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. 1979 Jan-Feb;52(1):77–82.

Itch in Liver Disease: Facts and Speculations

Cameron N Ghent, Joseph R Bloomer
PMCID: PMC2595714  PMID: 452625

Abstract

Pruritus in hepatobiliary disease is commonly believed to be caused by retention of bile acids with their sequestration in the skin. HOwever, we have recently demonstrated that skin levels of bile acids in patients with cholestasis correlate poorly with pruritus. In this report, we present additional data concerning the relationship of pruritus to bile acid retention: (1) the urinary excretion of sulfated and nonsulfated bile acids was not significantly different in patients with cholestasis who itched compared to those who did not; (2) one patient with itch associated with a liver abscess had normal levels of bile acids in serum, skin, and urine; (3) patients with primary biliary cirrhosis who itched had lower serum bile acid levels than patients with mechanical biliary obstruction who did not itch.

These studies support our premise that pruritus in hepatobiliary diseases is not directly related to bile acid retention. They suggest that the type of cholestatic disorder, and not simply the magnitude of the cholestasis, as estimated by the elevation of serum bile acids, is important. We propose that the agent responsible for pruritus is produced in response to cholestasis, possibly through activation of the alternate pathway of bile acid synthesis. Properties of the hypothetical pruritogen are discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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