Vitamin E deficiency in adults with chronic liver disease.

In order to determine the frequency of vitamin E deficiency in adults with chronic liver disease, we measured serum vitamin E concentrations and calculated the ratio of serum vitamin E to total serum lipids (E/lipids) in forty-two patients with primary biliary cirrhosis (PBC) (Group A), fifteen patients with other forms of chronic liver disease (Group B), and twenty-five healthy adult control subjects (Group C). Although the mean serum vitamin E concentration did not differ significantly among the three groups, the ratio of serum vitamin E/lipids was significantly lower in Group A than Groups B and C. Vitamin E deficiency, as defined by the ratio of serum vitamin E/lipids below 0.8 mg/gm, was present in seven (17%) Group A and one (7%) Group B patients. Serum cholylglycine, sulfated lithocholate conjugates, and bilirubin were significantly higher and the mean duration of symptomatic primary biliary cirrhosis was significantly longer (6.6 vs 2.3 years) in the vitamin E-deficient compared to the vitamin E-sufficient Group A patients. Our study demonstrates that vitamin E deficiency may occur in adults with severe, prolonged cholestatic liver disease.