in order to determine the role of the endogenous opiatergic system in modulation of human pancreatic b-cell function and taste perception , we measured the reactivity of gustatory receptors ( electrogustometry ) , insulin and c-peptide serum concentration ( radioimmunoassay ) in six normal men ( aged 24-26 years ) during sham feeding and 0.8 mg of naloxone or placebo ( saline ) administration .
C0086418
human
C0006558
c-peptide