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Nicotinamide Adenine Dinucleotide (NAD) Biosynthesis (NAD Biosynthesis)
- Target
- NAD Biosynthesis
- Molecular classification
- Metabolic Pathway, Enzyme Cascade
01
Overview
Nicotinamide adenine dinucleotide (NAD) biosynthesis refers to the cellular pathways that produce NAD, a vital coenzyme found in all living cells. NAD exists in two forms: oxidized (NAD⁺) and reduced (NADH). It is essential for redox reactions, energy metabolism, DNA repair, and cell signaling. The main pathways for NAD biosynthesis are the de novo pathway (from tryptophan), the Preiss–Handler pathway (from nicotinic acid), and the salvage pathway (from nicotinamide). Supplementation with NAD+ precursors is being explored to improve metabolic health and address age-related decline.
- Other names
- NAD+ BiosynthesisNAD SynthesisNAD+ ProductionNAD Metabolic Pathways
02
Mechanism of action
Supplementation to increase NAD+ levels and restore sirtuin activity.
03
Biological functions
Redox reactionsEnergy metabolismDNA repairCell signalingGene regulationImmune response
04
Disease associations
Age-related declineMetabolic disordersNeurodegenerative diseasesInflammation
05
Safety considerations
Potential for adverse effects with high doses of NAD+ precursorsLong-term effects of NAD+ supplementation are not fully understood
06
Interacting drugs
NAM (Nicotinamide)
2 more in the full profile.
07
Biomarkers
NAD+ levelsSirtuin activity
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