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Dietary Phytochemicals As Inhibitors Of Primary Amine Oxidase, Padraig Shanahan, Jeffrey O'Sullivan, Keith F. Tipton, Gemma Kinsella, Barry J. Ryan, Gary T. Henehan
Dietary Phytochemicals As Inhibitors Of Primary Amine Oxidase, Padraig Shanahan, Jeffrey O'Sullivan, Keith F. Tipton, Gemma Kinsella, Barry J. Ryan, Gary T. Henehan
Articles
Phytochemicals such as methylxanthines, catechins and polyphenols show health benefits in a range of diseases although their mechanism of action is not fully understood. Primary Amine Oxidase (PrAO) is widely recognised as a therapeutic drug target for the treatment of inflammatory, vascular and neurodegenerative diseases. Previous work in our laboratories showed that caffeine inhibited bovine PrAO activity with a Ki of 1.0mM. In the present study we examined a range of methylxanthines and catechins as inhibitors of bovine PrAO. The methylxanthines tested were caffeine, paraxanthine, theophylline, theobromine and 7-methylxanthine. Of these, only theobromine was an inhibitor with an IC50 of …