Wollastonite fibers in vitro generate reactive oxygen species able to lyse erythrocytes and activate the complement alternate pathway
…ferric chloride and dithionite. In addition, ROS generation was partially inhibited (by 46-54%) in the reactions performed in the presence of 1,3-dimethyl-2-thiourea (DMTU), a strong hydroxyl radical scavenger. Wollastonite fibers were…
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Medical study · Medical research · 1972
A histochemical study of the asbestos body coating
…after iron extraction were tested by histochemical methods for mucopolysaccharides. The results of the reactions suggest that acid mucopolysaccharides are present in the coating of most bodies. During the formation of the bodies acid mucopolysaccharides might…