to determine whether abnormalities in glucagon secretion might precede the onset of hyperglycemia in diabetes mellitus , 32 prediabetic pima ( american ) indians , 27 normal pima indians and 34 normal caucasians received an infusion of arginine monochloride ( 5 mg/kg/min for 40 minutes ) with measurement of glucose , insulin , and glucagon .
C0020456
hyperglycemia
C0021641
insulin