in vitro addition of rat insulin ( 200 , 400 or 800 muu/ml ) to collagenase-isolated pancreatic islets of adult rats diminished glucose ( 3 mg/ml ) -induced insulin release which was correlated with a decrease of the ratio of total nadph/nadp and inhibition of glucose oxidation via the pentose phosphate shunt ( pps ) .
C0022131
pancreatic islets
C0021641
insulin