Methods:Radio immune assay (RIA) was used to examine total proinsulin immunoreactivity (PIM), immune reactive insulin (IRI) and C peptide (CP) in patients with type 2 diabetes mellitus (DM) and control subjects.

• 方法 :采用放射免疫分析法测定 2型糖尿病患者和正常对照组血浆前胰岛素 (PIM)、胰岛素 (IRI)和 C肽 (CP)水平。