Abstract
This study was undertaken to determine whether S-adenosyl-L-methionine (SAMe) changes the lipid composition and fluidity of erythrocyte membranes in chronic liver disease. SAMe was administered intravenously at a daily dose of 600 mg for 2 weeks to 10 patients; 6 patients with cirrhosis and four with primary biliary cirrhosis. The elevated free cholesterol to phospholipid molar (C/PL) ratio of the erythrocyte membranes of the patients (0.857 +/- 0.018) significantly decreased after the administration of SAMe (1 week, 0.823 +/- 0.021; 2 weeks, 0.823 +/- 0.013). In all of the four patients whose erythrocyte membrane fluidity was measured, fluidity improved with the administration of SAMe and correlated with the C/PL ratio of the membranes. These results suggest that SAMe decreases the C/PL ratio of erythrocyte membranes and thus improves membrane fluidity in chronic liver disease.
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