Mechanism of Action and Target Biology NNMT Enzyme and Function: Nicotinamide N-methyltransferase (NNMT) catalyzes the SAM-dependent methylation of nicotinamide: Reaction: Nicotinamide + SAM 1-methylnicotinamide (1-MNA) + S-adenosylhomocysteine (SAH) Expression: Liver, adipose tissue (particularly visceral), smooth muscle, some neurons Regulation: Increased expression in obesity, diabetes, aging, certain cancers Substrates consumed: Nicotinamide (NAD+ precursor) and SAM (methyl donor) 5-Amino-1MQ Inhibition Mechanism: Competitive inhibitor with respect to nicotinamide substrate IC: Submicromolar range for NNMT enzyme Selectivity: Minimal inhibition of other methyltransferases at relevant concentrations Result: Increased intracellular nicotinamide availability for NAD+ salvage pathway Downstream Effects of NNMT Inhibition: 1
GSSG is an important intermediate in the redox cycle of glutathione and is involved in various cellular processes
topical studies in cosmetic research employ 15% concentrations
This comprehensive approach integrates nutrition, exercise, and supplements to optimize results
While additional measurements covering a broader array of oxidative stress markers would have offered a more comprehensive understanding, the current results highlight the feasibility and potential clinical utility of tracking oxidative stressrelated pathways in PCC and post-infectious recovery
