Description

Overview

NAD+ (nicotinamide adenine dinucleotide) is an essential coenzyme found in all living cells. It participates in oxidation-reduction reactions that support ATP production and also serves as a substrate for enzymes such as sirtuins, PARPs, and CD38. Research interest centers on how cellular NAD+ availability changes with age, metabolic stress, DNA damage, inflammation, and mitochondrial dysfunction. NAD+ is not a peptide; it is a cellular-metabolism research compound.

How It Works

Redox metabolism: NAD+/NADH cycling transfers electrons in glycolysis, the TCA cycle, and oxidative phosphorylation.
Sirtuin signaling: Sirtuins consume NAD+ while regulating protein deacetylation and metabolic stress responses.
DNA-repair signaling: PARP enzymes use NAD+ during DNA-damage responses, linking NAD+ availability to cellular repair and stress.

Research Areas

Mitochondrial energy metabolism
Cellular aging
DNA-damage response
Sirtuin and PARP biology

Research / Study Context

Human metabolism research: Studies commonly measure NAD metabolites, precursor supplementation, mitochondrial endpoints, and metabolic markers.
Cell and animal research: Models examine NAD depletion/repletion, sirtuins, DNA repair, and age-related metabolic changes.

Key Research Findings

NAD+ is fundamental to cellular redox and signaling biology.
Age- and disease-associated changes in NAD metabolism are actively researched.
Evidence for specific delivery routes or anti-aging outcomes is separate from the basic biology of NAD+.