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Schlegel RA, Williamson P

One amino acid involved in lysine metabolism, two in tyrosine metabolism, one in tryptophan metabolism, two in methionine, cysteine, S-adenosyl methionine (SAM) and taurine metabolism, and two involved in the urea cycle were increased, while one amino acid involved in creatine metabolism was decreased

-Butyrobetaine is then converted to L-carnitine in a reaction catalyzed by -butyrobetaine dioxygenase, an enzyme that is only expressed in kidney, liver, and brain [40, 41]

Caligiuri M, Murray C, Buchwald D, Levine H, Cheney P, Peterson D, et al

Trimethylamine has a strong fishlike odor

BMJ 374:n1648 Cysique LA, Jakabek D, Bracken SG, Allen-Davidian Y, Heng B, Chow S, Dehhaghi M, Pires AS, Darley DR, Byrne A, Phetsouphanh C, Kelleher A, Dore GJ, Matthews GV, Guillemin GJ, Brew BJ (2022) Post-acute Covid-19 cognitive impairment and decline uniquely associate with kynurenine pathway activation: a longitudinal observational study