Abstract

We have compared the concentrations and total outputs of trypsin, amylase, and lipase secreted into the duodenum during secretin pancreozymin and Lundh Borgström tests in order to assess the relative intensity of pancreatic stimulation provided by these means. The mean concentration of trypsin, and the mean 10 minute total output of trypsin, amylase, and lipase after the meal (though less than the peak post-prandial responses) were equal to the respective peak enzyme responses after intravenous injection of 2 Crick Harper Raper units per kg of secretin Boots; and after intravenous injection of 2 Crick Harper Raper units per kg of pancreozymin Boots.