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  • Title: Characterisation of rat hepatocyte monolayers for investigation of the metabolism of bile salts.
    Author: Ford RP, Botham KM, Suckling KE, Boyd GS.
    Journal: Biochim Biophys Acta; 1985 Sep 11; 836(2):185-91. PubMed ID: 4027263.
    Abstract:
    Rat hepatocyte monolayers were maintained for periods up to 24 h during which time their viability was greater than 85%. Using specific radioimmunoassays, the hepatocyte monolayers were shown to synthesise conjugated cholic, chenodeoxycholic and beta-muricholic acids. Feeding the bile salt sequestrant, cholestyramine, to donor animals increased synthesis of the major bile salt conjugates by the cells. Incubation of hepatocyte monolayers with bovine serum albumin decreased total synthesis of the three bile acids measured, but increased the amount of conjugated chenodeoxycholic acid detected. In order to test whether the effect of bovine serum albumin on bile salt synthesis was due to binding of bile salts, hepatocyte monolayers were incubated with antiserum to conjugated chenodeoxycholic acid. This treatment increased conjugated chenodeoxycholic acid production but had no effect on the other bile salt conjugates. It is concluded that the increase in conjugated chenodeoxycholic acid synthesis seen with bovine serum albumin and antiserum to conjugated chenodeoxycholic acid is caused by binding of the bile salt in the medium.
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