polyamine oxidase

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pol·y·am·ine ox·i·dase

an enzyme of liver peroxisomes that uses molecular oxygen to oxidize spermine to spermidine and spermidine to putrescine, in both cases also producing H2O2 and β-aminopropionaldehyde; a part of the catabolic pathway of polyamines.
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Saeki et al., "Polyamine oxidase and acrolein as novel biochemical markers for diagnosis of cerebral stroke," Stroke, vol.