NAD+ — Research Summary

Research Use Only · Not for Human or Veterinary Use

Nicotinamide adenine dinucleotide — essential coenzyme central to cellular energ

NAD+

An evidence summary of published preclinical research on NAD+. This page is educational and summarizes findings reported in third-party scientific literature. No claims are made regarding safety or efficacy in humans.

Molecular Data

FORMULA C21H27N7O14P2
MOLECULAR WEIGHT 663.43 g/mol
SEQUENCE N/A — dinucleotide coenzyme

Compound Overview

NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in every living cell. It plays essential roles in energy metabolism (mitochondrial electron transport chain), DNA repair (via PARP enzymes), gene expression regulation (via sirtuins), and calcium signaling (via CD38). NAD+ levels decline by approximately 50% between ages 40 and 60, and this decline has been implicated as a fundamental driver of aging across multiple organ systems.

Reported Mechanism (Preclinical)

NAD+ serves as a substrate for three major enzyme families: sirtuins (SIRT1-7, deacetylases that regulate gene expression and metabolism), PARPs (poly-ADP-ribose polymerases involved in DNA repair), and CD38/CD157 (cyclic ADP-ribose hydrolases involved in immune function and calcium signaling). By maintaining NAD+ levels, research suggests these critical repair and regulatory pathways may be preserved during aging.

Mechanisms described above are reported in preclinical (animal and in vitro) literature and have not been established for human use.

Key Research Highlights

  • NAD+ repletion reversed age-associated mitochondrial dysfunction in mouse models (Gomes et al., 2013)
  • Sirtuin activation via NAD+ improved metabolic parameters in aged mice
  • NAD+ supplementation enhanced DNA repair capacity in aging tissues
  • Research linked NAD+ decline to neurodegeneration, cardiovascular disease, and metabolic dysfunction
  • CD38 identified as major NAD+ consumer during aging, suggesting therapeutic targets

Published References

  1. Declining NAD+ induces a pseudohypoxic state disrupting nuclear-mitochondrial communication
    Cell, 2013
  2. NAD+ metabolism and its roles in cellular processes during ageing
    Nat Rev Mol Cell Biol, 2021
  3. NAD+ and sirtuins in aging and disease
    Trends Cell Biol, 2014

Available for Research

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