Abstract：
:It is well known that several amino acids, such as arginine, are potent stimuli for insulin and glucagon secretion from the pancreas. Recently, vagal arginine sensors, which modulate arginine-induced pancreatic hormone secretion, have been reported to exist in the liver. The present investigation was designed to evaluate the role played by gluconeogenesis in this hepatic influence. To this end, we studied the effects of an intraperitoneal injection of 3-mercaptopicolinic acid (3-MPA), a gluconeogenic inhibitor, on the pancreatic hormonal response induced by intraperitoneal administration of arginine (1 g/kg body mass) to hepatic vagotomized and sham vagotomized rats. Fifteen min following the injection of arginine, the increases in glucose and insulin concentrations were significantly lower in rats with an inhibited gluconeogenesis than in rats with an intact capacity for gluconeogenesis. There were no effects of the hepatic vagotomy on the arginine-induced hormonal responses either with or without the 3-MPA injection. The results suggest that gluconeogenesis is implicated in the hepatic modulation of arginine-induced pancreatic hormone secretion.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Trabelsi F,Hélie R,Bergeron R,Lavoie JMdoi
10.1016/0031-9384(94)00390-4subject
Has Abstractpub_date
1995-04-01 00:00:00pages
797-802issue
4eissn
0031-9384issn
1873-507Xpii
0031-9384(94)00390-4journal_volume
57pub_type
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