4 results for “Reaction Department”
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Medical study · Medical research · 1993
Radical oxidation reactions of the purine moiety of 2'-deoxyribonucleosides and DNA by iron-containing minerals
…was investigated by using a double experimental approach. One involved the electron spin resonance spin-trapping measurement of organic radicals obtained by the reaction of activated oxygen species, released upon incubation of the minerals in phosphate…
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Medical study · Medical research · 1986
Studies on surface properties of asbestos. II. Role of dimensional characteristics and surface properties of mineral fibers in the induction of pleural tumors
…mineral and therefore the nature of active surface sites, and the aspect ratio of the particle. These two parameters can intervene in a mechanism of model reaction involving the basic properties of lateral faces of fibers.
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Medical study · Medical research · 1987
The stimulatory effects of asbestos on NADPH-dependent lipid peroxidation in rat liver microsomes
…It is not inhibited by superoxide dismutase, catalase and mannitol, indicating that oxygen radicals are not involved in the reaction. It is also not inhibited by desferrioxamine, indicating that it is not due to a release…
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Medical study · Medical research · 1990
Microsomal lipid peroxidation and oxy-radicals formation are induced by insoluble iron-containing minerals
…two processes are mainly due to the presence of redox active iron at the surface of the solid particles and thus are greatly inhibited by desferrioxamine, a strong iron chelator. However, these reactions are not correlated.