3 results for “Reaction Department”
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Medical study · Medical research · 2003
Ascorbic acid modifies the surface of asbestos: possible implications in the molecular mechanisms of toxicity
…consequence of the erosion of the outmost layers while hydration of silica tetrahedra yields new silanol groups. The activity in the Fenton-like reaction (OH from H(2)O(2)) decreases following surface iron depauperation. Conversely…
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Medical study · Medical research · 2001
Free radical generation in the toxicity of inhaled mineral particles: the role of iron speciation at the surface of asbestos and silica
…1.3 to 29 nmol/mg. It also increased one radical reaction, breaking a carbon-hydrogen bond, about 3-fold, while heating in air fully stopped that reaction. The other reaction, hydroxyl radical release from hydrogen…
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Medical study · Medical research · 2005
Potential toxicity of nonregulated asbestiform minerals: balangeroite from the western Alps. Part 3: Depletion of antioxidant defenses
…crocidolite incubation. This effect was not related to any increased content of oxidized glutathione, or to any enhanced efflux of glutathione, suggesting that balangeroite fibers, like crocidolite, might favor the reaction of GSH with other molecules.