n acetylcysteine increases glutathione The Combined Antioxidant Effects of N-Acetylcysteine, Vitamin D3, and from the Intestinal–Neuronal In Vitro Model Glutathione biosynthetic scheme. N-acetyl-L-cysteine (NAC)
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[DOI] [PubMed] [Google Scholar] 296.Hawke R.L., Schrieber S.J., Soule T.A., Wen Z., Smith P.C., Reddy K.R., Wahed A.S., Belle S.H., Afdhal N.H., Navarro V.J., et al
Which common medical procedures involving blood are Prohibited and require a Therapeutic Use Exemption (TUE)

one study (PMID 34324435) on similar peptides for muscle repair

Nehme J, Borghesan M, Mackedenski S, et al

Given that, NNMT overexpression is not bad for KIRC cells on NAD + synthesis through salvage pathway but its probably good for fat storage and maintaining those properties of KIRC cells by consuming NAM
