Skip to main content
. 2024 Jul 19;13(14):4209. doi: 10.3390/jcm13144209

Figure 5.

Figure 5

NO synthesis. In living organisms, NO can be produced by L-arginine through the action of NO synthase (NOS) through the consumption of reduced nicotinamide adenine dinucleotide phosphate (NADPH+) and oxygen that converts L-arginine to L-citrulline with NO production. NOS-independent NO formation can be interpreted as a contingency mechanism, ensuring adequate NO production in situations of limited oxygen supply.