pancreatic secretion of total protein and of three types of hydrolases ( amylase , lipase , and thymotrypsinogen ( s ) was determined in human subjects free of gastrointestinal disease . pure pancreatic juice was collected by canulation of wirsung 's duct under duodenoscopy . rapid intravenous injection of pancreozymin ( 1 crick-harper-raper u per kg ) stimulated secretion of total protein and hydrolases within 1 min . this stimulation was of short duration and had a half-life of 70 to 100 sec . rapid intravenous injection of caerulein ( 20 ) ng per kg ) induced a similar response .
C0023764
lipase
C0020289
hydrolases