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Cholesterol fed guinea pigs develop a hemolytic anemia accompanied by high cholesterol concentrations in the liver, plasma,
and red cells. We have studied the bile acid metabolism of guinea pigs fed a diet with or without cholesterol in a search
for the factor(s) which prevent adequate control of their body cholesterol pool and, therefore, its pathological consequences.
The results show that in the cholesterol fed guinea pig the synthesis (and excretion) of bile acids was at least three times
greater than in controls. This is the result of a doubling of the fractional turnover rate and a smaller increase in the pool
size. The major increase of the bile acid pool was in the liver. The main bile acid in gall bladder bile and small intestines
was chenodeoxycholic acid, with smaller amounts of 7-ketolithocholic and ursodeoxycholic acids. In the caecum, large intestines,
and feces, the major bile acid was lithocholic acid. 相似文献
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