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ARTICLE| Volume 247, ISSUE 21, P6960-6962, November 1972

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The Generation of Superoxide Radical during the Autoxidation of Hemoglobin

Open AccessPublished:November 01, 1972DOI:https://doi.org/10.1016/S0021-9258(19)44679-6
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      The autoxidation of oxyhemoglobin to methemoglobin, at pH 6.8, causes the co-oxidation of epinephrine to adrenochrome. Part of this co-oxidation was due to a hemoglobincatalyzed peroxidation of epinephrine and could be inhibited by catalase. The remainder of the co-oxidation of epinephrine was inhibited by superoxide dismutase. This indicates that the autoxidation of oxyhemoglobin results in the generation of superoxide radicals.

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