Bile salts and hydrodynamics of bile formation

Détails

ID Serval
serval:BIB_59173B1C75AF
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Bile salts and hydrodynamics of bile formation
Périodique
Journal of Hepatology
Auteur(s)
Cotting  J., Reichen  J.
ISSN
0168-8278 (Print)
Statut éditorial
Publié
Date de publication
01/1989
Volume
8
Numéro
1
Pages
13-21
Notes
Journal Article
Research Support, Non-U.S. Gov't --- Old month value: Jan
Résumé
We report a novel method to assess bile secretory pressure using a Statham pressure transducer. The studies were performed in vivo in male Sprague-Dawley rats under pentobarbital anesthesia. Maximal secretory pressure averaged 21.8 +/- 1.1 (S.D.) cmH2O. The bile accumulated after 10 min of obstruction was 7.7 +/- 2.8 microliters.g-1; assuming a basal biliary dead space of 2.3 microliters.g-1, the distended capacity of the biliary tree averaged 10 microliters.g-1. The small volume of the strain gauge permitted calculation of compliance of the biliary tree which averaged 0.35 +/- 0.12 microliters.cmH2O-1.g-1. Stimulation of bile flow by bile salts reduced the time required to reach maximal bile secretory pressure. Taurocholate but not taurodehydrocholate decreased maximal secretory pressure within minutes, the pressure-time curves showing a new equilibrium between bile formation and regurgitation forces. Both bile flow and bile salt recoveries were decreased by taurocholate but not by taurodehydrocholate. Taurocholate decreased biliary compliance while taurodehydrocholate had no effect. This provides further evidence that taurocholate increases the biliary permeability and suggests that this bile salt also affects the elastic properties of the biliary tree.
Mots-clé
Animals Bile/*metabolism/physiology Bile Acids and Salts/*secretion Biliary Tract/physiology Compliance Male Pressure Rats Rats, Inbred Strains
Pubmed
Web of science
Création de la notice
24/01/2008 16:41
Dernière modification de la notice
20/08/2019 14:12
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