Tocopherol urinary metabolites

Schultz M, Leist M, Petrzika M, Gassmann B, Brigehus-Flohe R. Novel urinary metabolite of alpha-tocopherol, 2,5,7,8-tetramethyl-2(2 -carboxyethyl)-6-hydroxychroman, as an indicator of an adequate vitamin E supply Am J Clin Nutr 1995 62 ... 

Simon, E.J., The metabolism of vitamin E. II. Purification and characterization of urinary metabolites of alpha-tocopherol., J. Biol. Chem. 221, 807-817, 1956. 

GC-MS has also found application for the elucidation of the structures of urinary metabolites of a-tocopherol (8,9) and to distinguish between deuterated tocopherols as part of a study on the bioavailability of a-tocopheryl acetate in humans (170). 

Frank, J., Kamal-Eldin, A., and Traber, M.G., Consumption of sesame oil muffins decreases the urinary excretion of -y-tocopherol metabolites in humans, Ann. N.Y. Acad. Sci., 1031, 365-367, 2004. 

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