期刊
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
卷 91, 期 9, 页码 3521-3527出版社
ENDOCRINE SOC
DOI: 10.1210/jc.2006-0116
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资金
- NHLBI NIH HHS [HL54776] Funding Source: Medline
Context and Objective: It is unclear whether lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) exerts a pro- or antiatherogenic effect on cardiovascular disease (CVD). We investigated the association between Lp-PLA(2) variant (V279F and A379V) and CVD in Korean men. Design: CVD patients (n = 532) and healthy controls (n = 670) were genotyped for the Lp-PLA2 polymorphism (V279F and A379V). Main Outcome Measures: We calculated odds ratio (OR) on CVD risk and measured anthropometries, lipid profiles, low-density lipoprotein (LDL) particle size, oxidized LDL, lipid peroxides, and Lp-PLA(2) activity. Results: The presence of the 279F allele was associated with a lower risk of CVD [OR 0.646 (95% confidence interval 0.490 - 0.850), P = 0.002], and the association still remained after adjustments for age, body mass index, waist circumference, waist to hip ratio, cigarette smoking, and alcohol consumption [OR 0.683 (95% confidence interval 0.512 - 0.911), P = 0.009]. Lp-PLA(2) activity was lower in CVD patients taking a lipid-lowering drug (31%), those not taking a lipid-lowering drug (26%), and control subjects (23%) with the V/F genotype, compared with those with the V/V genotype. Subjects with the F/F genotype in controls and two CVD patients groups showed no appreciable enzymatic activity. Control subjects with the V/ F genotype had larger LDL particle size than those with the V/V genotype. In addition, control subjects carrying the F allele showed lower malondialdehyde concentrations. On the other hand, we found no significant relationship between A379V genotype and CVD risk. Conclusions: The association of the F279 loss of function variant with the reduced risk of CVD supports the concept that Lp-PLA2 plays a proatherogenic and causative role in CVD.
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