[Abstract] [Full Text PDF] (in Japanese / 501KB) [Members Only And Two Factor Auth.]

J.Jpn. Surg. Soc.. 93(1): 36-42, 1992


Original article

CHANGES OF THE INSULIN AND GLUCAGON RECEPTORS IN BILE-DUCT LIGATED RATS

The First Department of Surgery, Okayama University Medical School, Okayama, Japan

Hironori Sakai

The specific bindings of insulin and glucagon to 40000g pellets including hepatic plasma membrane were measured at 1, 2 or 4 weeks after bile-duct ligation or sham operation in rats.
At 1 week after operation, insulin bindings were similar in both bile-duct ligated and control rats, however, glucagon binding in bile-duct ligated rats (30.1±5.99%) was significantly (p<0.01) lower than that in control rats (42.8±8.13%).
At 2 and 4 weeks after operation, insulin bindings in bile-duct ligated rats (2 weeks: 35.2±3.32%, 4 weeks: 32.3±4.62%) were significantly (p<0.05) lower than those in control rats (2 weeks: 39.7±5.12%, 4 weeks: 38.4±3.85%).
Therefore, glucagon bindings in bile-duct ligated rats (2 weeks: 26.3±4.32%, 4 weeks: 26.9±4.06%) were significantly (p<0.01) lower than those in control rats (2 weeks: 42.0±3.95%, 4 weeks: 45.3±4.29%). Decrease of insulin bindings, however, was less than that of glucagon bindings.
Changes of the insulin and glucagon receptors on the hepatic plasma membrane suggested a reason for a disturbance of carbohydrate metabolism in the liver cell with obstructive jaundice.


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