Acetyl-L-carnitine-d3 is intended for use as an internal standard for the quantification of L-acetylcarnitine by GC- or LC-MS. Acetyl-L-carnitine is an acetylated form of the essential mitochondrial metabolite L-carnitine that is catabolized by plasma esterases into carnitine.1,2,3 Acetyl-L-carnitine facilitates the uptake of acetyl-CoA into mitochondria during fatty acid oxidation, enhances acetylcholine production, and stimulates protein and membrane phospholipid synthesis. In vivo, acetyl-L-carnitine (100 mg/kg) increases mGlu2/3 receptor protein levels and mechanical pain thresholds in a mouse model of chronic inflammatory pain induced by complete Freund's adjuvant.4
1.Vaz, F.M., and Wanders, R.J.A.Carnitine biosynthesis in mammalsBiochem. J.361(Pt 3)417-429(2002) 2.Fu, L., Huang, M., and Chen, S.Primary carnitine deficiency and cardiomyopathyKorean. Circ. J.43(12)785-792(2013) 3.Stieger, B., O'Neill, B., and KrÄhenbÜhl, S.Characterization of L-carnitine transport by rat kidney brush-border-membrane vesiclesBiochemistry Journal309(Pt 2)643-647(1995) 4.Notartomaso, S., Mascio, G., Bernabucci, M., et al.Analgesia induced by the epigenetic drug, L-acetylcarnitine, outlasts the end of treatment in mouse models of chronic inflammatory and neuropathic painMol. Pain13:1744806917697009(2017)