Volume and enzyme kinetics of human pancreatic secretion after endogenous stimulation with the lundh test meal

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Abstract
Summary The present study was undertaken to investigate the volume and enzyme kinetics of human pancreatic secretion, after endogenous stimulation with a Lundh test meal, and evaluate the most reliable enzyme and collection period. The prestimulatory volume rates did not differentiate normal from pathologic pancreatic function. After ingestion of the test meal, the immediate increase in volume secretion was identical in healthy subjects and patients with pancreatic insufficiency. The latter showed a drastic reduction of prestimulatory and postprandial enzyme secretion. Cimetidine taken orally 12 and 2 h before the test meal study had no effect on volume and enzyme secretion and endogenous CCK release. Especially in severe pancreatic insufficiency, this modification simplified the performance of the Lundh test. The estimation of lipase and trypsin gave a significant correlation between Lundh test and secretin-cerulein test. The endogenous stimulation by Lundh test meal is a reliable test for routine diagnostic and scientific purposes.