Hepatic uptake and biliary secretion of bile acids in the perfused rat liver.
Pharmacol Res
; 25(1): 51-61, 1992 Jan.
Article
in En
| MEDLINE
| ID: mdl-1738758
ABSTRACT
Hepatic uptake and biliary secretion have been evaluated in the isolated perfused rat liver for cholic, chenodeoxycholic, ursodeoxycholic acid, both free and taurine-conjugated; the physicochemical properties of the bile acids have also been calculated and related to these experimental parameters. Cholic acid disappearance rate from the perfusate was the fastest, followed by that of ursodeoxycholic and chenodeoxycholic; it was also faster for taurine-conjugated bile acids than for their respective unconjugated forms. The recovery in bile was higher for conjugated than for unconjugated bile acids, and among each class, was higher for cholic than for chenodeoxycholic and ursodeoxycholic. The hepatic uptake correlated negatively (r = -0.99) with the bile acid lipophilicity, while the biliary secretion correlated with the solubility of the molecules. These results show the effect of the physicochemical properties of BA on their hepatic handling, at the physiological concentration of BA in the portal blood.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Bile
/
Bile Acids and Salts
/
Liver
Limits:
Animals
Language:
En
Journal:
Pharmacol Res
Journal subject:
FARMACOLOGIA
Year:
1992
Document type:
Article
Affiliation country:
Italy