Abstract
The reaction of adrenaline autooxidation in an alkaline carbonate buffer followed by formation of superoxide radicals and the product of its oxidation, adrenochrome, which models the quinone pathway of adrenaline metabolism in the body, is accompanied by oxygen consumption. A study of this process by the polarographic method enabled one to apply this reaction to determine the activity of superoxide dismutase and antioxidant properties of biological and chemical compounds; it is based on evaluation of a latent period and the rate of oxygen consumption, which are measured in the presence of examined compounds. It was suggested that known neuroand cardiotoxicity of the quinone products of adrenaline oxidation may be associated not only to their intrinsic properties and reactive oxygen species formed but also local hypoxia of those regions of the cell and tissue where the quinone oxidation of adrenaline occurs.
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