摘要
目的观察老年脑梗死患者血清胆固醇、高密度脂蛋白及其图谱的变化.方法采用改良的双梯度聚丙烯酰胺凝胶电泳法检测118例老年脑梗死患者和60例健康老年人的血清脂蛋白谱(SLPG),同时测定血清总胆固醇(TC)和高密度脂蛋白胆固醇(HDL-C)含量.结果与对照组比较,老年脑梗死组血清HDL-C含量[(1.0±0.3)mmol/L]显著降低(P＜0.001),TC/HDL-C(5.3±1.4)显著增高(P＜0.001),而TC含量](5.0±1.5)rmmo1/L]则无显著统计学差异.老年脑梗死组SLPG异常率为86.4%,不管HDL-C含量降低与否,α脂蛋白在SLPG的表现均显著异常(P<0.001～0.05).结论血清HDL-C水平降低、TC/HDL-C增高以及SLPG异常可能是老年脑梗死发病的危险因素,其中α脂蛋白图谱较HDL-C更具敏感性,而TC水平的预警作用可能不大.
Objective To investigate the changes in the levels of serum cholesterol and high-density lipoprotein and in serum lipoprotein electrophoretogram in elderly patients with cerebral infarction. Methods Serum lipoprotein electrophoretograms (SLPG) of 118 elderly patients with cerebral infarction and 60 healthy elderly subjects were measured by means of double gradient polyacrylamide gel electrophoresis, and the serum concentrations of total cholesterol (TC) and high-density lipoprotein cholesterol (HDL-C) were determined by enzymatic method. Results Compared with the control group, the serum level of HDL-C was significantly increased in the patients (1.0±0.3 mmol/L), who also had decreased TC/HDL-C ratio (5.3±1.4), but no significant difference occurred in terms of TC concentration between these two groups. Among the patients with cerebral infarction, 86.4% had abnormalities of SLPG, especially in the alpha-lipoprotein electrophoretogram (P<0.001-0.05) regardless of HDL-C elevations. Conclusions Decreased HDL-C, elevated TC/HDL-C ratio and abnormal SLPG may be the risk factors for the onset of cerebral infarction in senior patients, for which alpha-lipoprotein electrophoretogram can be more sensitive than serum HDL-C level. TC levels is of little value in predicting cerebral infarction.
出处
《第一军医大学学报》
CSCD
北大核心
2003年第8期844-846,共3页
Journal of First Military Medical University
关键词
脑梗死
胆固醇
脂蛋白
血清脂蛋白谱
cerebral infarction
cholesterol
lipoprotein
serum lipoprotein electrophoretogram
