Acute insulin responses to arginine ( AIRarg ) were measured at baseline and after @ months of treatment with @ days of drug washout under fasting , @ mg/dL ( glucose potentiation of arginine-induced insulin release -LSB- AIRpot -RSB- ) , and @ mg/dL ( maximum arginine-induced insulin release -LSB- AIRmax -RSB- ) hyperglycemic clamp conditions , in which AIRmax provides the - cell secretory capacity .