中老年男性血糖与血清脂质及载脂蛋白的关系

Relation of plasma glucose levels to serum lipids and apolipoproteins levels in middle and old age males]

OBJECTIVE: To gain an insight into the relation of plasma glucose levels to lipids and apolipoproteins levels. METHODS: Fasting 12-14 h blood glucose (BG), high density lipoprotein cholestrol(LDL-C), apolipoproteins(apo) A I, A II, B100, C II, C III and E levels were measured in 735 men aged 40-70 in Chengdu area. The subjects studied were divided into three groups by the plasma glucose levels: 1. normal group (S1), 2. decreased glucose tolerance group (S2), 3. diabetes mellitus (DM) group (S3). RESULTS: Among 735 cases studied, groups S2 and S3 had more hyperlipidemia than group S1 (64%, 45% and 32.2% respectively). The fasting serum mean TG levels in groups S2 (3.62 +/- 2.52 mmol/L) and S3 (4.45 +/- 3.82 mmol/L) group were significantly higher than that in group S1 (1.92 +/- 1.39 mmol/L) (P < 0.01 and P < 0.01), and the mean TG levels in groups S2 (5.68 +/- 1.15 mmol/L) and S3 (5.68 +/- 1.12 mmol/L) were higher than that in group S1 (5.13 +/- 1.06 mmol/L) (P < 0.05, P < 0.05). The serum apo B100, C II, C III and E levels in groups S2 and S3 were significantly higher as compared with that in the normal group (P < 0.01, P < 0.05). The correlation analysis indicated that there was a positive correlation of BG with serum TG in groups S1, S2 and S3 whose correlation coefficients (r) were 0.1800, 0.1436 and 0.3212 respectively (P < 0.001); and a negative correlation with HDL-C levels in groups S2 and S3 (r = -0.2534 and -0.1477, P < 0.001). The plasma glucose levels were positively correlated with apo B100, C III and E levels in groups S1, S2 and S3, P < 0.001), with apo C II in groups S1 and S2 (P < 0.001, P < 0.01); and negatively correlate to apoA I only in group S2 (r = -0.1182, P < 0.01). CONCLUSION: The results suggest that serum TG, TC, HDL-C, apoB100, C II, C III and E levels be the main factors that related to plasma glucose levels.