[Evaluation for serum apolipoproteins in patients with diabetes mellitus]

Six fractions of serum apolipoproteins (apolipoprotein A-I, A-II, B, C-II, C-III and E) obtained from 100 patients with diabetes mellitus not administered any antihyperlipidemic drugs were measured to clarify the relationship between diabetes mellitus and the abnormal lipidosis. The serum concentrations of apolipoprotein B, C-II and C-III were significantly higher in these diabetics than in the controls (p < 0.05), and that of apolipoprotein E was significantly lower (p < 0.01). The serum concentrations of apolipoprotein C-II, C-III and E (p < 0.05) as well as HbA1C and FRA (p < 0.001) were significantly higher in the insufficient control group (FPG > or = 140 mg/dl) of diabetes mellitus. The serum concentrations of apolipoprotein C-II, C-III and E were significantly higher in the treated groups (p < 0.05). The serum concentrations of apolipoprotein B, C-II, C-III and E were significantly higher (p < 0.01) in the high cholesterol group (> 220mg/dl) and the high triglyceride group (> 150mg/dl) among the diabetic groups, but no significant differences were observed in the concentrations of apolipoprotein A-I and A-II.