EFFICACY OF WATER-SOLUBLE VITAMIN-E IN THE TREATMENT OF VITAMIN-E MALABSORPTION IN SHORT-BOWEL SYNDROME

A water-soluble form of vitamin E, tocopheryl succinate polyethylene glycol 1000 (TPGS), was used as an oral vitamin E supplement in a 71-y-old patient with severe fat malabsorption and vitamin E deficiency secondary to short-bowel syndrome. An absorption test with deuterium-labeled TPGS demonstrated that TPGS was absorbed and the released alpha-tocopherol was transported normally in lipoproteins. The disappearance portion of the deuterated alpha-tocopherol curves were parallel to those in control subjects, suggesting normal metabolic turnover of alpha-tocopherol. Long-term (3 y) supplementation with orally administered TPGS (10360 mg or 4000 IU/d) maintained normal plasma alpha-tocopherol concentrations, raised adipose tissue alpha-tocopherol concentrations, and prevented further progression of the neurological abnormalities resulting from vitamin E deficiency. Thus, TPGS can be an effective vitamin E supplement in short-bowel syndrome despite severe fat malabsorption.