高脂血症患者HDL亚类组成与脂蛋白酯酶基因内含子8 HindⅢ多态性的关系  

Relationship between subclasses of serum HDL and LPL gene HindⅢ polymorphism in hyperlipidemia

作　　者：田英[1] 张蓉[1] 龙石银[1] 傅明德[1] 徐燕华[2] 

机构地区：[1]四川大学华西基础医学与法医学院生物化学与分子生物学教研室,四川成都610041 [2]华神集团博士后研究工作站,四川成都610041

出　　处：《中国病理生理杂志》2005年第7期1359-1363,共5页Chinese Journal of Pathophysiology

基　　金：纽约中华医学基金资助项目(No.CMB82-412)

摘　　要：目的:探讨高脂血症患者脂蛋白酯酶基因内含子8HindⅢ酶切位点多态性与HDL亚类组成的变化关系。方法:采用聚合酶链反应-限制性片段长度多态性和双向电泳-免疫印迹检测法,分析152例高脂血症患者和128例血脂正常者的脂蛋白酯酶基因内含子8HindⅢ多态性、HDL亚类组成及相对百分含量。结果:高脂血症组和对照组均以H+H+基因型为主,但高脂血症组H+H+基因型频率显著高于对照组,而H+H-和H-H-基因型频率显著低于对照组(P<0.05)。高脂血症组H+等位基因频率显著高于对照组,而H-等位基因频率显著低于对照组(P<0.05)。高脂血症组和正常对照组H+H+基因型者血清TG明显高于H-H-者;高脂血症组H+H+基因型者apoB100、TG/HDL-C比值明显高于H-H-者(P<0.05)。高脂血症患者H+H+基因型小颗粒的preβ1-HDL、HDL3b相对含量多于H-H-者,大颗粒的HDL2a、HDL2b相对含量少于H-H-者;正常对照组H+H+基因型HDL3c多于H-H-者,而HDL2a少于H-H-者,其差异均显著(P<0.05)。结论:中国人高脂血症患者脂蛋白酯酶基因HindⅢ酶切位点多态性与HDL亚类的组成相关。AIM: To investigate lipoprotein lipase gene HindⅢ polymorphism and its relationship with serum lipids and apolipoprotein, serum HDL subclasses in patients with hyperlipoidemia. METHODS: Lipoprotein lipase gene HindⅢ polymorphism was assayed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The subclasses of serum HDL in 152 hyperlipoidemia patients and 128 healthy subjects were determined by two-dimensional gel electrophoresis conjunction with immunodetection method. RESULTS: H+H+ genotype and allele H+ in hyperlipoidemia and control groups were both the highest. In hyperlipidemia group, H+H+ genotypes tended to be higher than that in control group, while H+H- and H-H- genotypes were significantly lower (P<0.05). In hyperlipidemia group allele H+ carriers' frequency tended to be higher than that in control group (P<0.05). In hyperlipoidemia group, the genotype of H+H+ showed higher serum TG, apoB100 levels, TG/HDL-C ratio, preβ_1-HDL, HDL_(3b) and lower HDL_(2a), HDL_(2b) compared with H-H- (P<0.05). In control group, the genotype of H+H+ had higher serum TG,HDL_(3c) and lower HDL_(2a) compared with H-H- (P<0.05). CONCLUSION: The HindⅢ polymorphism at intron 8 of LPL gene is associated with the general shift toward smaller size of HDL particle size in hyperlipoidemia, and the change of HDL subclasses distribution profile may be closely related to the pathogenesis of atherosclerosis in Chinese patients with hyperlipoidemia.

关 键 词：高脂血症 脂蛋白酯酶 HDL亚类 

分 类 号：R363[医药卫生—病理学]