No, NAD+ is not Vitamin B3, though the two are similar
doi: 10.1038/s41467-021-26850-3 128 FungS.ShirleyM
The King of Antioxidants: Increased glutathione neutralizes free radicals and reactive oxygen compounds, enhancing every system of the body, including the immune system and metabolism, optimizing health and athletic performance
tabacum plants (Kavitha et al., Dehydroascorbate reductase AsA, which is a major anti-oxidant in plants, is oxidized to DHA via successive reversible electron transfers with MDHA as a free radical intermediate
Wouters et al., 2011)
these loci presumably act in part by regulating uric acid production and, in some cases, renal urate disposition