Author:
Zingg Walter,Rappaport Aron M.,Leibel Bernard S.
Abstract
The application of insulin to the liver in rats is followed by an increase of the insulin concentration in the bile. The pathway of insulin from the liver surface to the bile may include a secretory process by the hepatic cells, or it may bypass the hepatic cells, using direct anatomical pathways from blood and lymph to bile. The concentration of insulin in arterial and venous blood, in lymph, and in bile was measured following application of insulin to the liver surface and following peritoneal or intravenous administration. The results confirm that insulin is absorbed from the surface of the liver, but the glucose modulating effect was less effective than after intravenous administration. The insulin concentration in bile was increased after insulin administration by all routes, with the highest and most prolonged increases found after intraperitoneal administration. The results suggest that following transhepatic and intravenous administration, insulin reaches the bile without passing through the liver cells.
Publisher
Canadian Science Publishing
Subject
Physiology (medical),Pharmacology,General Medicine,Physiology
Cited by
3 articles.
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