Definition of "paraoxonase" [paraoxonase]

• Any of a group of enzymes that act as antioxidants (noun)

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• "Newborns 'levels of an enzyme called paraoxonase 1 (PON1), critical to the detoxification of organophosphate pesticides, average one-third or less than those of the babies' mothers."
• "Researchers looked at blood samples taken from these women and measured them for levels of an enzyme known as paraoxonase 1, or PON1, which is able to break down the toxic metabolites of organophosphate pesticides."
• "Both anti-Apo A-1 and anti-HDL are associated with diminished activity of the antioxidant enzyme paraoxonase, which could increase oxidation of low-density lipoprotein, contributing to atheroma development."