Methods The serum INS and C P levels were measured with radioimmunoassay in 82 patients with type 2 diabetes mellitus and 50 health subjects at fasting and 2, 4, 6min after being injected L ARG.

• 方法 采用精氨酸兴奋试验及放免法，分别检测了82 例2 型糖尿病病人空腹及左旋精氨酸（L－ARG）刺激后2，4，6m in 时胰岛素（INS）和C肽（C－P）水平变化，并与50 例健康人进行对照。