Donation of these methyl groups is part of a small cycle: Resynthesis of methionine is depicted in Devlin, Figure 19.44 The step in which methionine is re-generated requires two important vitamin derivatives: Methyl-cobalamin, a derivative of vitamin B 12 , which donates the methyl group to homocysteine N -methyl-tetrahydrofolate, which donates its methyl group to cobalamin, and allows the reaction to continue
Fathizadeh, N., Ebrahimi, E., Valiani, M., Tavakoli, N., & Yar, M
carnitine physiology Metabolism of valproic acid via beta-oxidation in the mitochondria causes carnitine depletion (explored further above)
The roles of PINK1, Parkin, and mitochondrial fidelity in parkinsons disease
Warnings: Do not exceed the recommended daily dose