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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Prevention of cholesterol gallstones by lignin and lactulose in the hamster.

The effect on prevention of cholesterol gallstones by a nonfermentable type of fiber, lignin, and a fermentable fiber analogue, lactulose, was studied in hamsters fed an essential fatty acid deficient diet. Control animals had a high incidence of cholesterol gallstones (21 of 24) and lithogenic bile (lithogenic index 1.08). Animals fed lignin had significantly fewer gallstones (11 of 25), improved cholesterol saturation of gallbladder bile, and increased fecal bile acid excretion. Lactulose-fed animals had significantly fewer gallstones (12 of 24) but no significant change in cholesterol saturation of gallbladder bile or in fecal bile acid excretion. Serum cholesterol concentration was reduced, however, and fecal neutral steroid excretion was increased. Gallstones were completely prevented in animals fed both lignin and lactulose (0 of 22), but gallbladder bile cholesterol saturation was not significantly different from the lignin-fed group. Gallbladder bile mucopolysaccharide concentrations did not differ among groups. Lignin appears to prevent cholesterol gallstones in this model by improving cholesterol saturation of bile. The mechanism of action of lactulose is not yet clear.[1]

References

  1. Prevention of cholesterol gallstones by lignin and lactulose in the hamster. Rotstein, O.D., Kay, R.M., Wayman, M., Strasberg, S.M. Gastroenterology (1981) [Pubmed]
 
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