Xanthine oxidase catalyzes anaerobic transformation of organic nitrates to nitric oxide and nitrosothiols: characterization of this mechanism and the link between organic nitrate and guanylyl cyclase activation

Organic nitrates have been used clinically in the treatment of ischemic heart disease for more than a century. Recently, xanthine oxidase (XO) has been reported to catalyze organic nitrate reduction under anaerobic conditions, but questions remain regarding the initial precursor of nitric oxide (NO)...

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