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[DOI] [Google Scholar] 62.Frew A.J., Lindemann R.K., Martin B.P

[PubMed] [Google Scholar] 121.Li L., Ameri A., Wang S., Jansson K., Casey O., Yang Q., Beshiri M.L., Fang L., Lake R.G., Agarwal S., et al

Members of the glutamine amidotransferase (GATase) and glutamine-dependent nitrilase families can produce ammonia via glutamine hydrolysis
Finally, a 2025 study by Degrave et al

A study by Zhang et al [213]

More importantly, the patients receiving the NAD+ precursors demonstrated notable within-group improvements in the most common Long COVID symptoms, including severe fatigue, sleep quality disturbances, and cognitive dysfunction
