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Free Radic Biol Med. 1992 Oct;13(4):391-405.

Biochemical and toxicological properties of the oxidation products of catecholamines.

Author information

1
Centro Studio Fisiologia Mitocondriale, CNR, Padova, Italy.

Abstract

The normal catabolism of catecholamines proceeds through enzymatic pathways (monoaminooxidase, catechol-o-methyltranserase, and phenolsulphotransferase). In addition, nonenzymatic oxidative pathways might take place since catechols are readily oxidized. In this review article, the pathways of formation of the oxidation products of catecholamines and their reactions are described. The interactions of these products with different biological systems and their toxicity are examined. Among the reactions known to occur is that with sulfhydryls, which results in either a covalently linked adduct or disulfide production. Another interesting pathway to toxicity involves the oxidation of these catecholamine products by oxygen, with the formation of damaging oxygen-derived species. The action of the oxidation products of catecholamines is outlined, with special attention to the nervous and cardiac systems.

PMID:
1398218
DOI:
10.1016/0891-5849(92)90182-g
[Indexed for MEDLINE]

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