In neuronal senescence model studies, the active ingredient of the product can cross the blood-brain barrier (and act directly on neurons in vitro), increase NAD+ levels in nerve cells, protect mitochondrial function, reduce neuronal apoptosis, and promote the synthesis and release of neurotransmitters (such as dopamine and acetylcholine), thereby improving signal transduction in nerve cells
This reaction has two consequences studied in the literature: it consumes S-adenosyl methionine, the cells principal methyl donor, and it removes nicotinamide from the salvage pathway that regenerates NAD+
Measurements using body composition methods (DEXA, bioimpedance, caliper) are more informative than scale weight alone, as AOD-9604 may preserve lean tissue while selectively reducing fat mass
Game changer
Hair grows in cycles, so meaningful changes are unlikely to be measured after only a few days
The list below reflects how the published rodent studies were set up and what is known about NNMT in human biology