Reaction: Isosorbide mononitrate to 1 product

Reaction
Reaction type
Not Available
Direction
Major circulating metabolite?
Yes
Spontaneous?
No
Activity
active
References
  1. Munzel T, Steven S, Daiber A: Organic nitrates: update on mechanisms underlying vasodilation, tolerance and endothelial dysfunction. Vascul Pharmacol. 2014 Dec;63(3):105-13. doi: 10.1016/j.vph.2014.09.002. Epub 2014 Oct 14. [Article]
  2. Kenkare SR, Benet LZ: Tolerance to nitroglycerin in rabbit aorta. Investigating the involvement of the mu isozyme of glutathione S-transferases. Biochem Pharmacol. 1996 May 17;51(10):1357-63. doi: 10.1016/0006-2952(96)00058-5. [Article]
Comments
Based on the findings of several studies, isosorbide mononitrate is bioactivated by hepatic CYP P450 enzymes, xanthine oxidoreductase (XO), mu isozyme of glutathione-S-transferase (GST), or cytosolic aldehyde dehydrogenase isoforms (cytALDH = 1A1, 3A1 or cytosolic ALDH-2).[A190732]
Enzymes
EnzymeKmVmaxRole
Cytochrome P450 3A SubfamilyNot AvailableNot Availableimplied
Glutathione S-transferase Mu 1Not AvailableNot Availableimplied
Xanthine dehydrogenase/oxidaseNot AvailableNot Availableimplied
Alcohol dehydrogenase class-3Not AvailableNot Availableimplied