Abstract
Monoamine oxidase (MAO, EC 1.4.3.4) and catechol-O-methyltransferease (COMT, EC 2.1.1.6) are the two primary enzymes responsible for the first step of the metabolism of the catecholamines epinephrine, norepinephrine and dopamine. Catecholamines and their methylated metabolites, produced by COMT, are metabolized to the corresponding aldehyde intermediates by MAO. In the subsequent second step these aldehydes are removed through either their oxidation to acids by aldehyde dehydrogenase (EC 1.2.1.3) or their reduction to alcohols by aldehyde reductase (Kopin, 1985). Here, we focus on the metabolism of norepinephrine and summarize evidences that aldose reductase is the key enzyme responsible for the metabolism of norepinephrine.
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Sato, S., Kawamura, M., Eisenhofer, G., Kopin, I.J., Fujisawa, S., Kador, P.F. (1999). Aldo-Keto Reductases in Norepinephrine Metabolism. In: Weiner, H., Maser, E., Crabb, D.W., Lindahl, R. (eds) Enzymology and Molecular Biology of Carbonyl Metabolism 7. Advances in Experimental Medicine and Biology, vol 463. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4735-8_57
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DOI: https://doi.org/10.1007/978-1-4615-4735-8_57
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