Interaction of 1-hydroxyethyl radical with antioxidant enzymes.

  title={Interaction of 1-hydroxyethyl radical with antioxidant enzymes.},
  author={Susana Puntarulo and Detcho A. Stoyanovsky and Arthur I. Cederbaum},
  journal={Archives of biochemistry and biophysics},
  volume={372 2},
There is considerable interest in the role of the 1-hydroxyethyl radical (HER) in the toxic effects of ethanol. The goal of this study was to evaluate the effects of HER on classical antioxidant enzymes. The interaction of acetaldehyde with hydroxylamine-o-sulfonic acid has been shown to produce 1, 1'-dihydroxyazoethane (DHAE); this compound appears to be highly unstable, and its decomposition leads to the generation of HER. Addition of DHAE into a solution of PBN led to the appearance of the… CONTINUE READING