Title : Cafestol, the cholesterol-raising factor in boiled coffee, suppresses bile acid synthesis by downregulation of cholesterol 7 alpha-hydroxylase and sterol 27-hydroxylase in rat hepatocytes.

Pub. Date : 1997 Nov

PMID : 9409294






4 Functional Relationships(s)
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1 Cafestol, the cholesterol-raising factor in boiled coffee, suppresses bile acid synthesis by downregulation of cholesterol 7 alpha-hydroxylase and sterol 27-hydroxylase in rat hepatocytes. cafestol cytochrome P450 family 7 subfamily A member 1 Rattus norvegicus
2 Dose-dependent decreases of bile acid mass production and cholesterol 7 alpha-hydroxylase and sterol 27-hydroxylase activity were found, showing a maximal reduction of -91%, -79%, and -49% respectively, at a concentration of 20 micrograms/mL cafestol. cafestol cytochrome P450 family 7 subfamily A member 1 Rattus norvegicus
3 The mixture of cafestol/kahweol/isokahweol was less potent in suppression of bile acid synthesis and cholesterol 7 alpha-hydroxylase. cafestol cytochrome P450 family 7 subfamily A member 1 Rattus norvegicus
4 We conclude that cafestol suppresses bile acid synthesis by downregulation of cholesterol 7 alpha-hydroxylase and of, to a lesser extent, sterol 27-hydroxylase in cultured rat hepatocytes, whereas kahweol and isokahweol are less active. cafestol cytochrome P450 family 7 subfamily A member 1 Rattus norvegicus