the levels of unesterified methyl sterols , delta 8-dimethylsterol and delta 8-methostenol in particular , were several times higher throughout the 24 hour period in the lipoproteins of the two patient groups than of the controls , were higher in ileal dysfunction than jejunoileal bypass , exhibited a constant diurnal rhythm in the controls but only in the relatively small vldl fraction ( not in the large ldl + hdl ) of the operated groups , and were positively correlated with cholesterol synthesis in the three groups combined ( for methyl sterols in vldl r = 0.740 and in ldl + hdl r = 0.869 ) .
C0023820
lipoproteins
C0023825
vldl