nicotinamide n oxide

Nicotinamide N-oxide (Nicotinamide 1-oxide) is recognized as an in vivo metabolite of nicotinamide which is a precurser of nicotinamide-adenine dinucleotide (NAD+) in animals. The enzyme that catalyzes the reduction of nicotinamide N-oxide to nicotinamide in the liver is xanthine oxidase.

1-Methylnicotinamide is the active metabolite of nicotinamide, formed by nicotinamide N-methyltransferase. 1-Methylnicotinamide induces the secretion of nitric oxide by human umbilical vein endothelial cells (HUVECs) in a concentration-dependent manner. When administered at a dose of 30 mg/kg, it can increase the level of 6-keto-prostaglandin F1α in rat plasma and inhibit collagen-induced thrombosis at the same dose.