Electron spin resonance evidence for free radical generation in copper-treated vitamin E- and selenium-deficient rats: in vivo spin-trapping investigation.


The ESR spin-trapping technique has been used to investigate free radical generation in copper-challenged rats deficient in vitamin E and/or selenium. Radical adduct excreted in the bile was detected only from copper-challenged rats deficient in both vitamin E and selenium. The phenyl-N-t-butylnitrone radical adduct has hyperfine coupling constants of aN… (More)


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