Abstract
The effect of increased intracellular adenosine 3',5'-monophosphate (cAMP) concentrations on bile acid synthesis in isolated rat hepatocytes was investigated. When the cells were incubated in the presence of glucagon (0.2 μM) and theophylline (1 mM) the observed rise in the level of cAMP was accompanied by an increase in bile acid production. Hepatocyte cAMP concentrations after 1 h of incubation showed a highly significant positive linear correlation with the amounts of bile acid synthesised by the cells during this time. These results suggest that bile acid production is related to the concentration of cAMP in isolated hepatocytes and provide evidence for a role for the cyclic nucleotide in the regulation of bile acid synthesis.
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