A new radioimmunoassay for secretin was used to investigate (a) serum secretin responses to intraduodenally infused HCl and glucose, (b) the metabolic half-life and the volume of distribution of exogenous secretin and (c) the effect of endogenously released secretin on insulin secretion in 25 anesthetized dogs. Portal and femoral venous blood samples were taken simultaneously before, during, and after intraduodenal infusion of HCl (21 meq/30 min) and glucose (131 ml/30 min). Control experiments were performed with intraduodenal infusion of saline.
Guenther Boden, Noorjehan Essa, Oliver E. Owen, Frederick A. Reichle, Walter Saraga
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Secretin release after Roux-en-Y gastric bypass reveals a population of glucose-sensitive S cells in distal small intestine
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