Abstract
In contrast with putrescine (1,4-diaminobutane), which is a substrate of diamine oxidase, monoacetylputrescine is oxidatively deaminated both in vitro and in vivo by monoamine oxidase. The product of this reaction is N-acetyl-gamma-aminobutyrate. The existence of a degradative pathway in mammalian brain for putrescine is shown, which comprises acetylation of putrescine, oxidative deamination of monoacetylputrescine to N-acetyl-gamma-aminobutyrate, transformation of N-acetyl-gamma-aminobutyrate to gamma-aminobutyrate and degradation of gamma-aminobutyrate to CO(2) via the tricarboxylic acid cycle.
MeSH Terms
Amine Oxidase (Copper-Containing)/metabolism
Animals
Brain/metabolism
Carbon Dioxide/biosynthesis
Carbon Radioisotopes
Chromatography, Thin Layer
Citric Acid Cycle
Electrophoresis
Injections
Male
Mass Spectrometry
Mice
Mitochondria/metabolism
Mitochondria, Liver/metabolism
Monoamine Oxidase/metabolism
Putrescine/administration & dosage,analogs & derivatives,metabolism
Rats
Tritium
gamma-Aminobutyric Acid/analogs & derivatives
Chemicals
Carbon Radioisotopes
Tritium
Carbon Dioxide
gamma-Aminobutyric Acid
Amine Oxidase (Copper-Containing)
Monoamine Oxidase
Putrescine
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Seiler N
Al-Therib M J
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23 references, click to expand
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