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  • Title: High levels of plant sterols and cholesterol precursors in cerebrotendinous xanthomatosis.
    Author: Kuriyama M, Fujiyama J, Kasama T, Osame M.
    Journal: J Lipid Res; 1991 Feb; 32(2):223-9. PubMed ID: 2066659.
    Abstract:
    We measured the cholestanol, cholesterol precursor (lathosterol), and plant sterol (campesterol and sitosterol) concentrations of serum and bile in 11 patients with cerebrotendinous xanthomatosis. The mean values of serum cholestanol, lathosterol, campesterol, and sitosterol were, respectively, 8.4-, 2.5-, 2.7-, and 1.4-times higher in the patients than in normal control subjects (n = 26). Cholestanol (6.7-fold) and campesterol (3.7-fold) levels in bile (n = 4) were also elevated in the patients. There was no significant difference of serum sterol levels between patients with coronary artery disease and those without it. Chenodeoxycholic acid treatment for periods ranging from 6 months to 3 years and 4 months lowered serum lathosterol (57.7% reduction) and campesterol (57.8%) levels in parallel with cholestanol (70.8%) level, but the sitosterol level (19.7%) decreased less. Thus, increased levels of cholesterol precursor (lathosterol), plant sterols (campesterol and sitosterol), and cholestanol were found in the serum and bile in cerebrotendinous xanthomatosis. Chenodeoxycholic acid treatment effectively reduced the levels of these sterols, except for sitosterol.
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