Methods The serum insulin(INS) and C-peptide(C-P) levels were measured in85 pa- tients with type diabetes mellitus and 6 0 healthy subjects at fasting,2 ,4and 6 min after being injected L-ARG with radioim- munoassay.

• 2方法 采用放射免疫法分别检测了 85例病人空腹及左旋精氨酸 (L- ARG)刺激后 2 ,4,6 m in时的胰岛素 (INS)、C肽 (C- P)水平的变化 ,并与 6 0例健康人进行对照。