when pancreatic islets were incubated in a fixed volume of stationary buffer containing unlabeled glucose ( 1.0 mg or 3.0 mg/ml ) and glucose-u-14c ( 1.0 muc/ml ) , the amount of insulin secreted and the 14co2 produced by each islet decreased progressively as the number of islets in the sample increased .
C0022131
pancreatic islets
C0021641
insulin